I have heard of a zx9 motor in a zx7 but what about a new zx10r motor in a 96 ZX7R?
ZX10R motor in a ZX7R?
IceZX7R
21 - 40 of 105 Posts
hmm are you lost?? j/k
Joined
·
329 Posts
FYI I have a 02 ZX7R frame sitting in front of me, and along side it a 07 ZX10R engine. It absolutly will NOT fit in the frame in the possition it needs to be, IF your intention is to have the sweet handling of the 7 combined with the brute force of the 10. I have seen the pic of the guy who had to have it at all cost and yeah you can mate them but you will not have a decent handler. I also read about the other guy who said he did it but now is fighting the fact that he dropped the front of the motor (casue it doesnt fit) and now has to much front end weight. The 7 is the most awsome handling bike I know. I own a 06 10r have had an 06 6r and 2 7r's. I would love to have the 7 with a 10 engine (thats why there both sitting in front of me now) The engine mounts on the 10 engines head, will not squeeze in between the frame PERIOD. You will have to do extensive modifications to either the frame or the engine. Oh sure it can be done, but I have an entire machine shop, have built 3 airplanes and countless bikes and cars and I am balking at the job. I just dont know if its worth it. Seems to me the 9 engine is a better route. So I am writing this to let any who think its easily doable know its not if its the magic of the 7 your after.
Skeet
Skeet
ok swolezx10, lets see these pictures already.
I'd like to see how you performed the fit on the mounts and also on the output sprocket.
1 more question....
I know everyone keeps talking about putting the zx10 motor into a zx7, but has anyone given any thought about other liter motors that might fit into the zx7? Say like a duck or r1 or something? Maybe those require less mods???
I'd like to see how you performed the fit on the mounts and also on the output sprocket.
1 more question....
I know everyone keeps talking about putting the zx10 motor into a zx7, but has anyone given any thought about other liter motors that might fit into the zx7? Say like a duck or r1 or something? Maybe those require less mods???
Joined
·
7,039 Posts
I've never tried it,but supposedly a GSXR 1000 engine will fit in the 7 frame with very little modding.I'm not claiming this to be gospel,I'm just reporting what I was told.If a 10R engine won't fit (I haven't tried this either) then I'd look at the GSXR 1000 as a suitable replacement.
Joined
·
13,724 Posts
Even if it would fit, the first time you dumped the clutch, it'd wind up like a leaf spring and probably spit you off like a pubic hair after.......well, you get the idea. That frame was not designed to handle that much power and any combination of the two would be an evil handling widowmaker.
Joined
·
7,039 Posts
You're quite possibly right.But,it would be cool as hell!!
Joined
·
329 Posts
I dont believe that a 10r engine in a 7 frame is a bad match. In fact I think the 7 frame is way more robust than a 10. Now I am talking 02-zx7 and 07zx10. The rear mounts NO way not even close. So you would have to cut them out and start over. Then if you want the engine to fit were its supposed to be (so your NOT fighting front end weight) you have to cut the frame, for the head to clear or modify the cylinder head mounts. Either one calls for exstensive modification that you cant go back to stock on. I am seriously considering, building a frame jig, chucking up the 7 frame (for measurments) and building a trellis frame to house the 10 while bolting on 10 swing arm and front end. I know what the thinking out there is already. "Why not just buy a 10"? I did! I have one. It doenst compare to the 7 in handling on ANY level. Isnt it curious why Kawasaki changed there bikes to handle quicker AKA lighter feel, Only to have to add steering dampners to stop them from tank slapping. And when you add a steering dampner you slow the handling back down AKA heavier feel. So I actually think building a frame from scratch will be easier (to me) than modifying the frame or engine to fit. FYI if I would do it I probably would cut the frame, and reinforce it. But I do have other ideas to add to the trellis frame that would make it worth while. Anyone interested?
Skeet
Skeet
Joined
·
13 Posts
?
i want all the pics you can get i have a 92 zx7 i have the 96 zx9 motor in it then i found a crashed 92 zx7r so i took the flatslides off an put them on the 9 its fast but not that fast i will be puting a zx10 motor in the 92 zx7r frame so if you pulled this off your pics and help will cut down on the time it takes me to get this done i want that 92 7r back on top all we do in indiana is qtr mile so time to put some busa's and 14's back in there place LOL old school thanks for any help Tony
i want all the pics you can get i have a 92 zx7 i have the 96 zx9 motor in it then i found a crashed 92 zx7r so i took the flatslides off an put them on the 9 its fast but not that fast i will be puting a zx10 motor in the 92 zx7r frame so if you pulled this off your pics and help will cut down on the time it takes me to get this done i want that 92 7r back on top all we do in indiana is qtr mile so time to put some busa's and 14's back in there place LOL old school thanks for any help Tony
Joined
·
89 Posts
I don't know why you say the chassis can't/won't handle the power. Eric Bostrom was running a stroked 800 with enough power to beat out the liter bike and never had chassis failure. Ken Watters ran a turbo with in excess of 200hp and never had chassis failure. The problem isn't the chassis it's the engineering of the modifications that were made to it.
And another thing that bugs me is when people say just sell it put it towards a liter bike. Why? I sell it for say 3k then i need to come up with another 3to4k to get one that hasn't been beat on. A good liter bike runs between 6-8k used. I could buy the motor for 1500 and a few odds and ends and have less than 3k in it. Not to mention i would have a more unique bike than the rest of the crowd.
And another thing that bugs me is when people say just sell it put it towards a liter bike. Why? I sell it for say 3k then i need to come up with another 3to4k to get one that hasn't been beat on. A good liter bike runs between 6-8k used. I could buy the motor for 1500 and a few odds and ends and have less than 3k in it. Not to mention i would have a more unique bike than the rest of the crowd.
Joined
·
13 Posts
92 zx7r with a zx10 motor
i will be starting on the motor swap in about 2 weeks and i will take pics every step of the way Tony
Bringing up an old thread because i am doing this atm, to all those saying it doesnt fit bet you didnt even try, well here is proof no frame cutting, just mount changing, and the brake bar mount ends up as one of the zx10 engine mounting locations, i have a thread up just search my users post or someone link it.
Gone will be the days of the old zx9 conversion welcome to a new era, more responce and power with a lighter motor. i am making all mounts that can be welded in and probably plan on selling them with instructions.
Even the stock zx10 airbox fits with room for a bracket to be made to make use of the zx7 ram tubes. i have a 95zx7 with r1 wheels and r1 swingarm.
![Image]()
Gone will be the days of the old zx9 conversion welcome to a new era, more responce and power with a lighter motor. i am making all mounts that can be welded in and probably plan on selling them with instructions.
Even the stock zx10 airbox fits with room for a bracket to be made to make use of the zx7 ram tubes. i have a 95zx7 with r1 wheels and r1 swingarm.
Joined
·
11,243 Posts
I am with everyone else, the 7R frame is supposed to be one overbuilt, tough mother fucker.
And when you start talking about adding material in the form of modified brackets and shit...I could see it taking the stress just fine.
I know a guy that beats the ever living fuck out of his and doesn't have any problems with the frame cracking and whatnot.
Ok for those of you that are interested. I have done this and ridden the result. The frame has to be seriously modified, new brackets in every location, if you try to use any of the originals the engine will be mis-aligned by about 3mm.
To keep the rotating mass in the original position the engine needs to be further leaned back (upright) than in the photo above, when you do this the head will hit the RH frame spar, and that needs to be modified heavily.
It has taken me 18 months of continuous work every single weekend and most evenings to get mine right....and i mean right.
SO YES...a 2004-2009 engine fits in a 7 R frame, can you use the original mounts? NO, not if you want it to handle the same as an original 7
Does it handle the same? if you can keep the front end on the ground YES.:evil
Does it twist the frame?...haha....NO, although my frame is SERIOUSLY MODIFIED.
Was it worth the time and effort...oh good god yes.
Can you tell it has a 10 engine in from just looking at it? yes if you know what your looking at, you have to modify the bodywork to have enough clearance for the LH genny cover, and depending on the exhaust you choose, you will need to cut away a little bit off of the lower RH fairing as the clearance under the sump isnt enough to allow the exhaust to clear the body work. Like i say, only if you know what your looking at though.
Here she is after the 18 month rebuild and engineering fun and games. Oh i did ALL the work here in my workshop by myself, the only thing i was uncomfortable doing was the alloy welding, so a mate who welds aircraft parts did it for me.
She runs at 187bhp using a Motec M400 ecu in closed loop, A Motec CDL kit logger dash...well the rest you can see
She was in PB magazine here in the UK this month with an 8 page spread and write up.
Have fun and ride safe
![Image]()
![Image]()
![Image]()
![Image]()
To keep the rotating mass in the original position the engine needs to be further leaned back (upright) than in the photo above, when you do this the head will hit the RH frame spar, and that needs to be modified heavily.
It has taken me 18 months of continuous work every single weekend and most evenings to get mine right....and i mean right.
SO YES...a 2004-2009 engine fits in a 7 R frame, can you use the original mounts? NO, not if you want it to handle the same as an original 7
Does it handle the same? if you can keep the front end on the ground YES.:evil
Does it twist the frame?...haha....NO, although my frame is SERIOUSLY MODIFIED.
Was it worth the time and effort...oh good god yes.
Can you tell it has a 10 engine in from just looking at it? yes if you know what your looking at, you have to modify the bodywork to have enough clearance for the LH genny cover, and depending on the exhaust you choose, you will need to cut away a little bit off of the lower RH fairing as the clearance under the sump isnt enough to allow the exhaust to clear the body work. Like i say, only if you know what your looking at though.
Here she is after the 18 month rebuild and engineering fun and games. Oh i did ALL the work here in my workshop by myself, the only thing i was uncomfortable doing was the alloy welding, so a mate who welds aircraft parts did it for me.
She runs at 187bhp using a Motec M400 ecu in closed loop, A Motec CDL kit logger dash...well the rest you can see
She was in PB magazine here in the UK this month with an 8 page spread and write up.
Have fun and ride safe
Joined
·
132 Posts
I thought about this with my zx 6r so far I have found I would have to cut tabs and relocate them and of course the wiring not sure what else gonna check tho
Sent from Motorcycle.com Free App
Sent from Motorcycle.com Free App
21 - 40 of 105 Posts
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
-
?
