475 or 500 hp?

morefuel · Jul 4, 2011

I'm wanting to make about 475 to 500 hp. So far my list is: headstuds, 238/100 injectors, homemade e-fuel with superduty fuel pump, d66 turbo with external wastegates, clutch, 910 valves springs, and possibly mod my idm. Would this do it or what else would I need? Would my stock hpop possibly make that much power and how would it affect my fuel mileage?

buschpoweredstroker · Jul 4, 2011

check out the 7.3 aftermarket page, one the first stickeys might sober ya up a bit... sorry bubba

morefuel · Jul 4, 2011

I hadn't looked at that before. Sorry bout that.

Whytry · Jul 4, 2011

Fuel milage would be descent depending on how u drive. John from cowboy diesel has a d66 and 238/100 I am pretty sure and did 454hp

purpleheart350 · Jul 4, 2011

Do HPOP as well. I have been told the Terminator T500 will hold well.

bad12jr · Jul 5, 2011

Charger will never live with that big of an injector.

davey99ps · Jul 5, 2011

bad12jr said:
Charger will never live with that big of an injector.

Actually, yes it will. It's all in tuning, I ran even bigger hybrids on my stock charger cuz I didn't have my bigger charger at the time an it lasted just fine. To the op, the d66 will work, but I would highly recommend an h2e set-up. This way down the road if you want to go bigger, you can have it modded. With those injectors, h2e, an either a 17 deg hpop or a srp1 an you'll be right around 500hp, and it'll be an awesome All-around set-up.

Talyn · Jul 5, 2011

480 is really really really pushing d66 limits.

better off with h2e or 38r.

ParkerFly · Jul 5, 2011

I think there's been a few people go over 500 with 238s and a D66. Life of the turbo is in the tuning and how you drive it. Without a waste gate backpressures will get out of whack eventually, it's just how often you keep them out of whack. 38r will have similar back pressure issues to the D66 but will stand up to them better. Going with a 38r and not addressing the backpressure issues is just disguising the real problem - that you need a bigger charger, waste gate, better tuning, or all of the above.

morefuel · Jul 5, 2011

ParkerFly said:
I think there's been a few people go over 500 with 238s and a D66. Life of the turbo is in the tuning and how you drive it. Without a waste gate backpressures will get out of whack eventually, it's just how often you keep them out of whack. 38r will have similar back pressure issues to the D66 but will stand up to them better. Going with a 38r and not addressing the backpressure issues is just disguising the real problem - that you need a bigger charger, waste gate, better tuning, or all of the above.

That's the reason I was gonna go with a external wastegate. I figured it would be a little hot and smokey on the hotter tunes but it would run relatively clean and cool on the tow tune or dd.

OBSWIZ · Jul 5, 2011

Hybrids..they can run on a 17* but will run much better with a SRP1. X2 on the D66..get a modded H2e..

CSIPSD · Jul 5, 2011

Talyn said:
480 is really really really pushing d66 limits.

better off with h2e or 38r.

Willy,

Can you please post up what turbos you have run? I am interested to know what you truely know, or if all of what you said is just want you think you read one time at the supermarket in the Vtec mag???:morons:

superduty4x4 · Jul 5, 2011

Talyn said:
480 is really really really pushing d66 limits.

better off with h2e or 38r.

I thought the 38R was the be-all end-all turbo of choice for the OBS crowd Slick Willy. Why on Earth would you recommend a T4/T4i type setup like the H2e? Everybody knows its a waste of time and too expensive to convert to a T4/T4i setup.

Strokersace · Jul 5, 2011

CSIPSD said:
Willy,

Can you please post up what turbos you have run? I am interested to know what you truely know, or if all of what you said is just want you think you read one time at the supermarket in the Vtec mag???:morons:

superduty4x4 said:
I thought the 38R was the be-all end-all turbo of choice for the OBS crowd Slick Willy. Why on Earth would you recommend a T4/T4i type setup like the H2e? Everybody knows its a waste of time and too expensive to convert to a T4/T4i setup.

wned: