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06-20-2018, 06:36 PM | #21 | |
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Join Date: Sep 2017
Location: Southern California
Posts: 212
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Re: Looking for input /opinions
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06-21-2018, 10:53 AM | #22 |
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Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,440
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Re: Looking for input /opinions
Robert McCulloch was like Howard Hughes in a way except he wasn't as mental. His parents were very wealthy & left him the where with all to do anything he wanted too. He moved out to California as well just like Howard but he wasn't as quick to pour funds into monster projects like Howard did. He pretty much did whatever he felt like doing at the time and sold off the stuff he was bored with. He was a good engineer and had hired a lot of other good engineers. All the problems they had with the 37 thru 40 series blowers were ironed out with the VS series Paxton blowers. Variable speed made a lot more sense but it took a lot more engineering to make it work.
If you have a 39M or later unit then you should have one of the better units that McCulloch made in that era. By that time frame, they had settled the design issues to a pretty fair degree. They only thing about those blowers is the fact that you have to wind them up more to get more boost. They don't have a lot of boost going on at low RPMs. This is why they developed the variable speed drives in the later post war designs. Your going to have to have some heavier valve springs when you boost. The blower tries to force the intake valves open so they got to stay shut when they are supposed to be. Last edited by rotorwrench; 06-21-2018 at 10:58 AM. |
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06-21-2018, 01:20 PM | #23 |
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Join Date: May 2010
Location: NorCal
Posts: 2,617
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Re: Looking for input /opinions
Solid Axle
I don't understand this statement at all: Why would anything need to be modified, etc for the S.co.T. I have a perfectly good running stock 8BA and installed a S.Co.T. blower on it. I wanted to have everything set up correctly before modifying the engine. It took a lot of thought and fabrication to fit into a 32. My new plan is to leave as is till it needs rebuilding or I get bored. If you decide to go this way just don't push that early flathead too hard. |
06-24-2018, 03:40 PM | #24 | |
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Join Date: Mar 2011
Location: upstate NY
Posts: 478
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Re: Looking for input /opinions
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Cam, Merc crank, relieve the block. |
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06-24-2018, 05:50 PM | #25 |
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Join Date: May 2010
Location: Southern Maine
Posts: 1,499
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Re: Looking for input /opinions
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06-24-2018, 11:00 PM | #26 | |
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Join Date: May 2010
Location: MN
Posts: 7,053
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Re: Looking for input /opinions
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Ya I'm halfway with ya here. If you can spare a block, go for it. They are some tough beasts. I get just as much enjoyment out of a 37 block I know nothing about (haven't torn into it but runs great), as a do a 37 block I spent loads rebuilding. Not sure which one might implode with a "turbo" type supercharger. Maybe neither. Root might be softer but it all boils down to the systems that need to work to make it work. If I hd the parts I'd run it. . Last edited by Tinker; 06-24-2018 at 11:17 PM. |
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