RE: lowering compression ratio for turbo

["Scott F. Williams" <sfwilliams@home.com>]

Stacking gaskets can work okay. However, it is a poor way to reduce
compression ratio. You end up altering the "squish" area (the area that the
fuel/air charge occupies at TDC) in a manner that reduces efficiency. In
fact, it is possible to ping more at a low CR than with a higher one when
doing this. The better way to lower your CR is with custom pistons.

Don't get me wrong, though. I can definitely be done with decent results.
______________________________
Scott F. Williams
Account Manager
GENUiTY - Eastern Region
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scott.williams@genuity.com

> -----Original Message-----
> From: owner-scirocco-l@scirocco.org
> [mailto:owner-scirocco-l@scirocco.org]On Behalf Of Jeff Toomasson
> Sent: Wednesday, November 21, 2001 11:22 AM
> To: scirocco-l@scirocco.org
> Subject: lowering compression ratio for turbo
>
>
> Back in the day, I saw an article in European Car
> where a guy simply installed two head gaskets, one on
> top of the other, to lower compression for his turbo
> installation. Is this a safe practice? Has anyone had
> experience with this?
>
> Leaning slightly more towards forced aspiration every
> day,
>
> JT
>
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