View Full Version : Car is running Lean Retune?
93LT1355
05-22-2006, 04:03 AM
Hi Alvin, this is Heath Coverdale. You did a reburn on my chip when I went to the XE 224/230 cam over the winter. I finally got it on the dyno and it appears to be running lean. Below i'm going to post the dyno charts and will send you them in the mail with the chip if it needs to be reburned. thanks.
http://memimage.cardomain.net/member_images/2/web/782000-782999/782548_75_full.jpg
http://memimage.cardomain.net/member_images/2/web/782000-782999/782548_76_full.jpg
Let me know what you can do
pcmforless
05-22-2006, 04:12 AM
Hey Heath,
Thats actually pretty close to ideal but a touch on the rich side actually. I can clean it up if you ship it back to me. Your probally looking at around 4rwhp gain by cleaning up the AFR a touch.
Don't worry about the numbers as dyno-dynamics = the suck put it on a dynojet and turn it to 6200rpm and you should see anywhere between 300rwhp low and 330 high (depending on stall and gear)
93LT1355
05-22-2006, 04:15 AM
the car actually would not turn any more rpm than that. it would start to stall out like it was hitting a rev limiter. the limiter on my MSD appears to be working correctly so I thought that spike in the A/F was causing it to miss out. It should richen out at the top end not lean out right?
and i'm not worried about the numbers at all. he gave me a conversion to dyno jet and it put it at about 320 hp
pcmforless
05-22-2006, 04:17 AM
The leanest the car got was a 12.9. Lean doesn't start until 13.3+
Sounds like you may have some opti woes of it refused to pull any further than that.
93LT1355
05-23-2006, 03:21 AM
I'm not trying to be a pain but I would like to post up the other runs just to be sure. there may be not problem with them at all either. the run i posted before was my best run. Thanks
http://memimage.cardomain.net/member_images/2/web/782000-782999/782548_77_full.jpg
http://memimage.cardomain.net/member_images/2/web/782000-782999/782548_78_full.jpg
pcmforless
05-23-2006, 03:25 AM
Hello, that tune looks prefect. That second sheet is spot on.> the other two are a touch fat but still very nice. The car is no where near being lean.
93LT1355
05-23-2006, 03:43 AM
cool thanks. I'm going to look into my opti after i put my new converter in.
93LT1355
05-27-2006, 10:59 PM
i'm trying to track down why my car won't go past 6k rpm. There wouldn't be a chance that the computer chip accidently had the limiter set at 6k would there?
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