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CBA you really are down on power. Years ago I had an SC and did a build with 964 cams, 9.5:1 compression pistons, SSI's and early muffler. Stock displacement, stock CIS. Put down an honest 200 at the wheels. You should be doing better than that with more compression, more displacement, and carbs.
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CBA, why did you use 964 cams with those pistons? Are those the CIS style pistons or the carb/EFI pistons?
You may have too high of dynamic compression with that little overlap. |
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Carb/ EFI compression pistons was too high at 10:2 For single plug I was instructed . |
CBA, If you compare the dynos I posted with yours which were all done on the same type of dyno (dyno Jet) you are down on power. If we take the 187HP made with a 3.0 and extrapolate to a 3.2 you would have 198HP. This is with stock CIS and Stock cams. Considering that most 3.2 Carrera motors (which are smaller then your 3.2) on a dynojet make in the area of 220-230HP with stock cams and 230+ with 964 cams you are missing a lot of power. Some dyno examples below
https://www.911chips.com/dyno.html I would think with carbs and your setup you should be in the 230-240HP at the wheels with a HP peak at 6300-6400 RPM. You will have to do some investigation to figure out where you are loosing power. Muffler, cam timing, A/F ration and ignition timing is where I would look. john |
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Yes, Peak power rpm and torque drop off are steeper than I would expect on both posted graphs. |
Franken CIS on 3.3SS
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