Holes in bumpers

[Garya88]

This is random guys but honestly want to know the whole purpose of drilling holes in the front and rear bumpers?

I can maybe get the just of the front bumper with holes for cooling but why the rear?


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[Louis]

This is random guys but honestly want to know the whole purpose of drilling holes in the front and rear bumpers?

I can maybe get the just of the front bumper with holes for cooling but why the rear?


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Scene points

 

[Garya88]

Like this


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[imprezaworks]

Cooling/airflow

 

[Garya88]

Cooling/airflow

Air flow better at the rear with holes in the bumper ? Just for the record guys I am not in anyway dissing this at all I just want to understand the benefits of it really


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[imprezaworks]

Can only be that imo, otherwise it’s retarded.

Pretty sure @Fraser.J. Has said holes.

 

[imprezaworks]

Boom

https://www.cliosport.net/threads/holes-drilled-in-back-bumper.776412/

 

[DaveDreads]

Speed holes.

 

[STEVE.M]

.303 Brownings

 

[Fraser.J.]

Can only be that imo, otherwise it’s retarded.

Pretty sure @Fraser.J. Has said holes.

No anymore. PS that’s my car 2 comments above yours

 

[imprezaworks]

Probably what made me think of you.

What happened?

 

[bloke]

Cooling/airflow

generally for screwing it up, bonnet vents and raisers spring to mind as well ?

 

[Ol’ Tarby]

It's to reduce drag at the rear ain't it? Something that's probably come from the 1/4 mile at a time crew

 

[imprezaworks]

Probably helps the clio massively in the 1/4 drag.

 

[Garya88]

Have also seen them like this so a take it thatnitsbto reduce drag etc


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[Fraser.J.]

Probably what made me think of you.

What happened?

Broke it for parts to build a mini to race up at knockhill in a Cooper s championship

 

[imprezaworks]

Ah yeah remember now. Nice.

 

[Raceface_13]

Front for cooling and rear to stop the back bumper acting as a parachute. Thats the theory behind it, how well it works i dont know as i know alot more goes on with aerodynamics and the flow of air and im sure car manufacturers wouldnt let every cars rear bumper act as a parachute.....scene points and because racecar...i might drill some