401 Twin turbo dyno

Getting a baseline before I really start tuning. First pull was on 12.5 psi, 640whp on mustang dyno. Second pull was on a 18.5psi run with crap air fuel ratio, only 674whp. Last pull was with leaner tune with abit less boost, 17.5psi. Made 690whp corrected on mustang dyno. Running about 10.0 to 1 air fuel, maybe in the 9's air fuel. Dyno doesnt load motor like the street/track so it showed richer here. Car has gone 9.8's at 140mph on 14psi. All pump gas 93 octane only.

Category:

Autos & Vehicles

Tags:

• 401
• twin
• turbo
• dyno

[JMoore4291]

damn, i was thinking about getting a borg warner s480 for my iroc, im lookin to run mid 9's, any suggestions?

[orr89rocz]

@JMoore4291 depends on the motor but guys using S480 type turbos have hit 8's in lighter cars with 347-383 motors so it wouldnt be a bad choice of turbo

[LetMrAL1]

My eldest brother had a 1988 IROC Z28 in burgundy with a 5.7 but damn it was NOTHING like this. Are you able to lock the front wheels without an rubbing and what modifications did you have to do since 1982=1992 Camaro did not have very big front fender wells?. And what transmission are you running?

[orr89rocz]

@LetMrAL1 just a stock size tire up front basically. 255 tires so I can pretty much go lock to lock without hitting anything. It is lowered alot so it may rub a touch at full lock if on a hill or hit a slight bump while turning

[orr89rocz]

@orr89rocz and its a TH400 trans, full manual valve body.

[ZIroc28]

beautiful car. how hard was it to twin turbo it?

what kind of rims are those? what size?

[orr89rocz]

@ZIroc28 It took some time and lots of work but it really wasnt too difficult to do. I had some difficulty here and there but got it figured out. Still working some bugs out tho, so its not done yet. Rims are C6 vette wheels competition gray, 19x10 rear, 18x8.5 front

[JMoore4291]

@orr89rocz i have a 350 bored .030 over now (355) iwas looking for some AFR heads, i have a victor junior intake and a 4500 stall TC, got have a ford 9 inch rear end but only 1 problem, it fits a truck not my car lol, know of anyone who can cut it for me? have a roller cam (not sure what size, me and my dad are buildin it hes the one who knows all that non sense) but i might just scratch this whole idea cuz i kinda want an LS motor, LS7 i think is the 427 one... what do you think? (with a s480)

[Yearone2]

I commented on your other video of you at prp and i said mine looks just like yours, i thought from the video your car was flat black and obviously its not. lol my bad. But i gotta say, I'm jealous!! Your car is so nice and i'm sure you put a lot of time and money into it but i think it would be worth it. If i could do that i def would as long as i knew my camaro would turn out like yours.

[ZIroc28]

alright cool. nice car