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Modified BSA A65

Re: Modified BSA A65

Postby mark parker » Sat Sep 12, 2015 8:16 am

Hmm, didn't go too well. Cut and filled the port and it looked pretty good, tested it, reads low, so start reshaping a bit, reads lower. Do what I should have done before starting and test the right hand port minus carb and manifold, also reads low. Put calibration head on and check flow at .438" which I know is 158CFM, it also reads low! Work out new calibration, left port before modifying was 183.3CFM with no manifold or carb, R/H port is 184.7CFM, both at .410" lift. R/H port with manifold and carb is 194.5CFM . Trouble is the left port is now at 176.6 and I need that 5-6CFM back. I guess tomorrow is another day.

mark parker
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Joined: Wed Aug 05, 2015 5:54 am

Re: Modified BSA A65

Postby nortriubuell » Tue Oct 13, 2015 12:27 pm

THE coolest BSA I ever saw 8) thanks for posting. :)

70 Triumph 650 chopper
73 Norton 750 "bitsa"
74 Norton 850 project
76 Triumph w/69 650 motor
80 Kaw KZ1000
99 Buell Cyclone

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Location: Yulee, Florida

Re: Modified BSA A65

Postby luckyfreeman » Sun Jan 22, 2017 11:32 pm

swooshdave wrote:And what did you do to the timing side of the crank?
Thats what I want to do like SRM bushing to bearing conversion..Need an expierienced machinist that can do this conversion like SRM need proper roller bearings and machine shop that do all this for me key word is expierienced with provable track record...need oil holes done in case halves and srm oil pump ...please post info and contact numbers east coast prefered...usa 1969 bsa

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Joined: Sun Jan 15, 2017 7:46 pm


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