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greek_tony Samba Member
Joined: February 12, 2013 Posts: 243 Location: Athens, Greece
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Posted: Tue Oct 23, 2018 6:32 am Post subject: WW 69.5mm crank and Speedwell Blower |
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Just wondering about this, I've got a speedwell supercharger waiting to go on my rebuilt engine with 1.4:1 rockers and a vintage speed abarth.
As the engine is getting built in the next couple months, I'm wondering if its worth investing in a WW 69.5mm crank to get even more torque.
I've heard that the Speedwell/Pepco runs best on a nearly stock engine. But i've also seen the Davey and Goliath gasser (love that car), with a 1600 engine and machined down carb.
Any ideas? _________________ 1963 Karmann Ghia - Sold
May 53 Ragtop - Resto started
October 65 Fastback - Almost there. |
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gimmesomeshelter Samba Member
Joined: May 08, 2004 Posts: 1466 Location: San Carlos, CA
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Posted: Tue Oct 23, 2018 9:44 am Post subject: Re: WW 69.5mm crank and Speedwell Blower |
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I would suggest contacting Ray at Speedwell.
Cheers,
Paul _________________ "I would rather have questions that can't be answered than answers that can't be questioned."
Richard Feynman |
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RichardinNZ Samba Member
Joined: September 16, 2011 Posts: 280 Location: Auckland, New Zealand
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Posted: Tue Oct 23, 2018 4:10 pm Post subject: Re: WW 69.5mm crank and Speedwell Blower |
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It may be worth finding the posts by txoval. From memory, his engine was stock stroke but had a different cam, larger valves, ported head etc, but his experience may still help. _________________ Richard
'58 Beetle; NZ Assembled
Dual Carb 36hp
My Car https://www.thesamba.com/vw/forum/album_page.php?pic_id=1750253 |
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mandraks Samba Member
Joined: November 28, 2004 Posts: 7050 Location: Lawrenceville, Ga
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Posted: Thu Nov 01, 2018 1:54 pm Post subject: Re: WW 69.5mm crank and Speedwell Blower |
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item one, i do not know the answer to your question.
item 2, 40 horse motors with better rockers run MUCH better than stock, and they do like to rev.
item 3, i can't imagine why you would not want to put in the 69.5mm crankshaft. displacement wise you are not really adding that much anyway. As long as the compression is in the right area? _________________ regards
Uli
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'53 3-Fold Oval, L35 Metallic Blue, looking for a narrow hatch panel |
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greek_tony Samba Member
Joined: February 12, 2013 Posts: 243 Location: Athens, Greece
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Posted: Fri Nov 02, 2018 3:06 am Post subject: Re: WW 69.5mm crank and Speedwell Blower |
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mandraks wrote: |
item one, i do not know the answer to your question.
item 2, 40 horse motors with better rockers run MUCH better than stock, and they do like to rev.
item 3, i can't imagine why you would not want to put in the 69.5mm crankshaft. displacement wise you are not really adding that much anyway. As long as the compression is in the right area? |
Thanks! _________________ 1963 Karmann Ghia - Sold
May 53 Ragtop - Resto started
October 65 Fastback - Almost there. |
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