408 w/ AFR 225's 99 Vette ,M6 ,3.90 gears 408ci Iron block 11.4-1 compression AFR 225 heads milled to 66cc. 244/248 Cam 90mm LSX intake 42lb injectors Kook 1 7/8 header, 3" X-pipe with Cats Borla cat back. Car idles at 900rpm. Made 1 dyno pull with 100 miles on the setup to check the street tune.Will finish it when there is over 1k miles on it . Uncorrected HP was 580. |
0.85 correction factor??? Are you sure? SAE? Stout #'s though. Impressive. |
Nice numbers :nod: Difference between corrected and uncorrected is 75hp? How cold was it in the dyno room? :eek2: |
Don, Those numbers look good!! Let us know what it makes when it's totally tuned. Thanks |
Originally Posted by 1fastWS6 0.85 correction factor??? Are you sure? SAE? Stout #'s though. Impressive. |
Originally Posted by Chris@AP-Engineering Don, Those numbers look good!! Let us know what it makes when it's totally tuned. Thanks |
Originally Posted by Slowhawk Our dyno gets real screwy in the cold weather.It was 25 degree's outside and maybe 45degree's in the room.The dyno alway's over corrects in the cold. |
Nice numbers!!!!! I'm dying for a 408 right now :( |
Originally Posted by Slowhawk Chris,The motor is incredable to drive.Throttle response is plain awesome and the motor is smooth as hell (thanks APE).We should have it on the dyno in a couple of weeks to finish tuning it.I'm expecting to bring the midrange up alot. You are WELCOME!! I will keep an eye out for the final tune results. 408's are the most fun to drive, great power band on them!! We should have your other 408 done here very shortly. Thanks |
Those #'s are pretty stout considering your a/f.. Hurry and put some miles on that puppy so you can get her fully tuned. |
Originally Posted by VINCE Those #'s are pretty stout considering your a/f.. Hurry and put some miles on that puppy so you can get her fully tuned. Chris,good to hear on the motor.We can't wait to pump 14lbs on Turbo into it :devil: |
Originally Posted by Slowhawk The car is actually the same as your's. Fixed roof,red but it has Mullit wheels and ghost flames :) We picked a fairly tame Cam so I'm not expecting the huge #'s.I figure 530hp and 490tq when it's done. :) Chris,good to hear on the motor.We can't wait to pump 14lbs on Turbo into it :devil: |
Originally Posted by VINCE Any pics of this monster??? I didn't take any when I had the car.I will when it comes back for the final tuning :D |
Originally Posted by Slowhawk The car is actually the same as your's. Fixed roof,red but it has Mullit wheels and ghost flames :) We picked a fairly tame Cam so I'm not expecting the huge #'s.I figure 530hp and 490tq when it's done. :) Chris,good to hear on the motor.We can't wait to pump 14lbs on Turbo into it :devil: Don, what are Mullit wheels?? Did you mean Mallet? If they are Mullit wheels then they must be from back in the day when you were cruzing around listening to Iron Maiden or something :) |
Mullet,thats funny :D |
Originally Posted by JS Mullet,thats funny :D |
Those are some stout numbers :thumb:. Just makes me want a 408 even more. Hopefully sooner than later :) |
Just kiddin Don ;) Now get back to figuring out the right cam change for my car :D |
these were un touched afr's? i saw they were milled, didn't see anything about being ported |
Originally Posted by kickassT/A these were un touched afr's? i saw they were milled, didn't see anything about being ported |
| All times are GMT -5. The time now is 10:04 PM. |
© 2026 MH Sub I, LLC dba Internet Brands