Throttle Body & Plenum?

[scupking]

I will be getting a Throttle body and new Plenum but was wondering what size too go with. I was looking at Accufabs 70mm and 75mm Combos and also BBk's 75mm Combo. What size and what brand. What 75mm be to big. I will be getting VT stage one cams in the future and a port and polish.

 

[streethorse]

I went with a C&L plenum and a FRPP 70mm TB. This combo works perfect with
no need to change the factory tune. With minor mods this is the way to go.
I think 75mm is overkill for a stock 4.6. But if you are planning on cams and a
custom tune you may want to go ahead and plan for the future and get the 75mm.

 

[bluextc]

I got the Accufab 75mm tb/plenum combo. I went with the 75 because I thought for the small difference in price, I'd rather plan for the future, as I will be doing alot more to the car down the road. I put them in at the same time as the sct tune and it was a pretty noticable gain. I'd say go with the 75...

 

[007]

If you dont have gears, then dont waste your time on the plenum yet. 4.10s + chip/tuner are about 20x more effective on an auto.

 

[steveb24]

ive seen numbers before showing the diff in 70 vs 75 to be next to nothing, and for 420 rwhp and under, 70mm was making more power. its a bolt on tho, dont expect much to begin with.

 

[Duke309]

tb and plenum is worth about 6~ hp, you are much better off getting gears. I would never drive my car without 4.10s again.

 

[scupking]

Yeah this is the list of things I want to do too my car. Gears, rims/tires, SCT Xcal2 and paint will be done this year. But this is my list, my goal is too get around 300 rwhp and run in the 12s.

SCT XCalibrator 2
FRPP 4.10 gears
Black Bullitt Wheels (17x 8 in the front 17x 10.5 rear with 245s up front and 275s out back)
VT Stage 1 cams
Port and Polish
All Year Mustang Handling Bullitt Spring package
Accufab 70mm throttle body
C&L Performance intake plenum
Tranny cooler
Paint

 

[BurningRubber]

Accufab is really expensive, as are a few others.

Your pretty much paying for the name when it comes to TB and plenums. They are all very close in hp #'s, and for the little gain you get I could not justify paying the price for an Accufab setup.

I went with regular finish Professional Products 75mm and RPM (C&L casting) plenum for $200.

Or Professional Products has their polished tb and plenum for $250 or so at RPM outlet.

The BBK plenums are around $100 or so *seem em at $90*, and you can go with whatever throttle body you want.

Im just reccomending you dont overpay for the combo. If you want looks then your gonna spend $. If you want function, you dont have to blow almost $400.

 

[scupking]

Sounds good I will go with one of the ones at RPM.

 

[007]

Get gears instead.

 

[superstang01]

get the gears ,gears are the best bang for the buck besides a supercharger ,and since your keeping your car naturally aspirated you should get some 4.10 gears

 

[007]

You'd be mad to go plenum/tb before gears. Trust us.