B-Series Cam Guide

#20957 - 12/27/02 01:49 PM Re: B-Series Cam Guide
samkarp samkarp Post Master Sr Registered: 02/11/00 Posts: 5807 Loc: Milwaukee WI	Eric, I answered your questions via phone but will post anyway. Civic Type-R And Integra Type-R(Integra Type R 2000/01 Spec) measured at 1mm of lift Int-243 dur. / 11.5mm lift Exh-235 dur. / 10.5mm lift Skunk2 Stage 2 measured at 1mm of lift Int-266 dur. / 12.3mm lift Exh-262 dur. / 11.8mm lift Civic Type-R And Integra Type-R(Integra Type R 2000/01 Spec) measured at 0mm of lift Int-278 dur. / 11.5mm lift Exh-280 dur. / 10.5mm lift Toda Spec B measured at 0mm of lift. Int-295 dur. / 12.0mm lift Exh-285 dur. / 12.0mm lift One thing that is not compared is the Primary and Secondary lobes. TODA has traditionally used much larger Primary and Secondary lobes with their Spec B and Spec C over any other cam producer. These lobes provide larger off-VTEC gains. Skunk2, JUN, certain Crower cams have OEM or similar to OEM primary and seconday lobes and dont offer the midrange power of the TODA B and C. Now for the real-world power gains.........Well TODA will give lots of midrange power and not so great top-end power. Although the specs are different, TODA B's give just a little more top-end than a TODA A. In a standard B16A2 they will gain around 25whp over the current set-up if the header is good and tuning is good. Add things like an ITR Intake Manifold, bigger TB, test-pipe, large exhaust, etc and the gains will be a little higher. Skunk2 Stage 2's will offer much less midrange than the TODA B's but they are much more aggressive on the top-end. They offer tons of duration on both cams and good lift as well(sounds like JUN ). These cams will usually net around a 30-35whp peak gain with the almost-needed ITR Intake Manifold, large TB, etc. I like both. They are my favorite two cams to be honest. However, I am a sucker for midrange power. I am an autocrosser who drives his car daily and was always wanting more midrange out of my B16A2. That is why I am more of a TODA fan. Plus in the days of JUN and TODA you had to choose one side or the other!! Jerry will probaly favor a set of Skunk2's over TODA's. The Skunk2 Stage 3's are a very nice road race cam. They use a very low VTEC cross-over(compared to a TODA B or C!!) and have the most top-end power. Talented drivers that can keep the motor over 6500rpms at all times will like the Skunk 2 Stage 3's. I am an autocrosser and would like to ride 2nd gear all the way if I could, therefore I like a little midrange. TODA C's are nutty on valvetrain and fuel so the B's are my favorite cam. I have told a ton of open-track day guys that Stage 2's(street) or Stage 3's(trailor) are the way to go. I also tell the autocrossers that Toda B's(street) or C's(trailor) is the way to go. Now with the TODA/Ericks Spec D's out....who knows. Thats a lot of stress on the valvetrain though! The D's(if I remember) are like a B/C off-VTEC and a Stage 3 on!!! Thats nutty. The choice is yours(although you already made it) but from what you have told me, you want the midrage and TODA B is the way to go. _________________________ ~Sam Karp~ SCCA-Milwaukee "Autocrossers always make good road racers, but road racers do not always make good autocrossers."-T.C. Kline
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