13b+t help turning diesle up?

[hiace007]

have just put a top mount on my 13b+t is only boosting 5psi and only geting up to 400C on the egt its running a aeroplane turbo with no wastegate have bean told to turn the diesle up with push the boost up cannont find any info on which screw to turn any help be good

[geckoadventure]

3B+T??

try this link

http://forum.ih8mud.com/diesel-tech-24-volts-systems/256621-13b-t-fuel-adjustment-power-increase-answered.html

However I think you should be taking it to a diesel tuning shop there is more to it than just turning up the fuel. Need an aneroid boost detector also and you should modify the pump to have higher rail lift to put more fuel in.

and lastly the wastegate should be setup. What turbo are you using sounds like it is too big and cannot spin up. A CT26 from a SUPRA 7M or 13B-T would have been best.

What boost do you want to see or expecting - did you do any maths or just bolt the turbo on and a quick prayer (hope to god this works?) and test it out.

Sure you do not have any air leaks causing you to loose boost?

Hope you tested out your cooling before hand also and its running coolant etc?

Exhaust size is 2.5" correct or did you go big and make it 3" for turbo's its big enough for girls it is not *_*.

[geckoadventure]

try this link

http://forum.ih8mud.com/diesel-tech-24-volts-systems/256621-13b-t-fuel-adjustment-power-increase-answered.html

However I think you should be taking it to a diesel tuning shop there is more to it than just turning up the fuel. Need an aneroid boost detector also and you should modify the pump to have higher rail lift to put more fuel in.

and lastly the wastegate should be setup. What turbo are you using sounds like it is too big and cannot spin up. A CT26 from a SUPRA 7M or 13B-T would have been best.

What boost do you want to see or expecting - did you do any maths or just bolt the turbo on and a quick prayer (hope to god this works?) and test it out.

Would expect 7+psi at 2000rpm and max torque also. Mine gets 15+ at 2000rpm and a lot of torque *_* .

Sure you do not have any air leaks causing you to loose boost?

Hope you tested out your cooling before hand also and its running coolant etc?

Exhaust size is 2.5" correct or did you go big and make it 3" for turbo's its big enough for girls it is not *_*.

[hiace007]

its a rayjay of a aeroplane running stainles 3" myn is a na 13b so so it is a different pump than that one you linked its in a 1981 fj40 in third it creeps to 7 psi have bean told needs more diesle to spin it faster as its only delivering the na amount goes really well for 5psi no leaks all gud piping and the big clamps and a bighorn topmount

[geckoadventure]

I would have though you would post more than that. which aeroplane engine did it come from and which one of the 27+ turbo's they sell is it?

a 3B is pushing 3431cc and max's out around 3400rpm .

What ever turbo you have bought needs to be able to push this along. I suspect being a petrol it came from it probably will not move until 2500rpm since most people drive a 3B 1600-2500rpm this is the range the turbo needs to opearte inunless you want tlow down tirque and you slip in a 12B from a 2L-T which will have it max'd out around 2500 rpm.

Im guessing the engine size it came from is >4liters else the turbo would be humming

[snotgoblin]

Most aircraft turbos should work at fairly low revs...

The Bell 47 Helicopter (think M*A*S*H) runs a turbo. Redline of the engine is about 2500 rpm, and the capacity is 435ci - 7.1 litres.

In theory it should be OK on a 3.4 litre diesel - but then an aircraft engine sits at a fairly constant throttle setting, so without a wastegate I imagine the lag will be fairly significant?

[Tarmac]

Wldnt no wastegate = no boost bleeding off or 'unlimited boost'. If this is the case and its creeping up to 7psi in 3rd then isnt the exh housing too large for the engine app? eg the exhaust gases from the eng cannot produce enough flow to spin the exhaust side of the turb fast enough.. to spin the inlet side fast enough to "make boost" within the eng rpm range

[hiace007]

probly yes to all of the above it kicks in algood got no rev gauge in the fj but yea all i have bean told its delivering the na amount and if give more diesle will give it more boost

[tgaguy1]

Most aircraft turbos should work at fairly low revs...

The Bell 47 Helicopter (think M*A*S*H) runs a turbo. Redline of the engine is about 2500 rpm, and the capacity is 435ci - 7.1 litres.

In theory it should be OK on a 3.4 litre diesel - but then an aircraft engine sits at a fairly constant throttle setting, so without a wastegate I imagine the lag will be fairly significant?

And the turbo as fitted to the Lycoming TVO435 was fitted to compensated for loss of engine performance at higher altitudes. Not increasing engine performance at sea level like the installation in your truck. Two very different environments. All aircraft turbos I have worked with would be way to big for automotive use. I would recommend replacing the turbo with one of similar specs as a CT-26. That will suit the Characteristics of you 3B.

[hiace007]

it still kicks in early and makes it go way beter than na all i wont to know is how to give it more diesle

[wsr4x4]

#### just crank that fuel up she will be mean. Diesels that have no waste gate are designed so the Turbo is sized to the motor and then the whole shebang is just limited by the fuel. True it is more suited to stationary motors these days as a waste gate allows you to run a smaller exhaust housing and have better response but it will still work sweet many older trucks run this system as did the early pajero turbos .

[hiace007]

yea m8 she hums on on 5 so how do i turn it up this is wat im asking

[klompy]

Mate seems like its one of those things no one here knows how to do ,try google or your local diesel repair shop,good luck

[crazyclark31]

On the top of the pump there is a threaded bolt with a small(6mm?)hex head with a slot through it and a nut that tightens against the pump. Loosen the nut and wind the thread out. Only do an 1/8th of a turn at a time. If you can't work it out take it to your loacl garge they'll know.
Just watch you don't crank it up to much. The 3bs are known to blow heads with more than 7-9 psi. Also to much fuel and it'll melt pistons.

[hiace007]

closest i can see to that is a 10mm hex nut the is to the right of the 4 diesle lines on the topish left side but the locking nut is part of the pump so if i undo the hex head with the slot i cant tighten it

[crazyclark31]

is it a rotory or in line pump?
Will take a pic tomorrow and post it up

[hiace007]

inline ive bean told hass a arm that moves on the top and four diesle lines thanks mate

[crazyclark31]

sorry but i've only got a rotary pump so pic will no help. Best bet is to take it to a mechanic somewere and get them to show you were it is

[hiace007]

thank you to all have bean showd it turned it out about 2.5 turns now its boosting 12psi and geting to about 650c and flying anyone know how much heat the 3bs can take

[geckoadventure]

You need to intercool it - since it is a NA with turbo bolted on I would recommend no more than 10PSI but most of all toss an intercooler into it.

[hiace007]

it is intercoold. anyone know if a 60 series pto winch will fit a fj40 flatdeck