johns
Expert Class
Posts: 205
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posted October 28, 2005 06:19 PM
 Edited By: johns on 28 Oct 2005 19:21
current 12r performance
I have been away for awhile due to a pretty severe bike accident. Lost my 2000 12R to a guy turning left directly in front of me on a rural Indiana road. When I last was playing the HP game 2-1/2 years ago and lurking around here my Muzzy 1270 was making around 198 HP (stock cams, ported head, Mizzy ti-pipe, Muzzy velocity stacks, power commander ect.). Very streetable modified motor I rode for nearly 15000 miles before the prick took me out. What has happened with Zx-12 performance mods in the last 2 years? Particularly interested in how the stock stroke motors are running theses days.
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2006 ZX-14 (sold)
2012 ZX-14R (Brock's Perf. project bike Louisville Slugger)
2013 Honda VFR1200F
2003 124 C.I. H.D. Super glide
  
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fish_antlers
Administrator
The Truth is Out There
Posts: 21895
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posted October 28, 2005 06:44 PM
Edited By: fish_antlers on 28 Oct 2005 19:44
quote:
What has happened with Zx-12 performance mods in the last 2 years?
This:
ZX-14.com
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What business is it of yours where I'm from, Friendo?
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megabyte
Pro
Posts: 1047
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posted October 28, 2005 07:11 PM
Well, my 2k A model 1361 makes 212 rwhp w/ full akro, pciiir, ported heads, balanced and superteked engine, crankcase mod, and revs to over 12,200 rpm with ecu mod. I've been wondering if the hindle gen 3 street smart system might make more power, and I've been toying with the idea of muzzy cams. Also, Dynojet may have a new power commander that allows you to raise your rev limit. I'm pretty sure my 12 will humble any stock zx-14, and I know it runs away from the GSXrs and the zx-10s. The last 10 I rode with decided to get the jump on me getting on the freeway, and it was no problem reeling him in. While I love my 12, I realzie it's forte is straight lines. On the track, it's no match for the liter bikes. If I had enough money for 2 bikes, I'd buy a 10.
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We First make our habits and then our habits make us.
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johns
Expert Class
Posts: 205
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posted October 30, 2005 06:27 AM
Interesting thing about the new ZX-14 is the dual mufflers. The last time I saw Doug Meyers at the Indinapolis aftermarket show I asked him what one thing he thought Kawasaki could have done to improve the bike. No hesitation he said two mufflers like the Hyabusa.
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2006 ZX-14 (sold)
2012 ZX-14R (Brock's Perf. project bike Louisville Slugger)
2013 Honda VFR1200F
2003 124 C.I. H.D. Super glide
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psycho1122
Pro
Posts: 1608
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posted October 30, 2005 06:42 AM
Exactly!! That was the only restriction on the 2000 12.
That is how KHI "slowed down the 12 a bit". It would have run anywhere in the mid to upper 190's with a less resrictive exhaust.
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You say PSYCHO like it's a BAD thing!!
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johns
Expert Class
Posts: 205
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posted October 30, 2005 06:45 AM
original question
I am still curious about my original question. What kind of power are you guys (or gals ZX-12 girl) getting out of the 1270's, or any size stock stroke, motors theses days. I saw as high as 204 uncorrected HP from my motor in very streetable form and am wondering what improvements have been made or has the game moved to larger displacement stroker motors for the street. I read somewhere here a reference to a rpm extender to allow the motor to spin higher? A couple of years ago Doug Meyer told me he expected Dynojet to make a module with this feature, is this available from them now?
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2006 ZX-14 (sold)
2012 ZX-14R (Brock's Perf. project bike Louisville Slugger)
2013 Honda VFR1200F
2003 124 C.I. H.D. Super glide
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psycho1122
Pro
Posts: 1608
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posted October 30, 2005 07:09 AM
My 1270 has had two configurations:
1 - with Cam timing at 105.5 in. / 100 ex. , +2.5 timing and cylinder pressure at 230 psi per hole cold....Power was: 202.43 @ 11,300 / 160 h.p. @ 7,950 / 100 h.p. @ 5,650
Torque was: 110.28 @ 7,500 / 100 ft. lbs. @ 7,100 / 80 ft. lbs. @ 4,200
2 - cam timing with a touch less overlap, +4 timing and cylinder pressure at 245 psi per hole cold....Power is: 192.39 @ 10,300 / 160 h.p. @ 7,600 / 100 h.p. @ 5,100
Torque is: 111.48 @ 7,500 / 100 ft. lbs. @ 4,700 / 97 ft. lbs. @ 3,800
Current configuration has more thrust under peak, but less peak power. It also reaches peak power 1,000 prm sooner.
Which is Better?!?
Both combo's are fast as hell !! Gearing overall needs to be different for each combo.
Pick Your Poison.
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You say PSYCHO like it's a BAD thing!!
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trenace
Needs a job
Posts: 3056
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posted October 30, 2005 02:42 PM
Psycho, thanks for that data. That definitely shows I need to do what I was planning, which was to degree and map to two different "optima" at a day at the dyno -- one a pure top speed cam timing, and the other a street timing.
Very impressive difference you saw between those configurations -- e.g. 80 ft lb at 4200 rpm for the high-end timing vs 97 ft lb at 3800 for the torquier timing.
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frEEk
Administrator
ummm... yeah
Posts: 9660
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posted October 30, 2005 04:17 PM
very interesting indeed psycho. those differences are huge!
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johns
Expert Class
Posts: 205
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posted October 30, 2005 05:17 PM
Interesting Psycho, I got almost identical power at 105 intake CL and 100 exh CL with 4 degrees of Ign. advance. Peak power was at 11400 rpm. The power was almost flat from 11000 to 11400 and dropped only slightly at rev limit cutoff. This indicates that in my state of tune increasing the rev limit would not have helped peak power with theses cam timing specs. I also tried similar cam timing specs (decreased overlap) to increase mid range. At theses power levels the bike was useless in the first two gears. If the front wheel is pointed straight up you are not getting down the quarter mile quickly.
____________
2006 ZX-14 (sold)
2012 ZX-14R (Brock's Perf. project bike Louisville Slugger)
2013 Honda VFR1200F
2003 124 C.I. H.D. Super glide
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rc51eviltwin
Novice Class
Posts: 44
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posted November 01, 2005 06:18 PM
quote:
My 1270 has had two configurations:
1 - with Cam timing at 105.5 in. / 100 ex. , +2.5 timing and cylinder pressure at 230 psi per hole cold....Power was: 202.43 @ 11,300 / 160 h.p. @ 7,950 / 100 h.p. @ 5,650
Torque was: 110.28 @ 7,500 / 100 ft. lbs. @ 7,100 / 80 ft. lbs. @ 4,200
2 - cam timing with a touch less overlap, +4 timing and cylinder pressure at 245 psi per hole cold....Power is: 192.39 @ 10,300 / 160 h.p. @ 7,600 / 100 h.p. @ 5,100
Torque is: 111.48 @ 7,500 / 100 ft. lbs. @ 4,700 / 97 ft. lbs. @ 3,800
Current configuration has more thrust under peak, but less peak power. It also reaches peak power 1,000 prm sooner.
Which is Better?!?
Both combo's are fast as hell !! Gearing overall needs to be different for each combo.
Pick Your Poison.
ok,so i have a 2000 model zx12 nothing major done just the power commander and full Akra evolution titanium system.if i went with the 1270 kit from Muzzy how close should i get to these figures.
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2000 ZX12r>>sold
2001 RC51>>sold
1988 FLSTC>>sold
2004 ZX10>>sold
'07 GSXR 1000
"05 CBR 1000
'89 NSR 250
'05 metrakit
'03 SV 650
'01 FLTRI
'07 custom hardtail
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psycho1122
Pro
Posts: 1608
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posted November 02, 2005 07:51 AM
That will depend on your assembly process. Overall compression, cam timing, piston - to - head clearance and other "little" details that allow more reliability and power. Don't forget the Muzzy fuel pump!
ALSO! My map done at North Valley Honda here in Phoenix helped 
However, your Akra pipe will hurt your bottom end torque #'s.
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You say PSYCHO like it's a BAD thing!!
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VincentHill
Needs a life
Posts: 6520
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posted November 02, 2005 10:59 AM
With just BMC Race Filters, PC3r Bear Short stacks and Step Tube Hindle I got 183 SAE HP Who cares uncorrected
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Made History @ Daytona and still one fast old man!!
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