Cutting open the hot air intake??

[V SICKS]

A couple of years ago there was a bunch of talk about splitting the hot air intake open and cleaning most everything out and welding it back together.. I have my engine apart now and starting rebuild and wonder about the intake.. Also where is the best deal on a set of forged pistons??? Thanks.. mike

 

[BRAD_PADGETT]

How fast do you want to go? What is your signature listing your mods? Do you have a scan tool? Knock gauge? Do you know how to use these tools? I am only pointing this because out that our cars are different and without using a scan tool and knock gauge you will throw alot of money out the window. Chime in everybody. Brad

 

[turbo6x2]

Why would you hog out the intake? Seriously just gasket match the intake to your intake gasket, smooth out the openings and if you want elimate the egr. I had one of those v-3 intakes that was hogged out and the car ran like crap. Didn't help a darn thing, it actually created issues, car wouldn't idle over 4000 rpm and it leaned out cylinders. Those chambers have a purpose. The runners in our intake were actually there cause originally GM was going to inject water as a cooler, then used intercoolers instead. Just what I know from experience.

 

[V SICKS]

Thanks..

THANKS for the input.. as far as mods the whole engine is in little small pieces...sent crank and rods to the machine shop couple of days ago.. am going to bore it from .030 to .040 my self.. probably will have balanced.. how about the best deal for the buck on forged pistons??? Will just clean up the intake... THANKS... mike

 

[cool 84 2]

I've ported and gutted my intake. I got the most gain from porting. I had material welded to the outside of the runners so I could port the runners as much as I needed. I used a felpro 1200 intake gasket and ported to that size all the way up. You will break through every runner if you take it to this size without the welding.

Later on I cut open the top. I cut out the center dividing wall, zip tubes, and upper EGR floor. The intake is now a big open chamber. I used a 3/8" thick aluminum plate on the top instead of welding the stock top back on. This gave me more turbo clearance for the bigger 87 style turbo.

I already had a fairly modded motor at this point and the gains were noticable. Porting produced gains all over the rpm range while the gutting seemed to make it pull harder at higher rpms and boost. Low end was not compromised at all. My plugs all look identical, more than I can say for the stock configuration. Going by plugs, air distribution is not a problem. I have a total of $100 and a lot of time invested in this intake. The way the car runs on pump gas is evidence enough for me that the intake works fine. Porting alone will probably get you to where you want.

 

[Mr.Buick]

J&S manifold on E-bay

There is a J&S modified intake system up for auction on E-bay right now. This is the same as the V2 system. It flows better than the stock 87 manifold. Do a search on the J&S manifold on Turbobuick to get the information.