EdgeminSH

Hey gotta turbo selection question I didnt find anything in the search so if this is asked alot dont get mad.

I am going to be boosting my 98 prelude h22a4. (i know all about the weak ringlands and sleeves)

I bought a t04e .57 .63 turbo for my lude and i am planning on running 7 psi (for now). Will the to4e since it makes more CFM than a smaller turbo make more engine internal wear?

d16forlife

I think psi. is psi. no matter what turbo is making it.There shouldnt be a difference.The bigger exhaust on that will just make the turbo more efficient at high RPMs.A smaller turbo say a .48 would stop boosting sooner than that .63.That .63 should make boost till redline on that engine.

shortyz

wrong. 7psi at 200 cfm aint 7psi at 1000 cfm..

CFM is the big number.

much like a 6" pipe with 10psi and a 1/8" pipe with 10psi. more volume in the 6"

Reddy

I think it will be fine. As for more wear I don't think so. The larger turbo usually produces less heat than a smaller one. We did an SHO, upgraded from a grand national turbo to a TO4B 1.19 turbine, running 16psi non intercooled and it doesn't detonate like the intercooled GN turbo. Non Intercooled 9psi, 347whp. The point is, I don't think you have anything to worry about

d16forlife

Yes I know shorty.I was getting at the fact that the psi is still the same.Like whitey sail it shouldnt couse more stress couse the engine is bigger there for needing more CFM to produce the set psi.

turbocivic17m

a T4 is not to big. Actually for an H22 its about right, especially with the trim specs on the turbo. And the Dr. is right. 7 pounds with a rhb5 is different than 7 pounds with a t88. Think of a squirt gun and a water hose, they may both be putting out 7 pounds worth of pressure, but which is putting out more water? hmmmmmmmmm...........

EdgeminSH

its a hybrid Sorry i forgot to mention that

turbocivic17m

It was just my $.o2. You can put a hybrid on a h22 or even a t3 if you wanted to, but a smaller t4 would match that motor perfectly in my opinion. I tend to lean towards bigger turbo's though, so my statements are slightly bias.