light and strong Audi R8 V8

Models: V10 plus, GT, GT Spyder, V8 Limited Edition, Exclusive Selection Edition, China Edition and LMX
4.2 V8 32v Naturally Aspirated - 414 bhp (2007-2011) - 424 bhp (2012-2014)
5.2 V10 40v Naturally Aspirated - 518 bhp (2012-2014) - 542 bhp (Plus 2012-2014) - 562 bhp (LMX 2012-2014)
5.2 V10 40v Naturally Aspirated - 533 bhp (2015-)
5.2 V10 40v Naturally Aspirated - 602 bhp (Plus 2015-)
Speedr8
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Re: light and strong Audi R8 V8

Post by Speedr8 » Mon Aug 24, 2020 10:54 am

Hi

The V10 from the 4S R8 has new ignition coils and new ignition plugs.

These can only be better than the old parts.

Image

Tom

Speedr8
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Re: light and strong Audi R8 V8

Post by Speedr8 » Sat Sep 12, 2020 1:19 pm

Hi

After replacing the wishbones, the question of the wheel load arises in detail.

I think that looks good, slightly higher in the back right and good.

Image

Tom

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FaisalJ
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Location: Surrey

Re: light and strong Audi R8 V8

Post by FaisalJ » Sat Sep 12, 2020 2:09 pm

1340kg. What weight did it start at?


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2007 RS4 B7 Avant
Phantom Black | Black Optics | MRC Stage 2 | JC Weldfab Exhaust | KW V3 coilovers | H&R ARBs | 20" Ispiri ISR-8 | Titanium wing mirrors | Driving Passion Diffuser | CF Air Intake | Manifold deflap | Alcantara/leather retrim | TT RS Steering Wheel | Pioneer Apple Carplay HU, JL amp and sub, Focal components | Clear Headlight Lenses, Black Internals, 6000K Bulbs | Trups LEDs | LED Tail lights |

Speedr8
3rd Gear
Posts: 251
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Sat Sep 12, 2020 2:33 pm

Hi

1640 Kg without driver full tank.

The weight in the picture is with driver and half full tank.

Tom

Speedr8
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Re: light and strong Audi R8 V8

Post by Speedr8 » Sun Sep 13, 2020 4:10 pm

Hi

There were already flooded engine control units because too much was cleaned with the high-pressure cleaner.
Here is the solution with a rubber seal as a rain gutter for water.
Place shown with red arrow in the picture where the water can penetrate the coupe and the solution in green.

Image

Tom

Speedr8
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Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Sun Sep 13, 2020 5:36 pm

Hi

And now something that the RS4 B7 drivers might be interested in.

On the R8 V8, the intake valves were switched to a thin shaft from 2010. See picture 1.

The advantage here is that there is less carbon on the valves due to the higher temperature.
The further advantage is a better passage and thus more power.

Image

Audi made the real highlight in the development of the V10 in the 4S, here they have taken a smaller
exhaust valve, which is 1mm smaller and the plug and play with the old V8 and V10 as well as the RS4 B7 V8.

The engines reach their maximum speed in less time, 20% faster than the old V10.
Exhaust valve old 28mm, exhaust valve new 27mm

Awesome, isn't it ?

Image

Tom

mongo
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Location: Scotland

Re: light and strong Audi R8 V8

Post by mongo » Wed Sep 16, 2020 11:04 pm

interesting, are you taking the cylinder heads off and getting the valve seats cut/machined to the new exhaust valves? Or are you re-lapping the valves back in?

Speedr8
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Posts: 251
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Thu Sep 17, 2020 6:11 am

Hi

The new valves have the same seat angle as the installed valves. The new valves, lapping / grinding done.

Tom

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