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Which engine to use?


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Breaking down a couple of GSXRs and trying to decide what to do with the parts. One engine is going to go into a 750 because I want a second 7/11, and 750 exhausts are impossible to find anymore. I already have a naked 7/11, but I'm kinda enjoying riding bikes with full fairings again. The other engine is eventually going to get the boost treatment.

I've got an 1127 GSXR engine, a stock blandit 1200 engine, and a spare dot head that I wouldn't mind swapping onto either of them. Whichever one goes into the 750 frame will also be getting a set of RS38s and a full yosh system for a blandit. Kinda tempted to stick the 1100 in the 750 and save the blandit for the boost engine, but which one will be more work in the long run and which one will be cheaper for the biggest smiles when I do build a turbo bike?

I'll post up some photos when I go out to the garage later and might actually do a build thread for this one. This was the bike before I took it on about a 1500 mile road trip and a mate rear ended me and broke my exhaust.

65188938787__E0F4AF1B-AFF0-4D6F-9D0A-16D91BABF1FB.jpg

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Can't say about a boosted motor but I have a gsx1100f with gsxr750 38mm carbs and a b12 motor with a ported DOT head and gsxr750 38mm carbs and gsxr cams.

Both are great fun but the b12 motor seems to have more fun grunt and just keeps going and going, on the other hand the gsx1100f motor, I can't keep the front wheel on the floor in 1st and 2nd and even 3rd can get light :D

Ps.

the cams in the gsx1100f motor are the same part number as the gsxr1127k cams

That bit for info ;)

Edited by wraith
Add a bit
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1 hour ago, Joseph said:

I was under the impression that the gsxf11 cams were the same as 1052 cams ? 

So I was curious and checked the part numbers. The gsxf1100 intake cams were used in everything from the gsxf600s, to gsxr750s, to gsxr1100s. The exhaust cams were only used in the following bikes.

Suzuki Motorcycle 1988 GSX-R750L CAM SHAFT - VALVE (MODEL J/K)

Suzuki Motorcycle 1989 GSX-R750L CAM SHAFT - VALVE (MODEL J/K)

Suzuki Motorcycle 1990 GSX-R750L CAM SHAFT - VALVE (MODEL J/K)

Suzuki Motorcycle 1989 KATANA - GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1990 KATANA - GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1991 KATANA - GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1987 GSX-R1100 CAM SHAFT/VALVE

Suzuki Motorcycle 1986 GSX-R1100 CAM SHAFT/VALVE

Suzuki Motorcycle 1988 GSX-R1100 CAM SHAFT/VALVE

Suzuki Motorcycle 1992 KATANA - GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1993 GSX1100F CAM SHAFT/VALVE

Suzuki Motorcycle 1993 GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1988 KATANA - GSX1100FP CAM SHAFT/VALVE

Sorry, the parts site is calling them Katanas, not me. I also don’t have a gsxf1100 engine and don’t see myself getting one any time soon. 

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Tried fitting my 1200 exhaust tonight. Does not like the fit on a 750. Definitely time for a bigger engine. Couldn’t even get the header on without removing the oil cooler from the mounts. Looked at my 7/11 that has an akro 1200 exhaust and it looks like with a straight oil cooler and spacers for the lower mounts, it’ll clear. 

D1DD0638-540C-4CB9-8E0A-0CBD9B1FF176.jpeg

118AA751-3DA4-4EA7-95DA-67226C2BFE48.jpeg

4D131740-FA10-4515-B9D9-59AF0691CEFC.jpeg

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10 hours ago, Upshotknothole said:

So I was curious and checked the part numbers. The gsxf1100 intake cams were used in everything from the gsxf600s, to gsxr750s, to gsxr1100s. The exhaust cams were only used in the following bikes.

Suzuki Motorcycle 1988 GSX-R750L CAM SHAFT - VALVE (MODEL J/K)

Suzuki Motorcycle 1989 GSX-R750L CAM SHAFT - VALVE (MODEL J/K)

Suzuki Motorcycle 1990 GSX-R750L CAM SHAFT - VALVE (MODEL J/K)

Suzuki Motorcycle 1989 KATANA - GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1990 KATANA - GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1991 KATANA - GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1987 GSX-R1100 CAM SHAFT/VALVE

Suzuki Motorcycle 1986 GSX-R1100 CAM SHAFT/VALVE

Suzuki Motorcycle 1988 GSX-R1100 CAM SHAFT/VALVE

Suzuki Motorcycle 1992 KATANA - GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1993 GSX1100F CAM SHAFT/VALVE

Suzuki Motorcycle 1993 GSX1100FP CAM SHAFT/VALVE

Suzuki Motorcycle 1988 KATANA - GSX1100FP CAM SHAFT/VALVE

Sorry, the parts site is calling them Katanas, not me. I also don’t have a gsxf1100 engine and don’t see myself getting one any time soon. 

Never checked the numbers myself, just what I was told by someone on here.

Good info (y)

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23 minutes ago, Dezza said:

Don't Hindle still make oil-cooled 750 exhausts? Alternatively, is there anywhere in US/Canada that will make you a bespoke system at a reasonable price?

Hindle sells exhausts for slabbies and 88-89 slingshots, but I've gone back and forth with them for 90-92 and until they can get a bike in to test fit the exhaust, they won't sell them. Really want to just tell them to make the down pipes 1/2" longer and keep everything else the same and we'll make them work. Yosh America wants $450US for a custom can, probably looking at over a grand for a full exhaust from anyone that knows what they're doing anymore. Pretty sure the UK has way more slingshot stuff floating around than we do. All of our bikes got totaled or are sitting in the garages of collectors now.

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47 minutes ago, Upshotknothole said:

Hindle sells exhausts for slabbies and 88-89 slingshots, but I've gone back and forth with them for 90-92 and until they can get a bike in to test fit the exhaust, they won't sell them. Really want to just tell them to make the down pipes 1/2" longer and keep everything else the same and we'll make them work. Yosh America wants $450US for a custom can, probably looking at over a grand for a full exhaust from anyone that knows what they're doing anymore. Pretty sure the UK has way more slingshot stuff floating around than we do. All of our bikes got totaled or are sitting in the garages of collectors now.

Shame: there are multiple places that will make a bespoke system for less than the cost of a fancy branded can in the UK. We are lucky here :)

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