NOS how much race fuel?
+ Reply to Thread
Page 1 of 3 1 2 3 LastLast
Results 1 to 14 of 30

Thread:
NOS how much race fuel?

  1. #1
    Senior Member sturat's Avatar
    Join Date
    Dec 2008
    Location
    Houston TX
    Posts
    797

    Default NOS how much race fuel?

    Putting a 200 shot on my mill. It is 10.5:1 alum heads 514 ford. I run it on 93 now. I am trying to confirm how much and what octane I need to mix to run the nos. I was thinking 111 with a 3:1 ratio?
    Last edited by sturat; 09-03-2010 at 06:02 AM.
    Legalize the Constitution!

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Distinguished Member David 519's Avatar
    Join Date
    Jan 2008
    Location
    NorCal
    Posts
    5,754

    Default

    I'd guess if it doesn't detonate on the motor, and you pull the right amount of timing out of it on the bottle, you should be fine with 93. There's a few guys around here like CS19 and the rest of the red cuppers know their stuff on NOS, so maybe they'll chime in.
    If you don't get the info around here, Yellow Bullet has some really good tech forums. The nitrous forum is moderated by Steve Johnson, a really sharp dude with NOS. Lots of good info on the YB and very little of the "mine's bigger than yours" BS so prominant around here. Good luck....
    Quote Originally Posted by gn7 View Post
    ....... David 519 is 100% correct........

    Quote Originally Posted by fuelinmyveins82 View Post
    .....I think people forget that racing is supposed to fun. Losing shouldn't be discouraging it should motivate you work on your pile to make it faster.....

  4. #3
    Senior Member hotbo's Avatar
    Join Date
    Feb 2008
    Location
    lake Ouachita AR
    Posts
    4,677

    Default

    Quote Originally Posted by sturat View Post
    Putting a 200 shot on my mill. It is 10.5:1 alum heads 514 ford. I run it on 93 now. I am trying to confirm how much and what octane I need to mix to run the nos. I was thinking 111 with a 3:1 ratio?


    you will be plenty safe with your 3-1 ratio.

    heck 1-1 would fine imo.

    what is your tune on your motor wihtout?these are things i would worry more about.

    how do the plugs look on motor?

    what is your total timing?

    i have gotten away with no timing retard on 200 shoot before

    its all in the tune of what you have then adding the juice you have to be on tune.

    imo if your motor is running strong the way it is and you add the 200 and mix some good fuel.that's all you need.


    example we just put nos on my dads 505 10.2 motor with aluminum heads,ect.

    150 shot.

    fuel pressure 5.5psi wot,36 degress timing.

    took away no timing and ran 93 octane.

    plugs look perfect for me imo and no blow ups yet,lol!!!!!!!!!!!ran 2 bottles thru it so far without a hiccup and the plugs look the same everytime.


    its all in the tune.

    i started out with 7 psi in the fuel and plugs were fat looking on the juice,5.5 seems to be the sweet spot(or as low as im going to go).


    best of luck your gonna fall in love
    WFLC


    2011 Performer SS
    built by Scott Seastrom.

  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Senior Member sturat's Avatar
    Join Date
    Dec 2008
    Location
    Houston TX
    Posts
    797

    Default

    My motor runs great and strong right now. plugs look good no hicups of any sort..

    My timing is 36 total ...

    Sounds likes 3 gallons 93 to 1 gallon 111 should work for the 200..

    This is my first time with NOS and I have heard once you go nos you never go back.....

    Maybe i can put the hurt on SS and his purple carpeted winger..
    Legalize the Constitution!

  7. #5
    Senior Member
    Join Date
    Jan 2009
    Posts
    435

    Default

    I would start with the race gas and and less timing and work backwords until i got my tune up and fuel system bugs worked out. I run a msd timing retard with a 350 hp dual carb big shot kit on mine and worked up with the pills from the 125hp and work my way up. mine will only trigger the system at wot and i run a separate fuel system with 116 octane with it's own pump, maybe overkill and too safe but how much race gas can a $1000.00 set of pistons buy. best to creep up on a new deal for me.

  8. #6
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,729

    Default

    on a 514bbf id be runnin bout 28* locked on maybe say 4parts 93, 1 part 110. you're getting alil greedy with the timing, cant do that on the bottle or you'll be blowing a headgasket been there done that

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

  9. #7
    Senior Member stix818's Avatar
    Join Date
    May 2008
    Location
    Mohave Valley/Quartzsite
    Posts
    4,188

    Default

    Do as David mentioned and swing over to Yellow Bullet.. Steve Johnson and a couple others helped me out tremendously!! And mines only 125 shot.. Here's a link to some pretty good info.. Monte Smith I believe just went and rewrote these PDF files and updated them..

    Click on the link and then click on the kit you have.. They have a link to pdf with instructions.. If you scan through the pdf they have tables that you can use as a baseline..
    http://www.holley.com/division/NOS.asp#14

    From what I see 200 shot says 110+ octane with a total timing with system engaged around 24*..
    http://www.performanceboats.com//signaturepics/sigpic3592_1.gif
    Special Thanks to:
    Nelson Speed & Marine
    D21 ENT
    J.J. @ Beaver Fab
    Performance Boat Candy

  10. #8
    Senior Member CHEVY JET's Avatar
    Join Date
    Mar 2008
    Location
    St. Charles, IL
    Posts
    976

    Default

    I dont want to be a thread jacker, but what is better, to run a big magnafuel pump, or a sepret fuel system with 110 octane????? 100-300 horse shot.

  11. #9
    Frank my lord Blown$um's Avatar
    Join Date
    Jul 2009
    Location
    ca
    Posts
    186

    Default nos

    ive ran a lot of nos and in my opinion 28 - 30 degrees total timing you dont have to be locked out just stiffer advance springs , i would stick to a 175 shot . the only reason is it lifts the heads and instant blown head gaskets, are you head studs or bolts ? i was doing testing on a freinds motor for him and he wanted to push it till something broke , mr big shot 250 2 plate system on tunnel ram 36 degrees timing on sonoco 116 , we was playing with the advance springs and trying to get timing all in by 25 to 2800 rpms and on the 3 pass it had a intake explosion [ way to much timing to soon ha ha ] , all i remember was all these little rubber vaccum line plugs shooting past me . i looked back and the scoop was barely hanging by the butterfly linkage. meanwhile my freind yelling for me to turn it off and i told him hell with you not till my feet are on land , damage already done. once parked looked at damage and found all 8 butterfly's bent like taco's down throat of carbs. we were 2 miles south from boat ramp on the kings river so i took screw driver and hammer bent plates back as best i could plugged vaccum lines and couldnt beleive it actually ran and took us back to dock . funniest shi$ i ever seen. oh ya play it safe 50 - 50 pump gas and 110 race fuel should get you close to about 100 octane.
    Last edited by Blown$um; 09-09-2010 at 01:08 AM.
    "Ill be your huckleberry"

  12. #10
    460
    460 is offline
    ATTA BOY 460's Avatar
    Join Date
    May 2008
    Posts
    2,348

    Default

    Im running 28* none locked out on my ford. 125 shot on 89 and havent had on issue yet. 466 10 to 1 comp ratio

  13. #11
    B1 Racing cs19's Avatar
    Join Date
    Dec 2007
    Posts
    6,523

    Default

    Dont believe everything you read on the internet if you want to keep your engine alive.

    Id look into a fuel enrichment seperate fuel system and a retard box. Just my .02

  14. #12
    Platinum Member BigSteve's Avatar
    Join Date
    Feb 2008
    Location
    Close to the water...
    Posts
    2,014

    Default

    Quote Originally Posted by cs19 View Post
    Dont believe everything you read on the internet if you want to keep your engine alive.

    Id look into a fuel enrichment seperate fuel system and a retard box. Just my .02
    Listen to Him he knows !!! going to run a pit crew for a pro mod this weekend. 755 inches and 4-300 shots 2600hp. Each shift brings another shot in and additional spark retard. The manifold was flowed and calibrated by NOS and MSD set up the ignition requirement. What you really need to do when running Nos is have a great fuel system, tank, line size, pump, reg.
    If you ain't the lead dog the view is always the same !

  15. #13
    B1 Racing cs19's Avatar
    Join Date
    Dec 2007
    Posts
    6,523

    Default

    Quote Originally Posted by BigSteve View Post
    Listen to Him he knows !!! going to run a pit crew for a pro mod this weekend. 755 inches and 4-300 shots 2600hp. Each shift brings another shot in and additional spark retard. The manifold was flowed and calibrated by NOS and MSD set up the ignition requirement. What you really need to do when running Nos is have a great fuel system, tank, line size, pump, reg.
    Any pics of the motor?

    That sounds like alot of fun, best of luck to you guys.

  16. #14
    Resident Ford Nut Sleeper CP's Avatar
    Join Date
    Dec 2007
    Location
    San Diego County
    Posts
    10,072

    Default

    Quote Originally Posted by sturat View Post
    Putting a 200 shot on my mill. It is 10.5:1 alum heads 514 ford. I run it on 93 now. I am trying to confirm how much and what octane I need to mix to run the nos. I was thinking 111 with a 3:1 ratio?
    The added octane isn't going to hurt you, but to be honest if it runs well on the 93 I'd get a timing retard box and pull 6* of timing out of it at first and then take it down to 4* out.

    The next thing would be to do as Chris suggested and get a small seperate enrichment fuel tank for the Nos fuel. Wayne ( 76 Miller ) had a nice tank from Jaz bolted to the back of his engine and I have an alumi tank in the bildge behind the engine.

    What Nos system do you plan on using ? from what company?

    S CP

    "Dark Sarcasm"
    Going fast is only half the fun ... what you make go
    fast is the other half.
    " A Government big enough to give you everything you want is big enough to take away everything you have"

+ Reply to Thread
Page 1 of 3 1 2 3 LastLast

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in

Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95