Offroad-Express

hey guys got a 3l with the 2lt turb on it wha should the egts idealy be?

Not sure but the max reading will vary depending on whether your egt probe is pre-turbo (in exhaust manifold) or post turbo (in dump pipe) so it'll be easier to get an answer if you specify where yours is.

650ish is recommended as a max for most trucks.

I can't get my 14psi 3.1 to go above 550 on a long hill climb at full throttle.

Mattman wrote:650ish is recommended as a max for most trucks.

I can't get my 14psi 3.1 to go above 550 on a long hill climb at full throttle.

out of interest where is your probe?

matt is yours in the dump pipe or the manni? I was tinking mani for mine

Putting it in the dump pipe is easier as you can remove it and drill/tap it off the truck but in the manifold will give much more accurate readings.

you can put a sensor in the egr port of the manifold. its just has to be long enough and it can be tricky finding one with long enough probe.

temp wise i would max it no more than 700c pre turbo. i'm running around 600 odd with a boot load of smoke down low (no boost comp).

Mines in the manifold in the egr port which is slightly off to the side so I suspect the true reading would be slightly higher.

I had a standard one in the egr port and then got a long one and it reads quite a bit hotter now 50-100 deg ish

cheers dudes !

Is yours intercooled 1kz_surf? That will make a big difference to your egt readings. My 1kz surf is factory intercooled and the Auber probe is middle of the manifold before the turbo. I get average of 360ºC at 100kmh (not towing) with a 3" dump and turbo. I have also disconnected the egr and pcv is sent to a catch can.

The max I can get it to under full load is 784ºC (which from what i have read here and elsewhere is higher than you want to see regularly) but I plan to fit a water/meth injection system to automatically come on at say 650 ish.

nah mines a 3l hilux not a 1kz haha sorry for the confusion with the name hahahaa

Oh ya all good...the point's still valid about intercooling though...will drop your temps nicely

intercooling is highly recommended.

tweake wrote:intercooling is highly recommended.

Mainly because the turbo is undersized for the motor so heats up the air coming out which leads to high EGT's. Write up on an ozzie forum on a water to air intercooler install with some details on intercooler's effect:http://www.outerlimits4x4.com/viewtopic.php?f=83&t=234623

zukmeista wrote:

tweake wrote:intercooling is highly recommended.

Mainly because the turbo is undersized for the motor so heats up the air coming out which leads to high EGT's. Write up on an ozzie forum on a water to air intercooler install with some details on intercooler's effect:http://www.outerlimits4x4.com/viewtopic.php?f=83&t=234623

yes/no.
technically its undersized but surf guys consider it oversized on the 2.4. seams like a low rpm cam with biggish turbo for higher rpm.
but chuck it on a 2.8 which has atmo/higher rpm cams its a bit different.
its also a very old tech turbo. carbon seal turbo's should be left to draw through carby turbo engines.