BMW E12 V8 Racecar Build

[Navigator_E90]

Good morning all,
Busy getting the E12 ready for the weekend - something "small" Ive lacked to do on this car - but done it on the E90, is the front suspension bushes.
They are NOT designed for track use and give a huge amount of flex under braking and cornering - changing the wheel alignment toe.
Which is obviously not ideal, making the car unsettling and unpredictable under mostly braking but also in high speed corners,
See the attached pictures of the std bush - just cleaned it up to be casted solid.
Even when pressed with my thumb, is scary the amount om movement these bushes give way, cant imagine how much they are flexing under hard braking.

 

[Navigator_E90]

Not everything in a build is wow or glamorous,

However adding all the small stuff - it does make a difference
Added 2 bonnet air vents, to assist with under bonnet pressure and heat
Might add a third vent in the center

 

[Benji]

Not everything in a build is wow or glamorous,

However adding all the small stuff - it does make a difference
Added 2 bonnet air vents, to assist with under bonnet pressure and heat
Might add a third vent in the center

Looks good! Did you make these yourself or did you buy them somewhere?

Have you done any empirical analyses of the vents? Sometimes that rearwards area of the bonnet can have quite a high pressure, meaning the vents can do the exact opposite as intended

 

[Navigator_E90]

Looks good! Did you make these yourself or did you buy them somewhere?

Have you done any empirical analyses of the vents? Sometimes that rearwards area of the bonnet can have quite a high pressure, meaning the vents can do the exact opposite as intended

Ive designed them as per space available and had them laser cut.
There are not many options of the space under the bonnet is a bit limited, so Ive placed them over the main "open" areas on the sides of the V8 in order to have a open flow of air and not restricted in any way.
The ideal is always to have them as close as possible to the radiator, but my airbox is in the way - thus are they fitted a bit deeper as what I would have liked.
The main goal for these vents are not temperature so much, dont have a cooling/temp issue - the radiator and oil cooler is working great.
But the fiber glass bonnet does flex alot due to the under bonnet pressure, so main reason is to release under bonnet pressure - and bonus to get the hot air out.
I should have tested the under bonnet temps before and after - might still do, just close the 2 holes, do a few laps open and close, and see temp difference,
If the bonnet still "flapper" to much - mainly when Im behind another car in turbulent air, might add a third vent, in the middle behind the radiator.