*Official* L99 Dyno Thread
 

Can someone make this a sticky?

Seems like with all the L99 talk theres alot of variation on what they put down, I have seen from 295-330rwhp

So post up your results and some basic info on your car (mileage, break in procedure ect ect )


my results are posted, stock vs tuned

Thread stickied

Stock , 600 miles, pulled 319rwhp back to back twice, then removed ECM fuses for 5 minutes to reset LTFT`s (Long Term Fuel Trims), immediatley ran it again and picked up close to 8 rwhp. This is that last pull.

http://i53.photobucket.com/albums/g7...Camaropics.jpg

everything thing I have read concludes the real restriction is way before the mufflers and that an axle back adds nothing but sound

Here is my stock vs. tune dyno. As you can see in the south Florida heat and humidity my car pulled about 332rwhp/345FT# stock.

With the tune it looks to be about 345rwhp/357FT#. Considering the weather I'm happy, I'd like to get it back on the dyno once it cools down. I have just over 5,200 miles on the car. I was at the drag strip with 300 miles...what break in?

http://i635.photobucket.com/albums/u...DYNO081109.jpg

Here's mine stock and with a tune (ECM). 500 miles driven semi-hard.

http://www.camaro5.com/forums/attach...2&d=1247158644

http://www.camaro5.com/forums/attach...3&d=1247158644

http://www.camaro5.com/forums/attach...4&d=1247158644

First one is stock, and the second is stock with only tune. about 85 degrees in north jersey. gained around 27 hp and 45 tq


http://img17.imageshack.us/img17/1302/dsc0465q.jpg

94 - 99 degrees and very high humidity (also drove 130 miles to get there).
Stock and tuned (no mods).

http://i403.photobucket.com/albums/p.../dynosheet.jpg

Another Slow L99
 

Car has 3000 miles first 1500 took it kind of easy. Changed the oil and since then I have been driving it like i stole it!

Your Dyno is run is SAE so temp and humidity is already taken into account. Randy's sheet is STD so not really good for comparison among all the SAE runs. Mine is also STD posted in another thread so I'll wait and get SAE to post in here...

Now your 130 miles and hot motor would lower the numbers a tad

STD, SAE :iono:

Are my numbers actually lower or what?

That one is UGLY!

Yes it is sad but true.

I also posted my 0-60 times around 6.8 seconds. I just came from the dealer and they where unable to do anything but open a case. The tech told me there was only one other case like mine and it was closed and marked as normal. He also told me that there where no PIs I think is what he called them. Which means they are not activally working on the issue that he could tell. Long story short While some are saying sit and wait GM will make good. I think everyone that has an underperforming L99 needs to get in and have a case open to put a fire under GM to resolve the issue.