Supercharging ?
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Crazy Energy
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Supercharging ?
Blocks are Dart Big m 9.8 height decks 509's
Brodix heads, carrillo rods, carrillo crank, Hyd roller cam, sng 1050 carb N/A making 635HP @ 6000 RPM's. These motors only have 10 hrs on them.
9.3:1 compression
4.50 bore
4.00 stroke
6.135 rod length
Question is.
1. Can I slap a BDS 871 on top like it is and go or will I need to change pistons and cam.
2. What Hp will I get with 871's and 509 ci.
Brodix heads, carrillo rods, carrillo crank, Hyd roller cam, sng 1050 carb N/A making 635HP @ 6000 RPM's. These motors only have 10 hrs on them.
9.3:1 compression
4.50 bore
4.00 stroke
6.135 rod length
Question is.
1. Can I slap a BDS 871 on top like it is and go or will I need to change pistons and cam.
2. What Hp will I get with 871's and 509 ci.
Last edited by Velocity Vector; 09-06-2010 at 10:16 PM.
#5
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If you are good at tuning, you could run 2-4 lbs non intercooled oe 4-6 lbs with an intercooler. Of course if you want to lower the compression to 8.2 or so, you could run 5-7 lbs non intercooled, 8-10lbs intercooled and another 100 hp over the high compression set up.
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Crazy Energy
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I spoke with diamond pistons and the said I could go with what I have or they could releive my pistons a little. Debating on going ahead and boring my darts to 4.6 to 532's
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Why not use a carburated Whipple if you want to stay carb. They love some compression and 9.3 is not out of the ordinary. I have done them up to 10.2:1 and 9.5-10:1 is not uncommon.
I did a set about 1 1/2 years ago. They were a pair of my 750 NA's. They are 598, 10:1 with a 1050 dom. We just removed the intake and bolted on the Whipple and went to the dyno. They made 942 hp and 1070 ft lbs at 5.5 psi on 93 octane and 1020 hp and 1190 ft lbs at 8 psi on 100 octane
I did a set about 1 1/2 years ago. They were a pair of my 750 NA's. They are 598, 10:1 with a 1050 dom. We just removed the intake and bolted on the Whipple and went to the dyno. They made 942 hp and 1070 ft lbs at 5.5 psi on 93 octane and 1020 hp and 1190 ft lbs at 8 psi on 100 octane