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New here, Turbo zx12r

This is a discussion on New here, Turbo zx12r within the ZX-12R forums, part of the Kawasaki Motorcycles category; On 8 psi, what should the fuel pressure be, I'm assuming 48 psi. It has an boost reference regulator that doesn't seem to work the ...


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Old 09-09-2011, 04:04 PM   #31
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On 8 psi, what should the fuel pressure be, I'm assuming 48 psi. It has an boost reference regulator that doesn't seem to work the best.
   
 
Old 09-09-2011, 09:57 PM   #32
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if your base pressure is 40 psi, and its a 1:1 reg then yes 48psi would be right at 8 pounds of boost, but whats right depends on how it was set up. base pressure may be higher or lower than 40.

what reg do you have?
   
 
Old 09-09-2011, 09:57 PM   #33
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Quote:
On 8 psi, what should the fuel pressure be, I'm assuming 48 psi. It has an boost reference regulator that doesn't seem to work the best.
if your not happy with the rising rate reg i would change it as it can be the down fall of the motor!! as for the fuel presure every pound of boost you have to add on to the fuel presure EXAMLE with a blow throw carb it runs 8 to 9 psi unboosted but if your running 20 psi of boost it has to be around 28/29 psi of fuel presure the same applies with fuel injection

Last edited by maxumis; 09-09-2011 at 11:27 PM.
   
 
Old 09-15-2011, 04:35 AM   #34
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Now get that arm powdercoated black next...that's a must.
   
 
Old 09-15-2011, 01:08 PM   #35
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gateway

Quote:
Thanks I spent an hour reading about yours, nice progress you made over the years, I'd like to do the same but our local track is closed down.
I am guessing your talking about gateway? I heard that there is new track opening on north side of stl. you going to be riding in ROC this weekend?? should be mayhem... last year was fun.. I have been taking my 12 down there for 3 years now.. and so far have been only one i have seen.. but lots of bikes show up i could have missed one.
   
 
Old 09-18-2011, 07:44 PM   #36
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Very nice bike ya got there!
   
 
Old 05-13-2014, 08:16 AM   #37
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Bike sat for last 18 months or so just needing a oil return pump and battery. I replaced those two items and I"m planing on taking it to track tomorrow depending on if it rains or not.

Been working on wiring issues, cleaning every thing up nice. Got air shifter working nice, have a sensor on the way to automatically control my air pressure. Had to replace the air compressor yesterday after I accidentally left it on too long.

Normally its on 8 psi, it runs pretty decent but I'm looking at turning it up a little more. What kinda power should stock injectors support? Also what injectors should I be looking at too support 350 rwhp. Would stock zx14 injectors do it?
   
 
Old 05-13-2014, 02:48 PM   #38
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it depends on what type of fuel system you have. need details. fmu? 1:1, secondarys? pc5 with boost fuel table?
   
 
Old 05-13-2014, 04:20 PM   #39
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From: Stl, Mo Area
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Quote:
it depends on what type of fuel system you have. need details. fmu? 1:1, secondarys? pc5 with boost fuel table?
It's a fmu that's adjustable, I think it can go as much as 5 psi per pound of boost.

Looking at the power commander V. The boost features are what I'd want it for. I don't see any advantage to going from a power commander 3 to that. Other then my lcd-200 being able to plug into it.
   
 
Old 05-13-2014, 07:19 PM   #40
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what pump? most are just about done at 100 psi, meaning about 10 psi boost is about the max you can run with that type of system
   
 
Old 05-13-2014, 09:22 PM   #41
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From: Stl, Mo Area
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what pump? most are just about done at 100 psi, meaning about 10 psi boost is about the max you can run with that type of system
In tank walbro 255
   
 
Old 05-14-2014, 01:25 PM   #42
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Well I got the air pressure switch installed, I can get 5 shifts starting from full pressure before the pump kicks back on at 115 psi. So as long as I'm at full pressure the pump won't kick on during a run, also have a switch that disables the pump all together.

My sd card for the dynojet wideband data logger will be here Friday. I'm also planning on coding my own datalogger that will be able to do histograms, since I tune alot of cars with hp tuners. Histograms will be the way to go and I'll have 50 in parts for the datalogger that will log my afr, tps and rpm. Making it easy to just go for a long ride, pull up the histogram get all the avgs and correct the map and get it very accurate. trying to get 35 - 40 mpg out of this bike.

I had it dyno tuned for 8 psi however the tune was pretty far off for every thing but WOT. Was at 11.8 afr at 55 mph and up. Struggled to get 25 mpg like that.

I have the dynojet wideband analog wire hooked up to the middle wire on my tps, I calibrated it and everything however it's not working correctly. Anyone have this issue before? I have the wideband grounds directly to battery then a 12 gauge primary wire straight to battery on a relay and fuse. The tps reading jumps all over the place :(.
   
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