View Full Version : Larger throttle body for 1.8T BT.

05-24-2011, 10:56 PM
Is there a direct fit larger throttle body for the AEB 1.8T? Or does it require an adapter?

05-24-2011, 11:05 PM
they all require an adapter plate. bigger throttle body= larger mounting flange

05-25-2011, 01:53 AM
pretty straight forward with the plate

05-25-2011, 05:02 AM
If you want to get the most of it, you should bore the IM opening to match.

05-25-2011, 08:22 AM
Larger TB isn't really needed for FT power. Now if your looking to make over 450whp then maybe.

05-25-2011, 08:27 AM
yeah there was a huge test on different TB and the power increase and such on a BAT setup, ill see if i can find it, but results for cars making under 300hp was very minimal like around 7-10whp, all need adapter plates i would also hone the inlet a little for a smoother transistion.

05-25-2011, 09:43 AM
The other issue that you may run into is that you'll need to get your tune adjusted to run the new throttle body. Like Mike said, unless you're running a GT30 or larger it's probably not worth it for the gains.

That said, I'm looking at your sig and about the only thing that you don't have is a GT or larger turbo. Any reason that you're still running the FT?