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GS 1000 engine in GSXR 1100 first gen frame?
- Thread starter John Kat
- Start date
ozman
Guest
built this instead
Johno
Forum Mentor
i had the same thought but havnt got around to finding the gsxr frame
built this instead
Ozman can you give us a little detail?
Frame?
ozman
Guest
Harris F1 frame and swingarm
harris triple clamps
tank and bodywork by harris modded for twin headlights for road use
bandit 1200 forks and wheels
AP brakes
1230 GSX motor
acewell dash
Ohlins shock and steering damper
Your bike looks great!
I had a look at their frames (http://www.harris-performance.com/acatalog/F1.pdf) and it's very tempting for sure.
The only issue is to get it road legal here in France...
For that reason, buying a GSXR frame from an existing bike that has been registered is a good solution.
Would it be possible to give us some detailed pictures of the rear suspension set-up?
I noticed you used a Bandit 1200 fork as I did on my 1100 Kat: cheap but effective!
On the cheap side you can also go from a Bandit 1200 I suppose
And here are the build details:http://www.customfighters.com/forums/showthread.php?t=57473
ozman
Guest
What are the main differences between the Trident XR 69 and the Harris F1?we built 2 as road bikes, the other is in mike grants paint scheme
ozman
Guest
the trident bike is a replica of the suzuki XR69 racebike made for the GS1000 engine you can fit a GSX1100 engine but its a tight fit requiring removal of the rocker cover to instal motor in frame
the other downside of trident is dealing with john simms he has a habit of taking peoples money telling alot of lies
after i had paid him 15000 pound it took me 2 years to get my XR69 out of him
there is numerous story of him doing the same to others as well plus he currently owes my about 3500 dollars for parts ive ordered and paid for but never received from him now he refuses to answer his phone or emails
just a lying prick to deal with nice bikes though
It happened to me once when ordering car parts from Japan...
It's a pity because I like the idea of a smaller bike like my ZX10R that feels just like a 600 until you open the throttle.
Next week I'm going to see the GSXR 1st gen frame that's for sale.
My hopes are low because I got some dimensions that clearly indicate that the frame is much shorter than the GS 1000's.
ozman
Guest
i was explaining this to another person last week about weight differences
the SB3 bimota feels like a 500 to ride so light and nimble but has the grunt of a 1000
From experience building both models, yes, the GSXR1100 space available is too short for the GS motor. A guy here in NZ was talking about doing the same thing but using the first version GSXR400 frame which is visually a dead ringer for the XR69 alloy version. But it's even shorter...
In fact what could most probably(?) be done is to extend the beams under the tank and shorten the vertical beams to which there are attached to keep the headstock (?) at the same height.
The lower beams would have to be extended by the same amount.
Here's a picture of the frame: http://www.leboncoin.fr/equipement_moto/753787894.htm?ca=2_s#
As the main beams are hollow we just need to fabricate a "male to male" plug in aluminiun and weld it in place.
Sounds easy?
It wont be quite as easy as I thought because the top frame beams are not parallel...
This would mean having to insert extension adapters on eitheir side of the split beam in such a way that they would join on parallel longitudinal planes.
I suppose a drawing would better explain what I mean.
The good news is that I believe the extension should be around 50 mm maximum as one can see from the picture where I placed a GS 1000 engine upper case on top of a GSXR lower case.
Here are a few pictures:
ozman
Guest
It doesn't appear to be too difficult to have these made?
In fact as GregT mentionned, the most difficult will be to build the jig to hold the parts in place while welding them.
This design however would allow the use of two "half" jigs: one for the frontend to the insert reference holes, the other from the swingarm axle to the same insert reference holes.
We are almost done...
Here's the drawing:
Of course I could go the other way around and fit a GSXR engine in a GS 1000 frame like this one:
My plan is to get it on some wheels and pedal it down a slope to determine if the frame is straight...
Next I'll make a jig to retain the current settings of the swingarm axle versus the headstock.
It should then be easy to extend the jig by the required 50 mm to ensure the frame inserts are correctly welded in place.
This one def looks more Resto than RetroOf course I could go the other way around and fit a GSXR engine in a GS 1000 frame like this one:
