04-05-2022, 12:34 PM
My Pytchley saloon with 4 speed CR gearbox, 5.25 axle and about 8.5 cwt will do the steady climb out of my village to the hill top in 72 seconds. The long hill is taken in 3rd gear, it will not pull top.
The other day I timed the RL saloon on the same climb. 3 speed box, 4.9 axle and at least a cwt heavier. The time? 72 seconds, exactly the same as the Pytchley. Most of the run was done in top gear.
In theory the Pytchley should be quicker. Both engines are similar spec except for the cylinder heads. The Pytchley has a bronze 9E1 head and the RL has a Dave Dye Ricardo head. Perhaps I need to fit a similar head to the Pytchley?
The other day I timed the RL saloon on the same climb. 3 speed box, 4.9 axle and at least a cwt heavier. The time? 72 seconds, exactly the same as the Pytchley. Most of the run was done in top gear.
In theory the Pytchley should be quicker. Both engines are similar spec except for the cylinder heads. The Pytchley has a bronze 9E1 head and the RL has a Dave Dye Ricardo head. Perhaps I need to fit a similar head to the Pytchley?