Throttle bodies

[Silvester21]

First of all apologies if this has been asked before (which i imagine it has)

I have always wondered if throttle bodies run without air filters?

Simple little question really

Look forward to a response,
Dan

[rhinochopig]

You can but normally no on a road car.

eg

Or they are run in an air box as on a bike.

Edited by rhinochopig on Thursday 22 April 15:53

Edited by rhinochopig on Thursday 22 April 15:54

[davebem]

Im sure Ive seen them run with and without filters.

[spdpug98]

I ran the throttle bodies on my 205 race car for 2 seasons without an air filter, did give me (sound) drive by issues at Castle Combe though

[300bhp/ton]

Silvester21 said:

First of all apologies if this has been asked before (which i imagine it has)

I have always wondered if throttle bodies run without air filters?

Simple little question really

Look forward to a response,
Dan

A TB is a TB, presume you mixing up a stock factory EFI setup that usually uses 1 or 2 TB's with an aftermarket setup with a TB per cylinder??

You can run anything without an air filter, but why bother? Flow tests say most standard paper air filters can flow airflow enough to supply 500bhp n/a, so no filters just means more engine wear and risk of something large like a leaf, stone or small child getting into the engine.

[Silvester21]

300bhp/ton said:

Silvester21 said:

First of all apologies if this has been asked before (which i imagine it has)

I have always wondered if throttle bodies run without air filters?

Simple little question really

Look forward to a response,
Dan

A TB is a TB, presume you mixing up a stock factory EFI setup that usually uses 1 or 2 TB's with an aftermarket setup with a TB per cylinder??

You can run anything without an air filter, but why bother? Flow tests say most standard paper air filters can flow airflow enough to supply 500bhp n/a, so no filters just means more engine wear and risk of something large like a leaf, stone or small child getting into the engine.

Haha thanks, i did quite enjoy that reply