The guys at the performance shop where I have done the Dyno pulls (stock and after tune) said my car is a factory freak. I haven't seen many put down 440+RWHP and close to 410RWTQ on stock tune with just an air filter change. At the same time, I've seen people make more power from an e85 tune than was my before/after differential.
Every dyno reads different……the true test is at the track. My GT went from 12.5(stock) to 11.18(after mods and dyno) which I’m extremely happy with. The car will be going back on the same dyno in March after after more mods. Hope to be running 10.8’s/10.9’s for the new season.
Beautiful car and great times! What was your 60' on the 11.18 run? I've been looking at springs/dampeners but haven't pulled the trigger.
60’ was a 1.77, that’s launching at idle. I bracket race, so launching at idle gives us a very repeatable consistent 60’.
Just dyno discrepancy. If I'm looking at the right post, the +20/+30 post had a slower 1/4 mile and trap speed than the one you quoted. The faster time + higher trap speed is the more accurate indicator of power.
To be fair, my slower ET was on stock tune. Next weekend will be my first run at the track on the e85 tune. 11.32 @ 123 was stock tune where the car put down 445/409 on the Dyno. I agree with a prior post though in that a Dyno is just an estimation and vary Dyno to Dyno. True results are seen at the track.
Was that on E85?
22 Mach 1 6MT
Kooks 1 7/8" headers with green cats, 3" connections to Corsa catback
Hydrocarbon trap removed along with the tapered insert that held it
Reische Performance 170 degree thermostat
Flex tune, made a best of 470hp on 93 octone (same dyno, previous day)
They tune at an E80 mix to mimic pump "E85".