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Boosted Diagram Help Collection of diagrams for Supercharged, Turbo setups

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Old 02-21-2012, 11:18 AM
Tom Manner
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Default Blown 5.7 Hemi

5.7 Hemi, 9.6 compression, caburated, mild cam.
Looking for a good starting place on a timing curve.
Where can I get the figures used for a LS9 Chevy shown on the MSD charts?
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Old 02-22-2012, 09:22 AM
msdtech1955's Avatar
msdtech1955 msdtech1955 is offline
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Join Date: Jan 2008
Posts: 10,290

what size blower? over drive? the more info you give me ...the better we can help.

we actually did some testing with oddy's automotive..
with a 8-71 and twin 750 carbs.

Last edited by msdtech1955; 02-22-2012 at 09:31 AM.
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Old 02-22-2012, 10:46 AM
Tom Manner
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Default Blown 5.7 Hemi

The blower is a Magna Charger model 122
The blower pulley is 3.4" so the drive ratio is 2.06 to 1.
The MSD system shows 8 lb. of boost.

Cam specs; Duration, I- 268 deg.
E- 274 deg.
Separation 112 deg.
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blown hemi help

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