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Old 01-03-2013, 07:01 PM
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Quote:
Originally Posted by swanson1930 View Post
wanting to add a b&m 144 blower and was wondering how much of a HP gain will I have
Traditionally, the gain is on the order of 25-40% over naturally-aspirated with a modest 5-6 lb boost.
300 times 1.25 = 375
300 times 1.4 = 420
To use 8 lbs on pump gas, you'll need a 8.0:1 or less static compression ratio.
To use 7 lbs on pump gas, you'll need a 8.5:1 or less static compression ratio.
To use 6 lbs on pump gas, you'll need a 9.0:1 or less static compression ratio.
To use 5 lbs on pump gas, you'll need a 9.5:1 or less static compression ratio
To use 4 lbs on pump gas, you'll need a 10.0:1 or less static compression ratio.
I would make a phone call to Weiand and find out what their recommendation is for ring end gap and piston to wall clearance.
Look into some kind of ignition retard that changes with boost changes.

Last edited by techinspector1; 01-03-2013 at 07:13 PM.
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