Engine tray and high speed stability.
10-17-2006, 03:40 PM
#46
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Originally Posted by ZombiePorsche44
I would expect nothing less from the "King of Cool".................. 
ZP44
ZP44
(did you watch Deadwood?)Look ZP44, pop corn was a joke since so many people started to "eat" it watching this thread.
My point however was and is, when I've driven 150+ mph with my 993 (last time was at Homestead race track btw), my car felt 100% stable with absolutely no uneveness, nervousness or anything to that nature.
I don't think tray has anything to do with car being stable or unstable. As you said, most likely it's your suspension what causes the un-satbleness (is that a word?).
As already many many times noted before, factory race cars didn't have this and if it helped with cooling, making car more stable etc. I'm sure Porsche would've had it in their race cars.
10-17-2006, 04:09 PM
#47
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Originally Posted by LAT
I have the Aerokit 1A on my cab with M030 set at Euro ride height, no tray and zero stability issues...just wondering is all..
10-18-2006, 01:11 PM
#49
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Originally Posted by Bull
Excellent! Will do when I get back there. Used to have a Gf in San Diego and it was a second home 15 years ago.
The water days were long ago after returning from an all expense paid trip to SE Asia. I was living in Seattle, and we mostly ran 5 Liter Hydros, highly modified with Chevys on Methanol...until we got hold of a Gurney/Weslake Eagle 289....Ron Jones hulls. When I want to feel really old, I remember that Chip Hannauer was in school, running a 145 Cu. In. Class boat with his Father! ....or working on Jim Clapps crew with the early Chopper engines.
THEN, we were nuts!
Back to the topic at hand.......should we do a poll on how many Db quieter the top speed runs are with the tray on vs. off?????
The water days were long ago after returning from an all expense paid trip to SE Asia. I was living in Seattle, and we mostly ran 5 Liter Hydros, highly modified with Chevys on Methanol...until we got hold of a Gurney/Weslake Eagle 289....Ron Jones hulls. When I want to feel really old, I remember that Chip Hannauer was in school, running a 145 Cu. In. Class boat with his Father!
....or working on Jim Clapps crew with the early Chopper engines.THEN, we were nuts!
Back to the topic at hand.......should we do a poll on how many Db quieter the top speed runs are with the tray on vs. off?????
I still miss the Rolls & Allison engined boats....ah the days of Thunder....I digress.
As far as the topic at hand.....who are we going to get to stand by the road with a DB meter while we blow by at 150+?????..........LOl
ZP44
10-18-2006, 04:20 PM
#50
I suspect that any high speed instability issues are more relatyed to ride height and suspension than, the tray or lack thereof
Get a good suspension under the car, get it low, and it will be fine
the aero package certainly doesn't hurt either
By the way you all do know that no Cup or factory race car ever used the engine tray?
Get a good suspension under the car, get it low, and it will be fine
the aero package certainly doesn't hurt either
By the way you all do know that no Cup or factory race car ever used the engine tray?
10-18-2006, 04:34 PM
#51
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Originally Posted by Bill Verburg
By the way you all do know that no Cup or factory race car ever used the engine tray?
10-18-2006, 05:35 PM
#52
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Originally Posted by Greg Fishman
Lots of 993's on the track at Daytona this past weekend. Don't think I saw a single one of them with a rear tray on them. Most were at least doing 145mph.
10-18-2006, 05:56 PM
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While indicating 163 at an undisclosed location in Idaho, the car felt pretty good. It was the 4 year old P-Zeros which made me nervous. The car got a lot better with Michelins. Would it have been better with an undertray? damned if I know. I never owned anything else that would get to 160.
When I bought my stock used 993 in '99 the local dealer told me to put a tray on it. I didn't bother. Six months ago when the soon-to-be new owner had a PPI done at the same dealership, they said don't put a tray on it. I doubt even Porsche themselves could provide definitive answers.
When I bought my stock used 993 in '99 the local dealer told me to put a tray on it. I didn't bother. Six months ago when the soon-to-be new owner had a PPI done at the same dealership, they said don't put a tray on it. I doubt even Porsche themselves could provide definitive answers.
10-18-2006, 05:58 PM
#55
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Originally Posted by Fill
just for fun, I put the tray back on your 993!!!!!!
LOL! Actually I am trayless, looks like the transmission undertray is gone also. You must have gone so fast at the track that they blew right off!
10-18-2006, 06:07 PM
#57
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Originally Posted by Greg Fishman
LOL! Actually I am trayless, looks like the transmission undertray is gone also. You must have gone so fast at the track that they blew right off!
less weight!!!!!
10-20-2006, 03:06 PM
#58
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Originally Posted by ZombiePorsche44
Man you are old if you remember Chip as a youngster......But he sure could drive an unlimited......
I still miss the Rolls & Allison engined boats....ah the days of Thunder....I digress.
As far as the topic at hand.....who are we going to get to stand by the road with a DB meter while we blow by at 150+?????..........LOl
ZP44
I still miss the Rolls & Allison engined boats....ah the days of Thunder....I digress.
As far as the topic at hand.....who are we going to get to stand by the road with a DB meter while we blow by at 150+?????..........LOl
ZP44
I think there are lots of candidates here for meter reader.....
