Anyone know the base circle of a b1?
TECH Fanatic
Joined: Nov 2001
Posts: 1,975
Likes: 2
From: SW Florida
Re: Anyone know the base circle of a b1? Your stock cam has a base circle of 1.552” across the lobe. That is actually 0.776” centerline to heel (1/2 that distance).
When you measure your B1 cam across the lobe, remember, you will have to cut that distance in half and then compare it to the 0.776" number.
I will bet that the B1 is about .025" (25 thousands) less than stock.
If so, that would require .025" longer pushrods. However, they are sold in 50 thousands increments, so you might as well keep your stock rods.
It will be interesting to see what you come up with.
Ron,
When you measure your B1 cam across the lobe, remember, you will have to cut that distance in half and then compare it to the 0.776" number.
I will bet that the B1 is about .025" (25 thousands) less than stock.
If so, that would require .025" longer pushrods. However, they are sold in 50 thousands increments, so you might as well keep your stock rods.
It will be interesting to see what you come up with.
Ron,
TECH Junkie
Joined: Nov 2001
Posts: 3,604
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From: Los Angeles
Re: Anyone know the base circle of a b1? I'm gonna make a random off the wall guess and say it'll be 1.495 <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
For what its worth blake, I use that cam with my stock heads and stock length pushrods just fine, as do many others.
For what its worth blake, I use that cam with my stock heads and stock length pushrods just fine, as do many others.
TECH Fanatic
Joined: Nov 2001
Posts: 1,975
Likes: 2
From: SW Florida
Re: Anyone know the base circle of a b1? Well, I say you will measure 1.502" accross the lobe. That is .050" less than stock... 1/2 that distance would be .751" (centerline to lobe heal), >> and that is .025" less than the stock .776" centerline to heal.
<img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
<img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
