Friday, 5 February 2010

shorrock supercharger water jacket super rare c75b 142b

Never seen one of these before. I wonder how effective they are. The seller claims it to be a Shorrock original...

"hello and welcome to my auction for this origonal shorrock water jacket basically this goes in between the carburetta and the supercharger either the c75b or the 142b unit. this piece has 1 inlet and 1 outlet so water can flow round it. very very rare item and hard to find 1 of these now so complete your classic build by using origonal pieces ... thanks for looking

Question & Answer

Q:Please could you tell me the diameter of the hole in the middle and the distance between the stud holes.
A:The internal boar is 35mm... the 4 holes are the standard distance apart as on the shorrock inlet and outlet 50mm centre to centre...and the other 2 holes where i persume the carb would bolt on are 60mm centre to centre"

SOLD FOR : £137.00

UPDATE : Here's a photo courtesy of Paul Fleetwood of the water jacket fitted as part of a Shorrock instalation on an Ogle SX1000, a 1962 Mini based special -

Note also, the single groove pulley on the Shorrock.


Jason said...

So I can see where it goes but what's it for? I thought compressed air got hot so you needed an intercooler not an interwarmer? Enlightenment required :-)

Craig Gingell said...

Hi Jason,

Me thinks it's a homemade item designed to allow the fitment of an 1 3/4" SU to the 1 1/2" SU manifold.

In the first photo you can see the 1 1/2" SU 2 x stud fixing hole arrangement, and in the second photo the 1 3/4" SU 4 x stud fixing hole arrangment.

For whatever reason they then fitted a water jacket arrangment around the flange.

Shirley it would have made more sense to cool the manifold after the supercharger...?

Jason said...

I think you're right, I can't understand why anyone would want to warm the air up - carb icing would not be a problem in a blower application.