gee there really is bugger all space there ae?
Have you got any plans on how your gunna modify the grill etc?
RB25Det Nissan Terrano
Moderator: Mark
Re: RB25Det Nissan Terrano
Hey dirtydog, space is not to bad limited front ways but quite abit on the sides which is also nice can reach over and change oil filter ect from the top... The grill hopefully will not need modifying as it is spaced from the bonnet latch cross beam.. fingers crossed anyway. Got the part today i was waiting for so driveline will be finished this weekend and the truck will sit once again on all 4 wheels. Pics will follow
Re: RB25Det Nissan Terrano
sweet as lookin foward to it 
Re: RB25Det Nissan Terrano
well where to start... absolute **** of a job assembling the driveline in the weekend. Due to the flexiplates from the td and rb been different shape i had to use 2mm packing washers between the flexiplate and the torque converter to get it at correct location in pump. Anyway i had this bright idea i would glue the washers on the TC as you cannot get them once gearbox is lifted in place. After 4 hours off wrestling the gearbox on 2 jacks sitting on gravel (jacks dont wheel at all) the tranny was in and i was doing up the finally TC bolt then the dredded happened and the last washer fell off between the TC and flexi...so needless to say after yelling every swear word invented the gearbox had to come out and the process started again. This set me back a day. The driveline is now installed and i came across my next dilemma, the trans oil cooler lines are mainly steel tube..you cannot fit them once the trans is lifted into place (well i cant since my trans has been lifted) so i ran the drivers side one fine but the passenger side i used hydraulic hose. So machining my front drive shaft spacer this weekend then will finish the exhaust system, i made up a 3" dump pipe as i was not happy running 2.5" dump (standard) with 3" exhaust i also received the mufflar and flexi so everything there now to finish exhaust with a grand total of $640.00 (was quoted around $1000.00)
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- Torsions are not set yet.. still need raising and leveling
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Re: RB25Det Nissan Terrano
Looks cool very cool. Can i sugest next time you use cotton to tie the washers on. Its an old trick and it works very well
Re: RB25Det Nissan Terrano
Fingers crossed i never have to do that again Wax, but thanks will remember that for next time.
Well today i finished fabricating the exhaust system and i have to be honest i will never attempt to stick weld a exhaust ever, ever, ever again. Most frustrating jobs i have ever performed.
I also set the new high level on the new sump at 4.5litres, and found a slight leak out the rear crank seal which is common if an engines been sitting dry for a while, should seal up once engine runs (fingers crossed). I turned engine over by jumping the started to get oil through entire engine before setting dip stick level. (please note the oil leak occured after i cranked engine over, the oil level does not reach that high)
I have also had to modify the power steering pump to get it back 13mm as it originally ran off the front crank pully which i machined off to get clearance, since i dont run a/c i used its groove to run the power steering. Will have to monitor pump as it is a bigger driven pully now so it will be running at a higher RPM, will change p/s pully if problem occurs.
I purchased a new radiator which would of fitted snug, the guy gave me overall measurements that are 30mm smaller than the actual size so more mucking around trying to get him to refund it. When things get this tight its down to the mm. Are waiting for my new power steering lines which i got the local hydraulink shop to make up, also installed front drive shaft which i had a 30mm (drive train moved back that far) machined. All the small jobs are starting to really slow progress.
Well today i finished fabricating the exhaust system and i have to be honest i will never attempt to stick weld a exhaust ever, ever, ever again. Most frustrating jobs i have ever performed.
I also set the new high level on the new sump at 4.5litres, and found a slight leak out the rear crank seal which is common if an engines been sitting dry for a while, should seal up once engine runs (fingers crossed). I turned engine over by jumping the started to get oil through entire engine before setting dip stick level. (please note the oil leak occured after i cranked engine over, the oil level does not reach that high)
I have also had to modify the power steering pump to get it back 13mm as it originally ran off the front crank pully which i machined off to get clearance, since i dont run a/c i used its groove to run the power steering. Will have to monitor pump as it is a bigger driven pully now so it will be running at a higher RPM, will change p/s pully if problem occurs.
I purchased a new radiator which would of fitted snug, the guy gave me overall measurements that are 30mm smaller than the actual size so more mucking around trying to get him to refund it. When things get this tight its down to the mm. Are waiting for my new power steering lines which i got the local hydraulink shop to make up, also installed front drive shaft which i had a 30mm (drive train moved back that far) machined. All the small jobs are starting to really slow progress.
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passengerpete
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Re: RB25Det Nissan Terrano
looking good, 
the little things are a pain in the but, and take up so much time, but still need to be done none the less, keep up the good work you will get there.
the little things are a pain in the but, and take up so much time, but still need to be done none the less, keep up the good work you will get there.Re: RB25Det Nissan Terrano
Well managed to spend few hours on the old girl today, ended up using the radiator i had purchased as refunding it was a hassel.
I mounted the radiator today, i fabricated a new front cross beam out of 1.6mm plate that i pressed into a channel, this holds the radiator snugand secure and allows for easy removal the only problem with the bigger radiator is i have to now use bonnet pins as the bonnet latch will not fit, some flush fitting ones are on the way. Room is pretty tight up there but will think of a way to get a fan in there even if its to one side. Managed to fit it behind the grill also so thats a plus.
I also mounted the fuel tank, there is a picture of how i convertered the diesel tank into a petrol, that is a rb25 fuel pump mounted onto the original outlet pipe at the correct height and a brace made for it so its nice and secure.
To finish the day off i started to brain storm ideas of how to mount the intercooler, this is the isuzu b/h one i had purchased but am think about purchasing one that has inlet/outlet on the same side. This will save alot of pipe work and can be positioned as pictured.
I mounted the radiator today, i fabricated a new front cross beam out of 1.6mm plate that i pressed into a channel, this holds the radiator snugand secure and allows for easy removal the only problem with the bigger radiator is i have to now use bonnet pins as the bonnet latch will not fit, some flush fitting ones are on the way. Room is pretty tight up there but will think of a way to get a fan in there even if its to one side. Managed to fit it behind the grill also so thats a plus.
I also mounted the fuel tank, there is a picture of how i convertered the diesel tank into a petrol, that is a rb25 fuel pump mounted onto the original outlet pipe at the correct height and a brace made for it so its nice and secure.
To finish the day off i started to brain storm ideas of how to mount the intercooler, this is the isuzu b/h one i had purchased but am think about purchasing one that has inlet/outlet on the same side. This will save alot of pipe work and can be positioned as pictured.
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Re: RB25Det Nissan Terrano
looking good as, slowly getting there.
have you thought about a water to air intercooler?
the subaru ones have inlet/outlet on the same side.
have you thought about a water to air intercooler?
the subaru ones have inlet/outlet on the same side.
Re: RB25Det Nissan Terrano
Hey Dirty dog looked into the subaru intercoolers they were good but decided to go the hard way about it as usual and use the bighorn intercooler.
Progress on the truck has been good, may not look like much but have been getting alot done..
*powersteering lines have been made up
*Finished all nuts and bolt underneath (had to trim orignal G/box gaurd as moved drive train back and as hitting torsion bar brace)
*Mounted new bonnet latches
*Mounted radiator permanetly
*Started reinstalling interior
*Fab new drive shaft hanger (after body lift)
*Wired fuel pump to a kill switch that is hidden uncase somebody decideds they like it more than me i ill find it within 500m radius tops.
Just have intercooler piping left which i will do next saturday then the following week (2 weeks time) the truck is off to get wired up at last... hopefully not to many teething problems then and it will come home for a week to finish little bits and peices such as raises bumpers then go get certified. Total build cost to date is $4708.00 (including bodylift)
For any of you guys that have terranos could you please pop the bonnet and tell me which port on the powersteering rack is the high pressure feed? theres two ports one front and back in line, one line runs down from powersteering fluid pot just dont remember which one
Progress on the truck has been good, may not look like much but have been getting alot done..
*powersteering lines have been made up
*Finished all nuts and bolt underneath (had to trim orignal G/box gaurd as moved drive train back and as hitting torsion bar brace)
*Mounted new bonnet latches
*Mounted radiator permanetly
*Started reinstalling interior
*Fab new drive shaft hanger (after body lift)
*Wired fuel pump to a kill switch that is hidden uncase somebody decideds they like it more than me i ill find it within 500m radius tops.
Just have intercooler piping left which i will do next saturday then the following week (2 weeks time) the truck is off to get wired up at last... hopefully not to many teething problems then and it will come home for a week to finish little bits and peices such as raises bumpers then go get certified. Total build cost to date is $4708.00 (including bodylift)
For any of you guys that have terranos could you please pop the bonnet and tell me which port on the powersteering rack is the high pressure feed? theres two ports one front and back in line, one line runs down from powersteering fluid pot just dont remember which one
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Crash bandicoot
- Hard Yaka
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Re: RB25Det Nissan Terrano
great job, seeing all that minimalist space in front of the engine brings back memories. lol, good choice on the intercooler too. It will remove the heat saturation better.
Just watch your front axles from now on, they go "snap" real easy when driven by a RB.
Just watch your front axles from now on, they go "snap" real easy when driven by a RB.
Waiter...there is a drought in my glass.
Re: RB25Det Nissan Terrano
front runs to the pump on mine, back one to the pot. hope that helps.
i dont think you would have been able to use the subaru water to air one anyway, doesn't look like enough room for another radiator.
i dont think you would have been able to use the subaru water to air one anyway, doesn't look like enough room for another radiator.
Re: RB25Det Nissan Terrano
well today the truck finally went to the auto sparky, a little behind schedule but waiting for bits can do that...
Auto sparky kinder shat his pants when he saw the job which wasnt encouraging, Problem number one, he tryed to say the engine will run in "limp mode"(max 5psi boost and over fueling) since the truck does not have traction control or abs sending signals to ecu. After alot of phone calls to rb engine experts i was informed that was not the case, as long as the engine has all the sensor plug ect on the engine in it shall be fine..
Problem number two, because it is a electronic transmission it required a signal from the engine to operate without going into "limp mode" (stays in 3rd gear), this signal comes from the tacho or engine RPM, now this were it gets confusing a diesel sends a square signal and a petrol sends a curved signal (been a engineer i straight away scratch my head with a dull look and think of round bar and box section...dont think that is what he meant) This signal needs to be convertered coming from the now petrol engine which needs to be convertered back to a diesel signal before it reaches the transmission. This is possible i am told...
Anyway plan b if not of this works out the engine will be fitted with a aftermarket megasquirt ECU which can send signals to the transmisson. Will keep informed as i find out the verdict
P.s what better way to tow it into town than with another trusty old Nissan, and i must admit due to the turbo big enough to suck a small child through the patrol pulled the terrano very well even up large hills...take alot to break this bond with Nissans
Auto sparky kinder shat his pants when he saw the job which wasnt encouraging, Problem number one, he tryed to say the engine will run in "limp mode"(max 5psi boost and over fueling) since the truck does not have traction control or abs sending signals to ecu. After alot of phone calls to rb engine experts i was informed that was not the case, as long as the engine has all the sensor plug ect on the engine in it shall be fine..
Problem number two, because it is a electronic transmission it required a signal from the engine to operate without going into "limp mode" (stays in 3rd gear), this signal comes from the tacho or engine RPM, now this were it gets confusing a diesel sends a square signal and a petrol sends a curved signal (been a engineer i straight away scratch my head with a dull look and think of round bar and box section...dont think that is what he meant) This signal needs to be convertered coming from the now petrol engine which needs to be convertered back to a diesel signal before it reaches the transmission. This is possible i am told...
Anyway plan b if not of this works out the engine will be fitted with a aftermarket megasquirt ECU which can send signals to the transmisson. Will keep informed as i find out the verdict
P.s what better way to tow it into town than with another trusty old Nissan, and i must admit due to the turbo big enough to suck a small child through the patrol pulled the terrano very well even up large hills...take alot to break this bond with Nissans
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Last edited by Paulballz on Fri Sep 21, 2012 6:08 pm, edited 1 time in total.
Re: RB25Det Nissan Terrano
thats amazing job
Paulballz wrote:well today the truck finally went to the auto sparky, a little behind schedule but waiting for bits can do that...
Auto sparky kinder shat his pants when he saw the job which wasnt encouraging, Problem number one, he tryed to say the engine will run in "limp mode"(max 5psi boost and over fueling) since the truck does not have traction control or abs sending signals to ecu. After alot of phone calls to rb engine experts i was informed that was not the case, as long as the engine has all the sensor plug ect on the engine in it shall be fine..
Problem number two, because it is a electronic transmission it required a signal from the engine to operate without going into "limp mode" (stays in 3rd gear), this signal comes from the tacho or engine RPM, now this were it gets confusing a diesel sends a square signal and a petrol sends a curved signal (been a engineer i straight i scratch my head with a dull look and think of round bar and box section...dont think that is what he meant) This signal needs to be convertered coming from the now petrol engine which needs to be convertered back to a diesel signal before it reaches the transmission. This is possible i am told...
Anyway plan b if not of this works out the engine will be fitted with a aftermarket megasquirt ECU which can send signals to the transmisson. Will keep informed as i find out the verdict
P.s what better way to tow it into town than with another trusty old Nissan, and i must admit due to the turbo big enough to suck a small child through the patrol pulled the terrano very well even up large hills...take alot to break this bond with Nissans
Re: RB25Det Nissan Terrano
thanks leon, has been a fair bit of work over the last few months but all in all for under $6000 i have a good truck that will hopefully be well worth it
Re: RB25Det Nissan Terrano
Paulballz wrote:take alot to break this bond with Nissans
With ya there
Re: RB25Det Nissan Terrano
Whens the video coming? 
This must sound sick, love the sound of an RB.
On another note, the odd little thing I'm curious about, how did you go about sealing up where you fed the fuel pump wires thru the tank cap?
This must sound sick, love the sound of an RB.On another note, the odd little thing I'm curious about, how did you go about sealing up where you fed the fuel pump wires thru the tank cap?
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Newly brought currently bog standard Discovery V8i with a drinking problem
Newly brought currently bog standard Discovery V8i with a drinking problem
Re: RB25Det Nissan Terrano
Video wont be far away 
,dont know yet hopefully sounds good, will know in next week or so...I gas welded 2 small tubes into the cap holes i drill that had approx 6mm ID and 30mm long.. i run both the wires through one each to keep them seperated and sealed with the same stuff i used to seal the sump (great stuff), i made sure they were very central while drying to avoid them been any were close to steel to avoid rubbing.. Only ended up a couple of mm clearance around the wires tho that the sealant fulled nicely
,dont know yet hopefully sounds good, will know in next week or so...I gas welded 2 small tubes into the cap holes i drill that had approx 6mm ID and 30mm long.. i run both the wires through one each to keep them seperated and sealed with the same stuff i used to seal the sump (great stuff), i made sure they were very central while drying to avoid them been any were close to steel to avoid rubbing.. Only ended up a couple of mm clearance around the wires tho that the sealant fulled nicelyRe: RB25Det Nissan Terrano
Ah yup sweet figured something like that would work, like crc red gasket or whichever one is best suited for fuel. I just know I'm not paying the $385 the gu yon trademe charges for 'EFI pump conversions'..which after finding a pic of a completed one is just a generic pump cable-tied onto the original pipes! Im pretty sure I could do that with any old $20 pump from pickapart so he must use real expensive cable ties haha
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Newly brought currently bog standard Discovery V8i with a drinking problem
Newly brought currently bog standard Discovery V8i with a drinking problem
Re: RB25Det Nissan Terrano
haha yeah i got same sort of information, people saying i needed this, that...while i was researching how to do it, in the end costed me $50 off trademe for a rb25 fuel pump, then hack sawed the diesel pickup, made bracket, ran wires and all done...have tested and works a treat all up costed about $55 for the conversion
Re: RB25Det Nissan Terrano
3VILC wrote:like crc red gasket or whichever one is best suited for fuel.
make sure the sealant you used was not a silicone based sealer, silicone and petrol do not get on and will quite rapidly fail as a sealer.
Cheers
Pedro
Re: RB25Det Nissan Terrano
Paulballz wrote:Problem number two, because it is a electronic transmission it required a signal from the engine to operate without going into "limp mode" (stays in 3rd gear), this signal comes from the tacho or engine RPM, now this were it gets confusing a diesel sends a square signal and a petrol sends a curved signal (been a engineer i straight away scratch my head with a dull look and think of round bar and box section...dont think that is what he meant) This signal needs to be convertered coming from the now petrol engine which needs to be convertered back to a diesel signal before it reaches the transmission. This is possible i am told...
Why not just convert it to a manual shift trans?
Re: RB25Det Nissan Terrano
Yup your right there Pedro, i have tested the stuff in a small fuel bath and it seemed to with stand quite well...
If it was as easy and just put a manual in trust me i would of long ago, nothing is ever that simple though... 1st reason i kept the auto as it is not old and is very good condition internally, 2nd reason is it bolts straight up a rb bellhousing as these auto tranmissions are used with rb engines. The automatic is not long term but ill do for now.
Eventually when funds recover from the engine conversion this engine will be mated to a safari gearbox and have a solid safari diff up front
If it was as easy and just put a manual in trust me i would of long ago, nothing is ever that simple though... 1st reason i kept the auto as it is not old and is very good condition internally, 2nd reason is it bolts straight up a rb bellhousing as these auto tranmissions are used with rb engines. The automatic is not long term but ill do for now.
Eventually when funds recover from the engine conversion this engine will be mated to a safari gearbox and have a solid safari diff up front
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Rotazuk
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Re: RB25Det Nissan Terrano
I think Turoa means make the automatic a manual shift , not swap out the auto for a manual gearbox . If you are going to swap it out to a manual at some stage maybe its not worth swapping to a new computer just for the auto .
Chris
Chris
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Crash bandicoot
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Re: RB25Det Nissan Terrano
Bullshit, an RB will run with the following sensors
AFM
CAS
Knock
FPCM
Nissan's ECU's are self learning, the start with a pre detirmined memory and then use the sensors to fine tune the engine management to the RAM in the ecu. it will default back to the first if no power supplied from battery.
This is to help the VTC on the later model twin cam RB's
and ensure the wire on the ecu which is a gauge 16 wire that is (used to be last time i looked) grey with a red stripe that runs from the coils to the ecu...its for the start sequence so the ECU knows when to start firing order of coils.
the others you'd want but not compulsory are
engine oil pressure,
coolant temp sender(otherwise it will run rich all day long) The two wire one not the single wire one, the single wire one goes to your instrument cluster.
The auto trans will only loose over drive if there are no wires plugged in. it is to do with the speed sensor, the same effect as unplugging the speedo.
this can be fixed by manually wiring the over drive button with a power feed wire.
AFM
CAS
Knock
FPCM
Nissan's ECU's are self learning, the start with a pre detirmined memory and then use the sensors to fine tune the engine management to the RAM in the ecu. it will default back to the first if no power supplied from battery.
This is to help the VTC on the later model twin cam RB's
and ensure the wire on the ecu which is a gauge 16 wire that is (used to be last time i looked) grey with a red stripe that runs from the coils to the ecu...its for the start sequence so the ECU knows when to start firing order of coils.
the others you'd want but not compulsory are
engine oil pressure,
coolant temp sender(otherwise it will run rich all day long) The two wire one not the single wire one, the single wire one goes to your instrument cluster.
The auto trans will only loose over drive if there are no wires plugged in. it is to do with the speed sensor, the same effect as unplugging the speedo.
this can be fixed by manually wiring the over drive button with a power feed wire.
Waiter...there is a drought in my glass.
Re: RB25Det Nissan Terrano
Crash bandicoot wrote:an RB will run...
Theres a LOT of difference between 'will run' and 'runs really well' ....
Crash bandicoot wrote:coolant temp sender(otherwise it will run rich all day long)
There ya go. It'l F its self real quick if its running rich the whole time. Oh and scoff fuel at twice the rate that the same engine would running properly that makes more power, more smoothly
Do it once, do it right.....
Re: RB25Det Nissan Terrano
oh my bad Turoa, yes that is an option i will look into i have not managed to find much information on it...
Yeah you are right to a degree crash, the only concerns is that the neo has alot of extra ECM crap.. I managed to contact the guy from trademe last night (well known up here for doing rb wire ups) and he sells a megasquirt stand alone engine management system, it has 16 wires that need to be spliced to some of the engine plugs and apart from a vacuum line the rest of the standard loom can be scraped. The megasquirt comes with a recent rb25det neo preset dyno tune on board. This option is sounding more and more like the go then i only need the auto sparky to wire up the alternator. If sparkys quote goes over $1000 then i will install the megasquirt $800.
That is interesting about the transmission i was researching it last night and did manage to find the wire diagram for it, its only link to the engine is the throttle position sensor, so it knows when to kick down ect... appreciate all the info
Yeah you are right to a degree crash, the only concerns is that the neo has alot of extra ECM crap.. I managed to contact the guy from trademe last night (well known up here for doing rb wire ups) and he sells a megasquirt stand alone engine management system, it has 16 wires that need to be spliced to some of the engine plugs and apart from a vacuum line the rest of the standard loom can be scraped. The megasquirt comes with a recent rb25det neo preset dyno tune on board. This option is sounding more and more like the go then i only need the auto sparky to wire up the alternator. If sparkys quote goes over $1000 then i will install the megasquirt $800.
That is interesting about the transmission i was researching it last night and did manage to find the wire diagram for it, its only link to the engine is the throttle position sensor, so it knows when to kick down ect... appreciate all the info
Re: RB25Det Nissan Terrano
alright all you sparkys out there could you please give me your opinions...The quote back from the auto sparky is $1200, this includes wiring the standard ecu, wiring alternator and extending some cables here and there and gauges... this does not include getting the trans to communicate with the engine. The problem is im 90% sure the engine will run fine but there is that 10% chance, so do i go with this or go with the DIY $800 megasquirt and wire that up? still will need to sort alternator and extend couple of wires my self, engine will be dyno tuned ect (the one problem with the megasquirt is it does not use knock sensors which i find concerning)..any knowledgable help will be greatly appreciated
Re: RB25Det Nissan Terrano
Well guys hope your sitting down i have quite alot to tell...
To get started i ended up buying the stand alone megasquirt ECU, i was told it was only 16 wires to wire up and simply do that and the engine will run, well it turns out this could not be any futher from the truth... After 6 full days of around 16hours per day, 5x relays, metres and metres of wiring/soldering ect and 1x cooked ECU later i managed to get the rb25det to fire and run on (5 cylinders over fueling)...This wiring was very in depth for a fitter engineer i had to learn so much from simple relaying, to measuing the ground pulse of the injectors...(to much to even start explaining)
Please note that the guy that sells the megasquirt is a very good, knowledgable guy and he has helped with countless amounts of emails..Free repairs ect...
Onto the next issue, Now the truck fired but had some very strange things happening, when the fuel pump was turned "ON" the engine would die...After stripping the whole fuel system i believe this is because of a blocked return line (This is why my diesel kept giving me problems, not a leaky pump seal as i expected, so in other words i removed diesel engine due to a blocked tank breather giving me shit...)..Now back to the RB engine this blocked fuel line over ran the "fuel pressure regulator" which meant the fuel pressure at the injectors with pump "ON" was at around 80psi+ not the needed 35psi...This over ran my injectors and filled my bores with fuel and nearly hydrolocked the engine.. So removed the fuel and dumped the contaminated new oil and fixed the blocked fuel tank breather..
This is where the next problem has occured... I checked the injectors with the system removed and noticed that all 6 are pulsing at the same time??? this is a tuning error on the megasquirt and is flooding the engine crazy as its injecting all cylinders on both strokes. Trying to sort this at moment.. Megasquirt plugs into your laptop so can monitor entire engine from there and alter everything just need to find out how, so i email megasquirt guy and he tells me what to change.
So i am waiting till tuesday to take all the injectors down to get checked ect...Am going to install a adjustable fuel pressure regulator this week so that will eliminate any problems there and i am lucky enough to have a lathe at my place now so can machine the adapters needed for this (and body lifts).
Here is a couple videos of it running, although sounds like a V8 due to cylinders flooding. the engine does sound very strong and no odd knocks...I also compression tested it after cranking hydrolocked and have 175 psi on 4 and 180 on 2 so thats all good.
http://www.youtube.com/watch?v=ne47zGfZFh0
http://www.youtube.com/watch?v=RwyltFPdEHI
To get started i ended up buying the stand alone megasquirt ECU, i was told it was only 16 wires to wire up and simply do that and the engine will run, well it turns out this could not be any futher from the truth... After 6 full days of around 16hours per day, 5x relays, metres and metres of wiring/soldering ect and 1x cooked ECU later i managed to get the rb25det to fire and run on (5 cylinders over fueling)...This wiring was very in depth for a fitter engineer i had to learn so much from simple relaying, to measuing the ground pulse of the injectors...(to much to even start explaining)
Please note that the guy that sells the megasquirt is a very good, knowledgable guy and he has helped with countless amounts of emails..Free repairs ect...
Onto the next issue, Now the truck fired but had some very strange things happening, when the fuel pump was turned "ON" the engine would die...After stripping the whole fuel system i believe this is because of a blocked return line (This is why my diesel kept giving me problems, not a leaky pump seal as i expected, so in other words i removed diesel engine due to a blocked tank breather giving me shit...)..Now back to the RB engine this blocked fuel line over ran the "fuel pressure regulator" which meant the fuel pressure at the injectors with pump "ON" was at around 80psi+ not the needed 35psi...This over ran my injectors and filled my bores with fuel and nearly hydrolocked the engine.. So removed the fuel and dumped the contaminated new oil and fixed the blocked fuel tank breather..
This is where the next problem has occured... I checked the injectors with the system removed and noticed that all 6 are pulsing at the same time??? this is a tuning error on the megasquirt and is flooding the engine crazy as its injecting all cylinders on both strokes. Trying to sort this at moment.. Megasquirt plugs into your laptop so can monitor entire engine from there and alter everything just need to find out how, so i email megasquirt guy and he tells me what to change.
So i am waiting till tuesday to take all the injectors down to get checked ect...Am going to install a adjustable fuel pressure regulator this week so that will eliminate any problems there and i am lucky enough to have a lathe at my place now so can machine the adapters needed for this (and body lifts).
Here is a couple videos of it running, although sounds like a V8 due to cylinders flooding. the engine does sound very strong and no odd knocks...I also compression tested it after cranking hydrolocked and have 175 psi on 4 and 180 on 2 so thats all good.
http://www.youtube.com/watch?v=ne47zGfZFh0
http://www.youtube.com/watch?v=RwyltFPdEHI
Re: RB25Det Nissan Terrano
Don't worry about the injectors pulsing at the same time, it's called 'batch firing' (or something) and is normal. Sequential injection has to be set up, but isn't needed, it only affects low rpm running, but even then not much. At high rpm the injectors are open nearly constant.....
I'd say if you've got the pressure problem sorted (should be 45psi static on the rb I think), just play with the mixtures a bit, those generic maps are never that close...and double check all the voltages/resistances that are coming from the sensors.
I will say though...that for a few bucks more you coulda brought a link ecu...way better. http://www.torqueperformance.co.nz/engi ... gement.php
edit; just a thought...if the mixtures are set for 35 psi....and yours is the standard 45psi...that may be the issue. Try leaning the mixtures off a bit.
I'd say if you've got the pressure problem sorted (should be 45psi static on the rb I think), just play with the mixtures a bit, those generic maps are never that close...and double check all the voltages/resistances that are coming from the sensors.
I will say though...that for a few bucks more you coulda brought a link ecu...way better. http://www.torqueperformance.co.nz/engi ... gement.php
edit; just a thought...if the mixtures are set for 35 psi....and yours is the standard 45psi...that may be the issue. Try leaning the mixtures off a bit.