Q: 16v throttle bodies

**WABIT** · 23-02-2008, 06:09 PM

hey guys quick question

are all 16v throttle bodies the same diamater??

it has confused me slightly due to the fact that some mani's are 50mm runners and some are 42mm?

also would the audi throttle mod fit this and will it be bigger??

wabit

**h100vw** · 23-02-2008, 09:30 PM

The throttle body on KR motors is the same regardless of the diameter of the inlet manifold's runners.

The 50mm manifold flows significantly better at the top end over the 42mm one.

The 42mm is fitted to Corrados and Passats due to the better torque it produces, which helps with the extra weight of both cars.

Gavin

**rayray086** · 23-02-2008, 10:06 PM

PM peedman about what he has. He was thinking of doing a ITB setup using 4AGE throttle bodies and (I think) has an adapter plate for it to go on a KR that he didn't end up getting (which I think is in your hands now!).

**peedman** · 24-02-2008, 07:53 AM

nah they are still at my house, that mini project has been shelved tho may be resurrected if things go my way

**WABIT** · 24-02-2008, 07:54 AM

Originally Posted by h100vw

The throttle body on KR motors is the same regardless of the diameter of the inlet manifold's runners.

Gavin

awesome... is this the same as the 9a engine?? as i am running this in my mk1

Originally Posted by rayray086

PM peedman about what he has. He was thinking of doing a ITB setup using 4AGE throttle bodies and (I think) has an adapter plate for it to go on a KR that he didn't end up getting (which I think is in your hands now!).

hehe funny you said that as i was almost about to get a set from the u.s but a little thing called k-jet

stood in my way.... and nooo i dont want to be going megasquirt othersise i wouldnt be able to resist on modifying my engine and turning this thing into a race car

WABIT