Why is there such a big difference in dyno numbers?
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Joined: Feb 2007
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"just as every car is different, so is every dyno. I have seen C6Z06's vary as much as 30rwhp off the show room floor on our dyno. I've also seen cars on our dyno make 60 more rwhp on another dyno (Mustang Dyno to DynoJet). I've seen cars that make 390rwhp run 9.30's and cars with 500rwhp run 14's. Dyno's are good for one thing, to tell you if the changes you made, whether parts, or tune made more power or less" qoute from straightline.
Do you have any details of this car that made 390rwhp and ran 9.30's? What's funny is my STS GT67 set up w/3200 3.73's only made 330rwhp @8psi. car ran 13.1 @105 spinning 400ft and coasting across the finish, wasn't supposed to run faster than 13.9 (convertible) my car runs and the data (injector duty, airflow, etc) says the car should be making 425-450rwhp.
Do you have any details of this car that made 390rwhp and ran 9.30's? What's funny is my STS GT67 set up w/3200 3.73's only made 330rwhp @8psi. car ran 13.1 @105 spinning 400ft and coasting across the finish, wasn't supposed to run faster than 13.9 (convertible) my car runs and the data (injector duty, airflow, etc) says the car should be making 425-450rwhp.
My car when we looked at the data there was a difference of 780rpm between the crankshaft and the driveline. I was reading on the forum somewhere that someone posted they added a 100 shot nitrous, lost 55 hp on the dyno and picked up .8 in the 1/4
