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-)
Post Reply
adsgreen
Cruising
Posts: 5571
Joined: Mon Aug 16, 2010 9:54 am

Re: light and strong Audi R8 V8

Post by adsgreen » Tue Nov 18, 2014 10:58 am

It's again assuming the credibility of the 481ps. It is meaningless without independent testing or benchmarking. It also doesn't help that you are commercially involved as you have posted adverts relating to this.
This is nothing personal but we have all been around long enough to not accept anything without proof.

Speedr8
3rd Gear
Posts: 291
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Tue Nov 18, 2014 2:27 pm

Hi

Intake valve right-side > 9/2010
Intake valve left-side 9/2010 >
Image

poor quality
Image

Finish
Image

Tom

Baz4
2nd Gear
Posts: 121
Joined: Fri Nov 18, 2011 12:55 am

Re: light and strong Audi R8 V8

Post by Baz4 » Tue Nov 18, 2014 2:37 pm

How many bhp do you expect to gain through the valve thinning and polishing alone?

Speedr8
3rd Gear
Posts: 291
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Tue Nov 18, 2014 3:43 pm

Hi

At least 15 hp and 20 hp are desired.

And additionally PS are expected over the custom exhaust manifold, homemade 1.4828 :nodder:

Image

Image
Baz4 wrote:How many bhp do you expect to gain through the valve thinning and polishing alone?
Tom
Last edited by Speedr8 on Tue Nov 18, 2014 3:45 pm, edited 1 time in total.

bam_bam
Cruising
Posts: 14440
Joined: Mon Jan 18, 2010 9:08 pm
Location: London

Re: light and strong Audi R8 V8

Post by bam_bam » Tue Nov 18, 2014 3:45 pm

Baz4 wrote:How many bhp do you expect to gain through the valve thinning and polishing alone?
You'll need to wait until he's got enough credits in Gran Turismo so he can figure it out...
No matter where you go, there you are.

Speedr8
3rd Gear
Posts: 291
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Tue Nov 18, 2014 3:50 pm

Hi

The result you do not accept anyway :biggrin3:
bam_bam wrote: You'll need to wait until he's got enough credits in Gran Turismo so he can figure it out...
Tom

bam_bam
Cruising
Posts: 14440
Joined: Mon Jan 18, 2010 9:08 pm
Location: London

Re: light and strong Audi R8 V8

Post by bam_bam » Tue Nov 18, 2014 4:15 pm

I accept what Gran Turismo says, it's just a videogame so I don't take it seriously. It's when people try it on in the real world that it becomes laughable.

Back up your dyno figures with a quarter mile slip, otherwise forever be called out on the claims you make.
No matter where you go, there you are.

marc1
Cruising
Posts: 3289
Joined: Sun Jan 31, 2010 4:46 pm

Re: light and strong Audi R8 V8

Post by marc1 » Tue Nov 18, 2014 4:26 pm

Will V Box screenshots suffice or does it need to be at the strip?

bam_bam
Cruising
Posts: 14440
Joined: Mon Jan 18, 2010 9:08 pm
Location: London

Re: light and strong Audi R8 V8

Post by bam_bam » Tue Nov 18, 2014 4:31 pm

Both can be affected but at least the strip slip has some credibility. VBOX is helpful though.
No matter where you go, there you are.

marc1
Cruising
Posts: 3289
Joined: Sun Jan 31, 2010 4:46 pm

Re: light and strong Audi R8 V8

Post by marc1 » Tue Nov 18, 2014 6:20 pm

Tom it looks like the challenge has been set! You have V Box I believe so round one would be covered. Round two at the strip for the ultimate shakedown. Will be interesting to see the results, but assume this is some time away as assume your car is off the road for a while whilst this is all being done?

Speedr8
3rd Gear
Posts: 291
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Tue Nov 18, 2014 6:33 pm

Hi Marc

Yes, he's hibernating R8 and becomes the 01/04/2015 again make uncertain the streets.
A new engine tuning ( ECU ) is then performed by JD Engineering Holland.
After that I will go with my performance Box 1/4 Mile.

Tom

Speedr8
3rd Gear
Posts: 291
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Thu Nov 27, 2014 7:58 am

Hi


Image


Image


Image


Tom

Speedr8
3rd Gear
Posts: 291
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Tue Dec 09, 2014 8:26 am

Hi

For a better cylinder stuffing the intake manifold accumulator is divided.

Image

Image

Image

Image

Tom

Speedr8
3rd Gear
Posts: 291
Joined: Fri Feb 21, 2014 6:28 pm

Re: light and strong Audi R8 V8

Post by Speedr8 » Tue Dec 09, 2014 1:07 pm

Hi
With the enlarging of the inlet ports and intake manifolds, a cross-section was reached of plus 19.8%.
Dimensions series in the smallest cross-section ( Tumble end flaps) > 1232mm², Tube smaller 40mm ( also Audi RS4 B7 )
After the processing > 1476mm², Tube now 43,5mm ( The V10 and RS5 have 1508mm², Tube 44mm )


Image

Image


Tom

User avatar
ChrisW
3rd Gear
Posts: 317
Joined: Sat Nov 26, 2005 8:24 pm

Re: light and strong Audi R8 V8

Post by ChrisW » Tue Dec 09, 2014 2:22 pm

I can't help but feel a little irked by the approach of some of the posters in this thread. Tom isn't exactly being bold with his claims, just stating figures that, ok, haven't exactly been proven, but are impressive nonetheless. JD engineering has a pretty good reputation, I'd be surprised if Jereon would let these so called "fantasy" dyno results be plastered over the internet with his name all over them.
Current: 07' B7 RS4 Avant
Previous: Mk2 Golf VR6 conversion, Mk2 Golf GTi 16v, Mk2 Golf 1.6 GL Auto, Mk3 Golf R32 conversion, BMW Z4 Coupe, BMW 430d, Audi S3, Defender 90 XS, Alfa Romeo 145

Post Reply

Return to “R8 Coupé / Spyder (Typ 42) 2007-”

Who is online

Users browsing this forum: No registered users and 33 guests