Tyre pressure

[classicswede]

Originally Posted by arcturus

The PV is an old lady. I don't exceed 4000rpm, 80km in third.

Some of the works drivers opted to keep the B16 over the B18 as the lighter 3 bearing crank would raise upto the higher RPM's faster. I know they were revving B18's to over 8000RPM

With that said with a 3 bearing crank it will flex more at higher RPM and for that reason I would not hold the revs up high (over 6000RPM) for any length of time as there is a risk of failure

[Clan]

Originally Posted by classicswede

Some of the works drivers opted to keep the B16 over the B18 as the lighter 3 bearing crank would raise upto the higher RPM's faster. I know they were revving B18's to over 8000RPM

With that said with a 3 bearing crank it will flex more at higher RPM and for that reason I would not hold the revs up high (over 6000RPM) for any length of time as there is a risk of failure

Didn't the B16 and B18 have forged and hardened crankshafts ? the B20 and B21/B23 did until 1984 ... they would last forever , no wear whatsoever ..

[classicswede]

Not sure on the B16 but either way engine have gone from 3 bearing to 5 bearing for good reason