hussey1 Posted October 19, 2015 Share Posted October 19, 2015 (edited) I'm looking to put a bandit 1200 oil cooled engine in my 1983 air cooled gsx frame. Please could someone point me in the direction of the engine mounts drawing for this conversion, I'm aware it's on the site but can't seem to find it Any advice from others that have done this conversion would be appreciated, thanks Edited October 19, 2015 by hussey1 Quote Link to comment
teltwosheds Posted October 19, 2015 Share Posted October 19, 2015 You had best check out the katana frame post for bracing the frame first Quote Link to comment
Paulm Posted October 19, 2015 Share Posted October 19, 2015 make sure your exhaust will fit without having to weld stubs on,some of the mounts I've seen set the engine too far back in my opinion,we set mine up off the front mounts and made the rest to suit the motor,not sure how the ones on here work out exhaust wise,seems to me that it's making more work for yourself having to weld stubs on the exhaust as well,of course this won't matter if you are fabricating your own headers. 1 Quote Link to comment
Rene EFE Posted October 19, 2015 Share Posted October 19, 2015 Mine's further back to have the sprocket closer to the swingarm. Have collars on the exhaust to make up the gap, works a treat but means more measuring. 1 Quote Link to comment
hussey1 Posted October 21, 2015 Author Share Posted October 21, 2015 Thank you for your replies and the advice on the brackets affecting exhaust headers etc..I've had a look at the Katana frame brace post and read through it. Is this essential, will my frame bend with the oilcooled engine in if I don't brace it?Only reason is I had the frame powder coated originally when I did the build so would ideally just like to swap the engine and necessary parts to do the swap. Here's a pic of how it currently stands 2 Quote Link to comment
Captain Chaos Posted October 21, 2015 Share Posted October 21, 2015 ahhh.... GSX750. In that case there will be no choice of engine placement (bit more forward or not) in the frame, oilcooled engine is a nice and tight fit.All the drawings of engine brackets on this site are for 1100 frames and will be of no use to you. I think @Del has done the swap, you can ask him. 1 Quote Link to comment
hussey1 Posted October 21, 2015 Author Share Posted October 21, 2015 Thank you Captain Chaos, I will contact @Del regarding the engine brackets.I guess does the frame bracing still apply for the GSX750 frame too? Quote Link to comment
Pedda Posted October 21, 2015 Share Posted October 21, 2015 You won't need to brace your frame if you not gonna use your bike like a lunatic. Like a teaser of a similar bike? 7.5 Yoshi engine though... Quote Link to comment
Swiss Toni Posted October 21, 2015 Share Posted October 21, 2015 make sure your exhaust will fit without having to weld stubs on,some of the mounts I've seen set the engine too far back in my opinion,we set mine up off the front mounts and made the rest to suit the motor,not sure how the ones on here work out exhaust wise,seems to me that it's making more work for yourself having to weld stubs on the exhaust as well,of course this won't matter if you are fabricating your own headers.Have you had any rear chain /sw.arm issues with the motor mounted forward, Paul? Quote Link to comment
Swiss Toni Posted October 21, 2015 Share Posted October 21, 2015 ahhh.... GSX750. In that case there will be no choice of engine placement (bit more forward or not) in the frame, oilcooled engine is a nice and tight fit.All the drawings of engine brackets on this site are for 1100 frames and will be of no use to you. I think @Del has done the swap, you can ask him.So Cap'n. Are you saying the engine bay on the 750 is smaller than the 1100? Thought the two frames would have been the same size? Quote Link to comment
Pedda Posted October 21, 2015 Share Posted October 21, 2015 What CC is talking about:What we see here is a square tube GSX 750 frame - very different from the round tube 11hundreds. Quote Link to comment
Captain Chaos Posted October 21, 2015 Share Posted October 21, 2015 yes, contrary to the round tube GSX's, the square tube 750 is much smaller than the square tube 1100 (EFE). An aircooled 1100 engine does not fit into a square tube 750 frame. Quote Link to comment
teltwosheds Posted October 21, 2015 Share Posted October 21, 2015 Sorry about the misunderstanding on the frame doh! I assumed it was a round tube like my one. And yes I do hoone about on it and feel a bit of flex now and then Quote Link to comment
Captain Chaos Posted October 21, 2015 Share Posted October 21, 2015 I also didn't know till Hussey posted a pic Quote Link to comment
Swiss Toni Posted October 21, 2015 Share Posted October 21, 2015 I'm nearly sure there was a purple, turbo'd 1150 EFE a few years ago. It was said the frame was 550EFE?Go figure. Quote Link to comment
Swiss Toni Posted October 21, 2015 Share Posted October 21, 2015 Knew I had a 'photo somewhere! Maybe I'm wrong? Anyone know it? Quote Link to comment
coombehouse Posted October 21, 2015 Share Posted October 21, 2015 Might be efe bodywork but the motor is oil cooled not air cooled so it isn't an 1150efe. The motor looks fairly tight in the frame so I guess it could be from a smaller bike. No doubt an expert will be along in a minute. Quote Link to comment
Swiss Toni Posted October 21, 2015 Share Posted October 21, 2015 You're right, Coombe! I was taking too much notice of the frame, and not looking at the motor!Shoulda went to Specsavers!!! Quote Link to comment
Gammaboy Posted October 21, 2015 Share Posted October 21, 2015 Might be efe bodywork but the motor is oil cooled not air cooled so it isn't an 1150efe. The motor looks fairly tight in the frame so I guess it could be from a smaller bike. No doubt an expert will be along in a minute.Front engine mounts are 10ft long - it's an EFE frame, engine mounted to the back. 2 Quote Link to comment
Captain Chaos Posted October 22, 2015 Share Posted October 22, 2015 yep, 100% sure it's an EFE frame. Swingarm pivot area looks completely different on smaller square tube frames. Quote Link to comment
Rene EFE Posted October 22, 2015 Share Posted October 22, 2015 Is this essential, will my frame bend with the oilcooled engine in if I don't brace it?No, not noticably anyway. @Paulm runs his Turbo-ET without having it braced, stock engine shouldn't and won't be a problem. 1 Quote Link to comment
hussey1 Posted October 22, 2015 Author Share Posted October 22, 2015 I also didn't know till Hussey posted a picApologies I should of said initially it was a 750 frame or posted the picture in my first post No, not noticably anyway. @Paulm runs his Turbo-ET without having it braced, stock engine shouldn't and won't be a problem.Okey dokey thank you. If it is essential I would rather do it whilst I swap the engine, but as I said previously I had the frame powdercoated not that long ago when I did the original build.Now just to sort out the engine mounts... Quote Link to comment
Gixer1460 Posted October 22, 2015 Share Posted October 22, 2015 Not the same but similar - I put a GSXR1100 in my Z1000J frame (nice big hole to fill!), I started with the bottom mount. Threw the engine in the cradle and spaced it up so the bottom engine holes were central to the bottom frame mount holes to create a nice triangular plate approx 35-50mm tall. Once that was fixed, it was cardboard cutting time to create front and rear plates. Luckily on the Zed frame one of the kwak rear mounts was close the the GSXR engine holes and just needed a little fettling. As the frame got monoshocked at the same time, the shock lower linkage pivots were fabricated on to a plate with bottom engine mounts and work / mount in conjunction with the stock frame mounts. This resulted in slightly longer ex. headers and the sprocket not being hugely distant from the swingarm pivot. As the exhaust was a one off bespoke for the bike, that didn't cause a problem and the sprocket location never caused much issue this chain tension - tighten or slackening! 1 Quote Link to comment
Paulm Posted October 23, 2015 Share Posted October 23, 2015 Apologies I should of said initially it was a 750 frame or posted the picture in my first post Okey dokey thank you. If it is essential I would rather do it whilst I swap the engine, but as I said previously I had the frame powdercoated not that long ago when I did the original build.Now just to sort out the engine mounts...Yep no bracing on my ET frame,approx 200bhp going through it,just sent it off to be painted,gave it a look over before it went,can't see any cracks or anything,it might get braced in the future as it evolves though,only for aesthetic reasons though as I like the look of braced frames,this is the reason it's being painted and not powder coated,it's easier to clean up and weld to. 1 Quote Link to comment
Paulm Posted October 23, 2015 Share Posted October 23, 2015 We used some old dog bones for the bottom engine mounts,saves making them,just cut them to length and weld them in. Quote Link to comment
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