[87gix750]

BR, I have been looking at this coupler chain(fried) and have to wonder if both engines are synched up well. If both engine were 100% equal thoughout the RPM range, I dont think this chain would look like that, I wonder if one engine is carrying more load than the other.
Just a thought

 

[87gix750]

Interested, in looking at the pic above, that idler sprocket makes for a quick reverse bend. Maybe thats what is generating all the chain heat.

 

[87gix750]

reminds me of a Lambretta primary chain. Of course that transfers about 12 horsepower on a good day...

That looks to be a double

 

[87gix750]

and its in a constant oil bath?

Come to think of it, all motorcycle engines that I have seen that use a primary chain have been double or triple row

 

[87gix750]

Its super cool and we support what you are doing,
most of us are not experts and we are only trying to help with suggestions that may have been over looked.
Please dont take us the wrong way, we all want to see this one and see what it can do.

 

[87gix750]

I personally think you chain coupler issue is the small idler sprocket.
That thing has got to be turning some serious rpm with a load on it

 

[87gix750]

Yeah if that chain was to break, I dont think the cover will hold it in.

 

[87gix750]

Do you plan on running at El Mirage or just Bonneville.
If you come to El Mirage, I can make the trip and assist in any way.

 

[87gix750]

Have you talked to my buddies at MDR?
They are big into the land speed stuff
Expect them to set a new electric record this year as well as beating the normal 500cc records they do.
I have some inside info about that electric airstream they are going to run.
Lets just say the dyno wasnt happy