underbody engine cover
#1
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Is it recommended to remove the cover under the engine ?I have heard both pros and cons!thanks I'm a new member trying to get started w/everybody!
#3
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I have always been worried about something bounching up and hitting the engine.Like a rock into an oil return tube.What about trimming it down and just exposing the exhaust system?That should allow a fair amound of heat out.
Jeff 1990 C2 Coupe White/Burgundy
Jeff 1990 C2 Coupe White/Burgundy
#5
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Last week I ran my undertray on my race car during the weekend of racing at California Speedway which is a big track (=fast). With 70 degree air temps (likely much warmer on the pavement of the track) the engine oil temps were fine even during a longer 30 minute sprint race, and I was driving the crap out of the car. It never felt better going 145 mph through turns 1 and 2 (better aero stability, maybe?)! Next time I'll try even faster!!! ![EEK!](https://rennlist.com/forums/images/smilies/eek.gif)
I'm one of the pro-undertray folks: better aerodynamics & protection, vs. the often claimed but unproven link of the undertray causing heat damage to the engine. You'd think that by the time the 993 came out Porsche would get rid of it, if it was truly a destructive piece. But that's my opinion!
Fabulous car, and welcome.
![EEK!](https://rennlist.com/forums/images/smilies/eek.gif)
I'm one of the pro-undertray folks: better aerodynamics & protection, vs. the often claimed but unproven link of the undertray causing heat damage to the engine. You'd think that by the time the 993 came out Porsche would get rid of it, if it was truly a destructive piece. But that's my opinion!
Fabulous car, and welcome.
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
#6
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Mike, I really like that color!
Saw another member here (think he is in France) with the same color AFTER I bought mine. My next one will be that green.
Very nice car. Did you add the tail?
Oh, and there are lot's of posts regarding that undertray. Some entertaining reading if you get a couple of hours to search the forum and read the posts. Quite the debate. Here's one: https://rennlist.com/forums/showthre...ferrerid=35947
Welcome!
Saw another member here (think he is in France) with the same color AFTER I bought mine. My next one will be that green.
Very nice car. Did you add the tail?
Oh, and there are lot's of posts regarding that undertray. Some entertaining reading if you get a couple of hours to search the forum and read the posts. Quite the debate. Here's one: https://rennlist.com/forums/showthre...ferrerid=35947
Welcome!
#7
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The previos owner added the TechArt biplane spoiler.The color is Oak green metallic. Thanks, Does anyone know how to become a member instead of a user,not sure? Thanks,
Mike Lowry.
Mike Lowry.
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#10
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911s from 89 on back never had and undertray, so if rocks or junk bouncing up into the engine compartment was going to be a problem I think many 911 owners would know about that. I have always heard that the engine tray was for noise requirment issues in certain countries and that it was on all cars because they facotry was building one model for the world at that time.
Ditto biere: if the factory race cars did not use the tray then it must not have been an aerodynamic benefit.
Ditto biere: if the factory race cars did not use the tray then it must not have been an aerodynamic benefit.
#11
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Originally Posted by bgiere
964 and 993 cup cars did not have the undertray. i would think if it was an aero advantage they would have left them on.
...and without airjacks in the 90's (at least on the cup cars), it's a pain to jack a car with that tray on.
#12
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Originally Posted by Marc Shaw
Try here.
The cost is small, the benefits are immense.![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
Car looks great - is that a TechArt front spoiler?
Marc
The cost is small, the benefits are immense.
![Wink](https://rennlist.com/forums/images/smilies/wink.gif)
Car looks great - is that a TechArt front spoiler?
Marc
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#15
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Originally Posted by garrett376
Last week I ran my undertray on my race car during the weekend of racing at California Speedway which is a big track (=fast). With 70 degree air temps (likely much warmer on the pavement of the track) the engine oil temps were fine even during a longer 30 minute sprint race, and I was driving the crap out of the car.