megabyte
Pro
Posts: 1047
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posted May 11, 2006 09:09 AM
Dry Nitrous
Does the dry Muzzy kit also take advantage of fuel injection sensors to add gas like the MPS system?
The MPS Dry Nitrous Kit was designed to easily increase horsepower of a four cylinder fuel injected motorcycle. By allowing the nitrous to pass the fuel injection sensors in the air box the factory fuel injection can compensate with more fuel for small shots of nitrous. These Dry Nitrous Kits exploit that ability and yield between 20 and 40 horsepower. They are strictly for fuel injected motorcycles
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We First make our habits and then our habits make us.
  
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rac4it
Needs a job
Bergie
Posts: 3009
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posted May 15, 2006 07:18 AM
All dry kits are the same. Get whichever one is cheaper or fab it yourself.
Dry kits can make 30-70hp on a stock 12, or upto 110hp on a modified ZX12.
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mlb
Novice Class
Posts: 48
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posted May 15, 2006 11:24 AM
Who ever told you that about the MPS kit is trying to sell you one... What you said is NOT true, the only way a motor knows to richen or lean out a mixture is if it is tied into a O2 sensor in the exhaust or if it has a decent mass air sensor in the intake track, I don't know of any bikes that have either. For the most part I agree with rac4it, the only diference in most of the kits is the easy of bolt on integration with the bike, some require a bit of wiring know how and others come with nice plug and play harnesses...
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ninja12
Needs a job
Posts: 3310
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posted May 15, 2006 11:50 AM
He is right to a point. That's how all dry kits work.
IF you wanted to spray 20hp you could probably get away with the sensor adding enough extra fuel to not hurt the motor if it was not already lean, I would not try it with 40.
I said " probably" and it might not yell the best A/F or power, but i think it is do able.
The right way to do it is with dyno tuning, but at least bump the pc up a couple bars on the
high side.
Bergie is right about them all being the same,
except the lines , plastic, Stainless, or hard.
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted May 15, 2006 03:57 PM
quote:
Who ever told you that about the MPS kit is trying to sell you one... What you said is NOT true, the only way a motor knows to richen or lean out a mixture is if it is tied into a O2 sensor in the exhaust or if it has a decent mass air sensor in the intake track, I don't know of any bikes that have either. For the most part I agree with rac4it, the only diference in most of the kits is the easy of bolt on integration with the bike, some require a bit of wiring know how and others come with nice plug and play harnesses...
not true at all...the inbox air temp sensor can compensate with additional fuel due to the extreme cold introduced by the nitrous in the airbox.
and as was mentioned before...all dry kits do this.
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megabyte
Pro
Posts: 1047
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posted May 15, 2006 07:00 PM
But Muzzy's NOS shoots straight into the stacks, wouldn't that by pass the air temp sensor?
not true at all...the inbox air temp sensor can compensate with additional fuel due to the extreme cold introduced by the nitrous in the airbox.
and as was mentioned before...all dry kits do this.
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We First make our habits and then our habits make us.
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted May 15, 2006 08:22 PM
muzzys WET kit sprays into the stacks..and since it supplys its own fuel...the temp sensor doesnt matter.
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dougmeyer
Needs a job
moderated
Posts: 2713
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posted May 15, 2006 09:35 PM
The temp sensor doesn't update fast enough to to enrich to any usable extent in a 1/4 or 1/2 mile blast. It's a myth.
Doug
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Wideout
Expert Class
Posts: 300
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posted May 16, 2006 04:38 AM
So....what would be the best solution to introduce enough fuel for a 40 dry shot that is only used on occasion?
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Wideout
Expert Class
Posts: 300
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posted May 16, 2006 05:45 AM
The only reason I ask, is because I'd installed the kit with presumption that I would not need to purchase a PC3 just yet. If I need to get one, I can.
I'd also heard of some sort of resistor that Lawson installed, that dumped more fuel...but that it dumped all the time rather than only when I spray. Haven't found any info on it yet though.
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ninja12
Needs a job
Posts: 3310
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posted May 16, 2006 07:59 AM
you can put the resistor on a relay that activates when you spray.
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted May 16, 2006 08:43 AM
I always just ran rich all the time (at spraying rpms) using the pc3.
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Wideout
Expert Class
Posts: 300
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posted May 16, 2006 09:12 AM
Thanks for the info guys.
Can you point me toward a place where I might be able to obtain this resistor (or more info about it)?
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Megabyte
Pro
Posts: 1047
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posted May 16, 2006 10:29 AM
quote:
you can put the resistor on a relay that activates when you spray.
The resistor idea sounds like a good solution. Anybody know where we can get instructions?
i.e. resistor specs, where it goes etc....
Thanks,
____________
We First make our habits and then our habits make us.
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Wideout
Expert Class
Posts: 300
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posted May 16, 2006 02:23 PM
I found some info, but not all the answers:
From 2003:
http://www.bikeland.org/board/viewthread.php?FID=1&TID=8191
This one's a good one:
http://www.bikeland.org/board/viewthread.php?FID=13&TID=8087&set_time=1058591444
http://www.bikeland.org/board/viewthread.php?FID=1&TID=7528
Another good one:
http://www.bikeland.org/board/viewthread.php?FID=1&TID=6588
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Wideout
Expert Class
Posts: 300
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posted May 16, 2006 02:46 PM
Hold off on hooking the resistor up to a switch. I spoke with someone that did that, and the bike would go limp when the circuit opened.
Perhaps he did something wrong. I don't know.
More details to follow.
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mlb
Novice Class
Posts: 48
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posted May 16, 2006 06:43 PM
Another option I looked at was to install a second solenoid on the return leg of the fuel rail and have it close to some extent anyway the same time you open the nitrous solenoid thus raising the fuel pressure at the injectors. Any comments on that idea?
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your car is slow
Needs a job
Fuck Nitrous...Got Boost?
Posts: 4089
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posted May 16, 2006 07:28 PM
kevin told me once he found a way to easily increase fuel pressure once with a simple vaccum line type dillyo....I never got a chance to have him explain it further...but I believe it was installed on johns nawz bike.
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mlb
Novice Class
Posts: 48
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posted May 16, 2006 07:37 PM
I know it can be done fairly easy especially on the 00 01 bikes, a buddy just crimped his return line off a little bit (with a fuel pressure gauge tied so he could monitor and regulate the pressure) for a little while to bump fuel pressure as a getto PC3 until he got the money together to get the actual thing and to be honest I was supprised how well it worked. While it was obviously not "properly" tuned it made a noticable improvement in performance on the top end where the bike was running lean.
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wannabe
Pro
Posts: 1931
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posted September 12, 2006 03:36 PM
bump for my info later when I get off of work
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jus1975
Expert Class
Posts: 402
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posted September 12, 2006 04:39 PM
How do you turn a dry into a wet system. How do you tap into the fuel system? Do you need another pump and drill and tap another outlet from the fuel tank or do you add a some sort of fitting to the fuel line.
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jscarb2
Expert Class
J&S RACING & PERFORMANCE
Posts: 176
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posted September 12, 2006 05:36 PM
you need to check out
http://www.zx-12r.org/Motorcycle_info/ZX12R_Performance_upgrades_intake_heads_NOS_Turbo.htm
and this one is what i am running 35x2 stages no problems, i did richen up my full throttle colum on my power commander by 10 points but lots of guys are running this setup without a power commander even. do a search on this board lots of info on this
http://www.zx-12r.org/Motorcycle_info/Motorcycle%20pictures/TeamLawson/TeamLawsonZX12RNosSystem.htm
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thekaz
Needs a job
spell chequer is bustimicated
Posts: 2909
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posted September 13, 2006 08:10 AM
 Edited By: thekaz on 13 Sep 2006 09:14
quote:
The temp sensor doesn't update fast enough to to enrich to any usable extent in a 1/4 or 1/2 mile blast. It's a myth.
Doug
I don't know about that ???
32bit ECU's are pretty fast...
When I have dynoed mine with the NOS the air/fuel mix seemed to correct itself some how ???Mind you it does still stay alittle lean than I would like so it is not correcting completely thus a good reason for a powercomander.
I am definately no expert on these ZX12's but all teh ford triton engines will update fast enough to make a pick-up truck a screamer 
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krexken
Zone Head
Posts: 732
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posted September 13, 2006 08:05 PM
Whole lots of 12s with dry systems and no problems. Not sure I'd overcomplicate things. Only problem I've witnessed from a dry kit was slight piston reconfiguring from a two stage 100hp setup. Made over 260hp for a little while though!
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