V8 Buggy issues

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petefj40
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V8 Buggy issues

Post by petefj40 »

The 1UZ has been really good to me since i had the dizzies sealed up with speedy sleeves. (first picture below) The cap was vented but not pressurized.
A year later they have failed and leak letting in water and moisture. I guess I was lucky they lasted as long as they did.

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This is how they look currently.

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Not the best pictures really. But you can see how the inside of the dizzies are. It's missing farting now.. :cry:
So I've brought some new caps and rotors. The same sleeves are going to be fitted but this time they will be glued on with stronger glue. And the caps won't just be vented but pressurized.

Some people don't bother with speedy sleeves. They just try to pressurize the cap. But there are big holes at the back of the dizzy. So while the motor is running it might work. But as soon as the motor stops the water/mud runs in (if you're stuck in a deep mud hole). But my setup, while the air tank is full there will be a small amount of air pressurizing the dizzy caps keeping everything out.. And even when the air runs out there will be minimal space for the muck to get in.
With any luck I'll get more than a year out it.
But I'm seriously thinking about moving up to the 32-valve quad-camshaft V8 Lexus next year. No dizzies. It's a big jump forward. But for now I'll make do with what I got. :D
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Re: V8 Buggy issues

Post by NJV6 »

petefj40 wrote:But I'm seriously thinking about moving up to the 32-valve quad-camshaft V8 Lexus next year. No dizzies. It's a big jump forward. But for now I'll make do with what I got. :D


I think you'll find you already have a 32-valve quad-camshaft V8 Lexus!!!

And the strongest lexus engine made is the one you have....

Good idea with the sleeves though, I'll pass that on to a mate that has water issues!
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Re: V8 Buggy issues

Post by petefj40 »

NJV6 wrote:
petefj40 wrote:But I'm seriously thinking about moving up to the 32-valve quad-camshaft V8 Lexus next year. No dizzies. It's a big jump forward. But for now I'll make do with what I got. :D


I think you'll find you already have a 32-valve quad-camshaft V8 Lexus!!!

And the strongest lexus engine made is the one you have....

Good idea with the sleeves though, I'll pass that on to a mate that has water issues!


duh! :oops:

I was referring to the later model Lexus.
Runs coil packs and variable value timing. It's a 4.7 (2UZ) or something. Has a crap load more torque too.
Excuse my ignorance. :roll:
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Re: V8 Buggy issues

Post by smurf182 »

I'm sure it would be possible to convert to a coil on plug style system and ditch the distributors.

Don't the later model VVTi 1UZs have this sort of setup?
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Re: V8 Buggy issues

Post by petefj40 »

smurf182 wrote:I'm sure it would be possible to convert to a coil on plug style system and ditch the distributors.

Don't the later model VVTi 1UZs have this sort of setup?


Rather than convert a dizzy to coil pack, as there maybe other issues to solve with the ECU? Would be easier to just stay stock. Sell one and replace it with a later one and ECU. The later UZ's bolt straight up to what I've got. And i like the idea of more torque. I'd just put the coin from one motor towards a later one.

A motor in stock form would be more reliable and that's where it's at.
I've heard some people running what I have with an early Link ECU. And comparing it to the stock setup. Why would you bother. I mean they spent millions in researching it to get it where it is, why change it.
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Re: V8 Buggy issues

Post by Cleary »

...bit of a thread jack sorry, but i remember trialling in an LJ50 which had a can of CRC in the glovebox that was plumbed thru to the dizzy. The idea was that when it started coughing in deep water, teh navvy whipped open the glovebox and gave her a squirt and she would keep going...

Somehow I think that pressurizing the dizzy all the time might be a better solution.
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Re: V8 Buggy issues

Post by Pedro »

petefj40 wrote:
smurf182 wrote:I'm sure it would be possible to convert to a coil on plug style system and ditch the distributors.

Don't the later model VVTi 1UZs have this sort of setup?


Rather than convert a dizzy to coil pack, as there maybe other issues to solve with the ECU? Would be easier to just stay stock. Sell one and replace it with a later one and ECU. The later UZ's bolt straight up to what I've got. And i like the idea of more torque. I'd just put the coin from one motor towards a later one.

A motor in stock form would be more reliable and that's where it's at.
I've heard some people running what I have with an early Link ECU. And comparing it to the stock setup. Why would you bother. I mean they spent millions in researching it to get it where it is, why change it.



just put a megasquirt onto a lexus and it is a completely different animal to drive, cruise at 50 k, give it a boot full drop it a few gears and the back end lights up, if you running stock ECU you missing a whole lot of power,
the 4.7 i think has cast iron block ?? so would be heavier as well i think.

Pedro
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Re: V8 Buggy issues

Post by petefj40 »

Pedro wrote:
petefj40 wrote:
smurf182 wrote:I'm sure it would be possible to convert to a coil on plug style system and ditch the distributors.

Don't the later model VVTi 1UZs have this sort of setup?


Rather than convert a dizzy to coil pack, as there maybe other issues to solve with the ECU? Would be easier to just stay stock. Sell one and replace it with a later one and ECU. The later UZ's bolt straight up to what I've got. And i like the idea of more torque. I'd just put the coin from one motor towards a later one.

A motor in stock form would be more reliable and that's where it's at.
I've heard some people running what I have with an early Link ECU. And comparing it to the stock setup. Why would you bother. I mean they spent millions in researching it to get it where it is, why change it.



just put a megasquirt onto a lexus and it is a completely different animal to drive, cruise at 50 k, give it a boot full drop it a few gears and the back end lights up, if you running stock ECU you missing a whole lot of power,
the 4.7 i think has cast iron block ?? so would be heavier as well i think.

Pedro


True.
I meant the 4.3L 3UZ. That's alloy. (300hp)
You might get more go going away from stock but from what I've heard, staying stock will give you more reliability?
When I re-powered my fj40 with the LS1 I'm glad i stayed with the stock ECU. Like I say. Lots more re-search went into the stock form than modified. :wink:
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Re: V8 Buggy issues

Post by Jerry »

Waterproofing thread

http://www.offroadexpress.co.nz/Forums/ ... ng#p177100

More power ... drop an eaton supercharger on it .... will give you the more torque you are after .... they come up cheap on tm occasionally
http://www.trademe.co.nz/motors/car-par ... 157665.htm

http://www.offroadexpress.co.nz/video/a ... rger-whine

have driven factory ... aftermarket will give you more power, links work well

have a look at lextreme.com as well

where do you get the sleeves from?
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Pedro
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Re: V8 Buggy issues

Post by Pedro »

Jerry wrote:
where do you get the sleeves from?


seal imports or pacific seals in the hutt, needto know the shaft dia to get the right one.

pedro
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Re: V8 Buggy issues

Post by Pedro »

petefj40 wrote:You might get more go going away from stock but from what I've heard, staying stock will give you more reliability?
When I re-powered my fj40 with the LS1 I'm glad i stayed with the stock ECU. Like I say. Lots more re-search went into the stock form than modified. :wink:


i ran the megasquirt in my trials truck for 4-5 yrs, never missed a beat apart from when the belt shredded and ripped the crank sensor off the motor.
set up right and wired right they will be as reliable as stock, toyota may have spent a fortune but they would be looking for economy, smooth and lifetime out of the tune, we looking for power!!!!
link, altech,megasquirt all have good points and bad, but performance wise you will struggle to get a stock ecu to go better.

pedro
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Re: V8 Buggy issues

Post by smurf182 »

petefj40 wrote:You might get more go going away from stock but from what I've heard, staying stock will give you more reliability?
When I re-powered my fj40 with the LS1 I'm glad i stayed with the stock ECU. Like I say. Lots more re-search went into the stock form than modified. :wink:


Pete, with respect to that line of thinking, why do you own so many tricked out modified cars?

The answer is of course, that the OE product is a compromise of performance, emissions, cost and all the rest, not only designed by engineers but accountants as well.

As awesome as the 1UZ was in it's day, the dual distributor system is really a bit naff don't you think?
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Re: V8 Buggy issues

Post by oldyella »

I reacon your right about going to a larger engine to get more grunt.

An aftermarket computer will give you more grunt since factory tunes need to meet emission standards. Thats why chips in the factory ecu give you more grunt, they usually wont meet emissions standards anymore and in some countarys its illegal.
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Re: V8 Buggy issues

Post by petefj40 »

Pedro wrote:
petefj40 wrote:You might get more go going away from stock but from what I've heard, staying stock will give you more reliability?
When I re-powered my fj40 with the LS1 I'm glad i stayed with the stock ECU. Like I say. Lots more re-search went into the stock form than modified. :wink:


i ran the megasquirt in my trials truck for 4-5 yrs, never missed a beat apart from when the belt shredded and ripped the crank sensor off the motor.
set up right and wired right they will be as reliable as stock, toyota may have spent a fortune but they would be looking for economy, smooth and lifetime out of the tune, we looking for power!!!!
link, altech,megasquirt all have good points and bad, but performance wise you will struggle to get a stock ecu to go better.

pedro


I get what you're saying, "looking for economy, smooth and lifetime out of the tune, we looking for power". But Pedro. You don't have to spend up large and go with a mega-thingy and another ECU to get more power.
When I say they have spent lots on research i mean the stock ECU is made for the engine. When I re-powered the FJ40 with the LS1, no way in the world was i going to through a Link at it. :shock: Sure they have improved these days. But at the time they were crap (utter shit actually). And in my opinion, they still are, so you can't beat the stock, "Delphi ECU". The sampling and the ability that the Delphi has over the Link is huge. All you have to do is unlock it and re-fuel map it. Link? Pffffft.
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Re: V8 Buggy issues

Post by Pedro »

petefj40 wrote:
Pedro wrote:
petefj40 wrote:You might get more go going away from stock but from what I've heard, staying stock will give you more reliability?
When I re-powered my fj40 with the LS1 I'm glad i stayed with the stock ECU. Like I say. Lots more re-search went into the stock form than modified. :wink:


i ran the megasquirt in my trials truck for 4-5 yrs, never missed a beat apart from when the belt shredded and ripped the crank sensor off the motor.
set up right and wired right they will be as reliable as stock, toyota may have spent a fortune but they would be looking for economy, smooth and lifetime out of the tune, we looking for power!!!!
link, altech,megasquirt all have good points and bad, but performance wise you will struggle to get a stock ecu to go better.

pedro


I get what you're saying, "looking for economy, smooth and lifetime out of the tune, we looking for power". But Pedro. You don't have to spend up large and go with a mega-thingy and another ECU to get more power.
When I say they have spent lots on research i mean the stock ECU is made for the engine. When I re-powered the FJ40 with the LS1, no way in the world was i going to through a Link at it. :shock: Sure they have improved these days. But at the time they were crap (utter shit actually). And in my opinion, they still are, so you can't beat the stock, "Delphi ECU". The sampling and the ability that the Delphi has over the Link is huge. All you have to do is unlock it and re-fuel map it. Link? Pffffft.



cost me $700 bux for the megasquirt 5 yrs ago, and now you can get them for about $400 landed in NZ, shite loads cheaper than link :), i hear you on the delphi, but can you do it for the lexus?

Pedro
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Re: V8 Buggy issues

Post by petefj40 »

smurf182 wrote:Pete, with respect to that line of thinking, why do you own so many tricked out modified cars?


So many?
I chipped (re-fuel mapped) the stock Delphi ECU in the FJ40's LS1. It kicked ass..
I re-powered my Holden with a 6L LS2 but stayed with a LS1 Delphi ECU because it was easier to remap and ditched the LS2 fly-by wire for a throttle cable operated Holley intake. It incinerates tires..
I put a power command TFI unit on my Can-Am Rotax 800cc quad bike and had it piped but stayed with the stock ECU. It seriously kicks your ass..

But that's about it. I've ALWAYS stayed with the stock ECU. I've never changed it..

smurf182 wrote:The answer is of course, that the OE product is a compromise of performance, emissions, cost and all the rest, not only designed by engineers but accountants as well.


Keep the ECU, just modify it to suit the application. :wink:


smurf182 wrote:As awesome as the 1UZ was in it's day, the dual distributor system is really a bit naff don't you think?


Yeah, nah.
It's served me well so far. I'm freshening it up to make it last a little longer. But like I said earlier. I'm looking at stepping up to the next model Lexus.
Last edited by petefj40 on Fri Nov 18, 2011 8:04 pm, edited 1 time in total.
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Re: V8 Buggy issues

Post by petefj40 »

Pedro.

I'm sure you'll be able to unlock the ECU and re-fuel map it to suit the application. Like someone mentioned. Throw a supercharger on it and get it re-fuel mapped. You'd have a weapon!!! :twisted:
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Re: V8 Buggy issues

Post by turoa »

petefj40 wrote:Pedro.

I'm sure you'll be able to unlock the ECU and re-fuel map it to suit the application. Like someone mentioned. Throw a supercharger on it and get it re-fuel mapped. You'd have a weapon!!! :twisted:


Na you cant remap the 1uz ecus. There are a couple of chips availible from japan but they are very rare
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Re: V8 Buggy issues

Post by petefj40 »

turoa wrote:
petefj40 wrote:Pedro.

I'm sure you'll be able to unlock the ECU and re-fuel map it to suit the application. Like someone mentioned. Throw a supercharger on it and get it re-fuel mapped. You'd have a weapon!!! :twisted:


Na you cant remap the 1uz ecus. There are a couple of chips availible from japan but they are very rare


Damn. :(

Well after talking to you today 2'sI think I'll flag the 3UZ upgrade and do what you suggested. Coil pack the 1UZ if I don't get more than a season out of the new dizzies. Maybe look for a supercharger for it but try and stay with the stock ECU. But I'm interested to see how long these new dizzy rotors n caps will last this time though. Pressurizing them might make them last a whole lot longer.
This is were it's at right now. Still lots to do..
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Re: V8 Buggy issues

Post by petefj40 »

Well. The new dizzy caps and rotors went in tonight. Turned the key and disappointment. It still had a bad miss. :evil:
I've been told to check the two coils next. But if there's still no joy by the end of tomorrow I'll be pulling the pin on this weekends winch challenge. :cry:
Pretty pissed off spending all that time and money and still the motor isn't running right.
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Re: V8 Buggy issues

Post by NJV6 »

Oh gutted, with my limited experience with 1UZ's, the ignitors often fail and it'll only run on 4 cylinders but as the motor is so smooth you'd think its running on more.
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Re: V8 Buggy issues

Post by SP450andLE »

Also check the leads, even small cracks or wear can cause bad misfires
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Re: V8 Buggy issues

Post by skid »

:( :( :( :( :( :( :( :cry:
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Re: V8 Buggy issues

Post by petefj40 »

Replaced all the plugs. All go again. :D

Got the dizzys pressurized.
This is where the pump is mounted. In and outlet pipes sorted.

Image

Lilo pump in.

Image

Pipes up to the firewall.

Image

Plumbing all done.

Image

Good to go in the deep holes again. :D
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Re: V8 Buggy issues

Post by petefj40 »

Winch motor FAIL. :cry:
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Re: V8 Buggy issues

Post by NJV6 »

Gigglepin time.....
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Re: V8 Buggy issues

Post by Lawrence »

Hahah oh yea got a spare 8k???

How about ditch the lexus and got turbo diesel power!!!!!
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Re: V8 Buggy issues

Post by petefj40 »

NJV6 wrote:Gigglepin time.....


Nah, imagine 2 motors doing this! :shock:
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Re: V8 Buggy issues

Post by petefj40 »

Lawrence wrote:Hahah oh yea got a spare 8k???

How about ditch the lexus and got turbo diesel power!!!!!


That would be the ultimate. Twin turbo V8 diesel. :mrgreen:

But bang for your buck? You can't beat the Lexus. Just needs a supercharger. :wink:
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Re: V8 Buggy issues

Post by meatc »

I can sort you out a twin motor top hat and super easy to run free spool for the 8274. Save power by not running the motors to let rope out, 2 motors equals less load on each motor, less risk of failure.

End of 2012 will have a instant (or next to) stop brake sorted on motors and possibly faster gear sers to.
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