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Lockheed caliper ID
Posted: Mon Jan 14, 2013 10:18 pm
by sandman
Hi,
I need help identifying some 4pot aluminium calipers found on a 'special saloon' Mini.. The car har 13" wheels...
Anyone here know what they are from ore perhaps has an old Lockheed parts-list or cataloge?
Re: Lockheed caliper ID
Posted: Tue Jan 15, 2013 10:00 am
by andy1071
Looks like an older/classic CP2361 / CP2270 / CP2271 type caliper from AP Racing
http://www.apracing.com/product_details ... _disc.aspx
You need to measure piston diameters to determine which it is.
(They are also machined in the parthway/end plates to suit disc diameter)
-These were originally designed for use in F1, way back when.
Re: Lockheed caliper ID
Posted: Tue Jan 15, 2013 6:07 pm
by sandman
As far as i can tell the number on the caliper is CP2250 or CP2260 - but I cannot find any refrence to this anywhere...
Re: Lockheed caliper ID
Posted: Tue Jan 15, 2013 6:38 pm
by Frogeye61
Re: Lockheed caliper ID
Posted: Wed Jan 16, 2013 9:59 am
by andy1071
The number on the caliper is the casting number. When it is machined (with different piston sizes for example) it got a new number.
-That's how it used to be.
The finished part number was usually stamped on, but with age, it might not be visible any more. Look on the flat faces: sides of the mounting lugs, end faces etc.
-And yes Automotive Products is defunct.
But AP Racing has been in business since mid '60s (ish), and still going strong.
Brakes had 'Lockheed' on them, and clutches had 'Borg and Beck', to advertise the production-vehicle side of the business
Going off-topic somewhat, AP also designed and built the auto gearbox for the Mini. -The engineers reckoned there was room to have made it a 5-speed, but it was already a 'sensation' to have a 4-speed auto! (and in such a small car!)