Author Topic: ZX-12R Build (Read 22368 times) Tweet

Busashot · « **Reply #25 on:** July 05, 2008, 01:00:35 PM »

I don't about the stroked 12s but my buddy has a superbuilt 1290. Carpenter based build but also has lightnened crank, removed counter balancer, falicon knife edged rods, 14-1 JE pistons, blah, blah blah. 200hp NA and 285hp on bottle. Not torquey like the Busa or 14 but certainly revs fast and scoots as well.

jarim · « **Reply #26 on:** July 05, 2008, 01:04:04 PM »

The 1430cc 12R I'm referring to was first seen by me on 2006 top speed test day and has been in all-round-use since those days without problems so by all means it's not a bad choice. Engine felt very strong and fresh but still is slower than Busa, much to do with aerodynamics indeed.

FastBikes4Life · « **Reply #27 on:** July 05, 2008, 01:28:52 PM »

Quote from: jarim on July 05, 2008, 01:04:04 PM

The 1430cc 12R I'm referring to was first seen by me on 2006 top speed test day and has been in all-round-use since those days without problems so by all means it's not a bad choice. Engine felt very strong and fresh but still is slower than Busa, much to do with aerodynamics indeed.

Yah, if I was going with a top speed bike I'd have to go Hayabusa. You simply can't beat the aerodynamic package of the bike. But this ZX-12R will be just fine for riding around town with a few quick blasts against my buddies on their Busas and 1000s.

It's kinda' funny because when I first got the bike my buddy and I ran hard from Chicago Cycle (north side) down to 79th and Stoney (White Castle where all the bikes hang out). He was on his '05 R1 Black Raven and here I am on a '00 ZX-12R with no plastics and a lame 4th gear. I was right with him in the corners and pulling him hard on the straights. I was able to get in front of him through an "S" curve and never looked back. He was suprised (and so was I). I fell in love with the bike that day and decided to bring it back to its former glory (if it ever had any).

Fast

TRNorBRN6001 · « **Reply #28 on:** July 09, 2008, 11:32:37 AM »

JohnnyCheese Built 1375 ZX-12 street bike a few visits to the Texas mile, best to date 202.5mph, 4k street miles, a visit to Maxton, best run 210.4mph. Still running strong. I live in Texas where its freaking hot! Plus I weight around 250lbs. It's all in the builder, cause it sure ain't me!!!!!!!

FastBikes4Life · « **Reply #29 on:** July 09, 2008, 10:59:11 PM »

Quote from: TRNorBRN6001 on July 09, 2008, 11:32:37 AM

JohnnyCheese Built 1375 ZX-12 street bike a few visits to the Texas mile, best to date 202.5mph, 4k street miles, a visit to Maxton, best run 210.4mph. Still running strong. I live in Texas where its freaking hot! Plus I weight around 250lbs. It's all in the builder, cause it sure ain't me!!!!!!!

Orient Express does a +3mm stroker crank for the ZX-12R. Not as radical as the +4.6 piece Muzzys does but underneath a 1287cc block with Orient Express cams it would make for a potent package. I'm really thinking about going with that set up. I've had a lot of guys tell me that's the move to make. I might go for it. the only problem is Muzzys 4.6mm crank job is $850 but Orient Express' 3mm crank is $1100. Oh well, I guess you have to pay for what you really want, right?

Fast

TRNorBRN6001 · « **Reply #30 on:** July 09, 2008, 11:37:23 PM »

Marine Crank can weld you up whatever stroke you like for a very resonable price. Just pick up a used crank with a bad rod journal and send it off.................less down time. Tell Dave Eden I sent ya as well. I'll say it again though, it's all in the builder. You just can't have any motorcycle guy/shop build you a motor that makes power and lasts. Plus it helps to be familiar with the motor, cause they all have different tricks and trade secrets.

Oops, forgot to mention above a ton of dyno runs on that 1375 as well.

Good luck and keep us up to date on your build,

Gary

THE ICE MAN · « **Reply #31 on:** July 10, 2008, 02:24:18 AM »

Here at Ace Performance we built (2) stage 2 ZX12's that are 3 mill over to a 1287cc
Ran them at Maxton (all motor) 205.6 on the clocks and the other 1287cc I was under geared
and ran into the rev limiter all motor also that bike ran a 203.6 on GPS before the 1st timing light
at Maxton bouncing on and off the limiter the clocks only gave us 200 MPH
Next meet they will be running a bit faster as we did some testing on our stage 3 head with good results

Sal.

FastBikes4Life · « **Reply #32 on:** July 10, 2008, 11:07:00 AM »

Quote from: TRNorBRN6001 on July 09, 2008, 11:37:23 PM

Marine Crank can weld you up whatever stroke you like for a very resonable price. Just pick up a used crank with a bad rod journal and send it off.................less down time. Tell Dave Eden I sent ya as well. I'll say it again though, it's all in the builder. You just can't have any motorcycle guy/shop build you a motor that makes power and lasts. Plus it helps to be familiar with the motor, cause they all have different tricks and trade secrets.

Oops, forgot to mention above a ton of dyno runs on that 1375 as well.

Good luck and keep us up to date on your build,

Gary

Gotta' website for Marine Crank? I have a 2000 ZX-12R crank sitting in my living room right now. I was torn between shipping it to Orient Express and paying $1100 plus S&H for the 3mm stroke or putting it back on Ebay and selling it as is. Nothing wrong with the crank at all, just kept hearing bad things about stroked motors. Even Billy (my builder/tuner) told me strokers put a lot of wear and tear on a motor ridden on the streets. He said stroking is great for dragging but not so good for continued street riding. He completely supports the idea of boring and going with a set of worked cams. He's even mentioned sending the head out for work but he's against stroking the motor.

Fast

TRNorBRN6001 · « **Reply #33 on:** July 10, 2008, 11:57:35 AM »

http://www.marinecrankshaftinc.com

(714) 549 2388

Your builder is right, anytime you add more performance to your bike the longevity decreases by some degree, but the torque from a stroker on the street sure is nice. Check out Dragbikezone.com for info on ZX-12 builds.

Just to let you know, JC only does this as a hobby so he is particular on what he works on. I am sure Sal could hook you up.

Be sure you figure out what you want the bike to do first. It's not easy building a street bike to race.

Gary

entropy · « **Reply #34 on:** July 10, 2008, 01:53:52 PM »

yep,
plug into David Eden at Marine and you will be happy you did.

david says it's take 2-3 weeks you are guaranteed to get it within 21 days, and it will be right.

A bunch of us zx12 (Bikeland-ers) have used Marine multiple times and i don't know of 1 disatisfied customer.

TRNorBRN6001 · « **Reply #35 on:** July 11, 2008, 12:37:40 AM »

Entropy is the man, he has put out the most HP from an N/A ZX-12 I have seen................but
not for hire, unless he quits his day job. Like he said some real good info for 12's on bikeland.

FastBikes4Life · « **Reply #36 on:** July 11, 2008, 01:39:55 PM »

Quote from: TRNorBRN6001 on July 11, 2008, 12:37:40 AM

Entropy is the man, he has put out the most HP from an N/A ZX-12 I have seen................but
not for hire, unless he quits his day job. Like he said some real good info for 12's on bikeland.

Entopy's already helped me out in planning this project. I turned to him for some assistance and he was spot-on from the very first answer he gave me about what I should be thinking. I appreciate everybody else's help too. I want this thing to be fast but I also want it to be tight. Speed is great but speed and longevity are outstanding.

Fast

FastBikes4Life · « **Reply #37 on:** July 11, 2008, 01:41:02 PM »

Quote from: TRNorBRN6001 on July 10, 2008, 11:57:35 AM

http://www.marinecrankshaftinc.com

(714) 549 2388

Your builder is right, anytime you add more performance to your bike the longevity decreases by some degree, but the torque from a stroker on the street sure is nice. Check out Dragbikezone.com for info on ZX-12 builds.

Just to let you know, JC only does this as a hobby so he is particular on what he works on. I am sure Sal could hook you up.

Be sure you figure out what you want the bike to do first. It's not easy building a street bike to race.

Gary

Thank you very much. I will be calling TODAY!

Fast

FastBikes4Life · « **Reply #38 on:** July 17, 2008, 12:49:19 PM »

After researching, reading, discussing and thinking deeply, I've decided not to stroke the ZX-12R. I'm going with a 1287 big bore kit, the Orient Express cams, the PCIII, -1 in the front, BMC Race filters (or shaved screens), Muzzy stainless and some dyno tuning. While the engine is apart I'd like to have some mild porting done to the head - nothing serious or wild, just a smoothing job. Any information is welcomed.

Fast

TRNorBRN6001 · « **Reply #39 on:** July 17, 2008, 07:16:13 PM »

I think that is a very good choice. Maybe a clutch basket, rod bolts, valve springs, and a little touch of dry nos to get you scooting on the occasion. Keep the quench tight and the compression on the high side..........It'll fly.

PS: I have a Muzzy pipe...................... but most ZX-12 owners agree the Akro pipe is better for the street.

Gary

Competition CNC · « **Reply #40 on:** July 18, 2008, 10:46:21 AM »

Quote from: FastBikes4Life on July 17, 2008, 12:49:19 PM

After researching, reading, discussing and thinking deeply, I've decided not to stroke the ZX-12R. I'm going with a 1287 big bore kit, the Orient Express cams, the PCIII, -1 in the front, BMC Race filters (or shaved screens), Muzzy stainless and some dyno tuning. While the engine is apart I'd like to have some mild porting done to the head - nothing serious or wild, just a smoothing job. Any information is welcomed.

Fast

Just thought I'd mention.... We have 2 versions of zx12r ports we CNC cut for the zx12r head. One is for street/1287 and the other is for a stroker/1375+ for big peak power numbers.

Entropy has the larger port version......

TRNorBRN6001 · « **Reply #41 on:** July 18, 2008, 01:06:34 PM »

Yep, Jim will take care of you too.

FastBikes4Life · « **Reply #42 on:** July 18, 2008, 02:10:05 PM »

Quote from: Y2KZX12R on July 18, 2008, 10:46:21 AM

Quote from: FastBikes4Life on July 17, 2008, 12:49:19 PM
After researching, reading, discussing and thinking deeply, I've decided not to stroke the ZX-12R. I'm going with a 1287 big bore kit, the Orient Express cams, the PCIII, -1 in the front, BMC Race filters (or shaved screens), Muzzy stainless and some dyno tuning. While the engine is apart I'd like to have some mild porting done to the head - nothing serious or wild, just a smoothing job. Any information is welcomed.

Fast

Just thought I'd mention.... We have 2 versions of zx12r ports we CNC cut for the zx12r head. One is for street/1287 and the other is for a stroker/1375+ for big peak power numbers.

Entropy has the larger port version......

I just dropped off an inquiry in your company email inbox. Thanks.

Fast

FastBikes4Life · « **Reply #43 on:** August 04, 2008, 05:46:04 PM »

I just wanted to thank everybody for their help and input. Spoke with my tuner and he does a nice little street port and valve job so I'm having him add it to the tab. This thing's going to scream when it's finished.

Funniest thing though, I've been paying more and more attention to the ZX-14 and thinking about it seriously. I know the bike is stout but I also know it takes some doing to get the power out of it. You guys think it's worth pursuing a 14 once the 12 is finished?

Fast

FastBikes4Life · « **Reply #44 on:** August 14, 2008, 05:41:50 PM »

Orient Express called me back. The cams are on their way to Sweet Home Chicago as I write this. Now begins the penny-pinching over the winter to get the real work done. can't wait to put this thing on the street in all it s glory!!

Fast

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Author Topic: ZX-12R Build (Read 22368 times) Tweet