Subject	How does mass per valve come into play?
Posted by	SactoTodd on December 19, 2004 at 9:56 PM
	This message has been viewed 32 times.
In Reply To	less reciprocating mass per valve posted by PhishZ on December 19, 2004 at 09:47 PM
Message	With a dohc layout you'll have more cam weight, and more cam bearing surface. I'd guess with a dohc you have less load per bearing, so the bearing surfaces can be lower. Is that true? More friction with more bearings? The valve timing issue I can agree with, along with the advantage of being able to advance/retard the intake and exhuast valve timing independantly of one another. IMHO -Todd
Follow Ups	dual overhead cam? - 300zer 21:24:05 12/19/04 you have 4 = quad (n/m) - Zluster(DFW) 21:25:17 12/19/04 so.. - 300zer 21:30:28 12/19/04 You have a dual DOHC, v6 (n/m) - KaZ (VaBch) 21:42:08 12/19/04 lol (n/m) - BradZ (FL) 21:28:30 12/19/04 DOHC=2 cams above the cylinder - BOOZTD 3 21:29:25 12/19/04 so the prelude is 2 cam and my z is 4 cam? (n/m) - 300zer 21:32:51 12/19/04 you have 2 cams for each side of the V(head) - Zluster(DFW) 21:36:14 12/19/04 yes 2 for each side of the block.. (n/m) - mxsprocket1 21:36:54 12/19/04 lol (n/m) - 90BlkZ18 21:42:55 12/19/04 the preludes 4 cylinders are lined up in one row - BoostLesZ 11:29:53 12/20/04 how is it more efficient? (n/m) - SactoTodd 21:43:12 12/19/04 less reciprocating mass per valve - PhishZ 21:47:53 12/19/04 How does mass per valve come into play? - SactoTodd 21:56:12 12/19/04 Not talking about friction - PhishZ 22:11:41 12/19/04 you even have your own "vtec" (n/m) - Z_animal 22:02:55 12/19/04 what? (n/m) - 300zer 22:17:56 12/19/04 You're both idiots. (n/m) - Tissan© 22:19:20 12/19/04 who? (n/m) - Kurt(Miami) 22:29:09 12/19/04 Z has variable valve timing - PhishZ 22:30:14 12/19/04 He wont understand any of that, but +2 for effort (n/m) - Tissan© 22:34:54 12/19/04 lol (n/m) - PhishZ 22:37:40 12/19/04 Honda's vtec couldn't move the cams until only recently - jkperformance 23:01:07 12/19/04 gotta love it! nice post dude (n/m) - 90BlkZ18 23:04:14 12/19/04 nice info - PhishZ 23:06:54 12/19/04 they really do...i just need to get around to building up - jkperformance 23:14:10 12/19/04 Good post, one thing to note... - BOOZTD 3 23:24:18 12/19/04 or if the engine isn't warm... (n/m) - xZeler8 02:38:29 12/20/04 i knew i'd forget to mention one... oops, thanks though! (n/m) - jkperformance 09:19:30 12/20/04 no problem man! (n/m) - BOOZTD 3 05:47:23 12/21/04 sounds like two ricer boys at it as usual - College Boy 22:24:26 12/19/04 Had a japenese kid tell me that one turbo owns all - Tissan© 22:28:57 12/19/04 nice! haha (n/m) - College Boy 22:43:46 12/19/04 he's a complete ricer i can't stand ricers (n/m) - 300zer 22:41:22 12/19/04 Re: he's a complete ricer i can't stand ricers - 300zer 22:43:26 12/19/04 lol (n/m) - College Boy 22:44:06 12/19/04 find new friends - PhishZ 22:50:27 12/19/04 same here (n/m) - College Boy 23:00:00 12/19/04 not much rice here - 90BlkZ18 23:08:49 12/19/04 domestic guys can be annoying too - PhishZ 23:33:00 12/19/04 Yes. Move along. (n/m) - YugoBernie (NoVA) 23:03:32 12/19/04 yes. + RWD>FWD. (n/m) - BoostLesZ 11:08:21 12/20/04 Re: dual overhead cam? - Z32_ 14:57:26 12/20/04
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