I have already had a 1380 in the mini, it has a 286 cam, twin HS4 , Aldon yellow dizzy , Minispeed Stage 3 Head (AFAIK the valves are the biggest you can fit in as the gap between the two is literrally 1-2 mm thick, have to use additive as the seats aint done for unleaded) I think the comp ration is up near 11:1 but Id have to measure it up, It got a large bore 3 in 1 manifold and a 2" maniflow single box exhaust .
Problem is that I have either ran too much advance or the mixture was lean at the top end as I blew a hole in the ringland of #4 and so had feck all compression. I have no idea what pistons are in it as I took the head off but am yet to wipe way the carbon.
It had a proven 96 BHP and 86 Ft/Lbs torque all up around the 5k Rpm mark. Standard box + F.D so it had a 3.44 (Was a Early late cooper 1991, actually build on 31/12/1990)
I found the car neither quick , I mean Id consider it quick if it was to keep up with glanzas S and V , GTi etc, this could barely stick it out with some family saloons like passats. Found motorways a pain in the arse 120Kmph was around 4,500 RPM ( witha 2" exhaust
), power only came on around 3K and was a surge, only thing I couldnt fault it on was in top gear its could seriously move from around 80Kmph to 120 and above in seconds , its really was impressive, unfortunatley IMO, the minis Co-eff of drag means that its uneconomical at 120 and trying to go above means you need serious torque, which IMO the A-series cannot do reliably.
Soooo, my rebuild is focusing on a Blistering acceleration, I want 0-60 in single figures at least, 7secs if possible (I dont see why not with 100+BHP in a 900kg car) so was thinking of going for a Lower FD and sacrificing Motorways as I barely use them, its far too expensive in a mini, you nearly see the fuel guage going down and your ears bleeding.
Fuelling is going to be controlled by a canems ECU, Hopefully mated to Motorbike TBs on a Mpi manifold, I want to keep the manifold short in order to reduce the pulse effect of the siamese ports, running a dry manifold too. SHould be a interesting build, want to get it going ASAP!
In the future I'l try a 7port X flow then possiblt SUper or Turbo chrge it.