Terrible night at the track
__________________
edit- Reread your first post. You really need to fix your needles so you can read where your rpms are.
Last edited by WhitePhoenix99; Sep 29, 2009 at 10:36 PM.
Trending Topics
Forget the MAF for now, because I'm sure its not hindering you that much. Get your guages straightened out and spin that V8 to 6000RPMs down the track and you should be atleast a full second faster.
In the long run though, your car would definately run better and make a little more power if you put a stock MAF back in and get a tune from someone like PCMforless.com or MadTuner.com
The Best V8 Stories One Small Block at Time
dont be switching them back and forth because the computer will need time to learn the maf, its gonna run poorly once you first put it in but it will get better,
but first like everyone else said get the important stuff fixed first like the guages
Last edited by bowtie_racer; Sep 30, 2009 at 05:21 PM.
When my car was stock I shifted at redline, but when I put headers on I sort of figured they would shift my powerband up a tad, so I started shifting around 5900/6000RPMs. Not sure how much difference this made versus shifting at 5750RPMs but the car seemed to pull hard right to 6000.
And also... if I recall correctly, a stock LT1 rotating assembly can handle up 6500RPMs. I wouldn't suggest spinning that high unless you've got an upgraded vavetrain that won't float or break and a cam/heads setup that would demand that many RPMs. But with Long Tube headers, shifting at or close to 6000RPMs wont hurt anything.
Yeah i just went out and looked at them, it shows redline at 5200 RPM.
Hopefully somebody like shbox or one of the other regulars will chime in with some concrete facts.
One thing I'm sure of, is that you can easily spin past 5200RPMs in order to run a faster track time. A properly running LT1 M6 with Long Tubes should easily be able to run mid to high 13's, even with mediocre tires.
Thats what I thought! No cat either, I think its running pretty rich. Well I guess I will get a tach in there and try again, and let you all know what happens. Thanks fo all the advice and comments. Someone let me know what the redline is on a 95 if possible.
Last edited by bowtie_racer; Sep 30, 2009 at 08:51 PM.
Thats what I thought! No cat either, I think its running pretty rich. Well I guess I will get a tach in there and try again, and let you all know what happens. Someone let me know what the redline is on a 95 if possible.[/QUOTE]
You mentioned that the previous owner put in white face guages right? Depending on where he got them from, like if they were $2 ebay brand guages, they may just be incorrectly painted. I've looked on my own car and anywhere I've looked online, a stock LT1 redline is 5700-5800RPMs. Your needles may not be off at all, but the redline printed on the white face of your tach surely is.
Basically when you went to the track you were unintentionally short-shifting, which would definately cause you to run 15-flat all night. Take another trip down there with what you've got and spin it to as close to 6000RPMs as you can. I'll bet anything your time improves quite a bit.
By the way- when I put long tubes on my car, before I got it tuned, my car was probably running pretty rich. I had no cats, I deleted all the emission horseshit, and it smelled like gas when it ran lol. I never plugged into the OBDII port to get any a/f readings, so I'm just basing this on how bad the car smelled when I turned it on lol. However, after I sent my PCM down to Ion from MadTuner.com, the car seemed to run a lot smoother and stopped smelling.

