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12-02-2021, 01:13 AM | #41 |
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Join Date: May 2010
Location: Chester Vt
Posts: 8,840
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Re: L-100 & 9" clutch
Maybe I don't explain it properly, but, basically the port is too small and Turbulent to pass enough Oxygen (20% of the air) to assist burning enough fuel to make the torque necessary to make much hP
I have a friend that is running a 294ci L-100 cam engine that makes 235 HP@ 4500 rpm on less than 5LBS of boost. It makes over 300ft/lbs of torque AT 3000rpm on 3 pounds of boost/ See what alittle will do for these ports??? |
12-02-2021, 02:31 PM | #42 |
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Join Date: May 2010
Location: Chester Vt
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Re: L-100 & 9" clutch
Brian
Back in the 60's I built the engines for a sportsman stock car with a 258 max displacement, along with allot of other rules like stock size valves. This was to keep the cost down. after 8 years we had perfected the ' PERFECT CRANK ASSY. The lightest crank assy was the 38/41 91a and forged true pistons. we used Silverlight pistons The Jahnns were made from Lead. an Aluminum flywheel and pressure plate from Shafer. I don't think anyone makes an alum clutch any more. Thhis and 400jr cam was the ultmate powerplant for most of the cars.. I used a 33/34 " camel back intake hollowed out and a 2GC carb. The last 2 years befor the SBC engines replaced the flatheads I switched to a Sig Eroson D410 cam which had better power in the mid range. This cam is nonger available. I have on if someone wants to copy it Much better than the L-100 or 400jr. This little enging could really pull for its size. I built a similar engine for the Hydroplane "Baby Ruth" the boat ran in the 60 mph range. |
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12-04-2021, 11:42 AM | #43 | |
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Join Date: Nov 2010
Location: Lancaster PA
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Re: L-100 & 9" clutch
Quote:
And there no chance of boost in this application. |
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12-04-2021, 11:57 AM | #44 | |||
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Join Date: Nov 2010
Location: Lancaster PA
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Re: L-100 & 9" clutch
Quote:
Can you elaborate on "not impressed"? Not rev as high as expected, too lazy down low, too peaky, hard to tune the carbs, idle too high, etc? Quote:
Quote:
I'm working on compression. I have repro aluminum 34 heads, was considering even doing some welding in the chambers to make them smaller while they are still new. I'm planning on a lightened steel flywheel and 9" clutch, after removing the heavy ring I can mill the back to resemble an aluminum wheel, not certain of the finished weight yet but would be a compromise between an aluminum wheel and a normal steel wheel. |
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12-04-2021, 12:02 PM | #45 | |
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Join Date: May 2010
Location: NJ
Posts: 6,141
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Re: L-100 & 9" clutch
Quote:
I believe B&S worked with RAM clutches and got a lightened steel flywheel made that has reliefs in the back like you are looking to do. Last edited by Tim Ayers; 12-04-2021 at 12:48 PM. |
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12-04-2021, 12:17 PM | #46 |
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Re: L-100 & 9" clutch
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