Undertray Part 3, coming to the rear spoiler.....
08-12-2003, 03:24 AM
#1
Drifting
Thread Starter
Undertray Part 3, coming to the rear spoiler.....
O.k.,
We go on on the next part of engine cooling.
'If' the 964 engine had cooling problems on the cilinder heads, why does not rise the rear spoiler on slow traffic and on a certain temp.?
Every cooling will be a help on this item, so will be help the flow of cold air coming from the rear spoiler wall on low speed also.
And.. the next is that heat will always go to heaven and not to the bottem, so any exit on the engine bonnet will be welcome.
So... I drive always in stuck traffick with a spoiler in up position, and it helps cooling down the engine.
Think about this one...................
Arjan
964 C2C 1992 Black
We go on on the next part of engine cooling.
'If' the 964 engine had cooling problems on the cilinder heads, why does not rise the rear spoiler on slow traffic and on a certain temp.?
Every cooling will be a help on this item, so will be help the flow of cold air coming from the rear spoiler wall on low speed also.
And.. the next is that heat will always go to heaven and not to the bottem, so any exit on the engine bonnet will be welcome.
So... I drive always in stuck traffick with a spoiler in up position, and it helps cooling down the engine.
Think about this one...................
Arjan
964 C2C 1992 Black
08-12-2003, 05:17 AM
#2
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Dear Arjan,
This is a good idea but if you have a 1989 C4 you cannot do this. The interior manual control **** was installed from 1990 onwards and not for cooling purposes either. People/owners were getting booked for speeding because the Police were saying that they had to be travelling at more than 80 kph because the spoiler was up.
Ciao,
Adrian
964C4
This is a good idea but if you have a 1989 C4 you cannot do this. The interior manual control **** was installed from 1990 onwards and not for cooling purposes either. People/owners were getting booked for speeding because the Police were saying that they had to be travelling at more than 80 kph because the spoiler was up.
Ciao,
Adrian
964C4
08-12-2003, 06:29 AM
#3
Drifting
Join Date: Nov 2001
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Again, I suppose this is localised VS oil temps. The spoiler isn't an airtight lid anyway, so I can't see it aiding cooling much. As with the last thread, I'd like to know what proprtion of cooling is done by the oil system and how much by the fan & shroud system.
08-12-2003, 11:33 AM
#4
Burning Brakes
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Arjan,
Exactly my sentiments. I have an 89 which I have disabled the speed activated spoiler and made it fully manual. However unlike the stock switch of the later cars, I made mine one touch so I dont have to guess if its fully deployed or retracted or leave it on for too long and cook the spoiler motor.
My car doesnt have a sun roof so I installed an original sun roof switch as the deployment switch for the spoiler. Engine definitely runs cooler, at least as indicated by oil temp.
By the way, heat travels in all directions not just upwards (that would be convection). If you place your hand under on the tarmac under your engine after a run, you will feel the radiant heat.....same way heat comes down from heaven via the sun.
Exactly my sentiments. I have an 89 which I have disabled the speed activated spoiler and made it fully manual. However unlike the stock switch of the later cars, I made mine one touch so I dont have to guess if its fully deployed or retracted or leave it on for too long and cook the spoiler motor.
My car doesnt have a sun roof so I installed an original sun roof switch as the deployment switch for the spoiler. Engine definitely runs cooler, at least as indicated by oil temp.
By the way, heat travels in all directions not just upwards (that would be convection). If you place your hand under on the tarmac under your engine after a run, you will feel the radiant heat.....same way heat comes down from heaven via the sun.
