white531

Had brenspeed install a stage 3, 500 flywheel hp,corvette killer on my 07 gt.Numbers seem low.376.3 rwhp and 360 lbs.torque.Dyno was done in tulsa.Sent the file and dyno sheet to them and they say all is well.I trust them but this seems awful low.What numbers do most of you have.We dynoed three other cars and all made more power.1 roush,1 kenney bell,and 1 whipple.Life has been tough these past few days.I was hoping for at least 430 rwhp.

foolio2k4

do you have a full exhaust system. There was a vid where they put in a long tube header and made 50 hp with FI. Good gains can be seen with a better flowing exhaust.

06 Gt on 20s

I just had a supershaker put in my O6 gt and made 430rwp w/ only other mod being headers and steeda exhaust

BruceH

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white531

Don't know how to post pictures.Had to fax the dyno sheet to brenspeed along with the datalog sheet.My exhaust is cat delete,with violator pypes cat back system.Manual tranny.Ran the car up to 6500 rpm.9.5 lbs boost,18 degrees total timing,a/f 11.1 wot

drbobvs

Your specs look right on but I can't explain the numbers unless it was on a Mustang Dyno instead of a Dyno Jet. (or the car was run in 3rd instead of 4th.) The only numbers that really matter though are at the track. I too would like to see the sheet. Scan it as a .pdf file and post it as an attachment

HaneyMotorsport.Com

The tune set up looks pretty good i.e. timing and fuel. It could be leaned out a little. Was your car heat soaked / ran it shortly after getting to the dyno shop? What were the weather conditions?

Casey

graygt07

i have an auto and with the stage 3 i made 420hp and 405tq. It was dyno'd at brenspeed so that may make alittle difference.