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Nitrous 1994 Explorer

Discussion in 'Need for Speed!' started by Awon2zip, May 2, 2016.


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    1. Awon2zip

      Awon2zip Elite Explorer

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      About a month ago I got Nitrous on my 1994 Explorer and I've been waiting to try it out at the track. Wednesday was the first Test & Tune night at Bandimere Speedway. Currently spraying 50 HP with NGK TR6 spark plugs. After a couple runs the spark plugs looked great. Probably gonna try a 75 shot sometime soon. I gotta thank user [MENTION=91966]jd4242[/MENTION] for his help on getting the kit installed.

      Up here at 5800 feet above sea level, cars run a lot slower. With only a KKM intake and Dynomax muffer my fastest run ever was 19.30 at 70 mph.

      Here at the time slips
      20160428_115846_001.jpg
      Quite a big drop in ET and good MPH gain. This kit was definatly worth it whether it's racing or just messing around on the streets.

      Video of me at Bandimere Speedway
      https://www.youtube.com/watch?v=OF8yaVFDRQE

      This is the kit i used: http://www.amazon.com/Nitrous-Express-20421-10-Proton-System/dp/B004706C0Q?ie=UTF8&dpID=51Pf-4tbpAL&dpSrc=sims&preST=_AC_UL100_SR100%2C100_&refRID=BVXFR76Y48TZXKX4W7Z1&ref_=pd_aw_sim_sbs_263_2&ref_=redir_mobile_desktop#immersive-view_1456289394090

      The setup:
      10lb Bottle
      20160325_111346.jpg
      Fuel and Nitrous lines
      20160325_111418.jpg
      Solenoids
      20160325_111437.jpg
      Engage Switch Off/On
      20160429_171751.jpg
      Fire button
      20160429_171829.jpg
       
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    3. jd4242

      jd4242 Elite Explorer

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      Woo those times are much slower up there..really nice gains from just a 50 shot tho..do you have a wideband a/f gauge? I ask because i wonder if your running overly rich when the nitrous is on because of the lack of oxygen. .might need to go down 1 number or 2 on the fuel jet..""might""

      When are you spraying? Do you have a pressure gauge on the bottle also??

      Your R/T are getting better ,what gears and tires do you have?
       
    4. Josh P

      Josh P Shaggin Wagon Elite Explorer

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      My van needs this.
       
    5. Awon2zip

      Awon2zip Elite Explorer

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      I'm spraying once i hit 3000 rpm. Don't have a a/f gauge or a pressure gauge on the bottle. Stock gears and Goodyear Wranglers Radials tires. Tires probably hurt my ET and MPH but gotta have them for the occasional snow storms
       
    6. Dono

      Dono V8 Limited turbo and retired SC 4.0 OHV Elite Explorer

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      Awesome!
      You have done the hard work. As you fine tune those et's will come down for sure.
      Nice to see another build!
       
    7. Awon2zip

      Awon2zip Elite Explorer

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      Thanks! It would be awesome to get into the 16s
       
    8. Awon2zip

      Awon2zip Elite Explorer

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      Would a larger exhaust help my ET?
       
    9. boominXplorer

      boominXplorer Elite Ranger Elite Explorer

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      It will help on the big end but down low and 60' times might suffer.

      What are your factory gears? If your not at least 3.73 this should be your next mod to drop your ET.
       
    10. jd4242

      jd4242 Elite Explorer

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      Have you considered getting a set of cheap rims and putting smaller/sticker tires on rear just for track?if you knew what gears you had (ie 3.55- 3.73 ls or open) and tire size (28-31???) Would tell us alot more info. Alot of other little mods you can do also that would help alot

      Are 2wd also??
       
    11. Awon2zip

      Awon2zip Elite Explorer

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      P235/75R15 Wrangler Radial tires. Pretty sure i have stock gears. I'm almost at redline in third gear crossing the finish line. 4wd unfortunately
       
    12. jd4242

      jd4242 Elite Explorer

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      Stock can mean many different sizes..look on the door jam and see what rear end code it has

      Tires are 28"
       
    13. Awon2zip

      Awon2zip Elite Explorer

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    14. jd4242

      jd4242 Elite Explorer

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    15. Awon2zip

      Awon2zip Elite Explorer

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    16. Awon2zip

      Awon2zip Elite Explorer

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      What kind of mods do you recommend?
       
    17. jd4242

      jd4242 Elite Explorer

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      Id start with the free stuff,like checking your throttle cable for slack and adding zip ties if it has any.then maybe half blade throttle mod...then efan and high flow filter.even under drive crank pulley and high flow cats/exhaust. .or even ford racing carbon fiber clutches for the rear end,i assume yours are original and about done for..

      Your biggest power mods will be internal though, cam and bigger vavles.or even porting the lower manifold and headers

      Sticky tires are gonna be probably the best mod though. .some nice 28x10.50 (275/50) would let you launch at much higher rpms and or replace those rear clutches if original

      Guess it all depends on your funds and how much track time you really do..first id throw a 75 shot at it
       
    18. Awon2zip

      Awon2zip Elite Explorer

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      I'm almost outta high school so i don't have a whole lotta spending money. I've done the cable mod, I have a KKM filter and a dynomax super turbo muffler. I've always thought about getting a full exhaust kit but never knew if the power gain would be worth the money.

      About the 75 shot...i have the NGK TR6 spark plugs gapped at what you recommended. They look great after doing plenty of nitrous runs. Would i need to upgrade the spark plugs to do the 75 shot?
       
    19. jd4242

      jd4242 Elite Explorer

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      Nope.Tr6 should be fine.people over on RPS have sprayed i think up to a 125 shot but they had tuning to support that
       
    20. Awon2zip

      Awon2zip Elite Explorer

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      Sweet. 75hp is the limit i plan on ever doing. I might port the manifold and exhaust to make sure they're matched up. What's your thoughts on upgrading the exhaust pipes an extra .25 inch?
       
    21. jd4242

      jd4242 Elite Explorer

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      I dont think exhaust mods on a basically stock motor (IE no cam or head mods) is worth much as far as power.i know headers dont even gain you a hp with stock heads,valves and cam..

      Personally id spend it on efan or under drive pulley..both are proven to release hp
       
    22. Awon2zip

      Awon2zip Elite Explorer

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      Good to know. Which efan and under drive pulley do you recommend?
       
    23. jd4242

      jd4242 Elite Explorer

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      Efan would be custom. Search around on here for ideas.
      The under drive isnt cheap,its listed for a 4.0 sohc mustang. Its the same
       
    24. Awon2zip

      Awon2zip Elite Explorer

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      Thanks for your help. I'll be sure to update once i do the 75 shot
       
    25. Anime

      Anime EF YEAH!! Elite Explorer

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      Perhaps. Depends what size exhaust you have on there now.

      93-94 came stock with 2.00" exhaust, 91-92 came stock with 2.25" exhaust.

      The 2.25" flows a LOT more, and seems to be best for the 4.0L OHV performance wise. Dynomax's 17747 muffler with a 2.25" in/out is what they spec for the 91-92 Explorer and flows a lot more than a 2.00" in/out.

      If you already have a 2.25" muffler and pipe, going to 2.5" might be overkill, then again maybe not if you are going all the way to redline with the boost.

      The 2.00" is best for street for quiet/no drone, the 2.25" is best all-around for torque/sound/performance, 2.5" would probably be best for track use, if you have the air flow mods to need it.
       
    26. Awon2zip

      Awon2zip Elite Explorer

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      I only got the 2.25" dynomax muffler. Should i upgrade to the 2.25" exhaust pipe? both the mid pipe and the end exhaust pipe?
       

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