Hi Tom,
It's not so much the blower, although they do have max flow capacities,
but it's more the limitations of the design of the motor. I think the
Moss kit & Sal's kit start with 5-6 lbs of boost using a 3-1/4" pulley.
I have installed a smaller pulley to bring the boost to about 8-9 lbs.
To safely raise boost pressures over 10 lbs you need to incorporate
timing retard devices & water or alcohol injection, along with 92 oct
gas. I'm talking about street motors now, not dragster engines that
are rebuilt after a few runs down the track. Engines that run higher
boost levels are usually designed that way when being built.
--
Mitch Seff
Oceanside, N.Y.
75 TR6 SC
http://www.triumphowners.com/384
|