High EGTS HELP
 

Hows it going guys i am new to this forum. I have a 1996 cummins 12v. I can not seem to get my EGTs down. if you guys have any suggestions please let me know. just cruising around my egts run around 800-900. if im doing around 85mph they are like at 1100. if i step on it i hit 1600* with no problem. my EGT gauge only goes up to 1600. I really dont like the truck getting that hot. In the future i am doing 150 sticks, airdog 150, 62mm turbo,head studs and thats about it. how do i LOWER these EGTS please help

In my truck i have hx35/40 hybrid turbo, boost elbow 39lbs of boost, 60lb valve springs, 4gsk,#10 fuel plate,KDP removal, AEM dry flow intake, 4 inch exhaust to 8 inch single stack,191 DV.

That is a bit high on egt's
I would remove the 4000 governor springs and go 3000 and see if that helps.
I would start to think your 191 dv are another reason you egt's are high. How about putting in smaller dv's and see if that helps. The big dv and 4000 springs are pumping a lot of fuel.

Yeah , sounds kike over fuel and starving for volumes of air , psi dosent relate to volume just restrictions in tye flow .... you might want to think about a turbo with a larger turbo ...... timing will also help .... what is ur timing set at ?

Turbo and timing would be my suggestion as well. I wouldn't go dialing performance stuff down, not before trying to make the best of them. Some more specialized pump tuning could probably help too.

My timeing is the stock setting i am going to advance it to 16* and see what this does for me.
My friend has the same exact truck with the same things done to it but he has an airdog150 and a different fuel plate witch is a #6. and his truck is a 5 speed. His truck will not go past 1300 EGTS. why would his be so different than mine

do you have the same brand pyrometer? is it installed properly and in the same spot as his?

its because of the timing , the sooner you put fuel in the longer it lingers in the cylinder and the more complete its burned , it will also reduce smoke as well...

okay i will let you know how it goes when i advance the timeing. Another question is i want to do injectors now that is going to make it run even hotter so now how would i keep the EGTs down after doing injectors?

you could have an injector problem so egt's might not be an issue. i would run 5x12's with a hybrid charger.

dvs with stock turbo are becasue the high egts and in the future id go with the 64mm

when you get the timing squared away then worry about the injectors, your putting the cart ahead of the horse my friend.....

if you dont have head studs, your gonna want to do them before you even think about ramping up the timing.... this will add cylinder pressure which WILL LIFT HEAD.... take my word I have one thats leaking currently ... :td:

get studs, then timing up to 18* , then do some adjustments on fuel pressure and return pressure as well, then lets talk about egt's and injectors, your HX35 will support around 400HP .. a lil hot but its really do able,

400hp i wouldnt like my hx35 anywere by that:w2:

its all in the tuning.... it will do it ... have to open up the intake and such but it is safly do-able ........:tu:

As of right now if i put my foot to the floor i burry the EGT gauge in seconds. I am going to advance timeing this weekend to 16* and see what that goes and i will keep you guys updated

your gauge is messed up.

It could be the guage ..... what brand do you have in it ?

you will need to back your star wheel twards the fender and push fuel plate back wards ... tards the fire wall .....

There only a few reasons for high Egt's ....1.) is too much fuel not enough air Volume ( psi is jut a measurment o restriction ) , 2.) Not enough volume of air for your specific tune , 3.) blocked or clogged CAC or interference from something infront of the CAC ...

there are manny ways to solve the flow issue, get a bigger intake set up ( IE. banks twin ram ) , the other is a turbo that can mve enough air to suppot the ammount of fuel your tying to feed the cylinders, this can be done single or twins, just make sure you have done your homework or it will be expencive play toys for the kids ..LOL

Either way an Improperly adjusted AFC will create artificially high EGT isues .... lean and tune and learn to tune :tu:

how could my gauge be messed up? and how could i test it?

U would use a different guage and probe and see if u get the same results ........ also where is ur pyro located ? Pre-turbo or post ? ..... also r u running a aftermarket or stock manifold ?

Please take the time to fill out your sig so we all know what has been done ..... like kdp neutralized

how deep is the probe installed? and what brand gauge is it. has the thermocoupler ever been dropped? has the wires ever been shortened or severely bent? there is no way your engine is getting this hot, you simply do not have the fuel to get you there and besides that you have a larger than stock charger.

pre turbo will read hotter than post turbo brand of gauge can... not always cause you issues. proper installation can give faulty readings.

if your engine is getting that hot that fast and your gauge is maxed out like that often then I would say you would be running into other more serious problems

I would check out the gauge

Yup, I have a 215 w/887 and a HX35W .... i can peg my auto meter pyro out ... with out the plate in ... but only on lock up on a hard pull .... hence the leaking HG... :s:

So that being said ... I think your guage, is obviously a problem ... when your pulling does your coolant get hott real quick ? or quicker than you would expect ?

I cant rember if you said you have or not but ... might wanna blow out the Rad. core and CAC core just for good measure - what you cant see could be the issue :tu:

i have autometer z series gauges. They are good gauges. the probe is pre-turbo as well.

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here is a question for you guys. i want to do ARP head studs. I havent blown my head gasket but its something i just want to do. Do i replace the head gasket and what brand head gasket and do i have get anything milled?

just replace one bolt @ a time if you havent popped a gasket.

I was planning on doing mine ....... and yes do just one bolt at a time and torque in sequence and to ARP spec...... u will need to do this probably 2-3 times in the first 90days .... just to ensure all is harmonious:tu:

so i called autometer and told them about my EGT problem thinking its my gauge. so they gave me a test to do and apparently my gauge is out of calibration so i have to send them my gauge for them to calibrate and check over and make sure there is no problems. I dont know how it could be that off calibration but i guess i will find out. I am also advanceing the timeing today to 16*. hopefully all goes well

Any updates ? :pca1: