rACeRs
Expert Class
Posts: 413
|
posted December 29, 2008 10:56 AM
30 dry shot and 91 octane?
Ive pulled the trigger on getting a dry nitrous shifter combo. I was tired of all the mis-shifts at the track and figured if im putting an air shifter on it I might as well do the nitrous too. So my question is can I get away with adding fuel on the pc3 and still run 91 octane (its the highest pump gas I can get around here). If my memory is right smokin was adding 12 percent to the high side and running a 30 shot with 93 pump (was this with the track map?)
Ive also heard of people saying that they needed 22 percent to run a 40 shot on pump.
I have also seen people run the track map with mrx01 and a 30 to 40 dry without adding any additional fuel. But I cant find that stuff anywhere around here. And at $100 per 5 gallons, that would make for a very expensive track day. But then again it will cost much more if the motor goes boom 
And whats the easiest way to drain the fuel tank?
thanks
____________
tiwinder, lowered and strapped, pc5 w/ brocks pump map, 40t rear
9.1 @ 149 w/ 1.57 60' SWB
  
|
1badvespa1400cc
Zone Head
power junkie
Posts: 691
|
posted December 29, 2008 11:04 AM
You need to talk to smokin on that one.
____________
Just another foeteen!!!!!
|
smokinZX14
Needs a life
Posts: 10197
|
posted December 29, 2008 11:12 AM
What you said about my set up is true .. I use 93 pump with a 30 shot ... Jesse used a 50 shot with Muzzys set up on 93 pump ... Both of us just added 12% to the top of the P/C face plate buttons on the p/c ... We had zero problems running that set up ..
I don't know if i would try 91 with that set up ... Can you find some100, 110 or 112 ? if so mix it 25% 110 and 75% 91 and you should be fine..
To drain the tank i pull it off and pull the fuel pump out and drain ..After you do it a few times it's easy and doesn't take long..
____________
Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
|
kawasakijockey
Pro
Posts: 1876
|
posted December 29, 2008 11:12 AM
 Edited By: kawasakijockey on 29 Dec 2008 19:15
I run a 30 shot on 91-93 with 15% added on a track map. The Schnitz chart shows 10% is required for a 30 horse jet. I would not trust that unless you have low nitrous pressure. 12-15% is a good-to-go. Should say that no less than 15% on 91. As Smokin states, 93 is what you should run.
____________
Get on the shortbus boys 'cause its time to get schooled.
2007 ZX-14
1.38 60ft
9.03 @ 149mph
8.95 @153 small shot n2o
8.68 @160mph 5lbs boost
|
Shane661
Needs a life
Posts: 11494
|
posted December 29, 2008 11:18 AM
How about pulling a little timing to compensate for the lower octane?
|
pazx14rider
Zone Head
Posts: 953
|
posted December 29, 2008 02:12 PM
Or maybe find some octane booster at your local parts store Racer
|
Bently
Needs a life
2012 14r In Blue and no Mods!
Posts: 5428
|
posted December 29, 2008 03:27 PM
I would stay away from the octane booster, it's hard on these new style plugs.
|
KZScott
Needs a life
high on speed
Posts: 7235
|
posted December 29, 2008 08:14 PM
quote:
How about pulling a little timing to compensate for the lower octane?
bingo. colder plugs too
I ran 90 hp on 91 octane pump gas with 7.5 degrees pulled, tuned about 11.5:1 AFR on 12.5:1 CR on my 12. very conservative setup. just dont hit the rev limiter.....unless you like taking things apart
____________
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
|
zx trouble
Novice Class
Posts: 56
|
posted December 30, 2008 03:01 PM
i am running brocks track map 89 octane pump gas n 30 dry shot the bike is running rich so i didnt add any extra fuel seems to be running ok at this time
|
gilberjj
Needs a job
Friend of Fast
Posts: 3196
|
posted December 30, 2008 04:50 PM
quote:
i am running brocks track map 89 octane pump gas n 30 dry shot the bike is running rich so i didnt add any extra fuel seems to be running ok at this time
sounds like the recipe for melted pistons. I'm guessing Brock has that map tuned at 13.5 to 1 air to fuel ratio. For boost and nitrous, you want that closer to 11.5-12.5:1 depending on boost and nitrous levels. You should really fatten that map up.
|
JohnnyRocketZX14
Expert Class
Posts: 207
|
posted December 30, 2008 06:16 PM
quote:
quote:
i am running brocks track map 89 octane pump gas n 30 dry shot the bike is running rich so i didnt add any extra fuel seems to be running ok at this time
sounds like the recipe for melted pistons. I'm guessing Brock has that map tuned at 13.5 to 1 air to fuel ratio. For boost and nitrous, you want that closer to 11.5-12.5:1 depending on boost and nitrous levels. You should really fatten that map up.
+1
my Brocks track map showed 14:1 on MR9 i added 6% just to the motor map and another 20% for the 40 shot map which = 12.7:1 with MRX01
____________
07 ZX14
Brocks Sidewinder, Stretched, lowered, strapped,Drag seat, PCIII W/Hub, No flies, BMC, Speedo Healer, Muzzy NOS/Shifter,
1.41 60, 5.77 1/8th 8.89 1/4
|
4Racing
Parking Attendant
VP Race Fuel Expert
Posts: 19
|
posted December 30, 2008 10:42 PM
You can not run nitrous without extra fuel and not damage your motor. You can run on motor with a nitrous map and suck someone into a bet and flip the NOS switch and win.
If you use a spray bar add even more fuel as it is much more efficient than a fogger nozzle like I use. You will make more HP and possibly damage your motor with the same size jet. Buy a LM1 or newer O2 sensor with data logger, a window switch to control the nitrous and to protect your motor from the rev limiter, a pressure pro regulator to keep your pressure to the solenoid at 900 psi max, and start off with extra fuel and tune until you get to 12.5:1. You will save a lot of money in the long run. You can run more nitrous with race fuel than pump gas and do not have to back out timing up to a size 40 jet on the ZX14. I use MRX01 and still have stock valve springs and have gone 5.77 @ 129 in the 1/8th - had to get out of it as to not break 9.0 for the class I was racing and 8.93 @ 157 in the 1/4 weighing 220 lbs in gear. I am looking to break 200 at the Texas Mile and run 8.60's in 2009 with a totaly stock motor and a 40 jet on a true legal street bike you can ride to work.
|
|
|
HOME
NEW TOPIC