O/T Compression ratio and supercharging

[Todd....!!]

I've seen people runnin as high as 10.5:1 with a big ol BDS blower on
their BIG V-8....

They were runnin alcohol however, so the fuel you stated you will be
using is an important factor....

I'd go with the 8:1 as well...

Another tidbit that may or may not help is that my 91 Mitsu Eclipse
Turbo 5-speed had only 120 lbs. of compression pressure on all four
sylinders....

Whereas my 69 440 in my 70 Superbee blew 205 in most of the cylinders...
It has flat tops with open chambered heads, and should be at about high
10.x:1 compression...  Somethin to think about....

LATER!

Todd....!!
http://www.c-com.net/~atc347/toddlnk.htm



David Piper wrote:
> 
> Run 8:1
> 
> At 08:50 AM 5/26/99 +0800, you wrote:
> >
> >
> >Hello fellow diy's,
> >
> >Been of the list a while as I have changed jobs (took a while to get a new
> >email
> >going).  Anyway, I tried getting to Bruce's calculation page as I was hoping
> >for
> >a guiding formula for selecting compression ratio (CR) based on s/c boost,
> >however I keep getting the message the page is not available (anyone else
> >having
> >problems accessing it from the efi332 home page ?).
> >
> >Does anyone have anything I can use as a guide for calculating max possible CR
> >on a forced induction engine ?  I know the standard formula but it doesn't
> take
> >boost into account.
> >
> >If there is no such formula, what would be a feasible CR in a Fiat 903cc motor
> >running max 16PSI boost ? (8:1, 7:1 ?)  Looking at running on standard 96
> >octane
> >leaded or possibly 100 avgas.
> >
> >Thanks in advance
> >
> >Dan  dzorde at erggroup.com
> >
> 
> TurboDave