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CTS-V dyno, stock Vs wait4me tune + 2.55 pulley

19874 Views 52 Replies 32 Participants Last post by  6speeder
Had Chris and Hoyt at Dyno Edge install a smaller pulley on my CTS-V. With a mail order tune this is what we got. First run is stock, last is with the pulley and tune, no other changes.


I'm pleased. :headbang:
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Holy SHIT!!! Sweet!
Wow, nice!!
holy shit! Nice.
Thats sweet
Geez that's impressive
always wanted a V!!! damit
Nice numbers out of a nice car! Got any pics?

There is an older gentleman here in Las Cruces with a new V with an STS twin turbo kit compounding the factory supercharger. The car is sex on wheels and sounds amazing! He said it laid down 700 horses with a mild tune.
Nice Wayne. Sleeper baby!
Nice Wayne. Sleeper baby!
Yeah, it sounds and drives like stock... till you mat it! :beer:
Nice numbers! Is 445rwhp average for stock? I know they rate them at 550hp I believe. I know the z's dyno stock right about 445rwhp also, with a 505hp rating. Unless your numbers are uncorrected.
Nice numbers! Is 445rwhp average for stock? I know they rate them at 550hp I believe. I know the z's dyno stock right about 445rwhp also, with a 505hp rating. Unless your numbers are uncorrected.
That's a pretty average number for a SAE auto tranny CTS-V. I've seen them throw down 430 heatsoaked, and up to 460, but 440-445 SAE RWHP is average.

In truth, they tend to run better than the dyno rwhp numbers would have you believe. Mine dyno'd 371 rwhp uncorrected stock but ran a 12.7 @ 112 on a 7,100' DA day. If you run the HP/weight calculators for 4400 pounds including driver, it shouldn't go that fast. Adding 70+ rwhp to that, she should be a solid 12.0 car here now. :eek:ldman:
Wow, impressive Wayne
What an awesome car I love supercharged V8 sedans.

Wish we could of raced when your car was still stock...
That's a pretty average number for a SAE auto tranny CTS-V. I've seen them throw down 430 heatsoaked, and up to 460, but 440-445 SAE RWHP is average.

In truth, they tend to run better than the dyno rwhp numbers would have you believe. Mine dyno'd 371 rwhp uncorrected stock but ran a 12.7 @ 112 on a 7,100' DA day. If you run the HP/weight calculators for 4400 pounds including driver, it shouldn't go that fast. Adding 70+ rwhp to that, she should be a solid 12.0 car here now. :eek:ldman:
Did not realize it was an auto. Bone stock auto on street tires [email protected] up here and 4400 pounds. That is kick ass!!
Thanks. She really pulls now with that new low end torque. :beer:
Nice numbers out of a nice car! Got any pics?

There is an older gentleman here in Las Cruces with a new V with an STS twin turbo kit compounding the factory supercharger. The car is sex on wheels and sounds amazing! He said it laid down 700 horses with a mild tune.
Is his name Tom?
To be honest I don't know his name. I've talked to him a few times but never got his name. The car is silver. I'll be sure to get his name and maybe some pics next time I run into him.

6speeder, 12.0 in Alb, that is just nasty from that car. I love the small cowl on the hood of the V.
Nice... Thats an impressive jump in numbers. Post some pics of the car
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