Sunday, 12 December 2010

Shorrock blue print

Another original component drawing from a Shorrock Supercharger has come up on eBay.

Starting price : £30.00. Unsold.

Sunday, 21 November 2010

Shorrock balanced pressure lub system blue print

Another original component drawing from a Shorrock Supercharger has come up on eBay.

Sold for £25.00

Shorrock outlet pipe blue print

Some of the original component drawings of the Shorrock Supercharger have come up on eBay.

Sold for £25.00

Tuesday, 19 October 2010

Triumph 2000 MkI Overdrive Switch

Having discovered that the Lucas part number of the column mounted Triumph 2000 MkI overdrive switch is 34713, my saved search on eBay eventually turned up trumps with this new old stock item -

An absolute bargain at £8.51 !

Just need to remove the steering column cowling to fit it - although I've heard it's a pig of a job!

Saturday, 16 October 2010

Records Galore!

A Shorrock Supercharger advert found in the 2nd October 1959 issue of Autosport...

Thursday, 7 October 2010

October Sunshine

She moves! First time out the garage for nearly 12 months - albeit under the power of a tow rope. Still looks totally gorgeous.

Wednesday, 15 September 2010

My First Vitesse - OLO 451E

Back in 1993 after I finished college I bought my first Vitesse, registration OLO 451E. It was a dark blue 2 Litre (MkI) convertible with overdrive. I sold her a few years later when I moved to Canada, but was surprised to find this photo of her on Flickr, taken on 2nd May 2010 in Croxall, Staffordshire...

I'm going to try and dig out some photos, but if anyone knows the current owner, I have the original Triumph "Servicing Schedules" booklet here on my desk.

Saturday, 11 September 2010

Shorrock C75B Supercharger

Although not suitable for a Triumph, this Shorrock Supercharger kit is a rare item still in its original box. I guess the rarity was reflected in the final price.

SOLD FOR : £1637.07

Thursday, 8 July 2010

Manual Overdrive Conversion

Here are all the parts collected so far for my impending gearbox conversion...

Reconditioned gearbox and overdrive from Canley Classics...

NOS Master Cylinder...

NOS Slave Cylinder...

Pedal box, courtesy of Tim Bancroft...

Flywheel courtesy of Mark Bland...

A few other bits, and I can't remember if these came from Tim or Mark...

Clutch release bearing - not sure if it's knackered with that chip?!

Monday, 24 May 2010


Just some pics of an estate I took quite a few years ago...

Wednesday, 10 March 2010

Tale of Two Shorrocks

During the restoration of the Coupe, the Shorrock unit was the only item that was not restored. I'd heard horrendous stories of people taking them apart to strip down and then having problems with the reassembly. So I opted to just give it a try and see if it still worked as well as I remembered when I had the Shorrock on my Herald 1200 saloon back in the mid 1990s.

Back in August/September last year I was still running in the engine, so didn't really give the Shorrock that many revs. However after a 1000 or so miles and increasingly higher engine revs it became apparent the Shorrock was not producing the levels of pressure I was expecting.

Fortunately, a friend of a friend had a Shorrock unit for sale that he claimed to be a rebuilt unit. It wasn't until October/November that I got round to swapping the Shorrocks over to see how well the rebuilt unit would fare. Removing and refitting the Shorrock installation isn't the simplest of tasks, but I can now do it around an hour. With the rebuilt Shorrock fitted I fired the engine up and took it for a test run. There was a noticeable improvement on the original unit. Fantastic I thought.

My joy did not last long. After less than a 100 miles the Shorrock seized solid while driving along the M4 doing about 70mph. Bugger. I was recovered home by the AA and the Coupe spent the winter under a cover in the garage.

In the last few weeks I have pulled the Coupe out of the garage and removed and stripped down the Shorrock. My worst fears haven't been realised however. The vanes and inner casing are still in fair condition having not made contact with each other. There was no sign of a lack of oil or lubrication. The metering pins on both units were identical. The seizure was caused by a poorly fitted bearing that should have been a press fit into the rear casing. Instead it appears that rather a lot of Loctite was used to secure the press fit bearing in place. When the Loctite let go, the back of the Shorrock wobbled and seized itself against the inside of the rear housing. Hmmm, not ideal.

So now, with the unit in bits I'm hoping to get the rear casing machined round ready to fit a new bearing dead centre without the aid of Loctite.

It would appear there are rebuilds and there are rebuilds...

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.

Thursday, 4 February 2010

Shorrock Supercharger Boost Gauge, MG, Ford, Mini

I once thought these were rare, but they seem to come up on eBay pretty regularly...


Sunday, 31 January 2010

Shorrock Supercharger Oil Feed Flange, Sprite, Mini, MG

Interesting to see that someone has decided to re-manufacture the rear flange.

"Oil Feed Flange for Shorrock CB 75 Supercharger, Brand new, machined from solid brass with 1/4 B.S.P. oil line feed, exact copy of original item"

SOLD FOR : £26.00

Tuesday, 26 January 2010

Triumph Shorrock Supercharger Inlet Manifold

These don't come up very often and selling at £66.21 including the relief valve is a relative bargain!

SOLD FOR : £66.21

Sunday, 17 January 2010

Spitfire4 - Branch Manifold

These pictures are quite old (they date from around August 2002) but I've just found them on an old PC. They document my attempt (and subsequent failure) to fit a 4 branch manifold to a Spitfire4. There were issues with clearing the breather pipe, and the rod style throttle linkage. Not to mention the fact the flange face was thicker then the inlet manifold flange (making it impossible to clamp to the cylinder head), the inlets themselves were seriously cracked underneath (resulting in air leaks) and the Y piece on the manifold exited skew-wiff on the chassis...

Disappointingly, I gave up on the project, nearly loosing the car during at attempted respray and sold it on in 2008. The manifold resurfaced on my Herald Coupe restoration following major surgery to make in clear the Shorrock Supercharger installation.