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DrRyanScarsella

Expert Class
Posts: 113

posted January 17, 2007 10:58 AM

Wet Nos Upgrade

Ok heres the deal guys I need some input. I am planning on going full system with custom map for fuel and timing for LSR in March. I have a 40 dry shot now, its ok. MY local shop offered me a wet kit complete for 400.00, NOS brand. I have heard that wetter is better, you can safely use more HP on stock pistons due to Gas being introduced simultaneously. If I go this route, I will put them into the intakes as a direct port injection.
My question to you guys is this, With a wet kit, what hp would be safe to run at Texas or Maxton with a set up with custom map and some race gas. Could I run 50, 60 for 10-15 seconds?
I Hope I am clear in what I am asking. Also, 400.00 seemed like a fair price to me, is this reasonable? Also, I asked this before in another post and havent got a response yet, What racing fuel is best for this application. I know octane is good for boosted cylinder pressures, but what would be best fuel choice. I am trying to make arrangements now so as not to wait to long for texas. I hope to link this set up together into one of those new pc hubs to retard timing and add fuel for nos blasts.
One more question I thought of. The foggers have two attatchement points, one for nos and one for fuel. In each of these go Jets for nos and fuel. Say I went 50 shot, or 4 #12 jets for nos, what fuel jets would I use? Is there a way to figure out how much fuel to add when nos is added? Maybe a formula or just some general knowledge to get me in the ballpark before mapping.
As always, Thanks in advance, I love the site, you guys are great.

TRNorBRN6001

Needs a job
Posts: 2021

posted January 17, 2007 12:06 PM

I do believe stock pistons can handle a 70 shot. Get a hold of Buddy and some of the other guys on here that run a none Muzzy Nos system. As you may have to spend a little more than you think for a set up on a ZX12. I think some people route the nozzles into the airbox/frame while I have seen some that go into the throttle boddies. You may also want to look at taking timming out and a progressive system is nice too. Shcnitz has both those for a nice price. Full throttle and window switches are always nice. Plus a 2lb or 2.5lb bottle will help that pressure last a little longer.
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TFA 200MPH CLUB MEMBER!

buddy

Expert Class
Posts: 335

posted January 17, 2007 02:24 PM

Edited By: buddy on 17 Jan 2007 14:26

My bike has forged pistons, Carillo rods and a wet kit. If your kit comes with the plastic tubes to be used for the gas and NOS from the distribution block, get rid of it and use brass tubeing. I didn't at first and everywhere the plastic made a rather sudden bend, the NOS blew a hole in it and congregated over the only intake that didn't blow. It burned that piston and cylinder up.

I don't know what stock pistons will take, but I believe Muzzys kit is about a 60-70 hp increase, so they must feel that is safe.

I use 4 #24 jets for NOS and 4 # 26 jets for gas. The info from my instructions says a conservative separation on NOS and gas jets calls for the 2 size increase. The supplemental fuel pump should put enough gas through the jet to accomodate the NOS. I don't know what the pressure of the fuel pump should be, though.

The gas I have been useing is VP 110 and I haven't had any trouble with it. I have both a progressive box and an EIFR timeing retard box and appreciate both. I set my timing for NA at +5 degrees and the EIFR to remove about 9 degrees when the NOS is armed. Thats very conservative according to my instructions, as they say remove about 4 degrees for my shot, starting from where you normally run.

I made about 4 nitrous runs at Goliad and had no troubles related to NOS. After Goliad, this March, I will get more risky with the amount of timeing removed and the NOS-gas separation and find out just how quick this silver bike is.