Intake length vs torque, Just anthoer carb question No boobs |
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Intake length vs torque, Just anthoer carb question No boobs |
Joe Ricard |
May 18 2005, 02:03 PM
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#1
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CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
So I have short intakes and 44IDF's with 38mm vents
How long of an intake should I go to with these carbs or should I go to 40 IDF's with 32 vents or 28 vents. I have some longer runner intakes and the other carbs so it's just a matter of experimenting I guess. 2.0L Bus piston Web 86B portmatch intake and exhaust ports. 13lb flywheel Bursch SSI Car weighs 1965 lbs 205/50-15 Kumho V700 R tires. Thought of playing with spacers under the carbs to get more length and maybe spacer under the common length velocity stack. Looking for more torque down lower to pull harder exiting the apex of tight AX turns. Whose got the experience of really been there done that? great gains or don't bother. |
messix |
May 30 2005, 10:18 PM
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#2
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
the stacks jake is using are doing nothing but smothing the air flow into the carb-t/b.
the can-am cars with the multi level stacks was a botch up job of tuning out flat spots in the power curve of the motors. and those exposed stacks had bad problems at speed due to unstable and turbulent air entry. take a look at all forms of racing now , do you see any thing like this now? modern tech has shown how important smooth and calm air entry and port tuning of the intake runners to produce the best power. it is not a magical art or some big mistery. jake has done the hard work of trial and error, where engineers have modeled all this with modern hydrodynamics models aided greatly now by computers. all this is alot of math for us garage builders so trust the cams grinders and intake designers to what they tell you about what the rpm range and torque band will be for your combo will be. |
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