Thread: Real world egt temps. Post your temps

Whats this degF rubbish

Rough figures from mine (pre-turbo EGT):
Ex stage1 NA engine with T25G turbo and no I/C
Idle < 160C
100k cruise 400-500C (hard to get steady state and zero wind)
Can hit 750C under sustained climb while towing, but I usually back off at ~700C
Max boost is 15psi.

Not sure what you mean by "upgrade" to KLR manifold. Whats wrong with the factory manifold you have now?

Steve

My temps pretty much the same as Steve's on all accounts. Only difference is that my turbo is Gt2260 with WTA intercooler, max 30psi boost.
Cheers,
Andrew.

Originally Posted by taylorslandy

My temps pretty much the same as Steve's on all accounts. Only difference is that my turbo is Gt2260 with WTA intercooler, max 30psi boost.
Cheers,
Andrew.

And you're running LOTS more fuel than I am (and getting lots more power).
Is the max fuel screw on yours still an in-cab decoration?

Steve

Originally Posted by haydz

Hey guys just a thread for a bit of a comparison between the different setups in real world use.

I'll start it off

Car
80s rrc
4bd1t truck spec
Factory ihi turbo running over the rocker cover
Lt95
31 inch tyres
Egt probe is pre turbo

Idle I see 400.f
100km flat ground 800.f
100 up the biggest hill I can find wot increases gradually and won't go past 1300.f

Do these figures sound about right? I am wanting to upgrade to the klr manifold and possibly even intercooler.

good numbers, you have about 1/3 of a turn on the fuel screw up your sleeve before you hit danger numbers, the intercooler helps more than the manifold for EGT the manifold helps with boost wind on (a little)

fit the intercooler then adjust the pump fuel screw till you hit the same 1300 again and you wont kill your engine from overfuelling or leave it as is if you re happy with the current performance.

Originally Posted by steveG

And you're running LOTS more fuel than I am (and getting lots more power).
Is the max fuel screw on yours still an in-cab decoration?

Steve

Yep, fuel screw now rattles around in the ashtray

idle is around 150, 100kmh 350/400. A sustained hill 500/550. I hit 650 once towing up a long hill.

22psi max. Plazmaman W2A and a 3" high flow exhaust. About a third of a turn on the screw.

I assume everyone is measuring pre turbo? Mine is after turbo so lower, I'm generally seeing 100C less than those mentioned here which fits with the post turbo measurement.

depending on your drop across the turbo at boost 100 is about right depending on how far down the pipe you go...

to get a rough idea, take it for a drive, warm it up and then let it idle till your post egt temps first stabalise, measure the manifold temp with a IR thermometer and then measure at the temp probe, that will give you a rough comparison thats accurate up until the waste gate opens.