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What can still be disposed of is the air pump for secondary air and the active carbon container.
Here the V8 is 4Kg and V10 even 6kg if two pumps are installed.

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Tom
 

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Another measure is to reduce weight, the conversion to R8 GT without gearbox oil cooler.
All that is required is a short-circuit oil line from the GT ( 420.317.818.G ), everything else is disposed of.

-5 kg or -11 ibs


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I ordered a magnesium plate yesterday, let's see what can be made from it.
By the way, magnesium is just as light as carbon fiber.
Magnesium AZ31 has the advantage that it is malleable.


Tom
 

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Magnesium sheet 55.1 x 21.65 x 0.039 inches to 3.0 Ibs.

GT Cover Tunnel up to Ibs 2.425 as a comparison.

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Tom
 

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-Most coil-overs, if aluminum bodied, probably save you a good chunk of weight.
Good point...18 pound savings or just over 8 kg for our Ohlins Adjustable Coilovers for the R8, they are above the center of gravity height and half of that weight we consider unsprung mass. 3.6 kg at the front axle and 4.5 kg at the rear axle of weight savings. Plus a lot of direct benefits noted in detail elsewhere on top of the weight savings. Audi R8 Coilovers - for Gen 1 - Ohlins TTX Suspension Audi R8 Coilovers - for Gen 2 - Ohlins TTX Suspension

Definitely trying to prioritize weight savings that are higher up is best. Stuff down at the ground line is not nearly as advantageous (weight transfer - longitudinal or lateral is due to vehicle weight, center of gravity height height, wheelbase and track width). Decreasing weight, but raising the CG height doesn't help if they are similar proportion.

Better seats noted here (more support) that are lighter and let us sit lower (that lowers a lot of weight then with a driver), for example, are another great weight weight saving example - and they don't change the weight distribution a lot.

I also agree the exhaust change is great because it gets weight off of the rear...beyond the awesome sound improvement. Moving the weight distribution forward on a mid engine car helps balance, balance consistency and performance a lot.
 

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What can still be disposed of is the air pump for secondary air and the active carbon container.
Here the V8 is 4Kg and V10 even 6kg if two pumps are installed.

View attachment 247263

View attachment 247264

Tom
Tom, if I remove all of this I’ll have to plate over/block the exhaust connection, unplugging the pump from the wiring is ok or does it bring up a fault code ?
Apart from the two points I brought up is the rest a closed system to the pump and tank ?
It was much easier to remove on a BMW E46 M3
 

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If the valves on the engine for secondary air are removed, the holes in the cylinder head must be closed. (13)
The electrical control valve must stay on otherwise an error entry.
The pump can simply be removed, no error entry.

Active carbon containers can be replaced with a hose.

Tom
 

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If the valves on the engine for secondary air are removed, the holes in the cylinder head must be closed. (13)
The electrical control valve must stay on otherwise an error entry.
The pump can simply be removed, no error entry.

Active carbon containers can be replaced with a hose.

Tom
The large tank doesn’t look easy to remove and to block the cylinder head hole doesn’t look very accessible either Tom
 

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then just remove the pump. The vacuum control on the valves must be removed and closed.

You can get the container for AKF out from above.

Tom
 

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It's easy, unscrew the screw and determine the length.
If the titanium screws are a little longer than necessary, it still works.

Tom
 
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