Ok what I have found so far, to get the engine bottom mount through stud to fit, I had to cut the righthand rear side frame gusset to allow the engine to move back towards the swing arm, but then the left hand front lower rail interfered with the lower left hand crankcase bolt and the boss on the crankcase, right hand side still had clearance.
From there I noticed that the engine is sloping backwards in the frame (something I hate) I also noted that the left hand rail was bent inwards a bit and it also was hitting against the front of the crankcase like as if it had had a shunt in the front, this stopped the engine from sitting level.
Bolted it all up tight on the bottom through stud and setup a hydraulic spreader between the front down tubes and spread it out to equal the right hand side, this allowed a bit more room at the front but the engine is still tilting backwards as well the gearbox centre line is well above the swing arm pivot point; my 650ss has the gearbox below the swing arm pivot and the rear wheel axel is also lower than the swing arm pivot so in reverse of a featherbed frame?
From an engineering point of view that would reduce the lightness on the front end on acceleration and affect handling?
Hi Geoff I have the original Trident frame but someone has cut the front lower section out, comparing the two frames I preferred the OIF.
At this stage I am looking at cutting off the two rails and bending up two new rails that will allow me to position the engine correctly and know that everything is straight and true.
Matt and FE, the problem is the front lower crankcase bolts and bosses, there is simply not a enough clearance to allow the engine to sit level (unless you cut and flat plate the rails) plus as above comments regards centre lines of swing arm pivot ect, not sure what Storik and the QLD guys have done though to get it to fit or whether they were worried about how it handled?
When you look a the lower front rails of the Trident frame they are basically parallel till they get past the crankcase then they swing into the single down tube, this would give them the clearance needed, but that frame looks too much like a flexy flyer IMO, be interesting to know how they got them to handle years ago, but history tells us they certainly did?
So next step is to set up the frame on my 2" thick bed plate off one of my CNC mills, make up some stands to accurately locate the swing arm pivot and steering head, bend up some new side rails out of 1 1/4" DOM tube to suit, whilst working out the correct alignment of the centre lines for the gearbox, swing arm pivot and rear axle, not much when you say it quick
But as I said earlier, I have 4 other projects I am working on so this one is at the planning and gathering of parts and a bit of work here and there when I have time!