finally got decent time in 1/4 mile run.
Originally Posted by Evil_1
Hey Trevor, are you the guy I met at Rockfalls this past weekend? I'm the guy with the yellow Evo that was running some Sh**y time. Do you notice a big difference from stock clutch compare to the Exedy? I think I may end up replacing my clutch.
Yeah that was me. I remember you but unfortunately will probably butcher your name but I will try not to. Is it Fong? I really didn't ever drag my stock clutch but overall the shifts are much easier and it definitely doesn't slip when launching. I did notice it pulls a little quicker and seems to spool better too mostly due to the flywheel but I don't have any numbers. Overall, I am very happy with it and would highly recommend one. I would also recommend you do that boost leak we talked about, replace the clutch, put in some race gas, turn up the boost to 23-24psi (unless you have head studs/gaskets, then I would go 28 or so), drop the tire pressure to at least 25F/28R to start with, launch between 5 - 6K and go to http://www.tristateraceway.com/schedule.html where there is a good starting line. Rock Falls = Slippery Rock
Tristate is a great track, all concrete and has quite a few national records from what I was told by the owner. It is one of less than a handful of full concrete tracks in the world. With the colder temps in the next few months, I am hoping to drop another tenth or two. If you want, you can PM me if you have any other questions or plan on going sometime.
Originally Posted by EVOONYOASS
I have seen them off as much as .4 compared to a wideband which means your combustion chamber temps are actually higher than they should be. Installing a exhaust gas temp(EGT) probe and guage will monitor the gases and tell you if you're running lean.
EDIT: I reread what I wrote and it doesn't make sense the way I meant it.
I meant if the a/f meter was basing its signal off of the stock O2 it would cause the a/f meter to give a false reading. The signal from the O2 would be wrong and the a/f meter would be reading up to .4 off from the actual reading.
If the a/f meter he is using is basing its reading off of the stock O2 sensor than it could be off. Read his post below.
I thought he was talking about using a device that showed his air/fuel ratio similar to what a wideband would show? Did I understand his post wrong?
If it was taking a reading off of the stock O2 sensor it will show false reading on the a/f meter. A meter showing an a/f ration of 11.5 can actually be reading closer to 11.9 or 12 and if he's on pump gas, thats a bad thing. If what he was using showed the O2 reading (.92) than I misunderstood him. His post reads like he was talking about a a/f moniter not a O2 reading.
I meant if the a/f meter was basing its signal off of the stock O2 it would cause the a/f meter to give a false reading. The signal from the O2 would be wrong and the a/f meter would be reading up to .4 off from the actual reading.
Originally Posted by DragNRacing
Do you really intend to say .04 as in .94 vs .98?
Originally Posted by jshin80
was running 20 +-0.5psi all the way to redline w/ octane booster(104).
somehow, octane booster helped me more than i thought.
it actually lowered my a/f ratio about 0.1 - 0.2 (after oct booster: 12.3 - 11.xx 4000 to redline) i was hitting almost 13 without octane booster between 4000-5000
.
here's my time.
somehow, octane booster helped me more than i thought.
it actually lowered my a/f ratio about 0.1 - 0.2 (after oct booster: 12.3 - 11.xx 4000 to redline) i was hitting almost 13 without octane booster between 4000-5000
.here's my time.
If it was taking a reading off of the stock O2 sensor it will show false reading on the a/f meter. A meter showing an a/f ration of 11.5 can actually be reading closer to 11.9 or 12 and if he's on pump gas, thats a bad thing. If what he was using showed the O2 reading (.92) than I misunderstood him. His post reads like he was talking about a a/f moniter not a O2 reading.
Last edited by EVOONYOASS; Aug 31, 2005 at 08:09 PM.
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