Turbo sizes

[stanhayward]

Hey all, just about ready to buy a turbo for my build finally, I was wondering who had experiences with larger turbos. I'm looking at a Precision 66mm turbo but am hesitant at the size. I'd choose the .58 or .68 ar divided housing to try and help responsiveness, but am I looking at a usable power range? Thanks guys!

Also, if you have any other suggestions the turbo needs to be a divided T4 externally wastegated as I already have the manifold.

[Good & Tight]

Hey all, just about ready to buy a turbo for my build finally, I was wondering who had experiences with larger turbos. I'm looking at a Precision 66mm turbo but am hesitant at the size. I'd choose the .58 or .68 ar divided housing to try and help responsiveness, but am I looking at a usable power range? Thanks guys!

Also, if you have any other suggestions the turbo needs to be a divided T4 externally wastegated as I already have the manifold.

Need more info on your set up, what engine, specs, HP goal, use for the car, etc...?
I would guess a M10 for a .68 back housing.

[stanhayward]

It's going to be a 2.8 with high-ish compression, a 280 cam, and a welded head with o-ringed block. Looking for 550whp horsepower, the 66mm precision is good to 700 crank. Car is a no-fucks-given street/occasional drifter.

[sayed ali]

I suggest the Precision SC6262 Billet turbo with T3 and .82 Or since you already have a T4 mani .. you can go with T4 and .68

Check this

http://realstreetperformance.com/sto...rnal-1339.html

[stanhayward]

Okay so we're thinking a 66 is too big then? I'll look into the 58-62 range, thanks guys!