Joined: Aug 2017 Posts: 425 Threads: 30
Reputation:
7
Location: Wellington, NZ
Hi Mark, excellent pictures, thank you! How did you make the pop off valve on the end of the inlet manifold?
Simon
Joined: Mar 2015 Posts: 5,467 Threads: 231
Reputation:
67
Location: Scotchland
8200 rpm - holy s**t!!!
You do things very well Mark!
Joined: Aug 2017 Posts: 688 Threads: 113
Reputation:
2
Impressive work, Mark! Thank you for posting.
Erich in Seattle
Joined: Aug 2017 Posts: 52 Threads: 10
Reputation:
2
Fantastic project and a beautiful looking engine! Willing to share it's spec? John
Joined: Aug 2017 Posts: 691 Threads: 37
Reputation:
1
Location: The Scottish Border
Hi Mark
Sounds as if it could be a lot, lot faster
than the original? Is this car for circuit racing
Or Sprints? Or Roadgoing!!!?
Bill G
Based near the Scottish Border,
Joined: Aug 2017 Posts: 1,715 Threads: 47
Reputation:
25
Location: Auckland NZ
Car type: 36 Nippy, 31 RM, 38 Special, 24 Works Rep
Bill, you are probably correct but remember it is extremely unlikely that the engine will achieve those rev's when in the car and under load. if it did we would be looking at something over 120mph. Mark will correct me if I am wrong, but as I recall the factory struggled to get enough power to push the car much over 95mph, however Mark may well achieve the magic Ton which eluded the factory for so long.
Black Art Enthusiast
Joined: Aug 2017 Posts: 2,748 Threads: 31
Reputation:
95
Location: Auckland, NZ
That handiwork too good to damage.
5 squared is 25, 8.2 squared is 67! A 170% increase. What rpm was the original held to? The owners of the NZ Rubber Duck never managed to put the original crankcase back together again successfully.
Joined: Aug 2017 Posts: 425 Threads: 30
Reputation:
7
Location: Wellington, NZ
Have you made any mods to ensure the block stays attached to the crankcase?