difference between?

[powerhungry966]

hey guys what is the difference between a halfshafted 56mm thorttle body and a thorttle body from bbk? besides price(bbk:$249 vs halfshafted $70), which is yeilds the most performance gains?

[powerhungry966]

any takers? would be gladly appriciated

[Kiljosh]

I wouldn't mess with a throttlebody yet judgin by the mod list in your sig.

Wait for some more engine work....

If your heart is set on it though, a halfshafted throttlebody(tb) is basically a stock tb that has had the shaft holding the throttle butterfly trimmed down. It increases flow through the tb substantially over stock and is a good FREE mod. I would not buy one, you could easily do it yourself with a dremel.

The BBK variety will be brand new, I think aluminum. It will probrobly come in a bigger size, bigger than the stock 56mm. It's useless to go bigger because the actual opening after the tb is not going to be any bigger than 56mm so you won't really do anything until you get the upper intake port matched for it.

Search around here, I will too, I'm going to see if I can find the guide I used to halfshaft mine.

[Danger Dude]

On a stock 3.8 a $249 BBK is a waste of money. A half shafted TB will also not do a whole lot on a stock motor but some say they experience better throttle response.

[Kiljosh]

Yes, I think mine comboed with the CAI very nicely, I remember getting greatly improved response.

[Danger Dude]

Quote: Originally Posted by Kiljosh Yes, I think mine comboed with the Cold Air Intake very nicely, I remember getting greatly improved response.

There you have it then!!!! I used a half shaft stock T/B for a couple of weeks after installing my stage 3 heads and intake until a TPS I ordered for my 5.0 60mm TB came in So I ddont know if I had improved Throttle response or not simply because of the 50+ hp gain at the time.