7 replies to this topic

[TimS]

you really want lots of torque and less revs. the 2.9 will b good for motorway use. Id also go for a twin back box system for sound on motor way journeys and the less low down torque thats lost. The sw5 is perfect. Its also worth havign new bearings and piston rings/hone if not rebore at the same time

[TimS]

i wouldnt go for a super light weight flywheel or else pulling off with a 2.9 final drive will ber rather difficult depending on the torque of the engine.

[Guess-Works.com]

Pesonally, unless your intending on thrashing it around, I don't think the CPU or Mainstrap are worth it, unless you're planning on rebuilding the whole engine.. I ran my 1330 for 30k without a mainstrap with no issues, and

If your after any form of economy I'd be tempted to stick with a standard or slightly lightened flywheel, as this ads inertia to the rotating components, and hence makes crusing easier.

Maybe improving the head, some mild porting to improve the breathing, or an MG Metro/GT head...

[Dan]

I've been thinking for some time that you could make a good touring engine from an A series by squaring it off. You can get it nearly square with a rebore and a destroke, and it stays almost at 1275 (can't remember how big exactly). Although it would be a very expensive way to gain no extra capacity.

Ah well there you go, just me rattling on about nothing again.

[TimS]

im thinking that would give you a good balance of torque(large bores) and higher rpm(destroked crank)?

[Pavel]

No, making it square would increase power definitely, and it would rev higher (probably the reason for the power increase:p). Torque comes from longstroke cranks generally, anythything which is shortstroke/square is more RPM/hp oriented.