Subject	Restrictive systems achieve lower volumetric efficiency
Posted by	CaliguyPurdue on March 22, 2006 at 1:49 AM
	This message has been viewed 81 times.
In Reply To	sorry better question...what made his peak HP rpm slide up? (n/m) posted by LJZTT on March 21, 2006 at 11:21 PM
Message	as aerodynamic limits are approached. This curbs torque and thus lowers HP. Ash seems to have done such a great job improving the flow characteristics of his engine, past the 5252 rpm crossover point, that the hp continues to rise with increasing RPM. Had he not opened it up, he would have had larger pressure drops, resulting in lower charge densities, creating less torque, and thus less HP.
Follow Ups	AshsZ-II Ultimate Street Z: 666RWHP & 602RWTQ - Ash's Z 20:26:05 03/21/06 the new devil's z (n/m) - rufflez 20:28:37 03/21/06 killer numbers ASH! Nice torque. (n/m) - WAGGZ 20:35:16 03/21/06 ackk, three sixes in a row... I feel wierd even writing it.. (n/m) - Waco300zx 20:47:33 03/21/06 Very nice (n/m) - luke21 21:14:16 03/21/06 are you scared of ur right foot now - ARA300ZX 21:15:10 03/21/06 You and Dee should get an exorcism (n/m) - 300zib(NoVA) 21:16:00 03/21/06 Are you going to attempt to tip the 1k mark for rwhp? - upcominZ_2+2TT 21:17:32 03/21/06 AshsZ-II [Ultimate Street Z] - dummy76 21:22:04 03/21/06 I guess you missed the part where he takes it to the track (n/m) - red300zxtt 21:54:33 03/21/06 I think he was being sarcastic - 93silverTT 22:22:47 03/21/06 Thank you - dummy76 18:50:25 03/22/06 LMAO! - BradZ (FL) 22:02:10 03/21/06 My computer exploded after downloading the video. - TyreeZtt 21:22:28 03/21/06 which fuel pressure sender did you use? - J4Play 21:25:22 03/21/06 I dont know if the SBC-iD has inputs like the SBC-iC - Ash's Z 22:22:12 03/21/06 SBC-iD can take three 0-5v inputs, and display them. - J4Play 03:54:19 03/22/06 The timing belt is an amazing thing, isn't it? - Goose1451 21:43:40 03/21/06 The timing belt isn't handling all of that. - Marshall 23:08:23 03/21/06 Nice sounding Z. It sounds pretty grumpy!!! (n/m) - Shawn Lane(NO VA) 21:50:21 03/21/06 Very nice Ash! - BradZ (FL) 22:06:51 03/21/06 Very nice, bro! Now get some action vids for us ;) - TheTwinZ (Peru) 22:07:25 03/21/06 Ash.. Speaking of video's. Ive already talked to Russell of - Chase86 23:38:21 03/21/06 Nice to hear that. (n/m) - TheTwinZ (Peru) 00:17:23 03/22/06 wrong person.....BTW, is this supposed to be your sig?? - WAGGZ 01:09:43 03/22/06 Yes.. I keep on forgetting to fix it. (n/m) - Chase86 11:16:37 03/22/06 incredible numbers - Ballistic 22:27:18 03/21/06 nice. can you pull VTC back 500rpm? (n/m) - nixit 22:37:46 03/21/06 I should bump it up. Its at 7000RPM right now. (n/m) - Ash's Z 22:42:21 03/21/06 Cool. (n/m) - YugoBernie (NoVA) 22:45:56 03/21/06 dumb question maybe, but something I dont understand - LJZTT 22:50:58 03/21/06 HP= (tq x rpm)/5252 - Marshall 23:01:05 03/21/06 ok, what would be some determining factors for where the - LJZTT 23:13:41 03/21/06 sorry better question...what made his peak HP rpm slide up? (n/m) - LJZTT 23:21:18 03/21/06 As Marshall pointed out, HP is actually - SirpriZ 23:37:25 03/21/06 That's actually wrong. Torque drops off, - SirpriZ 13:34:02 03/22/06 Restrictive systems achieve lower volumetric efficiency - CaliguyPurdue 01:49:39 03/22/06 not really. - Marshall 06:30:52 03/22/06 is 5252 simply the magic # for our engines, or is it - LJZTT 15:32:43 03/22/06 All inclusive, not Z specific. (n/m) - Dark Diver 16:58:49 03/22/06 Look at aNY dyno, you'll see the HP and TQ curves cross at - Scotts94z32 18:23:26 03/22/06 Well done. (n/m) - SeedyROM 22:51:21 03/21/06 Nice numbers. (n/m) - WickedZX (NoVA) 22:56:11 03/21/06 evil, actually....lol (n/m) - LJZTT 22:57:36 03/21/06 nice! (n/m) - aliaZ 23:04:05 03/21/06 Ok ash...would there be any other parts you might change - Andrew(nj) 23:20:06 03/21/06 There is a list of plans...... (n/m) - Ash's Z 23:36:41 03/21/06 Nice numbers Ash. Looks like pretty good spool and - SirpriZ 23:22:30 03/21/06 Congrats Bro, glad to see all that hard work paying off (n/m) - jzee32tt 23:44:02 03/21/06 300hp by 4krpms with that top end.. very nice (n/m) - CarlCuro 23:47:34 03/21/06 ...and 400 lbftTQ at the same rpm....*drool* (n/m) - WAGGZ 01:01:27 03/22/06 Lovely powerband. (n/m) - Kenny 00:13:31 03/22/06 Nice ! (n/m) - The Devils Z 00:44:03 03/22/06 nice curves. Why not go with the RPS max 6-puck? - Spee 03:03:46 03/22/06 time for a carbon-carbon bud.. man up ;) (n/m) - Z32POWER.com 06:22:17 03/22/06 Nice (n/m) - Arnel@Z32racing.com 08:13:02 03/22/06 Congrats Ash. - eriksu9 09:32:10 03/22/06 It's not about the number --it's about the experience - The Devils Z 09:38:05 03/22/06 Damn Ash that's great. Now turn her back a tick. - 300zxquire 16:31:33 03/22/06
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