 Carb info, Trying to jet my new engine |
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| Red-Beard |
 Sep 28 2004, 10:17 PM
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"Ya canna change the laws of Physics"  Group: Benefactors Posts: 1,124 Joined: 11-February 03 From: Houston, TX Member No.: 288 Region Association: None   |
The Blonds engine is this:
34mm Vent, 145 Mains, 180 Airs, 60 Idles, F3 ET The engine is 2.7l built with 2.2l heads modified to improve airflow, RS spec P&C, MFI S cams (the real "S", not the CIS "S"), Bosche "S" Mech adv distributor with 7200 rpm rotor. The engine seems to be running out of breath at 6000 rpm. Using the charts from "Weber Tech Manual" by Bob Tomlinson (Page 54), if I want to run up to 7200 rpm, I need 40mm vents. Others have suggested that I chart the max HP rpm, which is about 6200-6500rpm. Even with this, it seems I need 36-38 vents. What do you use as a reference for setting up carbs, or at least a starting point? BTW, the "equivalent" 4 cylinder engine would be 1800cc, long stroke, making about 140 hp at 6500 rpm. James |
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Posts in this topic
Red-Beard Carb info Sep 28 2004, 10:17 PM
john rogers While not very scientific, the vintage 2.0l cars t... Sep 28 2004, 10:31 PM Jake Raby What vents do you have now???
I would say that as... Sep 29 2004, 09:10 AM ! Same question but different... :wacko:
2.2 with ... Sep 29 2004, 09:19 AM
Howard R James,
My engine (2.7) has exactly the same carb ... Sep 29 2004, 10:54 AM  |
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