LostKiwi
Senior Member
- Joined
- Aug 25, 2006
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- 31,358
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- Midlands / Charente-Maritime
- Your Mercedes
- '93 500SL-32, '01 W210 Estate E240 (RIP), 02 R230 SL500, 04 Smart Roadster Coupe, 11 R350CDi
What are you guys talking about?
My head hurts now!
Old Minis....
648 and 544 were camshafts - the numbers were the last three digits of the part number (C-AEG544 AND C-AEG648). The 648 was a full race camshaft - inlet and exhaust valves were open 300 degrees out of every 720. Both were open together for 95 degrees of that. Made for very poor low speed driveability.
Small were motorbike carburettors.
45DCOE was a Weber carburettor, 45mm bore, two barrels and fitted with a removable Venturi (also called choke).
48DHLA was an even bigger D'ellorto equivalent with dual 48mm barrels.
HS4 and HS6 were SU carburettor of a single 1 1/2 and 1 3/4 diameter barrel respectively. Usually used in pairs.
8 port heads were a special competition part - the normal mini cylinder head had 5 ports, siamesed inlets and siamesed exhaust for numbers 2 and 3. The 8 port gave much better flow and was also x-flow (carburettors on the front, exhaust on the back).
This was all back in the day when tuning was accomplished mechanically with no sign of a computer....
You did ask...