Email:
CWNicholls@aol.com
Engine Specifications
The engine is from my first Spitfire, a 1968
MkIII. It's (FE13780E) a 1300 small journal engine, bored 0.040 inch over using
GT6 pistons.
The head (stamped with the number 218139 over
cylinder 3, cast number 312246 over cylinder 2 and cast 1803 over cylinder 1)
is also MkIII and is ported according to the Mike Barratt Competition Prep
manual. Milled 0.100 inch. Isky dual valve springs with 100 pounds seat
pressure.
The connecting rods are lightened and
polished and the engine (pistons, rods, crank, flywheel, front pulley, and
clutch pressure plate) is balanced.
The cam is a Schooler (somewhere in Florida,
perhaps Gainesville) re-ground street-race item (part # N8000, intake 41/75 hot
clearance 0.014 gross 0.429, exhaust 76/40 hot clearance 0.014 gross 0.429)
that used to see ~8000 RPM in short duration during auto-crossing. I now keep
it under 5000 RPM.
The engine has cam bearings, something that
is optional in the 1500 engines. If you use cam bearings in a 1500 you need a
cam with small diameter cam journals, such as a 1147cc or early 1300cc (MkIII)
cam. Some of the 1147cc cams are quite good performers for 1300cc and 1500cc
engines.
Front of Radiator area
Air horns and bug screen. Oil cooler behind
screen, mounted lower down. It's a zigzag, continuous back and forth tubing
type with aluminum radiator fins. Note MkII full width radiator. Anyone know of
a supplier of high capacity aluminum radiators? In the picture to the right,
that's the copper fuel line going below the radiator support. It's inside a
tygon tube for abrasion and heat resistance. The 2 oil cooler hoses go through
the cardboard just under the air horn line.
Email:
CWNicholls@aol.com
