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Joined: Nov 2005
Posts: 193
Contributor
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OP
Contributor
Joined: Nov 2005
Posts: 193 |
looking for a new cam for my 250. It's in a '52 Chev hard top. the motor is 30 over with larger valves, lumps, offy intake running an Edelbrock 500 cfm. Tranny is a T-5. I believe the dif is a 3.73 My present cam does not have the low end grunt that I need for pulling my 19' trailer. It has lots of mid range and would rev out higher but I believe that it is limited by the Offy intake. My present cam is a Shadbolt but I have no specs for it. I need good midrange and better low end torque. Any suggestions?
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Joined: Jan 2005
Posts: 2,123 Likes: 3
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Joined: Jan 2005
Posts: 2,123 Likes: 3 |
What static CR? What's your cranking compression? What valve lash?
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Joined: Sep 2004
Posts: 5,839 Likes: 1
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Joined: Sep 2004
Posts: 5,839 Likes: 1 |
It would be nice to know your cams specs you are running now.
Hyd cam, correct?
Does your engine run rough as in a lumpy or lopey idle camshaft? What is the vacuum it produces when idleing?
You can try a set of Rhoads lifters for the time being. Should help w/low end,more vacuum. Just saying,instead of a full blown cam swap.
This will help unless your camshaft is just to radical for the street type of cam. Example .550 lift 220+ degrees duration @ .050 on a 106 lobe center.
MBHD
12 port SDS EFI
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Joined: Apr 2004
Posts: 3,556 Likes: 35
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Joined: Apr 2004
Posts: 3,556 Likes: 35 |
You can get lift measurements ,pretty easily. Duration can also be measured without pulling the cam.
Without knowing your cam specs, but hearing what you want a RV cam will better fit your needs. Lookup a compcams 252 high energy. It should be the ticket. Tom
Inliner Member 1716 65 Chevelle Wagon and 41 Hudson Pickup Information and parts www.12bolt.com
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