Throttle body opinions

Cacaman · May 4, 2010

Hey all, i just have a quick question for any of you that have installed custom throttle bodies. I have a friend thats currently offering me an accufab 75mm throttle body for $150 brand new. Heres a link for the exact item:
Accufab 75mm Polished Throttle Body (96-04 GT) at AmericanMuscle.com - Free Shipping!

Now, I've always wanted a BBK 78mm, but my friend has told me it can be too much airflow for an engine like mine that has not been modded much. Here is a link for the BBK:
BBK 78mm Mustang Throttle Intake (96-04 GT) at AmericanMuscle.com - Free Shipping!

My questions is, if any of you all have installed either of the throttle bodies, which do you recommend (the accufab being $150 vs the $260 BBK). I need some input on the performance difference, considering the price differences as well. I know that the BBK looks beautiful installed, as per the pics on the site. Incase it helps, my car has a flowmaster exhaust, .373 gears, MGW short throw shifter, and diablo predator tune. Please give me some feedback on what YOU would do. Thanks!
-Alex

GDawg · May 4, 2010

I have an Accufab 75mm TB. You can't go wrong with it and $150 is a good price if it's in good condition.

slayerripkdc · May 4, 2010

78mm is to large for your mods. Go with either the 75 or even the 70.

LaserSVT · May 4, 2010

75 is more then enough, even with boost. The stock T-body is not a restriction though for a bolt on only 4.6L. It may "feel" like it did something but really its just letting more air in on lower throttle positions. At WOT the stock will flow more then the engine can suck.

Cacaman · May 4, 2010

Hey thanks for the pointers guys, I'll probably get te accufab tomorrow morning

Maxpowers · May 4, 2010

Cacaman said:
Hey thanks for the pointers guys, I'll probably get te accufab tomorrow morning

Good choice. You will not notice the difference in the two except in your wallet.

Cacaman · May 5, 2010

Oh really? A couple of people who said they bought it say they love it. Maybe their cars had more mods... if there will be no performance difference I wont get any. Thanks

Moon · May 5, 2010

Isn't there a benefit to the BBK unit being an intake as well? I read in some magazine or another that it was less restrictive.

Maxpowers · May 5, 2010

Cacaman said:
Oh really? A couple of people who said they bought it say they love it. Maybe their cars had more mods... if there will be no performance difference I wont get any. Thanks

You will prob notice a little difference in the butt dyno, but I mean with your mods you will prob not tell a difference between the 78mm and the 75mm

D-BOI · May 5, 2010

Save yourself the 250 bucks and buy a ford racing 70mm throttle body from UPR products for 81 bucks shipped and it comes with a new sensor. Works just as good as a bbk but costs a fraction.

1996-2004 Ford Mustang FRPP Ford Racing 70mm Throttle Body - UPR Products

Skidzz · May 5, 2010

What about a car with aftermarket cams? Would more of a benefit be seen with a larger TB?

streethorse · May 5, 2010

D-BOI said:
Save yourself the 250 bucks and buy a ford racing 70mm throttle body from UPR products for 81 bucks shipped and it comes with a new sensor. Works just as good as a bbk but costs a fraction.

1996-2004 Ford Mustang FRPP Ford Racing 70mm Throttle Body - UPR Products

Thats a whale of a deal..... I paid like $150. for mine about 5 years ago.

sneaky98gt · May 5, 2010

I got my Stack Racing 75 mm TB from AM for $100 shipped while on sale a couple a months back. No complaints at all. I don't see any need in spending more than $150ish on a TB.

A bigger TB will not hurt performance, but there is no need in paying more for a larger one when you don't need it. 75 mm is plenty for even a pretty heavily modified car. I do think people have logged pretty good track results with the BBK unit, but whether it's worth all the extra money is debatable. For me? Definitely not worth it.

D-BOI · May 5, 2010

streethorse said:
Thats a whale of a deal..... I paid like $150. for mine about 5 years ago.

It was like 75 bucks plus 10 bucks for shipping and then i found a discount code online, so it came out to like 81 bucks shipped. I have nothing bad to say about the ford racing one, i mean a throttle body does not need to be 250 bucks to work, i matched this with a C&L plenum just like you did and i love it. Now i cant wait to throw these cams on here and need to find a PI intake kit the one that comes pre tapped for the coolant sensor and get done with this bad boy.

Stark77 · May 5, 2010

Skidzz said:
What about a car with aftermarket cams? Would more of a benefit be seen with a larger TB?

A little bit, but if you've got a little more cash an intake manifold would get you much better gains, especially on the top end.

Cacaman · May 6, 2010

Ohhh, I thought maxpowers meant a difference between stock and the 75mm. Now that I see te ford racing one, I'll definately take it into consideration as well. Thanks again for the opinions, and let me know if the ford racing is "more bang for your buck".

D-BOI · May 6, 2010

it is, thats what ive been saying on this thread

Skidzz · May 6, 2010

Stark77 said:
A little bit, but if you've got a little more cash an intake manifold would get you much better gains, especially on the top end.

I already have a PI intake, and I've heard that the Typhoon is garbage. Do they make an aftermarket manifold that's worth the money?

Cacaman · May 6, 2010

Alright last question guys, sorry. So the 70mm Ford Racing TB should perform just as good as the 75mm Accufab correct? If so i'll definitely buy it tomorrow.

Oh and one more thing, does anyone know the size of the stock TB?
Thanks again!
-Alex

streethorse · May 7, 2010

stock TB is 65...... the frpp 70 TB is You should add a free flowing
X-midpipe to enhance the TB. An X will create a scavenging effect. More
flow in more flow out.

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