70mm throttle body (plenum)

[grandprix34]

I know DomesticPerformance.come and RSMracing.com sells them, but about how much of a gain will be....gained by this mod? I am really really thinking about it but i need a small push, someone to sell me the product if you will so i can go ahead and purchase it...about how much wheel ponies and how much of a difference in the 1/4...thanks in advance

[jmgtp]

Re: 70mm throttle body (plenum)

I know DomesticPerformance.come and RSMracing.com sells them, but about how much of a gain will be....gained by this mod? I am really really thinking about it but i need a small push, someone to sell me the product if you will so i can go ahead and purchase it...about how much wheel ponies and how much of a difference in the 1/4...thanks in advance

I know this isnt the buy/sell/trade part of the forum... but here it goes.

I have an RSM plenum with bored TB for 91-95 dohc engines. Its just sitting on a shelf. I dont use it because my engine has a 96+ top end. It used to be on my car. Gains were midrange and topend, seemed to pull deeper before power dropped off. I didnt notice any loss of low end or negative effects. If youre interested make me an offer. I paid ~$200 U.S. a few years back, plus a core charge. Obviously I'm not looking to get that much back for it but offers have to be reasonable. Heres the catch: I need your stock plenum back. If I ever want to revert back to the 91 style plenum that means I'm gonna need one. Buyer pays ALL shipping costs. (cost for you to ship me your stock one and me to ship you the bored TB one). Its in perfect condition.

[mythos21]

I have a stock intake manifold from a '94 3.4l that I thought replacing with a custom sheet metal upper intake manifold. I will have to look at what your manifold looks liek but if you still have it I would consider a trade or something. I have a machine shop out here that has ported a set of these heads and has gotten 317 cfm on the intake while still keeping it streetable. I was very supprized to see the air flow graph, man power all over the place, anyway so when I port the heads I will need a larger& better manifold

[SappySE107]

what lift did they get 317?