Mythbuster: continuing project thread of my 1303 '75

[judgie]

i was amazed at the differance the front splitter made to high speed stabilty on my race car. it will be having a new one for next year when it comes back out.
shame you missed out the 11's but you know there in the car.

[NO_H2O]

Looks to be smooth at 137. I might just have to cut one out for my car.

[70Turbobug]

Great vids Wally!

The car looks very stable at speed,nice set up! With that gear/tire/HP combo you can crack the 250Km/h.Armin ran 257 Km/h (digital speedo aswell) with my 90kg ass sitting along side.Rpm was approx. 6200 with a 225/50/15 tire 3.44 r+p and 0.82 4th.
boost was about 1.2 bar.Wastegate was set at 1.3 bar.

[Wally]

Clutch is clearly at its power limit... :

[Wally]

Originally Posted by 70Turbobug

Great vids Wally!

The car looks very stable at speed,nice set up! With that gear/tire/HP combo you can crack the 250Km/h.Armin ran 257 Km/h (digital speedo aswell) with my 90kg ass sitting along side.Rpm was approx. 6200 with a 225/50/15 tire 3.44 r+p and 0.82 4th.
boost was about 1.2 bar.Wastegate was set at 1.3 bar.

Mark,

257 km/h is sort of crazy in a beetle on the highway/autobahn. I recalculated and that is 251 km/h, which is close enough. Crazy...how does his stay stable for that? He runs less aero then I do, but his car is also less wide, so maybe that helps some to gain the speed. Still, over 250 km/h is wow!

[Sandeep]

Wow !

Is that a 6 puc Kennedy unit ? Have you looked at a dual disc setup ? I believe there is an advantage to 4 friction surfaces vs two for your power level. I'm looking in to it as well.

Sandeep

Originally Posted by Wally

Clutch is clearly at its power limit... :

[Wally]

Yep, that is, or better - was- a Kennedy 6-puck semi-metallic unit and a Sachs Race-engineering HD 228mm clutch (probably stage 2-ish).

They couldn't make me a organic twin-disk set-up (too thick), but instead I had to get the semi-metallic twin disk set-up with a G50 center. Hope it will still be driveble. Short of a stage 3, there are no options, so I went for that one.
I ordered it with a stage 1 pp. We'll see if we can get it round my shortenend G50 spline...

[Luismj]

wally,
One friend use this clutch (made usa) in one drag beetle with 900+ HP.
He said it was very good. What do you think about this?



Not found exactly the same on the internet. But the link below have one sample.
http://www.horsepowerfreaks.com/part...o_Stage_5/7263

http://www.youtube.com/watch?v=IgLKqW74agE

[JK Fab]

That is a black magic clutch disc. A lot of higher HP vw guys use that disc with a stage 1 plate.

[vdubzack]

Originally Posted by JK Fab

That is a black magic clutch disc. A lot of higher HP vw guys use that disc with a stage 1 plate.

I love this disc!!! Used to drag with, and can be freshened up by media blasting after a few runs. Almost like new. A little harsh on take off, but locks right up. Less harsh I found if hydralic clutch is used. also check out the Gene Berg dual friction disc.

[Wally]

What is better than one black magic disk?


Two of them...
Apperently kennedy use these to make their double disk set-up.
This is what came in yesterday:

[70Turbobug]

That should work Looking at your pics makes me realize once again what drag racing does to components...

Mark,
257 km/h is sort of crazy in a beetle on the highway/autobahn. I recalculated and that is 251 km/h, which is close enough. Crazy...how does his stay stable for that? He runs less aero then I do, but his car is also less wide, so maybe that helps some to gain the speed. Still, over 250 km/h is wow!

Actually,he has no aerodynamic "helper" whatsoever. A fairly standard suspension up front with Bilstein(?) gas shocks,beam supports and Rememle´s uniball rear suspension with stock steel trailing arms.Maybe he sits a little lower to the ground than you due to the 15" wheels? The car was very stable,felt like we were doing 130-150Km/h.

[Wally]

FPR and -6 AN upgrade:



and of the fuel rails (drilled and tapped for 3/8 NPT):

[Supa Ninja]

Wally, I'm loving the progress your build has made, sweet!

[paul_f]

Where do you take your MAP from Wally, have you drilled and tapped the manifolds?

Cheers
Paul