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> Where can I buy a Type-IV "stroker" crank?
Charles Deutsch
post Sep 16 2003, 11:21 AM
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Scat quoted me a price of $1499 for a 78 mm, one piece chromoly billet, T-4 crankshaft and I can buy one from Aircooled.Net for $500 but are there any other places that I can check for prices?

Thanks.
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Brett W
post Sep 17 2003, 07:45 AM
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Check out DPR I have heard nothing but good stuff from them. For street use the welded stroker cranks are not a problem. If you want to race get the new forging from SCAT or HTC. Moldex might do one for you as well.

DPR can be reached here:

DPR Machine Shop, Inc.
2121 S. Susan Street, #B
Santa Ana, CA 92704
(714)979-7441
(714)979-7442 Fax


AS far a rod ratio goes, 1.70-1.80 is generally considered optimal. The shorter the rod the higher the piston speed and side loading on the cylinder walls, but it also sucks harder through the intake ports, so bigger intake ports can work well on the street. For durability stick with a rod ratio close to what porsche designed into the engine. IF you change the rod ratio you need to develope the rest of the engine to take advantage of such a change. Meaning heads, compression, exhaust design, cam design, etc...
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Charles Deutsch   Where can I buy a Type-IV "stroker" crank?   Sep 16 2003, 11:21 AM
tat2dphreak   AC.net is usually the cheapest place... most other...   Sep 16 2003, 11:28 AM
john rogers   Two sources are Pauter in Chula Vista CA and Autoc...   Sep 16 2003, 11:39 AM
Brad Roberts   The Scat is ONE piece and not a stock welded crank...   Sep 16 2003, 11:41 AM
Charles Deutsch   How good are Demello cranks? I see they sell 78 mm...   Sep 16 2003, 12:07 PM
Brad Roberts   Damn it.. I knew I should have bought that used De...   Sep 16 2003, 12:11 PM
tat2dphreak   I would also ask Jake... see where he gets his(or ...   Sep 16 2003, 12:20 PM
bernbomb914   Is there a reason that porsche limits its stroke t...   Sep 16 2003, 12:26 PM
Gary   Formula for displacement is piXradiusXradiusXstrok...   Sep 16 2003, 01:39 PM
Charles Deutsch   Next week I'll probably order the Engine Analy...   Sep 16 2003, 01:53 PM
Aaron Cox   berman vw sells them. they have some w/ vw journal...   Sep 16 2003, 05:53 PM
tat2dphreak   read shoptalk before buying anything bergmann... i...   Sep 16 2003, 07:53 PM
Korijo   Demello. Thats what I'm getting. 78 w/ Chebb...   Sep 16 2003, 08:59 PM
john rogers   An item that is easily overlooked is the rod lengt...   Sep 16 2003, 09:15 PM
Brad Roberts   John.. Have you played with Rod ratios for the ty...   Sep 16 2003, 11:42 PM
Brett W   Check out DPR I have heard nothing but good stuff ...   Sep 17 2003, 07:45 AM
Charles Deutsch   Thanks for the great info.   Sep 17 2003, 08:46 AM
Charles Deutsch  

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