Subject	Helical is great for noise
Posted by	Zvil (FL) on May 04, 2014 at 6:56 PM
	This message has been viewed 315 times.
In Reply To	Why not hellical dog engagement gears? posted by puchy on May 04, 2014 at 05:53 PM
Message	But if you're going to have the tranny built it's most likely because racecar. Helical gears cause lateral load which thrusts their respective shafts opposite/toward each other. This thrust causes a side load on the bearings and gears. That side load causes parasitic loss and heat. I'm willing to bet drive train loss on a straight cut transmission is probably 1/3 less total drivetrain loss than helical. Plus you get that sweet gear whine :) ____________________________________________________ "The dreaded 2nd windshiled wiper swipe when you turn it off its almost like tis showing you that it's boss, and it doesn't have to stop when you tell it to :("-College Boy (discussion on ptu relocation) "No good reason to put it there anyway. -Bernie (NoVA) False -vorpalZ False. -Bernie (NoVA) You're correct, there are 3 good reasons -vorpalZ False. -Bernie (NoVA) Wow, right again, just remembered another, make that 4 -vorpalZ" XD
Follow Ups	boom - aliaZ 19:08:55 05/03/14 Nice.. - ztunerz 19:35:20 05/03/14 Mine won't go into reverse. (n/m) - Dustin 22:33:00 05/03/14 no reverse may be easy - SeanK (StL) 10:50:56 05/05/14 Thanks Sean. - Dustin 11:07:47 05/05/14 Normally just the aluminum shift fork... - Greg D. (Specialty-Z) 09:05:41 05/05/14 Great, so maybe all is not lost. Just have to rip it - ztunerz 11:15:02 05/05/14 Impressive. (n/m) - spicyZ 21:21:31 05/03/14 Re: boom - cygate 23:14:00 05/03/14 yes.... the counter shaft is 1 peice so just 3rd gear cannot - Zvil (FL) 00:03:25 05/04/14 Why not hellical dog engagement gears? - puchy 17:53:11 05/04/14 Helical is great for noise - Zvil (FL) 18:56:50 05/04/14 The whine would drive me crazy. but if it is a race only - puchy 23:01:27 05/04/14 Welllll - Zvil (FL) 05:25:56 05/05/14 Damn. What other clutch is a good option @ that power level? - bartz32tt 23:52:25 05/03/14 I think drag racing is going to be hard on the drivetrain - aliaZ 08:23:42 05/04/14 I know, just shocked - given the manner in which it failed. - bartz32tt 09:28:19 05/04/14 I had a SZ High-5 explode on me at the track only at ~400whp - sdhsbaseball 17:55:28 05/04/14 Re: I had a SZ High-5 explode on me at the track only at ~400whp - Greg D. (Specialty-Z) 09:58:40 05/05/14 South Bend Clutch.... - BOOZTD 3 23:16:41 05/04/14 That's a good endorsement. Can't seem to find it on Zspeed. - bartz32tt 09:36:48 05/05/14 Mine isn't listed - BOOZTD 3 15:08:26 05/05/14 RPS - Greg D. (Specialty-Z) 09:45:26 05/05/14 Thanks for clarifying.... - BOOZTD 3 13:51:51 05/05/14 +1 for SouthBend and Joe - FlawleZ (San Antonio) 22:11:42 05/05/14 High 5 Clutch - Greg D. (Specialty-Z) 09:40:12 05/05/14 I'm very happy with the hi-5. Another thing to consider - Turbodog (CT) 21:39:57 05/05/14 Can cooling have a positive effect? - Zvil (FL) 23:57:16 05/03/14 After a handful of track days mine wasn't shifting smooth - Turbodog (CT) 06:53:54 05/04/14 what fluid are you running? (n/m) - Attridge_300ZX 07:01:20 05/04/14 Redline MT90 (n/m) - Turbodog (CT) 12:56:50 05/04/14 sure it can - aliaZ 08:36:17 05/04/14 ding ding ding (n/m) - Greg D. (Specialty-Z) 10:19:32 05/05/14 Agreed !!! For guys that road race it's best to build some - ztunerz 11:25:48 05/05/14 I would be interested to see what the needle bearings - HighPsi (NorCal) 10:19:20 05/04/14 I always found that over filling would lead to grinding of - sfarrah 11:04:48 05/04/14 I have mine overfilled to just below the middle of the fill - HighPsi (NorCal) 12:45:05 05/04/14 Overfilling does cause more difficult shifting... - Greg D. (Specialty-Z) 10:06:15 05/05/14 same thing happened to me on road course...boom! - ZonaZ 10:26:25 05/04/14 John was running a sprung hub Kevlar clutch..... - Greg D. (Specialty-Z) 14:59:17 05/05/14 maybe that's why my tranny started whining shortly... - arrowenterprises 14:20:51 05/04/14 High 5 has a lot of drivetrain noise transfer. May be normal - dvice 07:47:16 05/05/14 Aluminum flywheels, and solid hub disc's - Greg D. (Specialty-Z) 09:12:57 05/05/14 Noticed this too, kinda depends on dumb luck, some driveline - ztunerz 11:28:42 05/05/14 Has to do with how well the trans is set up..... - Greg D. (Specialty-Z) 11:52:54 05/05/14 are they still in spec? Or do the 98+ transmissions have a - aliaZ 16:15:55 05/05/14 I do not have the specs on the 98+ - Greg D. (Specialty-Z) 20:37:39 05/06/14 thanks - aliaZ 15:33:54 05/07/14 so you're saying all this time i thought my tranny was going - arrowenterprises 21:25:22 05/05/14 Looked back, I emailed the same info to you June 2012 (n/m) - Greg D. (Specialty-Z) 20:35:26 05/06/14 Re: Hi Don........... - Greg D. (Specialty-Z) 09:00:30 05/05/14 Hi Greg! - aliaZ 10:24:33 05/05/14
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