flat 4 with 16 valves and DOHC

[Martin Bott]

Hi,

2nd batch of heads is casted and milled after some changes were made to the mold. This time inclusive the 14 fins. Heads look very good. Robert Bernauer at RMB is currently testing them and will then accomplish one engine.
Cannot parse a picture - sorry!
(more info f.e on germanlook.com)

Other parts are nearly finnished also.

Will keep you posted.

Martin Bott
Bug @ 5-Speed
www.bugat5speed.de
info@bugat5speed.de

[Martin Bott]

Hi,

wanted to give you an update on the status of the heads/the engine.

Robert Bernauer now did the first few flowbench tests with the heads. The results are really impressive and we expect a very good performance of the engine. The heads with no adjustments made (only mounted) were already better than the best type 4 race heads he compared.
He made 3 further tests with each time smalle adjustments and the flow data let us hope on a very good performance of the engine.
Flow at 25" is:

1mm - 38,2
2mm - 70,9
3mm - 107,9
4mm - 144,1
5mm - 183,3
6mm - 210,7
7mm - 230,7
8mm - 245,8
9mm - 256,0
10mm - 263,7
11mm - 267,6
12mm - 272,2
All measurements without manifold.
12 mm with a primitive manifold 285,4
13 mm with this manifold 289,1.

There are still some things to be done, so that we can expect a further improvement. But even if it stays like this we are very satisfied with what we have.
Next week I will finally have the die/mld for the manifolds. As soon as we have the first casted manifolds Robert will test the whole range again with manifolds.
More info to follow.

Martin

[Benoit]

Hi Martin,
and do you have some pictures of theses heads?

[PatFlat4Ever]

Ce projet a-t-il abouti ? Quelqu'un a-t-il des infos ?

[PatFlat4Ever]

Du coup j'ai directement demandé à Martin où en était le projet, voici sa réponse :
"Hi there,
No news on this matter. Want to buy the whole stuff like molds, parts, drawings,...?
Have got no more time to bring it forward.
Kind Regards
Martin Bott"

[Benoit]

Oups... j'ai oublié de te répondre! le projet était déjà à l'arrêt quand nous sommes allé le voir au GT2...