I wrote:
>I am currently rebuilding my 1973 MGB engine and would like some advice
>regarding upgraded cam choices and >any recommendations or personal experience
>with a particular cam.
>I will be installing this cam into a MGB engine with a +.020 overbore and a
>ported cylinder head (based on Peter >Burgess "Power Tuning MGB" suggestions)
>with 1.625 inlet valves, peco exhaust, K&N filters and HIF carbs (but I >have
>a Weber 45 DCOE and cannon manifold sitting on a >shelf in my garage)
Regarding the engine's compression.....
I've just measured the combustion chamber cc'c and estimate that the
compression ratio on this engine will be AT LEAST 9:1.
I've also found the Piper website in the UK where they claim their Fast Road
cam #BP270 will produce a 12 BHP gain. Cam Stats = 276 duration,
intake/exhaust lift .405", overlap 62, @ 1500-6500 rpm power band.
This cam (or a variant of it) also was highly recommended by Peter Burgess.
My MG is not a racer. I like to think of it as a modified street car. I am
looking for more all around performance, while retaining a reasonable idle.
Any thoughts or comments experiences regarding this Piper cam in an otherwise
stock MGB ??
Here is the link to Piper.
http://www.pipercams.co.uk/NewPiperWeb/redesign/PiperCamFrames.html
Select "Austin Rover B Series MGA MGB"
CAUTION: This link may take a while to load depending on your download speed.
As always, Thanks!
John
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