with a 76GTQ turbo,

I made 611 rwhp and 700 rwtq on a Mustang Dyno loaded for 3,800 lbs recently.

Boost was 16 psi... Tuned conservatively, with the meth injection nozzle halfway clogged... I didn't notice the ******* thing until two weeks after the retune.

Anyway, that's with Aeromotive rails, 60# injectors, and twin Walbro 340's.

Regardless of boost pressure, your turbo is going to become a problem if you push it any further...

On a V8, I don't see that turbo hitting your goal... Now, a 67/T-70 and you can hit 500 rwhp with the right fuel, probably at the same boost pressure you're at now, too.

 

Mine was a T6 GT47-88 turbo, 867rwhp with 25 psi. Not sure on 16 psi, but you could probably work out the match. 15 psi is double the air, so if I made 350rwhp with my engine then I might have been at 700rwhp with 15-16 psi. Something like that. Your current turbo looks too small, I'd go bigger, gonna, have to see what fits.

 

what turbo would you recommend ? i am redoing my set up with truck manifolds when winter comes and going to place the turbo where the battery is. turbo will need to support 700-800hp.

 

You just wanna make 800rwhp or do you have an ET in mind?

I'd talk to Jose @ Forced Inductions. He knows what he's sold, what's worked, etc. I know 1-2 folks who have run that TC78 or whatever it's called and it's put out some strong numbers.

 

I'll second that, call FI. Also 120mph is a pretty good trap speed for the number really.

 

Heck I think TJ with a TC unit has gone faster in a 5000+lbs truck then most with f-body's...lol

 

I recall a TC78 I think it was, going mid 9's and mid 140's... Local to me.

 

[QUOTE=Pro Stock John;12123461]You just wanna make 800rwhp or do you have an ET in mind?

I'd talk to Jose @ Forced Inductions. He knows what he's sold, what's worked, etc. I know 1-2 folks who have run that TC78 or whatever it's called and it's put out some strong numbers.[/QUOT

i am not very interested in et's, this is just my summer dd, just want it to have a little bit more power.

a tc78 is a t4 or a t6 turbo ?

i can get a pretty good deal on precision turbo's if you guys can point out the one that will work for me the best that would be great. thanks

 

more boost on a different turbo will def make u go from to .. but u need more fuel.

i have 60lb injectors with a hotwire kit on a walbro 255 - my numbers should explain what you should be around lol (mind u my tune isnt very good on timing, so theres a lot left on the table)

good luck with the editing of ur build man!

 

[QUOTE=elias_799;12143443]TC78 is a T4 unit.