Ive seen the pizza box)) intakes on here but was trying to think of how to open the intake i have(3.1) up somehow so that the thing isent to restrictive. I know that 270* bend can not be good for flow and the hight isnt too good either. I do have acess to another upper intake off a 2.8.

If i made somesort of spacer that would make that bend less would that help of would making the plentum have more volume actually hurt higher RPM responce?

Any ideas of what i can do? Since im porting the heads/and all the intakes i though why not do something to the intake that would really help speed up the flow in there. And also ive seen flow bench ## on the TB and that seems to be a big! Restriction also.

 

No ideas?? Something pratical but effective? I wish i could just hook the TB up to the middle plentum and just throw the upper one in the trash!



That design of the intake system GM made for us just says torq but no HP...

 

port match/gasket match is about the best u can do witht he stocker. the 3.4 intake is a nice upgrade if u know osmone who can wel aluminum and can cut the crossover tube off in the back and weld up the holes

 

I know someone that can weld it up but and i atually remember a friend having a spare motor that he blew up in his barn. A 3.4L If i can find it Ill attempt this.

 

Like this thing:
https://www.thirdgen.org/forums/v6/6...-best-mod.html

 

Sorta, but I think with that extention of the plentum it would help the bend in the manifold but add to the length of the runners which is way too long for higher rpm power.

But the torq, I would think, would love the extra length and slower turning curves in the plentum.

Im still hopeing to see if i can find this 3.4 plentum that i remember seeing so I can play with it.

Has anyone shaved the TB?? Such as the bolts that overlap on the (flap) thats a technical term....Seems like that would help its cross section.

 

I've modified a 3400 TB, I don't recall what the 2.8 one looks like, but things you can do to TB are remove half the shaft if it is on both sides of the TB plate, you can knife edge the TB plate, and yes, you can grind the screws down a little, and grind down the remaining shaft portion as well, all of which I did on my 3400 TB(and no, I never had that TB on my camaro)

 

Well i didnt find a 3.4 plentum so the plan of action is just to be content with the ported/matched upper, mid, lower intakes i have. Who knows if all this work on the intake, heads, TB will be worth any Hp....oh well i can hope for the best.

I did notice the sharp edges/sides, to where the TB was assembled. When i just ran my finger along the front of the TB i could feel areas where there was a (clif) so i smoothed them down, so that it was a smooth transition from piece to piece. I did not take much meterial off at all just where it had edges.

Today i started to polish up the TB. Is there a better texture to have on the TB?? Smooth as possibe?? Or a swirl design?

Im kindof afraid to try and knife the TB blade. I need to make sure i have a very steady hand.

 

This was my setup- I have a spare set of spacers: if you want them, PM me. Easy bolt-on mod...

https://www.thirdgen.org/forums/v6...-best-mod.html (HERE IT IS!! The easiest, BEST mod I have EVER done to my intake!!)

 

Make your own w/sheet metal...




http://mckinneyracingproducts.com/intake.htm

 

still looks like the stock restrictive mid intake? truleo made intakes but they werent anything special. looked pretty but thats about it

 

Streat leathal. I wish i had those skills to weld aluminum! That looks really nice.
Looks like you opened up the horrible bend from the top to mid intake that kills flow so much. Sweet job.

 

That honestly isn't my intake, although I did remember when it was posted on here a few years back. I would honestly emulate a Hogans intake if I were to do one for a 2.8/3.1...

 

hhhhmmmm thats got min brain thinking if i could make that intake sit lower the why you did that plate is right on for a gtp blower man