Subject	I haven't read through all the replies, and frankly Dr. Kuah
Posted by	Kenny on February 05, 2008 at 9:22 PM
	This message has been viewed 169 times.
In Reply To	stupid question: why design a new oil pan for the Z32 posted by The Devils Z on February 05, 2008 at 06:49 PM
Message	would be able to speak to this much better than I'm about to, but I'll give it a shot here. Under high-G situations, the oil pickup will no longer be submersed in oil. As revs increase under acceleration, the pickup is no longer primed, and oil pressure can drop dangerously low as the pickup is starved. Because of this cavitation, a situation develops where the pickup is no longer supplying sufficient oil to keep pressure up to an optimal level. This vulnerability can be mitigated by an oil pan with a modified geometry that in turn keeps the oil pickup submersed full-time. This is accomplished with baffling, windage trays, and other things I have a limited understanding of. Additionally, a larger oil pan allows for better cooling of the engine/turbos especially when combined with an oil cooler. Larger volumes of oil also mean the oil lasts longer as it is cycled through the system less and endures less wear and tear. Dr. Kuah has posted this information in the past along with some great charts showing his oil pressure read-outs from his road-coursing experience. I'm sure either he, or someone equally qualified will jump in and shore up any glaring inconsistencies here - but this should cover the basic idea. Recursively Yours, Kenny... PETZ Member #5 You guys rock socks. (Click for pie-chart) Computer Science is no more about computers than astronomy is about telescopes. - EW Dijkstra
Follow Ups	stupid question: why design a new oil pan for the Z32 - The Devils Z 18:49:36 02/05/08 Have you looked under the car lately - Broke_as_**** 19:01:30 02/05/08 an extra quart is pretty significant IMHO. If you don't - The Devils Z 19:09:31 02/05/08 The problem is worst for a street car - RSR 19:44:04 02/05/08 does the SZ pan extend pass the cross member ? (n/m) - The Devils Z 19:52:00 02/05/08 No. Uses stock pick up tube length. The oil pan is - AZHeat 20:05:38 02/05/08 You mean yours is bigger sideways like their pan. (n/m) - Dustin 21:16:19 02/05/08 If you are implying that my pan is a copy then you - AZHeat 21:33:25 02/05/08 last time I checked ours had 3 trap doors. (n/m) - Seb (specialty-Z) 22:27:24 02/05/08 ouch (n/m) - BlackTT91 23:01:13 02/05/08 you mean his has 3 doors like yours (n/m) - zgene4 23:03:36 02/05/08 In different locations. Oil pan kick outs are different (n/m) - AZHeat 23:25:03 02/05/08 lolz. I am sick and that made me laugh. +1 (n/m) - TyreeZtt (SeKy) 02:15:26 02/06/08 Not on website? - Claymen 03:36:38 02/06/08 2nd, would like more info on the pan (n/m) - Furb (NoVa) 08:34:21 02/06/08 no, nothing on the site about it. - Seb (specialty-Z) 10:17:04 02/06/08 SZ secret? (n/m) - AZHeat 10:23:25 02/06/08 Tall speed bumps already scrape with just Eibachs - SeedyROM 19:08:26 02/05/08 really ??? I don't scrape..but I agree if clearance is - The Devils Z 19:12:00 02/05/08 Maybe I have some unlucky speedbumps out here - SeedyROM 19:45:05 02/05/08 I've scraped test pipes from speed bumps. (n/m) - AZHeat 20:11:31 02/05/08 Yeah, same here unfortunately. (n/m) - SeedyROM 20:25:54 02/05/08 No scraping here either...maybe the 18 inchers add height..? - racer2fst 19:49:44 02/05/08 They probably do - Broke_as_**** 20:27:54 02/05/08 Most lower their cars. Also your pick up tube would - AZHeat 20:09:08 02/05/08 I wasn't at the time but I have been thinking about it - The Devils Z 20:16:28 02/05/08 if you have oilgetting on your tires due to a relocation - Guapo 20:18:31 02/05/08 that's if the reloction is improperly installed. (n/m) - AZHeat 20:32:04 02/05/08 not really. If you get oil on your tires from a relocated - Guapo 20:39:39 02/05/08 You won't get any oil on tires if you installed - AZHeat 20:45:52 02/05/08 right (n/m) - Guapo 20:47:54 02/05/08 What were your impression of the SZ oil pan? I talked - AZHeat 21:03:54 02/05/08 I don't know why he'd say that. There were a couple - Guapo 23:43:06 02/05/08 lets assume that I improperly mount the filter ..I don't - The Devils Z 21:45:22 02/05/08 Let's assume you improperly mount your fuel lines - AZHeat 21:48:48 02/05/08 I'm not debating this with you and I believe that when - The Devils Z 21:59:27 02/05/08 I am using quality commerical grade fittings and lines. - AZHeat 22:15:21 02/05/08 sounds like you have it covered :) (n/m) - The Devils Z 22:22:25 02/05/08 Oil filter will be behind the fender lining cover also. - AZHeat 22:33:50 02/05/08 Why would the pick up tube need to be longer? (n/m) - SactoTodd 20:20:49 02/05/08 so it reaches the bottom of the pan (n/m) - zboost(NoVA) 20:24:14 02/05/08 oops, misread that. (n/m) - SactoTodd 20:26:45 02/05/08 Our pan does not have a flat mounting face like the 350Z. (n/m) - Bernie (NoVA) 19:45:06 02/05/08 imagine a contoured spacer then (n/m) - gt300zxtt 20:58:43 02/05/08 You never want to have oil above the top baffle plate. - AZHeat 21:24:42 02/05/08 Imagine contoured oil leaks & a nightmare to seal. (n/m) - Bernie (NoVA) 01:35:24 02/06/08 Mine is stock height, 6+ quarts and has 3 trap doors - AZHeat 19:58:38 02/05/08 custom made or purchased? - Rickytl (ma) 05:51:25 02/06/08 WOW! thanks Dee.... (n/m) - Halo Z 20:07:15 02/05/08 I haven't read through all the replies, and frankly Dr. Kuah - Kenny 21:22:49 02/05/08 thanks Kenny 4the cliffnotes.. all I wanted was the basics.. (n/m) - The Devils Z 21:50:51 02/05/08 In theory - kuah@splparts.com 08:35:06 02/06/08 any interest in a dry sump? - z324u 08:37:46 02/06/08 They're very nice, but costly, and take up space. (n/m) - RSR 09:45:47 02/06/08 can the high cornering issue be resolved... - apudapus 09:04:45 02/06/08 How many baffled Z32 pans have you seen? (n/m) - AZHeat 09:15:44 02/06/08 Here is something interesting I observed in with my pan - AZHeat 08:41:04 02/06/08 Re: Here is something interesting I observed in with my pan - kuah@splparts.com 08:54:36 02/06/08 Only one will be forced shut the other will be - AZHeat 09:12:31 02/06/08 In the end, it just boils down to - kuah@splparts.com 09:56:02 02/06/08 Yup, what is your best alternative? Dry sump? - AZHeat 10:27:13 02/06/08 There is no guarantee your oil pan will be better than stock - kuah@splparts.com 10:45:21 02/06/08 Yes, hard data trumps all. At least with my pan - AZHeat 11:21:18 02/06/08 it's funny how in the same post - ZEngineer 11:51:08 02/06/08 Re: it's funny how in the same post - Kenny 11:55:50 02/06/08 As far as your concerned - AZHeat 13:08:58 02/06/08 We can certainly agree on that. (n/m) - Kenny 14:23:36 02/06/08 I have supported evidence that I didn't reveal here. - AZHeat 13:03:37 02/06/08 it's not evidence until it has gone through public scrutiny (n/m) - ZEngineer 16:28:33 02/06/08 I don't consider you a real engineer or part of the public. (n/m) - AZHeat 18:44:21 02/06/08 dodging questions, then initiating personal attacks. - ZEngineer 21:52:38 02/06/08 I answered all questions. What do you want from me? (n/m) - AZHeat 08:02:08 02/07/08 "I have supported evidence that I didn't reveal" - ZEngineer 11:19:19 02/07/08 That's a statement not a question. Do you know the - AZHeat 14:18:21 02/07/08 Side note question...what is the PhD in? just wondering (n/m) - ZiNnYc 10:55:45 02/06/08 Internet flame warfare. That's a joke. (n/m) - RSR 11:26:53 02/06/08 Dry sump, FTW. (n/m) - Ash's Z 10:08:34 02/06/08 this place even makes a pan for the vg30 - z324u 10:26:29 02/06/08 Yeah, it's simple. (n/m) - RSR 11:25:50 02/06/08
Post a Followup	You cannot reply to this message because you are not logged in.