Dyno results, header and X pipe install
#1
Burning Brakes
Thread Starter
Dyno results, header and X pipe install
I took the car in yesterday to have my Kooks 1 7/8" headers and catted X pipe installed and have the car tuned. I left the rear NPP exhaust alone. Only other mod is a AFE intake. Impressed w/ the final figures, the car pulls so much harder and smoother.
I am not a math guru so I am sure someone on here can set the record straight for calculating dyno and driveline loss. I always divided the wheel hp or tq by .83% assuming 17% for loss. The shop says they multiply the # by 1.23 since their dyno has parasitic loss in its design. So not sure which way to go. If I take my baseline hp #(382) w/ the CAI installed x 1.23 we get 470 which would make sense for this engine w/ a CAI. Temps were about 95 degrees in the shop.
Anyway here is the dyno sheet, wheel hp jumped 65 and tq 64. That is before we try to calculate figures to the crank. Very happy w/ the results either way. Some on here said one could only pick up 20-30 hp w/ headers and a tune but this shop has a great reputation for tunes and did wonders on my C6 and they said I would get close to 70 on the C7.
I am not a math guru so I am sure someone on here can set the record straight for calculating dyno and driveline loss. I always divided the wheel hp or tq by .83% assuming 17% for loss. The shop says they multiply the # by 1.23 since their dyno has parasitic loss in its design. So not sure which way to go. If I take my baseline hp #(382) w/ the CAI installed x 1.23 we get 470 which would make sense for this engine w/ a CAI. Temps were about 95 degrees in the shop.
Anyway here is the dyno sheet, wheel hp jumped 65 and tq 64. That is before we try to calculate figures to the crank. Very happy w/ the results either way. Some on here said one could only pick up 20-30 hp w/ headers and a tune but this shop has a great reputation for tunes and did wonders on my C6 and they said I would get close to 70 on the C7.
#3
Team Owner
Member Since: Jan 2007
Location: cookeville tennessee
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ttt
Some great number's any way you look at it for the MODS. Plus for a 95 deg day very nice. I did see it but are you a auto or stick car.
#6
Supporting Vendor
Curious the timing and correction factor used. Those numbers are pretty high for a C7 in Az to be honest.
__________________
Cordes Performance Racing aka "CPR"
Owner of AZ's premier LSX/LTX motorsports shop
http://cordesperformanceracing.com/
www.facebook.com/cordesperformanceracing.com
joe@cordesperformanceracing.com
480-359-5914
Cordes Performance Racing aka "CPR"
Owner of AZ's premier LSX/LTX motorsports shop
http://cordesperformanceracing.com/
www.facebook.com/cordesperformanceracing.com
joe@cordesperformanceracing.com
480-359-5914