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Date:         Mon, 24 Jun 1996 10:14:22 -0700 (PDT)
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         eugp@uclink3.berkeley.edu (Eugene C. Palmer)
Subject:      Re: horizontally opposed redline

>You need to discriminate between noncounterweighted HO engines, like VW, >and counterweighted HO engines, like Porsche. For the VW engines, 4000rpm, >or right around 70 for a lot of our buses, is where my ears are calibrated >if I'm not watching the tach. > >The Porsche engine doesn't give the sense that it is straining until far >above that, and power continues to build until 5500 or more, or at least >it feels like it does. > >Any listmembers able to comment, before-and-after-wise, on a VW engine that >got an aftermarket counterweighted crank? >B. >Wm Kennedy >kennedy@admin.njit.edu >

Able? Well I guess so. Qualified? Doubtful. For the VW valve springs, I'd also say 4000 RPM. If you have the counter-weighted crank and stronger valve springs, then you can move the RPM limit up. I still try not to exceed 5000 or 5500 even with a CW crank and dual springs.

Eug, '71


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