That'd be neat to know, especially what was changed to get to whatever power level the cars are at. Seeing your progression with your car was really neat, especially as you had several dyno runs along the way to document the progression.
Finished up another round of DynoJet runs last Sunday.
My best run was 650.51 rwhp at 4815 rpm and 730.49 rwtq at 4009 rpm. The boost on this run was 22.1 psi. The A/F was just about perfect on this run.
Using a conservative 15% drivetrain loss, these numbers work out to 765.3 hp and 859.4 tq at the flywheel.
My second best run was 609.09 rwhp at 4380 rpm and 733.19 rwtq at 4113 rpm. The boost on this run was 17.5 psi. The A/F ratio was too rich on this run.
The 650.51 rwhp is good enough for me. I am going to try to get the A/F a little better at the 17.5 psi level and then call it quits for now.
Steve
Ok guys, I finally got my dyno sheets uploaded after the recent exhaust work I had done in Nov. ( the sheets blew out the window @ 90mph
Anyway you can see how much of a difference the large exhaust makes on a turbo car. The first sheet is my baseline dyno of which was a Callaway upgraded Wonderbar, no cats, AFPR and boost set a ~12.3lbs or 55" hg. Again the intercoolers get blazing hot after 2 runs.
The next dyno sheet is my current set up with everything the same add a 2 3/4" Power Effects exhaust system. As you can see the boost comes on A LOT faster with the larger exhaust....which explains the fart cans on the import turbo cars. Uncorrected numbers were 450+rwhp/600rwtq on a 70 degree day. I think these are more than accurate of what the car would do moving down the road with air traveling over the intercoolers.
The last sheet is a comparision of boost set at 10lbs or 50"hg compared to ~12.3-5lbs or 55-56"hg. If I close my PE mufflers down the motor feels really choked and I only get around 50-51"hg.
The next step is to do an Extrude Honed Accel TPI base and AZspeed/TPIS runners.
Dyno'd my '87 back in 2001; best run was 312.1 rwhp & 454.1 ftlb rw torque @ 3K rpm (this was with a small exhaust leak I had at the time). Since then I've replaced the exhaust and turbos, added a K&N filter, and made a few other mods ... should go see what the new numbers are
The "Guess the HP/TQ contest" was close... verrry close. Much congratulations to 8388 who guessed the closest!
The car did 341hp and 468 tq to the rear wheels. Not too shabby for a turbo car from the late 80's! The A/F ratio was very rich.. even at peak torque/boost the motor hardly went above 10:1. With a little tweaking I'm sure there's more in there... but it's staying where it's at for the time being.
Dealers:
