Don Malling wrote:
>Integral says TR5 is 269 duration is
>http://www.integralcams.com/tr-250_tr-6.htm
>Elgin says the TR5 is 269.
>
>Shane's page says the early TR6 is 280 (that would be TR5 No?) and later
>TR6 is 256.
>
>Maybe Shane could tell us where he got his info on the early TR6/TR5
>cam?
Sorry about the late response; I read the digest and then I had to figure
out
where I got these numbers!
They came from the Moss (UK)/TriumphTune "Performance Manual". Here, only
the open/close angles are given, and then I calculated the duration assuming
the
cam is symmetrical. This is a safe assumption as asymetrical profiles were
not used in mass-produced cars in the '60s and '70s.
Is Moss (UK) correct? Is Elgin/Integral correct? Who knows? For giggles
I'll
profile my old (original) cam next weekend and let y'all know.
Shane Ingate in Maryland
PS This weekend I futzed with the rear disk bracket for Rags, making a note
that I'll
need longer wheel studs. Also blasted the transmission/O-D case ready to
have it
powder-coated. Damn this alloy is porous, as oil spots started showing on
the casting
just hours after I finished the blasting!
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