Ruddspeed carbs

[BN6]

There must have been 2 types of period casting of the Ruddspeed manifold, mine looks like Randy's example which will accomadate a hi-performance free-flowing header design. The other with the lower integral balance pipes as see here on the 1960, former Bill Bolton owned Canadian Championship winning 3000 # 171.

View attachment 47649

'dougie' with the balance pipes shown between these Ruddspeed carbs, from your experience is it possible to still fit a tubular exhaust manifold to increase flow ? I see in the picture they have left the cast iron manifold in place.

 

[dougie]

I don't think any of the existing "off-the-shelf" tubular exhaust headers would clear the balance pipes. I think if you went to a custom shop, a set could be made to fit.

 

[andrea]

I agree with you, if you really wont a speedy engine, more works must be done - crankshaft and connecting rods must be strictly balanced and cam must be a fast road (minimum) type (I have found one my conn.rods with more than 150 gr weight difference)
I have 100/6 2.4 l with this modifications and the power are more than the normal 3000 with two SU -
I have also 3 X Weber DCOE battery, ready - but car go so well, that I never decided to mount (only trimed and tested during the car rebuild) here my last version with MANGOLESI Linkages comand
https://photos.app.goo.gl/Nsh6oW5799MPJq4c8
https://photos.app.goo.gl/dSJwVJeogtGUPe749
here the test run
https://photos.app.goo.gl/dFjkSruskwZDA1sb9
https://photos.app.goo.gl/bBwjzpNSzBRGtYLs7

- NOTE I have a short intake collector and trumpet - Full length collector ask more modifications to the car body and structure
https://photos.app.goo.gl/Gyh3hya2pvzrwDn4A
https://photos.app.goo.gl/Z9zhCvmvvYaj6KZy8

 

[Patrick67BJ8]

'dougie' with the balance pipes shown between these Ruddspeed carbs, from your experience is it possible to still fit a tubular exhaust manifold to increase flow ? I see in the picture they have left the cast iron manifold in place.

There’s also another style of Ruddspeed without the Intake manifold fins for LH drive cars. I used to own one. It may take me a while to find a photo of it.

 

[dougie]

There’s also another style of Ruddspeed without the Intake manifold fins for LH drive cars. I used to own one. It may take me a while to find a photo of it.

It looks like this.....

 

[Patrick67BJ8]

It looks like this.....

View attachment 54782

Yep.

 

[BN6]

There’s also another style of Ruddspeed without the Intake manifold fins for LH drive cars. I used to own one. It may take me a while to find a photo of it.

Mine is a right hand drive BN6 100/6 just in the process of rebuilding a 2.9 engine to a triple carb fast road spec to replace the 2.6 engine. Part of my upgrade involves a Ruddspeed conversion with the period correct RHD manifolds and rocker cover.

Will post some pictures once its complete.





Here is the current engine.

 

[HealeyRick]

Here's your chance to get the Ruddspeed test car: https://www.rawlesclassiccars.co.uk/sales/austin-healey-3000-mki-bn7-ruddspeed/ and the original article: https://www.motorsportmagazine.com/archive/article/september-1960/46/very-hot-healey

 

[Bob_Spidell]

re: https://www.motorsportmagazine.com/archive/article/september-1960/46/very-hot-healey

By my calcs, that's £228.00, about $264.40 at the current exchange rate. Sign me up!