spondonturbo Posted May 13, 2016 Posted May 13, 2016 Might seem a silly question. I have an 1100 w with a knackered top end, so was wondering whether to drop an oil boiler in it. I think B12 engines go in slingshot frames, but do they go in waterboilerframes? Quote
spondonturbo Posted May 13, 2016 Author Posted May 13, 2016 3 hours ago, Captain Chaos said: Yes. well that was easy - lol. decision time then Quote
Captain Chaos Posted May 13, 2016 Posted May 13, 2016 but the mounting points will need modifying of course. Quote
spondonturbo Posted May 13, 2016 Author Posted May 13, 2016 OK, not so easy then has anyone done this? what needs modifying? is it just modifying plates or frame mods? Quote
Jaydee Posted May 13, 2016 Posted May 13, 2016 @spondonturbo Have a look at this similar old thread and check out it's links too. If it can be done with a water cooled 750 frame, should be a little easier with the 1072 frame. Plenty of info to digest. Quote
spondonturbo Posted May 13, 2016 Author Posted May 13, 2016 Thanks Jaydee. Just had a read and was some good info. I assume B12 motors are similar to 1100 oil boilers? as that thread is on GSXR motors? I get the impression from what I have read that the W frames may have a bit more room than slingshot frames? so should make it easier to get a B12 motor in. Quote
Jaydee Posted May 13, 2016 Posted May 13, 2016 9 minutes ago, spondonturbo said: I assume B12 motors are similar to 1100 oil boilers? as that thread is on GSXR motors? 1127 and 1157 oil cooled motors have the same exterior dimensions. Like twins separated at birth. Except they're not twins, they're inline fours. 1 Quote
Legotoy Posted June 24, 2016 Posted June 24, 2016 I have done this B12 into 750w conversion myself, back in the early 2000's. The bike was a beast and well worth doing the conversion in my opinion. There are a few compromises you have to make though so beware. The water cooled motors are more compact, and the cylinder block is more upright. The oil cooled motor also has a wider cylinder head, so those two factors combined means the B12 engine was slightly canted backward in the frame (sump was not completely level). You can't really tell by eye, but trust me. This is so the cylinder head clears the frame downtubes. A proper conversion would mean re-engineering at least the front frame loop. To make mine work I accepted the slightly canted back attitude of the motor, and used the lower rear mount as the starting point. It bolts up pretty well. Every other mounting point in the 750w frame had to be re-made to fit the B12 though. The sump on the B12 (or 1100 oil cooled, same engine) has bolts in the oil galleries that will foul the lower frame rails, and so had to be ground a little to clear it. Again I accepted the compromises of a slightly thinner wall to the frame tube where needed. It is a long story of how to fit it, but it can be done without major welding. Quote
Legotoy Posted June 24, 2016 Posted June 24, 2016 The pic is tiny because I didn't have a decent camera phone back in 2007! 2 Quote
spondonturbo Posted June 24, 2016 Author Posted June 24, 2016 5 hours ago, Legotoy said: I have done this B12 into 750w conversion myself, back in the early 2000's. The bike was a beast and well worth doing the conversion in my opinion. There are a few compromises you have to make though so beware. The water cooled motors are more compact, and the cylinder block is more upright. The oil cooled motor also has a wider cylinder head, so those two factors combined means the B12 engine was slightly canted backward in the frame (sump was not completely level). You can't really tell by eye, but trust me. This is so the cylinder head clears the frame downtubes. A proper conversion would mean re-engineering at least the front frame loop. To make mine work I accepted the slightly canted back attitude of the motor, and used the lower rear mount as the starting point. It bolts up pretty well. Every other mounting point in the 750w frame had to be re-made to fit the B12 though. The sump on the B12 (or 1100 oil cooled, same engine) has bolts in the oil galleries that will foul the lower frame rails, and so had to be ground a little to clear it. Again I accepted the compromises of a slightly thinner wall to the frame tube where needed. It is a long story of how to fit it, but it can be done without major welding. thanks for the info. much appreciated. Quote
badgerkdd Posted June 29, 2016 Posted June 29, 2016 Next time my 750 decides to blow up I might head down this road too . If you do this, start up a build thread please @spondonturbo for future reference . Quote
Del Posted June 29, 2016 Posted June 29, 2016 (edited) Freakspeed did one,not sure if he is on the here,he was on the old sites.On the old site,he put up pics of the engine mounts and what you needed to do. And the Cross brothers did one,that was featured in Streetfighters Edited June 29, 2016 by Del 1 Quote
spondonturbo Posted June 29, 2016 Author Posted June 29, 2016 7 hours ago, badgerkdd said: Next time my 750 decides to blow up I might head down this road too . If you do this, start up a build thread please @spondonturbo for future reference . If I go this route I will do. Could be a while.................. 1 Quote
TWISTON Posted February 10, 2020 Posted February 10, 2020 Great info folks, I shall start asap. Im waiting for bits for the SV hillclimb build so will crack on with this.Try and put up pics too. Although I am shite with technology, unless it's a lathe, milling machine or welder. Let the fetttling commence! Quote
gsx-f__k Posted February 11, 2020 Posted February 11, 2020 (edited) On 6/29/2016 at 9:31 PM, spondonturbo said: If I go this route I will do. Could be a while.................. On 2/10/2020 at 9:29 AM, TWISTON said: Great info folks, I shall start asap. Im waiting for bits for the SV hillclimb build so will crack on with this.Try and put up pics too. Although I am shite with technology, unless it's a lathe, milling machine or welder. Let the fetttling commence! I have a 95W 750 frame and B12 engine waiting for this operation. Rear mounts have to be reallocated somehow as far as I can remember, it's been a while I've looked into this. I've cut off rear mounts off frame and bottom cases are sitting in frame at the moment, I'll get pics when I'll get to bike. Let's make water boiler great again (sorry if this insults some people somehow, I'm finnish and just thought it's hilarious) Edited February 13, 2020 by gsx-f__k Quote
Jaydee Posted February 11, 2020 Posted February 11, 2020 12 minutes ago, gsx-f__k said: Let's make water boiler great again Again? 1 Quote
gsx-f__k Posted February 12, 2020 Posted February 12, 2020 16 hours ago, Jaydee said: Again? True. Quote
spondonturbo Posted February 13, 2020 Author Posted February 13, 2020 I ended up binning that bike off with the knackered head but I am now thinking of replacing the water cooled engine in my wp turbo project with an oil boiler so exactly the same idea just different bike. I have been told it is a very tight fit and this seems to match some of the detail above. Be good to hear what you guys do with yours 1 Quote
gsx-f__k Posted February 24, 2020 Posted February 24, 2020 (edited) WIP. I've not mounted cases properly as I need to check chainline when I get this 99 R1 swingarm fitted where it should be. Edited February 24, 2020 by gsx-f__k Add text. 1 Quote
Nick_C_Hotrods Posted March 13, 2020 Posted March 13, 2020 I would have had the knackered 1100 motor, mine has thrown its chain and wrecked the cases Quote
homer Posted April 9, 2020 Posted April 9, 2020 On 5/13/2016 at 2:51 PM, spondonturbo said: Might seem a silly question. I have an 1100 w with a knackered top end, so was wondering whether to drop an oil boiler in it. I think B12 engines go in slingshot frames, but do they go in waterboilerframes? Yes Angle grinder helps 3 Quote
Gammaboy Posted April 10, 2020 Posted April 10, 2020 On 4/9/2020 at 4:37 PM, homer said: Yes Angle grinder helps Fuck that thing looked great. 1 Quote
homer Posted April 11, 2020 Posted April 11, 2020 I still have all the parts except the fuel tank. Some day I might get that thing on the road. Quote
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