Raymond:
I have the Isky Z-19, and like it very much for a street cam. Good midrange
torque, and have run it up to 6K rpm, tho it's happier up to about 5500.
However, its full potential was not realized until I converted to Goodparts
triple ZS carb set-up. I don't think the flow thru the stock manifold is
very efficient in the way it's split across all 6 cyls. I don't know if
injection would cure that if it stays with only 2 intakes. JMO. Good luck;
should be fun.
Tom
----- Original Message -----
From: "Raymond Hatfield" <iron_horse819@yahoo.com>
To: <triumphs@autox.team.net>
Sent: Tuesday, October 19, 2010 8:48 AM
Subject: [TR] 6 cyl Camshaft Poll
>I recently asked for experiences and opinions on 6 cyl camshafts on the
>6-Pack list and didn't receive as many responses as I had hoped for, so I
>thought I would address this list with the same question. For those people
>who are on both lists, I apologize and ask that you just skip over this
>email.
>
> I am in the process of laying out the rebuild of my 2.5L 6-cyl and am
> trying to decide which cam would be best for my use. I know this is a grey
> area for many people and opinion is easier than fact, but I think the
> members of this list are probably the best resource available to help me
> decide.
>
> This is going to be for a street car, not a track runner. I live in an
> area with lots of hills and winding roads, which I prefer over highway
> running.
>
> Here's what I have decided so far:
> I have the late model engine & head which will be balanced and blueprinted
> with the head ported and CR raised to 9.5:1 or 10:1, and an aluminum
> flywheel and fan eliminator added; I plan on the 1.65:1 roller rocker
> setup; I'll be adding EFI (haven't decided on a system yet, but leaning
> towards MPI over TBI) & an EDIS system; 6-3-1 headers w/ free-flow exhaust
> system. I already have an A-Type overdrive for those times I will be
> cruising on the freeway.
>
> My early favorites are the TR5 profile, Richard Good's GP2 or TSI's S-2.
> The 6-Pack list query has brought another cam into consideration: Isky
> Z-19. If you have another cam you're really happy with, please suggest it,
> or give me your experiences with the above. I will report the results
> (and my decision) once I have received all responses.
>
> Thanks in advance,
> Raymond L. Hatfield
>
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