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View Full Version : Can i run a small blower with 9.6:1 compression?


sweet1969
08-29-2014, 05:32 PM
Can I?

I am not worried about gaining a huge amount of HP but i like the look of a blower.
Here are the specs on my engine:

Power: 430 HP @ 6000 RPM, 430 ft. lbs. of torque @ 4200 RPM
Displacement: 350 CID, 5.7L
Bore x Stroke: 4.00” x 3.48”
Compression Ratio: 9.6:1
Recommended Fuel: 92 Octane
Block: Cast Iron, 1 piece rear seal, 4-bolt main caps
Crankshaft: Forged Steel
Connecting Rods: Powdered Metal Steel
Pistons: High Silicone Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .525” Intake / .525” exhaust
Cam Duration @ .050”: 218 deg. Intake / 228 deg. Exhaust
Lobe Separation: 112 Degree
Cylinder Heads: Aluminum, 3/8” screw-in rocker studs
Combustion Chamber: 62cc
Valves: 2.00” Intake/ 1.55” Exhaust
Rocker Arms: Aluminum Roller, 1.6:1 Ratio
Valve Springs: 12551483
Balance: Internal
Maximum GM Recommended RPM: 5800
Ignition Timing: Base 10 degrees BTDC, 32 degrees total

coloradoguy
08-30-2014, 06:14 AM
Yes, but you have to run very low boost and really good fuel... I've seen one combo similar to yours run about 4 lbs of boost, and they had to run 110 to keep it from detonating... Just keep your timing and boost down, you should be ok....

davelee
09-13-2014, 05:00 AM
put a thicker head gasket

hshufelt
11-06-2014, 06:36 AM
yes you can run a blower just dont over drive it and run good fuel and keep the timming down and you will be fine