ZX11/ZX7R engine swap---Help! - Sportbikes.net
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post #1 of 9 (permalink) Old 09-12-2005, 06:21 AM Thread Starter
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ZX11/ZX7R engine swap---Help!

Ok guys,
I just got my bike back, engine is thumpin silly style, I dont like it. I am suspecting piston slap.
Well I had a zx9 engine, but my friend got arrested, he was rebuilding it and lets just say its evidence now.
SOoooooo I want to shoe horn a ZX11 engine in there. I want a 1990 engine or anything within the range.
Now I know it will fit with mods, or hell might even be a bolt up (doubt it) But can anyone with a ZX11 give me some advice.
It IS going to happen, I just need to tips and tricks.
1990 Zx11 HP was 145 and torque was at 80lbs...so...anyone?
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post #2 of 9 (permalink) Old 09-12-2005, 07:12 AM
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Good luck with that. I've got a -9 motor in my frame and the head barely fits between the frame rails. If it was any taller and I would not have been able to reuse the airbox. Even the newer ('98 up) ZX-9R motors are too wide to fit the frame. There is a ton of inforamtion about the ZX-9 motor swap, but I've never heard of anyone putting a ZX-11 motor in one. It'll most likely involve a sawzall and some good welding technique. Would be pretty killer though. Keep us posted on how that goes.

Old enough to know better, still too young to care!!!
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post #3 of 9 (permalink) Old 09-12-2005, 09:02 AM Thread Starter
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Hmmph I need some more power..!!!!! szasaw....hmmm
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post #4 of 9 (permalink) Old 09-12-2005, 11:07 AM
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Why don't you put a ZX-9 motor in it and tune the crap out of it? 2mm over-bore and it's a 950cc motor that'll put out close to 145rwhp. New cams, lightened crank, etc. I bet that motor is capable of 150+. It would most definitely be easier than modifying the frame to accept a ZX-11 motor.

Old enough to know better, still too young to care!!!
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post #5 of 9 (permalink) Old 09-12-2005, 06:52 PM
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Quote:
Originally Posted by beowulf2k
Ok guys,
I just got my bike back, engine is thumpin silly style, I dont like it. I am suspecting piston slap.
Well I had a zx9 engine, but my friend got arrested, he was rebuilding it and lets just say its evidence now.
SOoooooo I want to shoe horn a ZX11 engine in there. I want a 1990 engine or anything within the range.
Now I know it will fit with mods, or hell might even be a bolt up (doubt it) But can anyone with a ZX11 give me some advice.
It IS going to happen, I just need to tips and tricks.
1990 Zx11 HP was 145 and torque was at 80lbs...so...anyone?
My '99 ZX-11 dynoed 133.8 HP stone stock. I don't see 145 RWHP without some expensive mods. Personally, this sounds like a piss in the wind. We put an older air cooled GSX-R 1100 in my son's 600 Katana but that's a bolt up with a little top frame brace modification. The top of the engine and maybe the width is probably going to hang you up. You'll need a ZX-11 header to fit the engine. I got one left over when I bought my Muzzy system.
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post #6 of 9 (permalink) Old 09-12-2005, 09:54 PM Thread Starter
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Quote:
Originally Posted by Zixxer10
My '99 ZX-11 dynoed 133.8 HP stone stock. I don't see 145 RWHP without some expensive mods. Personally, this sounds like a piss in the wind. We put an older air cooled GSX-R 1100 in my son's 600 Katana but that's a bolt up with a little top frame brace modification. The top of the engine and maybe the width is probably going to hang you up. You'll need a ZX-11 header to fit the engine. I got one left over when I bought my Muzzy system.
I think my numbers were from the crank. I suppose I will go with a zx9 engine, now to find one.........
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post #7 of 9 (permalink) Old 09-14-2005, 10:18 AM
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Quote:
Originally Posted by beowulf2k
I think my numbers were from the crank. I suppose I will go with a zx9 engine, now to find one.........
I'm debating doing the swap this winter into my '00 but wasn't sure where to start looking for an engine. I assume ebay isn't the only option, but what other sites are there out there to find bike engines on?

-Todd
http://forums.bimmerforums.com/forum...d.php?t=312996

'00 ZX7R - mostly stock
'96 BMW 328is - some stuff
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post #8 of 9 (permalink) Old 09-18-2005, 12:03 AM
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here you go
every thing you need
$2000. takes it all
http://www.nmraonline.com/media/zx9sale/index.php

Last edited by kre racing; 09-20-2005 at 10:08 PM.
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post #9 of 9 (permalink) Old 09-18-2005, 12:06 AM
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..

Last edited by kre racing; 09-20-2005 at 10:07 PM.
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