admin plz move if you feel it necessary
A lot of information is floating around on these boards about cams. Sure, we all hear about the Crower 403s…alot. There are also some companies out there who do not really “expose” their information as we’d like them to. This chart is to help some of our members compare cams without having to search hundreds of websites. As for where to buy them…I’m not too aware of MANY places…after searching for “cams” in the search option I realized Summit does along w/ some independent online companies, but there aren’t much. The main reason I’m trying to get this going is because I myself am in search of cams. A few of my choices were the Crower 402s, the jg 301s, the Gude stage Is and the Crane stage Is. I want to keep it light (not requiring valvetrain upgrades) and ya know, I’m only expecting 15 or so whp tuned, nothing spectacular. So…without further babbling, here comes the chart…
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Stock B18B Cams
Duration: 220 / 222
Lift: .395 / .380 -
Gude Stage I (235235F)
Duration: 228/228
Lift: 0.41 / 0.41
RPM Range: idle (roughly 750 R.P.M.) to 7500 R.P.M.
Powerband: 3600 R.P.M. to 7500 R.P.M.
Springs/Retainers: NOT required -
Crane Cams Stage I (ACU-257-2S-11)
Duration: 257 / 263
Lift: .400 / .388
RPM Range: idle to 6500 R.P.M.
Powerband: mid R.P.M. to 6500 R.P.M.
Springs/Retainers: Works well with stock valvetrain, fresh valvesprings are recommended -
Crane Cams Stage II (ACU-261-2S-9)
Duration: 261 / 267
Lift: .400 / .388
RPM Range: 1000 R.P.M. to 7000 R.P.M.
Powerband: mid R.P.M. to 7000 R.P.M.
Springs/Retainers: Works well with stock valvetrain, fresh valvesprings are recommended -
Crower 402
Duration: 233 / 245
Lift: .414 / .399
RPM Range: idle to 7500 R.P.M.
Springs/Retainers: no kit recommended -
Crower 403
Duration: 243 / 246
Lift: .423 / .409
RPM Range: 1000 R.P.M. to 8000+ R.P.M.
Springs/Retainers: Crower recommends set 84162 which includes Crower’s dual springs and titanium retainers -
Toda A
Duration: 250 / 240
Lift: 11.6mm / 11.2mm
SPEC A 220 (6.0) - 290 (11.6) - 240 (9.0)
IN Type-R* $460
220 (5.5) - 280 (11.2) - 240 (8.5)
EX Type-R* $460 -
Jun Type 1
Duration: 265.3 / 268
Lift: 10.9mm / 10.0mm -
ITR
Duration: 240 / 235
Lift: 11.5mm / 10.5mm -
CTR
Duration: 243 / 235
Lift: 11.5mm / 10.5mm -
Colt Street Grind
Duration: ___________
Lift: _________
(someone wanna help fill that in? I know I’ve seen a lot of requests for those measurements, thnx) -
Toda B
SPEC B 250 (11.0) - 295 (12.0) - 250 (11.0)
IN TODA Valve Spring Kit $490
250 (11.0) - 285 (12.0) - 250 (11.0)
EX TODA Valve Spring Kit $490 -
Toda C
SPEC C 250 (11.0) - 295 (12.5) - 250 (11.0)
IN TODA Valve Spring Kit $550
250 (11.0) - 295 (12.5) - 250 (11.0)
EX TODA Valve Spring Kit $550 -
JG 301
274 deg duration intake
268 deg duration exhaust
.410’’ lift intake
.390’’ lift exhaust
Valve clearance .007 intake and .009 exhaust
…This chart is obviously not complete. I’m hoping more of you would be willing to throw in the specs that are listed up here. I know of the Colt Cams, JG Cams and the Comp Cams and cannot seem to find their specs. Also, places to purchase these cams would be VERY useful. Please do not type archive this until we have a larger sum of information posted up here and the page actually is useful. TIA.
Stew