Aero tray under the engine compartment ripped by tire idiot
07-31-2013, 03:45 PM
#16
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The belly pan is pretty important for cooling while sitting in traffic with the AC going...
The primary effect is prevention of hot air recirculation. With no belly pan, hot air from the engine fans blows straight down out of the engine compartment, and is sucked back into the radiator. After a few minutes of recirculation, the overall temp of the air going thru the radiator can climb significantly.
The belly pan also forces increased air flow over the oil pan and exhaust system at highway speeds, and the two air guides blow cool air over the engine mounts, increasing their lifespan.
I have had gravel dislodge a belt, which dislodged another belt, so keeping debris out is another plus.
Not critical in most cases, but a very useful item to have on the car.
The primary effect is prevention of hot air recirculation. With no belly pan, hot air from the engine fans blows straight down out of the engine compartment, and is sucked back into the radiator. After a few minutes of recirculation, the overall temp of the air going thru the radiator can climb significantly.
The belly pan also forces increased air flow over the oil pan and exhaust system at highway speeds, and the two air guides blow cool air over the engine mounts, increasing their lifespan.
I have had gravel dislodge a belt, which dislodged another belt, so keeping debris out is another plus.
Not critical in most cases, but a very useful item to have on the car.
07-31-2013, 05:47 PM
#18
Rennlist Member
This thread just cost me $350! My new 928MS belly pan should be in next week. Then I gotta figure out how to get it in the plane. Always a good reason to fly somewhere.
07-31-2013, 06:42 PM
#19
Drifting
The belly pan is pretty important for cooling while sitting in traffic with the AC going...
The primary effect is prevention of hot air recirculation. With no belly pan, hot air from the engine fans blows straight down out of the engine compartment, and is sucked back into the radiator. After a few minutes of recirculation, the overall temp of the air going thru the radiator can climb significantly.
The belly pan also forces increased air flow over the oil pan and exhaust system at highway speeds, and the two air guides blow cool air over the engine mounts, increasing their lifespan.
I have had gravel dislodge a belt, which dislodged another belt, so keeping debris out is another plus.
Not critical in most cases, but a very useful item to have on the car.
The primary effect is prevention of hot air recirculation. With no belly pan, hot air from the engine fans blows straight down out of the engine compartment, and is sucked back into the radiator. After a few minutes of recirculation, the overall temp of the air going thru the radiator can climb significantly.
The belly pan also forces increased air flow over the oil pan and exhaust system at highway speeds, and the two air guides blow cool air over the engine mounts, increasing their lifespan.
I have had gravel dislodge a belt, which dislodged another belt, so keeping debris out is another plus.
Not critical in most cases, but a very useful item to have on the car.
Interesting... that might explain why the only time I ever overheated was when I was stuck in traffic coming home from carb day at the Indy 500 track. I rarely if ever sit still (in traffic or otherwise) so hasn't been a problem.
Now that my car hasn't been needing much attention down under, I think next time I have it up I button it back on. Last I recall, the back end was attached using zip ties and I never figure out where or how to attach the back end.
It's approximately 2 foot by 4 foot +/- 6 inches so I would think it would fit in a Piper. Most of my GA experience is in a Cesena. I brought home a framed painting from Alaska larger than a belly pan in a Skylane no problem.
07-31-2013, 07:15 PM
#20
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The shop that broke it buys you a new one. No fuss, no argument, or you get to go to town on 'em.
If you don't want the new one, then sell it.
All my 928s have belly pans.
Everything Wally wrote plus:
Without the belly pan the airflow under the engine bay is very turbulent. With no tray everything you drive over gets circulated into and around the engine bay. Nice powder-coated intake? Re-plated fasteners? New plated bits and pieces? Without belly pans all that stuff is going to deteriorate fives times as fast.
If you don't want the new one, then sell it.
All my 928s have belly pans.
Everything Wally wrote plus:
Without the belly pan the airflow under the engine bay is very turbulent. With no tray everything you drive over gets circulated into and around the engine bay. Nice powder-coated intake? Re-plated fasteners? New plated bits and pieces? Without belly pans all that stuff is going to deteriorate fives times as fast.
07-31-2013, 07:57 PM
#21
Under the Lift
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I've run w/o my belly pans for extended periods, and I can't say that they do much except for the jack rabbit, 18" drilling rig pipe, and some large unidentified road debris that were deflected away from the engine by the sacrificial plastic pan, which fortunately was installed during each of these encounters. Note jack rabbit sinew in second pic.
08-10-2013, 02:58 AM
#23
Pro
Imo000 and Sean:
This is the sort of vile personal abuse one finds between 16-17 yo's on YouTube.
How about you both go over there for a while?
John C.
'89S4
'90GT.
.
This is the sort of vile personal abuse one finds between 16-17 yo's on YouTube.
How about you both go over there for a while?
John C.
'89S4
'90GT.
.
08-10-2013, 05:44 AM
#24
Burning Brakes
Well, that's one way to look at it. On the other hand, if I were going to take my car to a mechanic, I would prefer one who takes a strong stand on obviously incorrect statements.
08-10-2013, 06:00 AM
#25
Nordschleife Master
Stay here a while longer. Get to know the personalities/demeanors here over time. Your opinion may change.
08-10-2013, 01:17 PM
#26
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Anyone have the dimensions of the belly pan. I want to fly up to Carl's place and get one of his. Knock out some flying hours and save $74 on shipping. Cost about that to fly or drive up.
Gotta fix in either the front door of my Piper Cherokee or the rear cargo door of my Piper Archer II.
Gotta fix in either the front door of my Piper Cherokee or the rear cargo door of my Piper Archer II.
__________________
ReDesign by FEATHER
by Jerry Feather
Producer for 928 of:
-Hatch Latch Receiver Liner--All Versions
-Replacement Heavy Duty Spare Tire Cover
-Flush Center Console Conversion
-Cowl Cover, Cowl Seal, & Shell Stickers--All versions
(RHD included)
-Aluminum Gas Cap Ratcheting Pawl
ReDesign by FEATHER
by Jerry Feather
Producer for 928 of:
-Hatch Latch Receiver Liner--All Versions
-Replacement Heavy Duty Spare Tire Cover
-Flush Center Console Conversion
-Cowl Cover, Cowl Seal, & Shell Stickers--All versions
(RHD included)
-Aluminum Gas Cap Ratcheting Pawl
08-10-2013, 04:02 PM
#27
Burning Brakes
after reading this thread I reinstalled my belly bans . Finding all those silly fasteners was the hard part ( I have a 4 post lift in the back yard ) . The car now runs cooler in traffic , the temp gage remains right at the thermostat running temp . The pans were put on the car for a reason .
08-10-2013, 04:29 PM
#28
Nordschleife Master
Guys,
I'm considering employing rivnuts for the two wings.
It would require some drilling, but my real question is how 'deep' is the metal brace that I want the rivnut to expand on ? I don't want to drill unless I am certain that the rivnut that I have will work.
If any one has done this, would you be able to post a pic, or specifically describe what you had used.
Thanks.
I'm considering employing rivnuts for the two wings.
It would require some drilling, but my real question is how 'deep' is the metal brace that I want the rivnut to expand on ? I don't want to drill unless I am certain that the rivnut that I have will work.
If any one has done this, would you be able to post a pic, or specifically describe what you had used.
Thanks.
08-10-2013, 06:17 PM
#29
Rennlist Member
Guys,
I'm considering employing rivnuts for the two wings.
It would require some drilling, but my real question is how 'deep' is the metal brace that I want the rivnut to expand on ? I don't want to drill unless I am certain that the rivnut that I have will work.
If any one has done this, would you be able to post a pic, or specifically describe what you had used.
Thanks.
I'm considering employing rivnuts for the two wings.
It would require some drilling, but my real question is how 'deep' is the metal brace that I want the rivnut to expand on ? I don't want to drill unless I am certain that the rivnut that I have will work.
If any one has done this, would you be able to post a pic, or specifically describe what you had used.
Thanks.
