Outer Limits 4x4 Board

Just wanting to know how much boost can you get out of a TD4.2 non intercooled without playing with the injector pump. Its a 99 GU wagon and another thing is what is it standard (boost) from factory.

boost? 80psi with the right turbos

Z()LTAN wrote:boost? 80psi with the right turbos

Share the popcorn and I'll pour you some coke

woodiesGU wrote:Just wanting to know how much boost can you get out of a TD4.2 non intercooled without playing with the injector pump. Its a 99 GU wagon and another thing is what is it standard (boost) from factory.

Boost is useless without fuel. Running 20psi from a stock setup won't do your EGT's any favours, as the intake temps will be hella-hot. Saying that, with a decent tune i think the GU TD42T's can get over 100rwkw - i'm sure someone that owns one will post up their results.

Stock boost would be between 5psi and 8psi.

So running between 10 to 15 psi shouldnt make things to hot or cause damage to the motor.

if u were going to run 15psi mate i would deff fit an intercooler even a front mount or top mount, but your going to have to play with the pump timing and fuel to get some decent power out of it, have u upgraded dump pipe and zorst?

even 10000psi wont make your egts any hotter....

More boost = Lower EGTs
More Fuel = Higher EGTs

rich vs lean determines your Egt reading....

Z()LTAN wrote:

even 10000psi wont make your egts any hotter....

More boost = Lower EGTs
More Fuel = Higher EGTs

rich vs lean determines your Egt reading....

X2 thats true champ

exactly
and if you want the standard slow ass td42 to get up go for a change,spend some dollars and get more fuel into it and more boost then get it properly tuned.. mine is making 190rwkw with 35's.. i havnt got the time to be fu cken around with standard shit.. its all to slow.

So there's no difference in EGT's on a vehicle running charge air temp of say 30C compared to the same vehicle with a charge temp of 130C?

its stuff all on the gauge,, leaner the better.. standard tuneup any place will do for td42 turbo is turn fuel 1/8 to 1/4 of turn on fuel and bump up air to 12 - 15psi.. and even that is barely noticeable..
before i did my motor up i had 3inch zorst, dump pipe, standard turbo and standard fuel pump and i turned fuel 1/3 of turn and ran 20psi boost.. ran very lean.. still to slow though.

THE-Burger-Ring wrote:its stuff all on the gauge,, leaner the better.. standard tuneup any place will do for td42 turbo is turn fuel 1/8 to 1/4 of turn on fuel and bump up air to 12 - 15psi.. and even that is barely noticeable..
before i did my motor up i had 3inch zorst, dump pipe, standard turbo and standard fuel pump and i turned fuel 1/3 of turn and ran 20psi boost.. ran very lean.. still to slow though.

This is a bit off topic, but have you put any air temp sensors into your new setup? Some of the data from the Laminova threads is pretty interesting re: charge temps.

no i havnt but i have been meaning to for a long time but i dontknow what type of air sensor to put in or where i can get hold of them.. local stores around home dont sell anything like it nor heard of it.. thats VDO and SPECO brands. i recon it will be very interesting. i want to set up a few sonsors.

Ben's truck (one of the Laminova guinea pigs) has one or two from memory - maybe give Andy a call (dieseltec) and see what they've used.

Ok guys thanks for the info I'll get the 3" pipe and intercooler done than take it from there.
Does any one know of a good Diesel tuner in Sydney?

THE-Burger-Ring wrote:its stuff all on the gauge,, leaner the better.. standard tuneup any place will do for td42 turbo is turn fuel 1/8 to 1/4 of turn on fuel and bump up air to 12 - 15psi.. and even that is barely noticeable..
before i did my motor up i had 3inch zorst, dump pipe, standard turbo and standard fuel pump and i turned fuel 1/3 of turn and ran 20psi boost.. ran very lean.. still to slow though.

Your saying that difference between a bog stock TD42 and one with a 3" exhaust, more fuel and boost is braely noticable? Don't think so mate, it's like night and day - it may not be like 150rwkw + but there definitely is a big improvement.

yeah look maybe i am a bit of a rev head, but maximum tune from standard setup or even with the3inch zorst dump front mount intercooler, 15psi and fuel turned up is certainly good enough for some people.. i myself cant bebotherd waiting half an hour to get to 100km/hour then backwards in gears on most hills.. the setup i have now suits me how i want it.. yes i have spent the dollars but i am happy with it and there is no hill i cant do in 5th gear. and in the bush doesnt matter what gear i choose the bastard will pull and pull.

anyway his question has been answered. getting offtopic again !! lol

woodiesGU wrote:Ok guys thanks for the info I'll get the 3" pipe and intercooler done than take it from there.
Does any one know of a good Diesel tuner in Sydney?

Are you going to get pre and post mod dyno readouts? If so, make sure you post up the results for other peoples future reference.

Are you going to look at fitting a pyro? If so, it might also pay to get a bung welded in your dump while doing the exhaust upgrade.