my 2001 4.2 had a dts intercooler & stage 1 kit fitted 6 years ago with a 21/2 inch exhaust but std dump & was running 94 rwkw 20psi boost & etg's @300 doing 100ks & would only go to 400-450 when pushed hard & towing a 1.5ton camper & up to 500deg on rare occasions but it has just spat an exhaust fan on the turbo f#*$$$
so the turbos been rebuilt put a 21/2 dump pipe on & had it dynoed & now
107 rwkw 16-18 psi boost but the egt's are now at 350-400 doing 100ks & rise 450-500 going up hills no towing
any ideas where to start looking at what to fix/adjust or is this ok
its a heavy tourer with 200,000ks on the clock but i cant get used to seeing such high temps compared to be for
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gu 4.2 egt's
depends on wat sorta tune u want? if ur worried about the egt then get the pump turned down, in doing that u will loose hp of coarse. i wouldn't be too worried as 550 is considered safe i know ppls who go alot higher for short times.
post or pre turbo is the pryo ?
post or pre turbo is the pryo ?
Last edited by money_killer on Wed Jan 20, 2010 5:36 pm, edited 1 time in total.
94 Patrol Petrol 3.0L lift, tyres, winch
90 WT Serria locked diff, Muddies
90 WT Serria locked diff, Muddies
egt
thats fine. im running 12.5 psi thru mine 160hp and pyro sits on 350 at 100kms. thats all dyno tuned
GU ST 4.2TD UTE.
TRAY AND SLIDERS BY KUSTOM KAGES
TRAY AND SLIDERS BY KUSTOM KAGES
Gudday
Sounds like they have tweaked the fuel and dropped the boost a bit when dynoing.
i'd put the boost back to where it was at 20psi - as that'll help cool the egt's (you can also increase the injection advance up to a max of 6' with some know how)
then if its still not where YOU want it to sit, adjust the fuel back a touch.
Its ok where it is (550 max) but if you ever tow those temps will get a lot hotter.
regards
Sounds like they have tweaked the fuel and dropped the boost a bit when dynoing.
i'd put the boost back to where it was at 20psi - as that'll help cool the egt's (you can also increase the injection advance up to a max of 6' with some know how)
then if its still not where YOU want it to sit, adjust the fuel back a touch.
Its ok where it is (550 max) but if you ever tow those temps will get a lot hotter.
regards
GQ with 30 PSI of TD42T.........
money_killer wrote:depends on wat sorta tune u want? if ur worried about the egt then get the pump turned down, in doing that u will loose hp of coarse. i wouldn't be too worried as 550 is considered safe i know ppls who go alot higher for short times.
post or pre turbo is the pryo ?
the probe is about 1-2 inches down the exhaust
Exactly what Garth has said you still have the same fuel delivery for 20 psi.garth wrote:Gudday
Sounds like they have tweaked the fuel and dropped the boost a bit when dynoing.
i'd put the boost back to where it was at 20psi - as that'll help cool the egt's (you can also increase the injection advance up to a max of 6' with some know how)
then if its still not where YOU want it to sit, adjust the fuel back a touch.
Its ok where it is (550 max) but if you ever tow those temps will get a lot hotter.
regards
However i would also consider getting a 3" dump and exhaust as this well help expel the hot exhaust gasses.
Also look at your air intake, and check the intercooler has no oil in it..
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