Thread: "TUNERS HELP" egt's too high

so it looks like the reason my turbo failed was too much heat. my egt's have been around 1400 deg full throttle at the manifold. this is kinda high. my afr is right around 11.7. to me it seems like the egt's shouldn't be that high for that afr, my turbo builder thinks that the turbine wheel might be a bit restrictive. im upgrading to a stage 5 wheel from a 3 stage with the new setup. has anyone had problems with egt's being too high?? if so what did you find out that helped fix the problem?

Originally Posted by turbocooker

so it looks like the reason my turbo failed was too much heat. my egt's have been around 1400 deg full throttle at the manifold. this is kinda high. my afr is right around 11.7. to me it seems like the egt's shouldn't be that high for that afr, my turbo builder thinks that the turbine wheel might be a bit restrictive. im upgrading to a stage 5 wheel from a 3 stage with the new setup. has anyone had problems with egt's being too high?? if so what did you find out that helped fix the problem?

I have no idea what you are running, but I had a 49lb/min 50trim comp wheel with stage 3 exhaust wheel in .63 ar housing and would get up to just under 1600 frequently with no probs. 1400 really isn't much, that would not cause your turbo to die.

Originally Posted by Scrymerr

Originally Posted by turbocooker

so it looks like the reason my turbo failed was too much heat. my egt's have been around 1400 deg full throttle at the manifold. this is kinda high. my afr is right around 11.7. to me it seems like the egt's shouldn't be that high for that afr, my turbo builder thinks that the turbine wheel might be a bit restrictive. im upgrading to a stage 5 wheel from a 3 stage with the new setup. has anyone had problems with egt's being too high?? if so what did you find out that helped fix the problem?

I have no idea what you are running, but I had a 49lb/min 50trim comp wheel with stage 3 exhaust wheel in .63 ar housing and would get up to just under 1600 frequently with no probs. 1400 really isn't much, that would not cause your turbo to die.

+1

sounds like it could just not be getting enough oil if it died. unless you're running the bullseye v-trim. i hear bad things about those.

Yea, the engine wil melt down wayyy before the turbo.

Oil feed problems are the number one cause of turbo failure

simple, run a -4 line straight from the oil filter housing, either t off the pressure sender OR take out the upper hex plug and pull oil from there.

no kinks or contacs with the exhaust parts, that line is steel on the outside but teflon on the inside and can melt and plug up or get restricted

actually it was the bullseye v-trim. we took apart the turbo and you could see how the heat travelled on the shaft from the exhaust side. it cooked the oil ring which explains all the smoke. right now im running a -3 oil feed off the head. should i upgrade to a -4? doesn't seem like oiling was the problem, you could clearly see how the heat was coming from the exhaust side of the turbo. also i was planning on re-using the bullseye housing for my new setup, is this a bad idea? im going with a t04e 62-1, innovative BB center section and a stage 5 turbine wheel. should i not use the bullseye housing? im supposed to pick up the turbo next week so any info would be greatly appriciated.