ls vtec cam selection?
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Honda-Tech Member
Joined: Apr 2007
Posts: 87
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From: east bridgewater, mass, usa
im just about to finish my ls vtec set up its got 82mm nippon racing pistons on filled ls rods with a itr oil pump amd a moroso oil pan its got a fully built gsr head with blackwork racing valve springs retainers and flat faced valves also got a skunk2 intake manifold with a 68mm tb and a hytech replica header and a p28 with hondata s300 in it.My question is i got crower stage 3 cams and was wonder if i should get rid of them and get skunk2 pro 2 im just worried about valve to piston contact with that big of cam and also was worried about my redline i was think maybe like 8200 but any answers would be awesome thanks
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Thread Starter
Honda-Tech Member
Joined: Apr 2007
Posts: 87
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From: east bridgewater, mass, usa
ya but everythings already assembled and just waithin on me to get new cams or try those out has anyone used crower cams before i only seen stuff about skunk2 or toda really nothing about crower
Thread Starter
Honda-Tech Member
Joined: Apr 2007
Posts: 87
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From: east bridgewater, mass, usa
tru dat i was just thing about my mid range power cause i know the cam profile is frickin huge and was uncertain about makin the low end power
there's a few 82mm motors running pro2's with great results, hell even 81mm builds running pro2's show great gains.. just depends on what you want..
they also like high compression, and to rev high, hes not going to be able to rev them out with ls rods and bolts.
Compression is one tenth of the equation for power, Most people can run pro2's on stock gsr or b16 compression, support mods such as manifold, header/exhaust actually play a bigger role on these cams then compression, they require alot of breathing mods.
Yes, they like to rev and require reving higher then the oem redline but you'll make power within the rev range, then you would if you went with say a itr cam.. the low end on the pro2's is dumb retarded..
MOST, pro2 builds dont rev past 9k..
Also, the common misconception with the "ls" motor is its weak, this isn't the case..
The only weaklink in the ls motor is the rodbolts, replacing the rodbolts with arp / GE 9mm rod bolts will make them just as strong as anything else.
The LS crank is also the strongest honda crank made in b series.
An example of one build is D-Rob's fathers b20vtec running a stock b20 bottem end, (ls/b20 bottem ends are the same)
You can rev as high as you need and where your motor makes power, if you choose a cam that only needs you to rev to 8500, do so, if your cam requires you to rev to 9 k, you can do that as well, if the supporting mods are in place.


