I've done a search everywhere and I can't seem to find this. I know these cars run very rich from the factory, but does anyone know how rich?

Thanks in advance!

 

It runs rich enough to drop the power significantly, reaching something like the 9.X:1 range by the rev limiter.

 

Hi 9.X:1 by redline is what I've also heard from a tech at our local Mitsul. dealer.

 

14.7 A/F when cruising

 

Really? Looks like a tune is in order........I think I'm getting it done when Marky Mark and his funky bunch come back to Tejas for a tuning session.

 

Thanks fellas for the help. I figured anywhere from 12.1-15.1, because it has some issues that my old drag used to.

 

Stock for my car was around 10.0:1 at 6500. With the AMS Downpipe/exhaust and SAFC2 and 19.5lb boost, I stay around 11:0 for 'safe' opentrack settings with 93 octane. For street, I would try to stay around that, no more than 11.5:1 for open tracking. The most I have run was 100 octane and 20.5lb boost, I was at 12.3:1, but that was at the race track.

Typically around town, i try to stay at 16lbs boost, and 10.0:1 to match stock. However, depending on how cold it gets, I may add a touch more fuel. I wouldn't recommend going bast 11.8:1 for 'everyday' driving at WOT. Just my opinion though.

 

I am looking for the same info. So your car was 10:1 @ 6500rpm WOT. Do you know whether it was richer or leaner before 6500rpm if you went to WOT @ 2500rpm?

 

At 2500, I was around 11:0, best I could remember, then from about 3200 all the way up to @4800 I was @+1 or +2, From 5200 on , I would start subtracting fuel. Now, that was with the stock down pipe, but with the AMS exhaust from the cat back. With the colder weather, I would be easy on subtracting fuel, the air is so good when it is cold, it is really amazing. I can vary as much as 7 points depending on the temp, meaning, tuned at 80 and the retuned at 50 and again at 10 degrees I hate cold weather, but the boost loves it.

 

damn, that's not that rich at all. I thought it would be a lot more.

I'm sure u get some lean spots in between the RPM's.

That's what I heard. It doesn't stay contant when you have mod without ECU tuning.

 

Stock or even with mods it sharply slopes down to 9.0 or so at redline. 2004/2005 won't be quite as bad. It is on'y with tuning does it stay even.

Brian, if you want to get tuned, you better sign up. TurboTrix will be here in 1 week for the second time....

 

Trying to run 87 octane around town??? I think you are probably being a lot more conservative than you need to be.

Also, seems a little backward to run leaner/higher boost on the road course than you do on the street if you are running 93 on the track as well. I'd go low boost/richer on the track and high boost/leaner on the street.