New cam for TPI 350

[Bruce]

From: "Dan Zorde" <dzorde at erggroup.com>
Subject: New cam for TPI 350
> Does anyone have any experiences with the CraneCams H-278-2 cam in a TPI
> 350 ?
> The application is roughly 1700kg car with 5speed manual, 3.08 diff,
> Sportsman 2 heads (circuit work, hill climbs, autokhanas, NO drag
> racing).  TPI is controlled by aftermarket MAP system with no closed
> loop control.
> Really just want to settly my worries that the cam may loose too much
> vacuum at idle, hence resulting in idle problems (also have no idle
> control motor, system just relies on a fixed size bypass hole for idle
> air).

My 270 was border line grief for daily use.  General driving was fine
prolonged stop and go would start to load up.  I had min the off idle timing
to keep it from lighting the tires so much.  Other then under a major
traffic jam, was fun

> Also, I'm told the standard throttle body is good for around 650cfm, can
> anyone tell me if I'm starting to get close to that limit with this
> setup and if I need to look at going to a larger size ?

Dual 2" butterflies are about 670, as claimed my Holley in some of their
lit, and it follows with some of what I've seen.  The dual 2s were a delite
for mild 320ish HP set up.
But just enough, using 5K ish shift point.  More cam and buzzing it higher
I'd want more air
Bruce
>
> rgds
>
> Dan  dzorde at erggroup.com
>
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