This is the motor as it arrived to me - Lovely to receive a complete engine, still in one piece!
Italian made sand cast weber’s are becoming a rare sight these days -
Original bottom end - It’s hard to believe that’s only 998cc with the steel main caps and forged 5 - main bearing crank, you have to think Cosworth had something else up their sleeve for this motor...
An old ‘Coopers’ head gasket shows its been a while since someone was last inside this little gem.
Very narrow head and cam carrier but 5 bearing camshaft for a rigid valve gear assy, is typical Cosworth sound engineering.
Cosworth certainly knew how to drive a camshaft!
I think that the last builder got a bit confused with all that paint for gear timing!
Pistons are single compression ring and surprisingly heavy for a Cosworth item, considering there is only 250cc per cylinder to drive them
A fine crankshaft in true Cosworth tradition.
This one is still at standard size - Pretty amazing, especially when you see when it was made!.......
....... LAYSTALL 2/5/1964
Don’t blame Cosworth for that terrible match between inlet manifold and head - this engine used to be fuel injected -
At sometime in it’s life someone converted it to carburettors, a shame it wasn’t given a bit more attention!
Good size valves for a litre engine. Note, on a flat cylinder head, all the combustion takes place in the piston.
That looks better - amazing what a bit of time with a grinder can do ...
I think Cosworth would be proud !
Cylinder head is very compact with downdraught manifolds
Parts tidied up - seats cut - new valves - not bad for a 48 year old.
That’s the full gear set - 7 gears for 2 cams...
A little bit of new technology crept into the build, lovely job by CP Pistons.
Black low friction coating on skirts and ceramic heat barrier coating on crowns
Starting to look like a motor that means business again!
There’s nothing like a good pair of webers to get excited about - beautiful condition after a few hours of TLC.
What more could you want - ?
Other than more of the same ...
Fresh engine looking for a formula car with similar interest, hobbies - weekend drives - likes going fast.
In 1964 Cosworth released the 997cc SCA for use in Formula 2 racing. The SCA being the first extensively Cosworth designed engine. Based on the Ford 116E Cortina engine, the block was the only standard component used. Cosworth designed and produced it’s own alloy down draught cylinder head with an overhead camshaft. A major development was the gear driven jackshaft and overhead camshaft ( which in 1967 appeared againin the 1600cc FVA Formula 2 engine and was ultimately used for Cosworth’s most successful engine, the Formula 1 DFV in 1967)
The SCA did go on to win the 1964 and 1965 Formula 2 Championships. In 1965 it was further developed for the North American Sports car Formula known as the SCC. This entailed an over bore to 85mm making it 1098cc and giving it an extra 20hp in the process. The final development was in 1966 where it supported Lucas fuel injection to give 130hp at 10,000 rpm.
I often hear people refer to the FVA as half a DFV, so you could probably refer the SCA as a quarter of a DFV..... Enjoy the re-build.
The above dyno test results compare the SCA to a Cosworth 998cc MAE.
The MAE was a wet sump 998cc engine on twin 40 DCOE carbs. Its easy to see where the SCA has its advantage ... at the top of the rev range it is far superior and still increasing in power at 9000rpm. In fairness the MAE would have picked up a few top end hp had it have been fitted with a dry sump, but even then well short.
Cosworth’s data sheets from the period quote 115hp at 8700rpm, impressive figures almost identical to what this rebuilt SCA made on our dyno. Even more impressive is that Cosworth quote 130hp for the injected SCA, that’s 130hp per litre for a 50 year old engine ... a number i was doubtful of until now
