The key numbers aren't really what you find in the cam data, but what you
generate on the dyno. The cam data can be used as a guideline to compare
performance, but there are other variables that contribute to horsepower
(obviously). I want the highest lift cam that will fit, with the appropriate
duration. The S-9 cam has higher lift than most I've seen.
Jerry Barker had done a lot of work on the dyno with various cam profiles
including the standard Isky cams and many of his own profiles ground at Isky.
The S-9 grind outperformed all of them. I had the same experience in my
Spitfire and have translated that info to my GT6. We got some pretty good
horsepower numbers (you'll have to get the book for more details :)).
I'm no expert on this, but Jerry certainly is. It will be interesting to see
what Larry can come up with once he starts playing with the 6 cylinder cams.
Chuck
-----Original Message-----
From: Jason Ostrowski <jason@multivintage.com>
To: chasgee <chasgee@aol.com>
Cc: cartravel <cartravel@pobox.com>; fot <fot@autox.team.net>
Sent: Thu, May 12, 2011 5:01 pm
Subject: Re: [Fot] GT-6 Racing Cam
Yes, And the grind # is not the same as any of the ones I have either, I would
imagine Isky will make whatever you might desire, as I know one of my old
boxes reads "Custom Grind". Obviously, the Kastner cams have always been THE
cams to model after... tweaked a bit I suppose for personal style and
financial means. (more radical = more rebuilds.)
Forgive me Kas and Chas's GT6. It kills me that I haven't gotten your new book
yet... Excuses, excuses... every extra dime I make GONE into my basic racing
budget. The cost of racing this thing has not left over much cash to buy the
book that will make me go faster and spend more money!
So Chuck you have an S-9 in the new GT6, or ?
This seems like a perfect moment please for one of Ya'll to enlighten the less
knowledgeable about what exactly are the key numbers regarding duration and
lift,, opening and closing, and all that... What will ultimately determine a
cam shifting from mild to say not so mild? A "cliff notes" version, using
these 2 Cams as an example (Kas S-9 and this Isky Z-66+10)?
Cheers.
Jason Ostrowski
Friendly Ghost Racing
On Thu, May 12, 2011 at 4:34 PM, <chasgee@aol.com> wrote:
All,
Based on the numbers in the Isky catalog, it looks like they are milder that
the original Kastner S-9. The S-9 is quite a cam and produces really good
power. I would not overlook it as an option.
Chuck
-----Original Message-----
From: Jason Ostrowski <jason@multivintage.com>
To: Larry Young <cartravel@pobox.com>
Cc: fot <fot@autox.team.net>
Sent: Thu, May 12, 2011 2:22 pm
Subject: Re: [Fot] GT-6 Racing Cam
Isky Cams has some specs for 6 cyl Triumph cams on the website in their
nline catalog. http://www.iskycams.com/onlinecatalog.html
have several Isky Cams that came with my car and a Crane cam as
ell. Also, The extremely fast Zippy Racing GT6 uses a very old and well
aintained Isky Cam. They call Mr. Iskenderian the CAMFATHER for a reason.
or what its worth, that's two Championship winning GT6's, with long,
ong race histories in SCCA and Midwestern Council... after hundreds of GT6
ace outings running up front, The Isky cams have remained in both engines
ebuild after rebuild.
e advised... I am not an experienced engine builder, but have been rather
anatical when it comes to studying what has been successful in GT6 race
ars.
Jason Ostrowski
riendly Ghost Racing GT6 #27
n Thu, May 12, 2011 at 2:04 PM, Larry Young <cartravel@pobox.com
> wrote:
> I could not find specs for their cams at that website. I have started a
table of 6 cylinder cam specs, similar to the one for TR3/4 at my website.
The problem is that most companies don't list complete specs.
Larry Young
www.TildenTechnologies.com <http://www.tildentechnologies.com/>
On 5/12/2011 11:04 AM, Charly Mitchel wrote:
> Delta cams has about 8 cams that work well in British cars.
> http://www.deltacam.com/
> Charly Mitchel
>
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