camgrinder |
10-27-2006 01:41 PM |
Wide LSA (106-108 Lobe Center Angles) is something I have tried over and over with Weber carbs. For some reason Webers like 98-102 angles.
The PMO carbs work with tight angles (100) and wide (108).
The nice part about is, if the customer is using a DC80 and wants a little more top end power, but the DC100 is too much, I can widen the DC80's out to 104 or 106 and it works. I cant do that with Weber carbs, I have tried.
I had a customer who races overseas. His car was chassis dynoed before each event and weight was added based on peak HP numbers. Going from the DC100-100 cams back to a DC80-106 lost him about 5 hp, and gained over 25 ft lbs at 5000 rpms. The car ended up lighter and faster off the corners and won more races.
Oh, and he shifted less each lap which helped.
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