anyone ever had injectors go bad on them? what are the symptoms?
I think that EGTs on stock twins get alot higher than anyone realizes. Mine creap up to over 1700F pretty easily. I think that if you're getting high egts its probably a function of timing retard. If you had a bad injector(s), you car would probably idle wierd.Zerosoul said:anyone ever had injectors go bad on them? what are the symptoms?
But have you checked your actual a/f? What does the gauge read if you lower your boost 2 psi?Zerosoul said:what kind of EGT gauge you use? mine is Omori and I hit 760C on top end pull with 91 octan CA gas.
I am trying to find a source for this high EGT reading, but I have replaced everything I could think of, fuel pump, fuel regulator, filter, coolant, even put in a fuel pressure gauge to monitor my fuel pressure but still get high EGT.
But have you checked your actual a/f? What does the gauge read if you lower your boost 2 psi?
What plugs are you using? What heat range? Does it do it with the 6097s?
Supra500: BTW nice car! love that color. is it stock Baltic blue?SUPRA500 said:@zerosoul,
what is your setup/mods on your car? 6speed or automatic?
thanx for the info. I guess you would be running different A/F ratio then stock twin then? if not, what ratios did you dial in? I am about to have my HKS AFR dyno tuned also..carcnoid said:My EGT's were getting up there after I first put in my AFR. I just added some fuel in the top end and it seems to have taken care of the problem.
what kind of boost gauge are you using? GReddy? yeh all my friends Greddy EGT stops at about 690-700Cmax. I will try to hook up a Greddy EGt after the dyno session and if the problem still exists.Grant said:Jon, mid range a/f DOES matter, probably even more than high end. IME you can lean it out much more around redline before the ECU pulls timing, epecially w/ BPU since you don't hold as much boost to redline. But the high volumetric effeciency (ie torque) the greater the car is prone to detonate.
I think your car was just running lean up top and rich in the middle.
Yeah it really responded like shit before didn't it? Its a shame we didn't race, I'd have pulled on you
Jonas, I too am obviously no expert, but if it really only lowers your EGTs by 10-20C running 14 psi, I'd guess an a/f problem. I'd shoot for the same a/fs as Andi does, low 11s, like 11.2:1. That way your safe to do 6th gear top end pulls
FYI my EGT gauge stopped moving at 670 at 160 mph.