Steel crank

[2cams70]

Remember too that an engine that produces useful power at 7,500+ RPM will probably be a dog to drive on the road. These old engines do not have the benefit of variable valve timing. The main benefits of having a steel bottom end and running it with a moderate cam is reliability, a bit more fun and entertainment but don’t necessarily kid yourself that you will be going faster.

[rgh0]

Remember too that an engine that produces useful power at 7,500+ RPM will probably be a dog to drive on the road. These old engines do not have the benefit of variable valve timing. The main benefits of having a steel bottom end and running it with a moderate cam is reliability, a bit more fun and entertainment but don’t necessarily kid yourself that you will be going faster.

I simply disagree.....

regards
Rohan

[2cams70]

Surely you haven’t flipped sides Rohan!! I thought a long stroke tall block was always the way to go!

[Europa88]

Remember too that an engine that produces useful power at 7,500+ RPM will probably be a dog to drive on the road. These old engines do not have the benefit of variable valve timing. The main benefits of having a steel bottom end and running it with a moderate cam is reliability, a bit more fun and entertainment but don’t necessarily kid yourself that you will be going faster.

Well the reliability aspect was the initial primary reason for a steel bottom end as I do rev it to 7k some times. The soft cut is 7050RPM and hard cut at 7100RPM and it is still making power at this RPM on L14 cams. I cant see it being hugely difficult to drive on the road as it will now pull in top (Albeit if I'm gentle) from 2000RPM cleanly to its max. I don't expect it to be hugely faster at this stage, but later down the line I may put a pair of Mcoy cams and revisit the flow bench for the head. With respect I spent 30 years in the Motor trade and am now retired so have the time to do this. I also respect people who have raced at the cutting edge of TC development and always welcome
advice from people with real world experience with this engine, yourself included. So It may be faster lets wait and see, but a bit of a dog on the road is IMHO unlikely. Don't forget this is a car that only weighs 700Kg's.