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vwgearhead
Samba Member
Joined: February 21, 2005
Posts: 100
Location: Los Angeles,Ca
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 Posted: Wed Sep 19, 2007 9:45 am Post subject: Revmaster cranks and 90mm clearencing |
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| Can anyone tell me if they have used a "REVMASTER" flange crankshaft and if so can you tell me what you think about the brand and how did it work for you,I know they make aircraft products and I have recenctly seen the cranks being sold for type 1 automotive use,no one can tell me much about that product,also how much clearencing is needed to make a 90mm crank fit into a raised roof alum. case and is it worth the time and effort and whats the gain?? any response will be appreciated! thanx! |
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The Noof
Samba Member
Joined: January 25, 2005
Posts: 4346
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| Posted: Wed Sep 19, 2007 9:56 am Post subject: |
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Jeff Denham is our resident expert on huge type 1's.I'm sure he can be of the most help.
If that crank is available with Chev rod journals, and you're comfortable with H beam rods that use 5/16's rod bolts, the clearancing isn't that big of a deal.Watch the cam/rod clearinging though. |
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vwgearhead
Samba Member
Joined: February 21, 2005
Posts: 100
Location: Los Angeles,Ca
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| Posted: Wed Sep 19, 2007 10:11 am Post subject: |
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| ok thanx,yes I have emailed Jeff D. a second ago,he said its doable,some others are telling me I have to clearence the cam alot and I have a hardwelded cam,thanx for your comment! |
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Muffler Mike
Samba Member
Joined: October 10, 2002
Posts: 1054
Location: Lawndale Ca.
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| Posted: Wed Sep 19, 2007 10:24 am Post subject: |
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depending on the rod, thats probably going to be a .100"- .120" notch on each side of that cam. (aproximate guess on my part.)
sounds like a fun project.
STUMP PULLER.
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Muffler Mike
http://MufflerMike.com |
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SRP1
Samba Member
Joined: January 06, 2007
Posts: 4340
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| Posted: Wed Sep 19, 2007 11:33 am Post subject: Re: Revmaster cranks and 90mm clearencing |
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| vwgearhead wrote: |
| Can anyone tell me if they have used a "REVMASTER" flange crankshaft and if so can you tell me what you think about the brand and how did it work for you,I know they make aircraft products and I have recenctly seen the cranks being sold for type 1 automotive use,no one can tell me much about that product,also how much clearencing is needed to make a 90mm crank fit into a raised roof alum. case and is it worth the time and effort and whats the gain?? any response will be appreciated! thanx! |
I cannot answer your question on the revmaster crank as I have not used one. However on a 90mm stroke crankshaft using H-beam rod with 5/16" bolts and a chevy rod journal your clearancing will be the same as installing an 84mm crank with VW journals. You will need to do a little clearance work on the cam, besides the normal case clearancing you would do for a 84mm crank, thats it. |
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Eric_S
Samba Member
Joined: August 12, 2007
Posts: 862
Location: Sparks (think Reno) NV
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| Posted: Wed Sep 19, 2007 12:15 pm Post subject: |
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Don't forget about the long rods, short skirts  , high pins and long barrels. Long rods to keep the pistons in the cylinders, keep the skirts away from the crank and a favorable rod ratio. Short skirts also for crank clearance. 'B' or even 'C' (if you can find them, probably JE) to help keep the whole package a bit narrower. Long barrels are necessary for the increased piston travel. Count on an engine that's at least 1-1/4" wider than stock.
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Eric_S
What are all these extra parts? |
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vwgearhead
Samba Member
Joined: February 21, 2005
Posts: 100
Location: Los Angeles,Ca
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| Posted: Wed Sep 19, 2007 8:18 pm Post subject: |
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| good info everybody thanx alot,in just the few comments I think I have seen what I want to see,thanx! |
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Joel Mohr
Samba Member
Joined: March 07, 2002
Posts: 269
Location: High Desert SoCal
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| Posted: Thu Sep 20, 2007 6:53 am Post subject: |
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I've got Revmaster cranks in my drag car, and my street car, both 88's with chevy journal. I use a stock case, and like mentioned before, with a 5/16ths rod bolts, I could have put a 90 stroke in with ease....
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SEE YOU AT THE RACES!!!! |
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stealth67vw
Samba Member
Joined: January 22, 2004
Posts: 1852
Location: Grass Pants, Orygun
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| Posted: Thu Sep 20, 2007 7:58 am Post subject: |
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Scott Federolf has been using one in his chop top Unlimted Street car for a few years, but he is also using the whole Revmaster 3 liter engine. 600+ rwhp too!
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John Bates
JB Machining Services
1967 street Bug 2276 w/ 48 IDAs, 2020lbs with driver
7.76 @ 89.55mph 1/8 mile
12.34 and 108.10 mph 1/4 mile |
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vwgearhead
Samba Member
Joined: February 21, 2005
Posts: 100
Location: Los Angeles,Ca
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| Posted: Thu Sep 20, 2007 11:28 am Post subject: |
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| thanx alot!,im looking close into the revmaster crank and flywheel setup!! |
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miniman82
Samba Swamp Donkey
Joined: March 22, 2005
Posts: 9515
Location: Southern Maryland
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| Posted: Thu Sep 20, 2007 12:04 pm Post subject: |
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You're a BOLD individual, aren't you? 
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Build thread: http://www.thesamba.com/vw/forum/viewtopic.php?t=212747
| Glenn wrote: |
| satterley_sr wrote: |
I just wanted to bitch but I'm getting no sympathy. |
Welcome to the Samba. |
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