SteddyTeddy
Pro
Posts: 1664
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posted December 21, 2008 09:09 AM
 Edited By: SteddyTeddy on 21 Dec 2008 17:10
ZRX build
Well I see lots of post of ZX12 builds so I thought I would post up my ZRX build I just finished. 1307cc stroker motor. Started with a + 4mm stroked(63.4mm), lightened and ballanced crank done by Jay at APE. Shot peened stock rods. Next installed a ZX11 6 speed with ceramic bearings and race cut by MRE. New oil pump and shimmed the pressure relief valve to up oil pressure. Billet ZX11 clutch basket from Falicon. Jugs were bored by Millennium + 2mm(81mm) to fit JE pistons with thermal barrier and skirt coatings. 12.5:1 CR. Base spacer and head gasket from Cometic. Studs from APE. Head is ported with a fresh valve job. Double springs from Kibble White with aluminum Busa retainers. Cams are Yosh ST-1's set at 105/102. Ignition is a Dyna set to 35* for now. Engine is fed by 41mm FCR's and is dumped into a Akropovic exhaust.
  
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KZScott
Needs a life
high on speed
Posts: 7235
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posted December 21, 2008 10:28 AM
VERY nice! what kind/brand of coatings are you using on the pistons?
will you be spraying more nitrous than you were previously? (you were spraying a stock motor before right?)
any more pics of the combustion chambers?
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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entropy
Moderator
Posts: 8671
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posted December 21, 2008 12:05 PM
+1, VERY nice.
One o' these days i'm gonna get me a naked bike.
Love that ZRX of ST's !! 
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This moderator uses moderation in moderation
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salsa1
Needs a life
Posts: 5971
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posted December 21, 2008 01:57 PM
How much did the mods cost if that can be asked...
Nice work.....
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Salsa1
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SteddyTeddy
Pro
Posts: 1664
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posted December 21, 2008 03:39 PM
JE did the coatings. Thermal on top and tuff skirt on the sides. I have the NOS system off the bike right now. Not sure if I want to put it back on. I rarely ever used it and if it goes back on a lockup will have to go on with it. Been slowly collecting parts and working on this for about 2 years. Still have a big valve head to complete and install to finish it all off. I ran a couple 9.48's over the weekend with really bad front half's. The rear tire was bottoming out and causing it to buck all over the place. Time to get a shock properly setup. Price......$4K and still going. I stopped keeping track off how much money I had in the bike total a long time ago. 
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Stuart Racing
Zone Head
N.H.R.A . Dragracing.
Posts: 999
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posted December 21, 2008 04:56 PM
Verrry nice Ted...Looks like a clean build...Nice parts...How was it to dial in the carbs????Let me know if you want to get this ZX11 lockup I have,you might like it even if you don`t run any n20.....I don`t need to tell ya what it could do for your 60` times....
That crank is a peice of fine art,to bad it`s INSIDE the motor...
Good luck with it,
Paul.....
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Life in the Fast Lane..........
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TRNorBRN6001
Needs a job
Posts: 2021
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posted December 21, 2008 06:08 PM
Very, Very nice!!!
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TFA 200MPH CLUB MEMBER!
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KZScott
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high on speed
Posts: 7235
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posted December 21, 2008 06:34 PM
I have a question about the oil holes on the crank. they look like they have a "tail" I assume its for better oiling?
I prefer to have my bling between the oil pan and valve cover too 
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01 ZX-12R 8.84 @ 156.3 no bars, DOT tires. Pump Gas, NA.... turbo 8.47 @ 164.
00 ZX-12R 8.62 @ 165.2 no bars, slicks, Pump Gas, 55 shot.... turbo 8.32 @173
00 ZX-12R Fastest NA Kawasaki in the world 1: 222.046 1.5: 226.390 Loring AFB
00 ZX-12R street turbo 1: 227.9 1.5: 234.1 Loring AFB
00 ZX-12R LSR turbo 1: 263.1 1.5: 266.5 Loring AFB Worlds fastest ZX-12R
CMG Racing RCC Turbos
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SteddyTeddy
Pro
Posts: 1664
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posted December 21, 2008 08:00 PM
Edited By: SteddyTeddy on 22 Dec 2008 04:02
quote:
I have a question about the oil holes on the crank. they look like they have a "tail" I assume its for better oiling?
I prefer to have my bling between the oil pan and valve cover too
They are toward the rotation to help force oil into the holes. One of the tricks I found on the ZRXOA and also something APE does to all their cranks. The carbs were pretty much setup when I got them but I've done some fine tuning. They are really easy to tune.
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flite leader
Zone Head
Posts: 651
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posted December 22, 2008 11:25 AM
very nice build........luv those FCRs
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bend your mind.....
or break your ass...!!
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ZRXDean
Needs a job
Posts: 2225
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posted December 22, 2008 11:44 AM
Looks good Ted. What are you shooting for in compression ratio? Are those cams longer duration than ZX11s? -Dean
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SteddyTeddy
Pro
Posts: 1664
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posted December 22, 2008 11:56 AM
Compression is 12.5, actually with this head it's just a little higher. The head has .010" shaved off. Yes the Yosh cams are higher lift and longer duration than the ZZR or ZX11 cams. They really start making power at 7K rpms. Need to get it on a dyno here in the next couple weeks and play with a few things. Just guessing but I think HP will be in the mid 170's with TQ over 100 ft-lbs.
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VincentHill
Needs a life
Posts: 6520
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posted December 22, 2008 03:17 PM
You may also want to speak to Brock and get one of the New Brock by Hindle Step tube Exhaust for a ZRX that a "LOT" of testing was done on. it is a 4-2-1 that also uses a Step Mid Pipe so that the Megaphone "OR" Oval Race Muffler can be use! I did a lot of testing and it made 7 HP "More" than the 133 I was already making with the standard Hindle 4-2-1 Exhaust. I have a standard engine ZRX1100 with the ZX11 cams and a Modified Airbos with a Large Filter. This was a Very Stingy Dyno. On a "Normal Dyno" It made 144 HP SAE and 148 HP Std.
Very NICE Job!!
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Made History @ Daytona and still one fast old man!!
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SteddyTeddy
Pro
Posts: 1664
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posted December 23, 2008 03:45 PM
quote:
Verrry nice Ted...Looks like a clean build...Nice parts...How was it to dial in the carbs????Let me know if you want to get this ZX11 lockup I have,you might like it even if you don`t run any n20.....I don`t need to tell ya what it could do for your 60` times....
That crank is a peice of fine art,to bad it`s INSIDE the motor...
Good luck with it,
Paul.....
Paul let me know what you need for the lockup.
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gilberjj
Needs a job
Friend of Fast
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posted December 28, 2008 10:08 AM
those long tube headers look INCREDIBLE!!!! that akro system looks A+
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Hindle
Parking Attendant
Posts: 9
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posted January 29, 2009 07:58 AM
The ZRX step pipe is now in production and will be shipped to Brock some time next month. We are going to offer the generation 3 system (muffler) or the street megaphone system with the option of black ceramic coating. Contact Brock at (937)912-0054 for prices and more info.
Lee Hindle
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SteddyTeddy
Pro
Posts: 1664
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posted January 29, 2009 08:58 AM
Edited By: SteddyTeddy on 29 Jan 2009 16:58
Lee can you tell me what size head pipes you are using on this system?
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smokinZX14
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posted January 29, 2009 03:58 PM
Teddy don't forget to pay pal me for the lockup clutch set up....0.75 US ... lol...
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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whitehendrix
Zone Head
fails!
Posts: 757
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posted January 29, 2009 05:01 PM
awesome job man!! didn't know the ZX11 stuff fit or offered any benefit to the Z-Rex.. interesting stuff!
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Duct tape is the handyman's secret
weapon. The black is for formal
occasions. - ZRXDean
ill never own a busa unless
someone gives me one.... and then
ill sell it -KZScott
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SteddyTeddy
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Posts: 1664
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posted January 30, 2009 05:15 AM
Edited By: SteddyTeddy on 30 Jan 2009 13:17
These engines are based off the ZX11's so many pieces are a direct swap. The 1200's though have a wider bore spacing. Also the gear pitch on the crank gear and clutch baskets is different from the ZX to the ZRX's. Also have to give to thanks to Dean for letting me pick his brain on a few issues over the past couple years.
Smokin how about I just buy you a hot dog? 
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smokinZX14
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Posts: 10197
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posted January 30, 2009 03:23 PM
quote:
These engines are based off the ZX11's so many pieces are a direct swap. The 1200's though have a wider bore spacing. Also the gear pitch on the crank gear and clutch baskets is different from the ZX to the ZRX's. Also have to give to thanks to Dean for letting me pick his brain on a few issues over the past couple years.
Smokin how about I just buy you a hot dog?
That is fine ...lol Tommy owes me two hot dogs and a coke for installing his Air Shifter ..  I see what you guys are up to , fatten me up with hot dogs and slow me down ..
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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SteddyTeddy
Pro
Posts: 1664
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posted May 04, 2009 02:04 PM
Edited By: SteddyTeddy on 4 May 2009 22:05
Thanks to Hindle and Brock for the new ZRX exhaust, I found some more power. 179.28hp @ 101.13 Ft-lbs of TQ. 93 octane pump gas and Mobil one 10w30 oil. Still needs a little fine tuning to try and level out that fuel curve.
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NOX
Needs a job
PMRA / TMRC Super Street 4022
Posts: 3745
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posted May 04, 2009 04:25 PM
Get a sidewinder and slam that thing!!!!!!
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21 Runner-ups
2010 TMRC Super Street Points Champion
2010 PMRA Super Street #3 Points
2009 PMRA Super Street Points Runner-Up
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SteddyTeddy
Pro
Posts: 1664
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posted May 04, 2009 06:44 PM
Nobody makes a sidewinder for the ZRX anymore and getting someone to sell theirs is damn near impossible. I got it as low as it will go without doing frame work. It's still my street bike so neither are an option. I'll get it in the 9.10's yet then put the wet kit back on and join the 8 second club.
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ZRXDean
Needs a job
Posts: 2225
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posted May 04, 2009 07:45 PM
Great power, congrats Ted. Let's see the new pipe, and maybe a pic of the bike strapped down for the track. Looks badass.
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