UrS4boy

Chris takes a stock intake manifold and opens it up and removes the bolt access tubes that restrict air flow in the intake plenum. He then welds a machined plate with OOOO rings over the access hole he created. Then he polishes the h*ll out of the manifold, as shown here:

KRIENG

Have some queation? PLS
How to remove & install Intake Manifold ? (Fixed stud or Old bolt)
Howmuch HP increase ?
I have CNC and interested to mod.

Thank Krab.

Shooter5122

intereseted in doing this to my car. Would like some specifics if possible.

fcarspec

Hi Krab,

The original access holes are plugged with specially machined bolts as when the access runners are removed there are 8 holes that need to be plugged. I've seen where this mod has been done recently by someone else selling it on aufifans marketplace, but they are welding up the holes which elininates the access to the lower row of bolts under the manifold making it a super-bitch to R&R the manifold. I am plugging the holes with a bolt that threads into the lower hole in the manifold(helicoiled for durability) and the upper hole is machined with a taper to fit the counter-sunk bolt head-both are sealed with a non-hardening gasket sealer after the manifold is installed. The "sealing bolts" are machined down to .150" for good flow, the old castings that have been removed are appx. .750-.800". On the inside of the manifold the injector "bumps" are removed and all casting flashing removed and the manifold is then tumbled in a large vibratory polisher to give the inside a satin smooth finish. The throttle body opening is also machined larger to accept a bigger T/Body (i.e. 034's in this cas). I can also finish the manifold to look like a factory cast part instead of polished.

Thanks for your interest!

Chris Myers

KRIENG

Very smart idea.

Big Thank. and I will follow to MOD soon.

How much the felling that HP riseup.
KOB KUN MAK MAK KRAB (Thank you very much)

KRIENG

Look like this?

fcarspec

That's pretty close but the bolt head is counter-sunk so it has a bevelled under-side to seal to a matching recess cut into the top manifold hole.

Chris