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Re: Isky cams

To: Greg Burrows <gregnvicki@earthlink.net>, DatsunDoc@aol.com
Subject: Re: Isky cams
From: "datsun parts.com" <datsunpartsdotcom@yahoo.com>
Date: Tue, 12 Aug 2003 08:41:14 -0700 (PDT)
    Nice tip for those in the Northwest Greg.
 Also thanx to all who sent the good wishes and support through Email and phone 
messages yesterday. Your a good group of people....I should have come on the 
list sooner. Glad that I did! Dean

Greg Burrows <gregnvicki@earthlink.net> wrote:
Regarding the U20 cams, if a regrind is needed, Delta Cam in Tacoma, WA has 
proper U20 grinds, developed using a Cam Doctor to plot out the proper ratio 
etc. They can also regrind your rockers properly if needed. I am running a 
somewhat hotter than Solex but still streetable cam in my U20 and am happy with 
it. However, keep in mind that my motor is modified from stock, so I cannot say 
how well it would work for anyone elses application.
Greg Burrows

DatsunDoc@aol.com wrote:

> The Isky U-20 cams are all based on L-series profiles developed in the early 
>70's(they use the same master to grind the profile). They were developed for 
>L16 and L24 engines. They will work in U-20 engines but the actual valve 
>timing events will be different than advertized for L-series engines because 
>the rocker arm ratio is less for a U-20 than L-series. Hence, less lift and 
>less total duration. In fact, most aftermarket U-20 reground cams are ground 
>with L-series profiles to them.
>
> Mike Unger




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