kontroldkhaos

i wanna get the accufab intake plenum and throttle body..my engine is pretty much stock right now as it sits..i plan on a c.a.i. and headers in the future,,which mm would be better for my application? the 70 or the 75

2000GT4.6

if you never ever plan on running any sort of FI, 70 mm.

If you do, 75.

Either way you will probably not see a difference. BTW, MM&FF showed almost no gains with their NPI car when it was stock doing the intake boltons.

nitestalker

biger is batter go with the 75mm you need all you can get

kontroldkhaos

headers are a good choice though? right?

Dragon02GT

75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75 75


To the stickies my friend

click me...please

Dragon02GT

Yes, headers are always a good choice. I just put some BBK LT's on my car last week. Look at the difference between the stock manifolds and the headers.


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2000GT4.6

bull****. This is like saying that bigger cams are always better, or more porting is always better.

If you cannot flow enough air to take advantage of the bigger t/b you will decrease your airflow speed, and lose horsepower. This is akin (though not to the same extreme) as running extremely large aftermarket heads on a stock displacement engine. You simply do not have the flow to use the size of your parts.

This is espcially true on a NPI car.

I have seen horsepower and torque losses from t/b and intake tract stuff being to large. I will have to dig out the copy of MM&FF where they did redheaded stepchild for the first time, and put the intake stuff on. I think they even ended up taking it off because they lost too much power under the curve.

2000GT4.6

All of these are on PI cars......

Dragon02GT

Ok, I don't know about the NPI cars.... but for a PI car def go 75.

kontroldkhaos

im definetely getting headers for sure in the near future..im just trying to figure out what size tb'plenum i should go with ..or which ones i should get first