Phantom13
Zone Head
Posts: 736
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posted April 07, 2010 05:25 AM
 Edited By: Phantom13 on 7 Apr 2010 13:32
The performance gained is all dependant on the combo and the builder.
I've seen a 212rwhp 1270 that couldn't break 193mph with a former 12 year AMA superbike vet in the saddle, and I've seen a 205rwhp 1287 go 214mph in the standing mile.
The magic is in the cam selection/setup and headwork.
.... And everyone has their own opinion on what's best.
If you're looking to have a big bore 12 built, you want Ace Performance. Fastest big bore 12's anywhere... Track proven, not just dyno tested like most other guys. Bring the bike down to get tuned, you get a GPS'd run to show you REAL gains... Not a dyno sheet that proves nothing.
Prices are lower than most too!
Go to ace performance.com for price list on all engine packages.
____________
"The only place Success comes
before Work is inside the Dictionary."
   
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supra5677
Pro
Posts: 1279
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posted April 07, 2010 12:08 PM
For me an increase from 10,750 to the limiter would be great.. The best gains (cubic inch per cubic inch) was a 1270, with oversize valves, and webcams. This combo made 205 RWHP at 11,600 still climbing! If the rev limiter was increased it would have continued to climb. Improving VE from 10700 to 11600 is important..
supra
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gsxrassassin
Expert Class
Posts: 225
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posted April 09, 2010 03:04 PM
I just PM'd this question to Shiphteey but I may as well ask it here too. I want to do a 1287 kit bit I understand that guys were having gasket problems (blowing them). I'm a street rider, not a drag racer. Were these gaskets letting loose on drag bikes or just street bikes? Thanks.
GSXR
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Over the hump, back up and running again!!
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KZScott
Needs a life
high on speed
Posts: 7235
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posted April 09, 2010 03:21 PM
dont let my build shy you away from a 1287. im not a professional, this is just a hobby. the pros build very streetable 1287s
talk to Sal
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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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gsxrassassin
Expert Class
Posts: 225
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posted April 10, 2010 05:48 PM
quote:
dont let my build shy you away from a 1287. im not a professional, this is just a hobby. the pros build very streetable 1287s
talk to Sal
Thanks Scott. I appreciate it. I think I'm going to take the extra cc's and go with the 1287. I did a lot of going back and forth bewteen the 1270, 1272 and 1287 but I think it's going to be the big one. Thanks.
GSXR
____________
Over the hump, back up and running again!!
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capt10ed
Expert Class
Posts: 327
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posted April 11, 2010 05:33 PM
I have an 04 12 with a 1287 that I purchased from APE 5 years and 15,000 miles ago
NO PROBLEMS
but I did install their HD cylinder studs.
never got around to degreeing the cams and last year I got 185 HP and 105 ft/lbs
____________
2014 Loring AFB 14 runs over 200mph
with a best of 208.1 in 1.5 miles
and 204.5 in the mile.
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KZScott
Needs a life
high on speed
Posts: 7235
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posted April 11, 2010 06:35 PM
what did you tq the studs to?
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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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gsxrassassin
Expert Class
Posts: 225
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posted April 12, 2010 04:52 AM
quote:
I have an 04 12 with a 1287 that I purchased from APE 5 years and 15,000 miles ago
NO PROBLEMS
but I did install their HD cylinder studs.
never got around to degreeing the cams and last year I got 185 HP and 105 ft/lbs
Any work on the head with that? Thanks.
GSXR
____________
Over the hump, back up and running again!!
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KAW BOY J
Parking Attendant
Posts: 1
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posted January 07, 2012 06:06 PM
WHATS ZX GUYS, IM NEW TO THIS SIGHT, AND I WAS WONDERING IF I COULD GET SOME INFO ON WHAT HAS TO BE DONE TO CHANGE A ZX14 MOTOR TO A ZX12 FRAME? THE ZX 12R IS AN 2000, AND THE ZX14R IS AN 2007. PLEASE GIVE IT TO ME IN FUL PLEASE.
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KAW BOY J
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pancho14
Parking Attendant
Posts: 21
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posted January 08, 2012 04:36 AM
forget it save your many and built a stroker Engine 1400ccs the zx12 is the best Engine from all Kawis! The zx14 Engine is the last on the Planet! We Result 252whp on13200 Rpm with the zx12r Stroker 1400ccs nothing has a Change nothing and the Engine is still streetable you can Drive with this From LA to Miami no Problems and very Low Engine degrees under the Half!
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suix
Expert Class
Posts: 122
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posted January 08, 2012 07:39 AM
http://www.bikeland.org/board/viewthread.php?FID=1&TID=43775
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capt10ed
Expert Class
Posts: 327
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posted January 08, 2012 06:35 PM
It has be a while but I believe I went with the recommendation of APE. Which was slightly greater then stock.
The head had the exhaust ports enlarged to match the gasket similarly with the intake.
Other then that ....nothing ......still have not degreed the came....still running STRONG.
I am having way to much FUN
____________
2014 Loring AFB 14 runs over 200mph
with a best of 208.1 in 1.5 miles
and 204.5 in the mile.
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