Mad 1100cc triumph twin

I found this interesting

He cudda got a few extra cubes by going to a 93mm stroke.

But I doff my cap to him, that is an incredible amount of work invested to get those dustbin sized pistons in! I was playing with the idea of using (I think) B44 pistons in a stroked Triumph once, I drew up new head bolt layout etc, but in the end I gave up and went the big 8 valve route.

Can’t help but think the valves in this monster would be too small for that capacity.

Wonder what it went like ?!

Wonder what it sounded like ?!!

Fast Eddie said:

He cudda got a few extra cubes by going to a 93mm stroke.

But I doff my cap to him, that is an incredible amount of work invested to get those dustbin sized pistons in! I was playing with the idea of using (I think) B44 pistons in a stroked Triumph once, I drew up new head bolt layout etc, but in the end I gave up and went the big 8 valve route.

Can’t help but think the valves in this monster would be too small for that capacity.

Wonder what it went like ?!

Wonder what it sounded like ?!!

Click to expand...

I was surprised that it didn't have steel rods
But what an incredible amount of work
If Millyard sees it he'll build a 2200cc version of it

baz said:

I was surprised that it didn't have steel rods
But what an incredible amount of work
If Millyard sees it he'll build a 2200cc version of it

Click to expand...

Yes, I was surprised by the choice of rods too. I reckon the builder was happy to invest huge time and skills etc, but not so much cash, as evidenced by the lack of fancy crank, rods, etc.

Fast Eddie said:

Yes, I was surprised by the choice of rods too. I reckon the builder was happy to invest huge time and skills etc, but not so much cash, as evidenced by the lack of fancy crank, rods, etc.

Click to expand...

Yep I think you are right
I'd love to have seen it run
The Kickstarter was brilliant too

...but you've gotta give him an "A" for ingenuity & balls!!

That is an awful lot of work & ingenuity. I do have to wonder if the gudgeon pin hadn't caused the failure, would the Norton crank have snapped or the crank cases cracked first?

Nice post and find baz.

Gotta like an engine builder not stuck in a boring lego stock build box. I also like the "I'm so excited" enthusiasm of the person taking on the job of rebuilding it.

Irrelevant drivel: Probably had a lot of teeth on the rear sprocket launching in 4th gear. I don't think the valve sizes as they are would be an issue. Climbing hills requires that the engine is always on the pipe so to speak. If the valves were too big that might have been an issue recovering from an unexpected off throttle event. Both torque and horsepower need to be there the entire climb. Stopping on a hill climb sucks. If you've never climbed hills, the adrenaline rush climbing steep hills is off the chart and very satisfying going over the top. Well, for me it was, but I never did it at a pro level or on anything like a 1100cc 70's Triumph.