 What cam to use?, 2.2 six Track/DE car |
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| MikeSpraggi |
 Apr 11 2012, 12:47 AM
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#1
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Senior Member  Group: Members Posts: 781 Joined: 7-February 05 From: Silver Spring, Md Member No.: 3,570 Region Association: MidAtlantic Region  |
Question for those of you who have been down this road. I have a fresh 2.2 liter six in my track/DE car. I believe I have a cam issue which is another story.
Anyway, I'm thinking about Solex or GE 40 cams and would like hear experience speak. My engine is built on a 7R case, 2.2 L non-counter balanced crank, 84 mm JE P&C's with about 11.0 CR and stock T heads, valves, springs and porting. Reworked Zenith carbs with 32mm venturis and 150 main jets. Don't recall what the idle jets are. MSD 6AL with the MSD Blaster coil. Question is with this setup, would the Solex or GE40 cams be the better choice for the track? Obviously this is not an all out race engine as I do want some semblence of relative longevity. I do not want to go with an "S" cam as they would be too peaky for me. Thanks. |
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| Phoenix-MN |
Apr 11 2012, 04:51 AM
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Senior Member Group: Members Posts: 927 Joined: 23-January 04 From: ST. Bonifacius,MN Member No.: 1,590 |
My 911 engine is almost the same except it's 2.5L . I have the "SOLEX" grind and it works very well and is not peaky like the "S"
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| cambum4 |
Apr 17 2012, 03:17 PM
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#3
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Newbie Group: Members Posts: 16 Joined: 11-May 11 From: wv Member No.: 13,057 Region Association: None |
hows is the new track car coming?
Bill Smith |
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| larryM |
Apr 17 2012, 08:25 PM
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#4
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emoze Group: Members Posts: 891 Joined: 1-January 03 From: mid- California Member No.: 65 Region Association: Northern California 
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this is discussed ad infinitum on the pelican engine forums - just do a search there on cams -
many opinions there would suggest considering DRC DC30's as a good choice http://www.drcamshafts.com/ fwiw - John is kinda slow about delivering - so take that into consideration |
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| toolguy |
Apr 17 2012, 09:24 PM
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#5
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Senior Member Group: Members Posts: 1,267 Joined: 2-April 11 From: San Diego / El Cajon Member No.: 12,889 Region Association: Southern California
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I had a 2.0 six with e pistons and solex cams on T heads and valves. . . the solex cams come on around 3500 and pull hard to 7400 with stock valve springs and factory shim settings. . a little lumpy off idle . . it was a good time trial engine. . . IIRC, I ahd a 2.2 911T with E cams. . it was good from 3000 to almost 7000. . . . . . I just did my 2.0 six with E cams from DRC, they are a lot happier at lower RPMs. . Just remember to cut valve pockets for the higher lift and duration
But I got to ask about your carbs. . and jets. . . that sounds a little rich for a 2 liter. . . how does it run and what do the plugs look like ?? |
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