what temp do you tune your EGT to

[Slow Poopra 7MGTE]

just wondering what not to go above as far as egt's for the supra and what not to go under for running pig rich, like a nice little ball park... anyone? and if u could explain why. my mods are in the sig if u wanna know what i am running and tuning

 

[mkIIIman089]

IIRC EGTs go up if you are rich or lean and cool down at a good combination. I'm not 100% on that but thats what I remember reading for some reason.

However, do you not trust your wideband? I would tune with that pretty much solely since tuning EGRs is kind of like an oldschool replacement for the then rediculously expensive WB kits.

 

[Slow Poopra 7MGTE]

need money so i was thinkign about trading my friend for his egt set up, and 100 bucks.

by the way someone has to know something

 

[lagged]

yeah i know something, you dont tune by EGT.

that said, i was running around 1550max which SHOULD have been safe, but my failing fuel pump still caused me to detonate and blow a HG.

EGTs should be used as a WARNING that you are at the meltdown level, you dont tune by it.

 

[becauseican]

850 C is about the max you want to go, which is about 1400-1500 F.

 

[Slow Poopra 7MGTE]

plenty of people tune by egt, and thank you bic for answering the question

 

[lagged]

plenty of people tune by egt, and thank you bic for answering the question

by EGT alone? in conjunction with a wideband, sure.

 

[MK3Brent]

Ballers on a budget tune by EGT alone...

 

[antman]

they won't be ballin for long. sorry man.. there is no way to tune on egt alone. its not possible to determine exact fuel ratio by egt.

 

[MK3Brent]

I'm even sure the latency of those EGT gauges aren't real time. Where as WB sensors give you "real time" exhaust gas wave-length... maybe .5 second delay.

 

[Charlie97L]

EGTs are such a PITA to install... you have to take the turbo off, and the manifold off, and tap it, and everthing. blah. just get a wideband, save the egt for your rebuild.

 

[dav_dman]

still new to 4 strokes, but I"ll be tuning my supra same as i do those.. a/f first, timing or boost changes raising temps until i max out at 1400F... 1450 max on 93 octane as far as i am concerned. I dont see you needing it unless you're gonna go big hp, like 500 and up. Had egt's on the 2 strokes and will not bother on the supra, but i won't be going more than 14psi boost either.

 

[williamb82]

i have my egt probe right on the #6 runner and never seen it go higher then just over 1500deg f. if it ever hits 1600(which is the max on the gauge btw) ill shut down imediatly. i really only look at it if making long pulls anyhow like on the interstate or a long bridge. usually short bursts around town it reacts a lil too slow. id stick with the wideband myself if i were you.