Throttle Body choices?

93STVCobra · Mar 25, 2011

Is there really any diffrence in Throttle body beside names? and is there a diffrence betwen satin and polished beside looks does the air have less resistance or flow better any way in polished over satin?

tannerc91gt · Mar 25, 2011

other than sizes obviously, there really isnt too big of a difference. Just pick a company with a good reputation. Lot of people have issues with BBK TBs whistling but its a pretty easy fix. Other than that its up to picking a size that goes well with your intake and getting a MAF that matches

Kdubslugga · Mar 25, 2011

Yes and no on the function. Companies like Accufab make top notch throttle bodies and u pay for it! Satin or Polished is nothing but a visual upgrade, no performance whatsoever. On cheaper Throttle bodies like Mac, Professional Products etc, they've been known to whistle under wide open throttle, thats really the only complaint Ive ever heard from cheap throttle bodies. Ive been running a Mac 70MM for 9 years never had a problem. If your bone stock and gonna stay that way, Id recommend a 65mm, If you plan on doing heads or cam or intake, Id recommened a 70mm. Im making 510 to the wheels and I could make some more hp with a 75mm, but theres no point making more HP on a stock based block. Ill just keep my 70mm and be happy with 510 HP

93STVCobra · Mar 25, 2011

Well I got the stock 65mm, on my 93 Cobra, I am thinking of Professional Products 75mm and EGR spacer those combo up are 200 flat both polished, and the other choice is Accufab 75mm Throttle Body & EGR Spacer for 280, if the Accufab is hands down the best I don't mind the 80 more bucks but if the Professional Product kit has equal performence. Basically I am only upgrading my TB because I am going to buy a AFM 4" Powerpipe with a Pro-m 80mm MAFM

tannerc91gt · Mar 25, 2011

What intake?

93STVCobra · Mar 25, 2011

I am currently still using the stock intake manifold, I just wanted to replace my CAI/MAFM/TB and then work on the more exp stuff like Heads/Intake/Custom cam once all finished

larrym1961 · Mar 25, 2011

tannerc91gt said:
other than sizes obviously, there really isnt too big of a difference. Just pick a company with a good reputation. Lot of people have issues with BBK TBs whistling but its a pretty easy fix. Other than that its up to picking a size that goes well with your intake and getting a MAF that matches

I've used both a Proffessonal Products and TFS 70mm throttlebodys, both look very similar in design,and both had that annoying tea kettle whistle @ idle. Also the Throttle plate kept sticking closed on the TFS when I would let off the throttle. I went with an Edelbrock 70MM and no more whistle.

tannerc91gt · Mar 25, 2011

93STVCobra said:
I am currently still using the stock intake manifold, I just wanted to replace my CAI/MAFM/TB and then work on the more exp stuff like Heads/Intake/Custom cam once all finished

Not really a whole lot of sense in putting a 70-75 mm opening on a 60mm inlet... So id either wait until you can afford to do both, or get yourself a dremel and open up the stocker a little bit. Youre going to need a bigger EGR spacer too btw.

larrym1961 said:
I've used both a Proffessonal Products and TFS 70mm throttlebodys, both look very similar in design,and both had that annoying tea kettle whistle @ idle. Also the Throttle plate kept sticking closed on the TFS when I would let off the throttle. I went with an Edelbrock 70MM and no more whistle.

this is the cause of that whistle in a lot of cases, just needs ground down a little and the sound goes away.

Rick 91GT · Mar 25, 2011

Stock opening on the 93 Cobra is 70mm (65mm TB) so you can go to that size with no problem. I am not a fan of the PP pieces due to quality, if you do go that route undo the TB blade screws and red loctite them in...seem them come out and get embedded in pistons Ive also hated the sticking they tend to have.

I personally like the Accufab, Holley or Wilson pieces, top notch quality and performance.

With the Cobra you only need a TB, no EGR spacer like mentioned above. FWIW, the 70mm Accufab Tb only runs $245

2000xp8 · Mar 25, 2011

I'm all about the accufab throttle bodies, yes they cost a little more, and may not create all that much if any more power, but when you line them up next to the rest of them, it's blatently obvious there has been more time put into them.

Professional products make junk, after seeing their intake i would never buy a thing from them. I also hear (from reliable sources) that their balancers are also worthless if you want accurate timing.

earleys94gt · Mar 25, 2011

Accufab or Edelbrock = good

Professional Products(chinese cheap crap) = bad

Kdubslugga · Mar 25, 2011

Yeah I bought a Cobra intake once,found out it was made in China, I sold that crap the min I found out. Nothing Chinese is going on my car! Stay away from anything Professional products

Vinnietbird · Mar 27, 2011

I just use an Explorer throttle body. I also had the local machine shop open my spacer to 65mm. They charged $10.00, and I figured that was a lot cheaper than buying aftermarket, and a 65mm hole is a 65mm hole. LOL. It's been great. My Explorer t-body actually whistled a little, but I smoothed and polished the inside of it, and it the whistle went away.

93STVCobra · Mar 27, 2011

Throttle Body choices?

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