bonnet mods

Discussion and technical advice for 84-89 AW10 & AW11 MR2. 3A-LU, 4A-GE, 4A-GZE.

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j0nathan
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Location: Lancashire

Re: bonnet mods

Post by j0nathan »

squariel wrote:wow that was one interesting read about airflow.

the rear spoiler is next to useless :shock:

Don't forget that all that info is only based on airflow coming directly from the front of the car and flowing to the rear of the car and does not take into account airflow travelling across the car when cornering or from high cross winds. Under the latter circumstances the rear spoiler may have an influence on rear end stability.

If your running straight up the strip in a drag race though I'd junk it.
MartG
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Re: bonnet mods

Post by MartG »

IIRC the rear spoiler was always described as 'improving crosswind stability'
j0nathan
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Joined: Tue Mar 29, 2005 2:21 pm
Location: Lancashire

Re: bonnet mods

Post by j0nathan »

MartG wrote:IIRC the rear spoiler was always described as 'improving crosswind stability'

Excellent - my memory is still intact then!
jimi
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Re: bonnet mods

Post by jimi »

j0nathan wrote:
MartG wrote:IIRC the rear spoiler was always described as 'improving crosswind stability'

Excellent - my memory is still intact then!


From what I remember from various sources the rear spoiler was intended to have a dual purpose. One was as above, crosswind stability and the other was to act in conjunction with the rear window visor to create a low pressure area above the engine bay cover, this is to assist the airflow from under the car up through the engine compartment, thereby improving the cooling in the engine compartment.
Jimbo_Jet
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Re: bonnet mods

Post by Jimbo_Jet »

jimi wrote:From what I remember from various sources the rear spoiler was intended to have a dual purpose. One was as above, crosswind stability and the other was to act in conjunction with the rear window visor to create a low pressure area above the engine bay cover, this is to assist the airflow from under the car up through the engine compartment, thereby improving the cooling in the engine compartment.


Yep, that was my recollection as well! :)
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