| Re: Help me compare these two cams |
Subject: Re: Help me compare these two cams by BeachBum on 2009/9/25 20:35:02 Matatk, I like your rims.... can I ask where you got them ? Are those 16" or 17" ? Do you have other pictures I can see ? (Sorry, I do not mean to take your thread off-topic, feel free to PM if you wish) Back on the cams, I think with what you are trying to do with your TPI, either one will work, if I had to guess, I would say Cam # 1 would give you another 5-10 ftlbs of torque 4000 rpm and below, whereas cam # 2 would find you an extra 10 HP above 4000 rpm..... with 2 cams like that, there is almost always a crossover point.... the question is where in the rpm band it happens and then which torque curve helps your car accelerate to the speeds you desire. What is important as well is the converter/gearing information. Cam # 1 would probably work a little better with a stockish tight converter, whereas # 2 would benefit from a slightly looser converter and/or gearing. Although I personally think they would both be fine with a fairly tight converter. On the flipside cam # 2 might do better than we thing right off-idle because its a tad more agressive..... I would consider talking to compcams and getting their recommendation. As a matter of comparison, with a 120,000 mile 350 TPI motor with an Accell base, ported plenum and Accel runners, Dart heads and headers with a 3.07 gears and stock 85 converter I coerced 12.42 @ 108 mph out of it.....I think I was right around a 1.70 60 ft on that, but its been over 10 years since then and do not remember exactly. A converter a little more agressive and I probably could have gotten another tenth or two improvement. This was with the LPE 211 cam, which was 211/219 @ .050" - 112lsa - .533/.560 with 1.6's. This is just a matter of reference of the type of performance you could achieve out of a set-up like this. Just as a sidenote, the one thing that I have learned about this stuff, is that speed is addicting.... you'll build it as above, and then almost assuredly want more in a few short months... its not a bad idea to cam up for it now.... the 219 cam as others have mentioned would work well with this set-up too..... and if you ever decide you want more HP with a different intake, you'll already be cammed up for it. Good luck with whatever you choose ! |
