Turbo BS Thread

Tried the search bar but wasn't finding my answer. With Darton Sleeves, BC Rods, Cp pistons how much boost pressure can I run? Have the pistons,rods,cometics,arp studs already. 64/68 t4 turbonetics

 

All of it. Try it and report back!

 

I'd like 30psi e85+meth but expensive build to break right away. Just wondering how much boost pressure others have gotten up to.

 

What manifold are you running?

 

I have seen some around 30psi, but those engines had custom aluminum intake manifolds.

 

For that matter, I have been reluctant to push past 18 psi on my OEM plastic manifold.

 

Are those known to break apart?

 

Due to the ACIS flap only being held by two small screws into a plastic shaft, coupled with what I had heard a lot of from other Japanese branded cars with plastic manifolds, I just wanted to error on the cautious side. I have never had it pressure tested.

 

On 10:1 or did you drop the comp?

 

10:1 and big bore to 96.5mm for the Darton Sleeves.

 

Those are some pretty high compression ratios you'd be approaching. I think the HG gonna be your weakness up there. Assuming you don't have like O rings done? 20psi is probably more realistic. Did you do anything to the heads?

 

Did you fab those yourself or they a mass production set?

 

I've got Cometic gaskets made for my 96.5mm pistons. I wasn't sure if you could o rings these motors with the darton sleeves installed, has anyone done it? So 20 psi is realistic with the plastic manifold. I have an extra one we could pressure test sometime at a buddies shop lol. I talked to a guy in New Zealand last year that was willing to make custom aluminum manifolds for $1500.

 

I'm the 3rd owner of this setup with some changes to it. The pipes I've been told were made by Powerfab performance in Texas.

 

Do it and YEEEEESSSSS.

 

My old friend Alex's handy work.

 

So yes you can oring?

 

I meant to do the pressure test, and there are a couple handfuls of people that would alo take the manifold.

Yes you can do the o-ring upgrade. Simply a matter of machining.

 

Yes you can oring darton sleeves.