Update on my 2002 Z06
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Joined: Sep 2005
Posts: 185
Update on my 2002 Z06
Hi all....just thought I would put up a few numbers here.
I am still trying to sell my 97......anyway, I had put dynatech headers, high flo cats and x pipe on that one along with borla exhaust....(which has since been put on the Z06..didn't think the weight difference was gonna matter much at my skill level...and I loved the sound) and from baseline and after dyno runs....it came up to a 20 RWHP gain. On my 2002 Z06 that I got last week (less than 3000 miles on her.....well since I had it on the track on Saturday and Sunday it has like 3200 now) I put on LG Motorsports Pro long tube headers, no cats, and x-pipe...because the dynatechs really weren't a direct fit....one guy told they wouldn't fit...and the dynatech guy said they would if you "rigged it".....and so since I didn't want anything "rigged" on my new baby...I decided I would try the LG headers and see what difference there would be in power gains. I didn't have a baseline run done...in the sake of time....I figured I could get some stock 2002 Z06 rwhp numbers from somwhere (anyone have a baseline run from a 2002 Z06??) ....but my shop had 2001 numbers....which taking in consideration the 20hp difference (385 vs 405) between those years.....it came to about a 22 to 25 rwhp gain...so if you take in consideration not having cats on my 02....I would say that for the money....and pretty much the same gains...20ish rwhp...the dynatechs are just as good....this is based purely on the power gains I've seen first hand....not on quality, etc.
Oh...my 02 Z06 ran 365 rwhp. Needless to say I had a blast my first time on the track with her over the weekend! I will post some pics here soon. At some point I want to get a video of me on the straight on the track here in Spokane, WA.....so everyone can hear exactly what my setup would sound like on their cars. I got several compliments over the weekend on how she sounds.
Kevin
I am still trying to sell my 97......anyway, I had put dynatech headers, high flo cats and x pipe on that one along with borla exhaust....(which has since been put on the Z06..didn't think the weight difference was gonna matter much at my skill level...and I loved the sound) and from baseline and after dyno runs....it came up to a 20 RWHP gain. On my 2002 Z06 that I got last week (less than 3000 miles on her.....well since I had it on the track on Saturday and Sunday it has like 3200 now) I put on LG Motorsports Pro long tube headers, no cats, and x-pipe...because the dynatechs really weren't a direct fit....one guy told they wouldn't fit...and the dynatech guy said they would if you "rigged it".....and so since I didn't want anything "rigged" on my new baby...I decided I would try the LG headers and see what difference there would be in power gains. I didn't have a baseline run done...in the sake of time....I figured I could get some stock 2002 Z06 rwhp numbers from somwhere (anyone have a baseline run from a 2002 Z06??) ....but my shop had 2001 numbers....which taking in consideration the 20hp difference (385 vs 405) between those years.....it came to about a 22 to 25 rwhp gain...so if you take in consideration not having cats on my 02....I would say that for the money....and pretty much the same gains...20ish rwhp...the dynatechs are just as good....this is based purely on the power gains I've seen first hand....not on quality, etc.
Oh...my 02 Z06 ran 365 rwhp. Needless to say I had a blast my first time on the track with her over the weekend! I will post some pics here soon. At some point I want to get a video of me on the straight on the track here in Spokane, WA.....so everyone can hear exactly what my setup would sound like on their cars. I got several compliments over the weekend on how she sounds.
Kevin
?/?.....then what is SAE corrected? Sorry....not real familiar with that lingo. 
Senior Member
Joined: Sep 2005
Posts: 903
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RE: Update on my 2002 Z06
Kevin,
The correction type determines how raw dyno-generated data is modified for ambient temperature and many other factors, with its goal being to allow direct comparisons of horsepower figures regardless of time of day, temperature, etc. A great technical explaination can be found here:
http://www.land-and-sea.com/dyno-tec...horsepower.htm
When your car is dyno-tested, you are given a sheet that not only shows the horsepower vs engine speed graph, but also lists the correction type and dyno manufacturer. Due to differences in the way STD and SAE programs "correct", STD tends to generate higher numbers. I asked the dyno shop owner for my "raw data" and loaded it into a free program that allows you to pick the correction type. That way, I was able to generate SAE numbers to compare to the STD numbers that came with the graph sheet.
By the way, the first number is rear wheel HP and the second, separated by a slash, is rear wheel torque.
Dave
The correction type determines how raw dyno-generated data is modified for ambient temperature and many other factors, with its goal being to allow direct comparisons of horsepower figures regardless of time of day, temperature, etc. A great technical explaination can be found here:
http://www.land-and-sea.com/dyno-tec...horsepower.htm
When your car is dyno-tested, you are given a sheet that not only shows the horsepower vs engine speed graph, but also lists the correction type and dyno manufacturer. Due to differences in the way STD and SAE programs "correct", STD tends to generate higher numbers. I asked the dyno shop owner for my "raw data" and loaded it into a free program that allows you to pick the correction type. That way, I was able to generate SAE numbers to compare to the STD numbers that came with the graph sheet.
By the way, the first number is rear wheel HP and the second, separated by a slash, is rear wheel torque.
Dave
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