Another mod to increase stock wastegate effectiveness?

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Feb 19, 2004 | 06:00 PM

CrackHeadMel

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Learned alot | Alot to go

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From: Rotaryland, New Hampshire

Another mod to increase S5 stock wastegate effectiveness?

Ill have pictures later to describe a little more what im talking about, But

I have been porting the wastegate on an S5 Stock turbo when i noticed that the wastegate flapper has a small wear spot where it has been pressing against the turbine/wastegate cover thing, and there is a matching wear spot on the cover

Has anyone ever tried reliving this area in the flapper and/or the cover to allow the flapper to swing open more? I would try it on this one, however it was just sold.

-Jacob

Last edited by CrackHeadMel; Feb 19, 2004 at 06:10 PM.

Feb 19, 2004 | 07:30 PM

MrBob 86

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From: Cookeville, TN

I milled the inside of my cover out.

Feb 19, 2004 | 08:57 PM

RETed

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From: n

http://fc3spro.com/TECH/HOWTO/KWG/kwg.html

-Ted

Feb 19, 2004 | 11:21 PM

DelSlow

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From: Marion, Ohio

I ground down the top of my flapper door, and ground the flapper door arm down so exhaust would flow better around it. i also ground down the spot where the flapper door hits the cover. Id say the door opens at least 1/4" more than stock. Havent got my car spoolin again yet, so i dont know how well it works.