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  1. #1
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    Lightbulb Funny Gas Facts for LTx!

    Hello LTx Tech!

    I took some time to gather and format some pretty common stuff about nitrous. The idea is to help kick-off the nitrous section of LTxTech with some helpful LTx nitrous detail. Im sure others will add, and please do we can create a master sticky with all the good on nitros setups for our cars.

    NX, TNT, Zex Jet Sizes (Wet kits)
    Single Nozzle (RWHP Rated)
    50HP = 35N 10F
    75HP = 41N 22F
    100HP = 52N 28F
    150HP = 62N 33F

    Dual Nozzle (RWHP Rated)
    100HP = 35N 22F
    150HP = 42N 25F
    200HP = 51N 28F
    250HP = 55N 31F
    300HP = 63N 35F
    350HP = 67N 39F

    NOS (Wet)
    Single Nozzle (RWHP Rated)
    75HP = 41N 28F
    100HP = 51N 31F
    125HP = 55N 35F

    NOS (Dry)
    75HP = 28N
    85HP = 30N
    100HP = 32N

    Formula for Converting Dual jets into Single:
    (.71 x size of one jet) x 2 = single jet size"

    Jet Calculator:
    http://www.robietherobot.com/NitrousJetCalculator.htm

    NX Install Guides:
    http://www.nitrousexpress.com/Instructions/main.htm

    NX FAQ Link:
    http://www.nitrousexpress.com./Pages/faq.htm

    nitrous Wiring Diagrams:
    http://www.fquick.com/garages/viewgallery.php?carid=3821 (aka Chopstix fquick:-)

    LT1 Spark Plug Reference Guide
    Stock
    Reach - .708”
    Seat - Taper
    Stock Heat Range: 5
    Gap: .050
    Plug: NGK TR55 (stock number 3951); NGK TR55IX (stock number 7164); Autolite 764; Champion RS14YC6 (stock number 13); Denso IT-16 (stock number 5325)

    Nitrous (one step colder)
    Heat range: 6
    Gap: .035 - .038
    Plug: NGK TR6 (stock number 4177); NGK TR6IX (stock number 3689); Autolite 103; Denso IT-20 (stock number 5326)

    Nitrous (two steps colder)
    Heat Range: 7
    Gap: Consult
    Plug: NGK BR7EF (stock number 3346); NGK TR7IX (stock number 3690); Autolite AR94; Denso IT22 (stock number 5327)

    AFR heads
    Seat – Gasket
    Stock – MFG Recommendations
    Heat Range: 9
    Gap: Consult ignition mfg.
    Plug: NGK 5672A-9 (stock number 7405); Autolite AR3910; Champion C59YC (stock number 792); Denso IQ27 (stock number 5315); Denso IQ01-27 (stock number 5708)(diagonal platinum ground); Denso IQ02-27 (stock number 5711)(horizontal platinum ground)

    Nitrous (one step colder)
    Heat Range: 10
    Gap: Consult ignition mfg.
    Plug: NGK 5672A-10 (stock number 7942); Autolite AR50; Denso IQ31 (stock number 5323)

    Nitrous (two steps colder)
    Heat Range: 11
    Gap: Consult ignition mfg.
    Plug: Denso IQ34 (stock number 5324)

    Trick Flow & Edelbrock Heads
    Seat – Gasket
    Stock – MFG Recommendations: approx under 9:1 compression
    Heat Range: 4
    Gap: Consult ignition mfg.
    Plug: NGK FR4 (stock number 5155); NGK BKR5EIX (stock number 6341); Autolite 3926; Champion RC12YC (stock number 71); Denso IK16 (stock number 5303)

    MFG Recommendations: approx 10.5:1 compression
    Heat Range: 5
    Gap: Consult ignition mfg.
    Plug: NGK FR5 (stock number 7373); Autolite AR3924 (Racing Plug); Autolite 3924; Champion RC9YC (stock number 2075); Denso K20PR-U (stock number 3145); Denso IK20 (stock number 5304)

    MFG Recommendations: approx 11:1 compression
    Heat Range: 8
    Gap: Consult ignition mfg.
    Plug: NGK R5672A-8 (stock number 7173); Autolite AR3911; Champion C63YC (stock number 796); Denso IQ24 (stock number 5314)

    MFG Recommendations: approx 12:1 compression
    Heat Range: 9
    Gap: Consult ignition mfg.
    Plug: NGK R5672A-9 (stock number 7405); Autolite AR3910; Champion C61YC (stock number 785); Denso IQ27 (stock number 5315)

    MFG Recommendations: approx 13:1 compression
    Heat Range: 9 - 10
    Gap: Consult ignition mfg.
    Plug: NGK R5671A-9 (stock number 5238); Autolite AR3933; Champion C59CX (stock number 296); Denso IK27 (stock number 5312)

    MFG Recommendations: approx 14:1 compression
    Heat Range: 10
    Gap: Consult ignition mfg.
    Plug: NGK R5671A-10 (stock number 5820); Autolite AR3932; Champion C57CX (stock number 295); Denso IK-31 (stock number 5321)
    Last edited by Stroked96Bowtie; 09-23-2008 at 04:39 PM.

  2. #2

    Default

    looks good.....and I really like those wiring diagrams
    1994 Formula, 396cid, AFR 227's, Single plane, and 2 of the big ones.
    http://ltxtech.com/forums/image.php?type=sigpic&userid=241&dateline=12653889  02

  3. #3
    8 Second Club


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    Default

    One thing I don't understand is why so many people still feel that a projected tip plug like a TR6 is safe for nitrous. I know a lot of people are using them but they must look like a glow plug
    So far 10.576 @ 128.64 on a 1.563 short time. N/A.
    8.957 @ 151.60 on a 1.349 60' time
    THE FIRST 8 SECOND NITROUS POWERED LT1

  4. #4
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    Default

    Quote Originally Posted by jakesz28 View Post
    One thing I don't understand is why so many people still feel that a projected tip plug like a TR6 is safe for nitrous. I know a lot of people are using them but they must look like a glow plug
    There is a big support for those plugs with a power adder...I still use the stock heat range TR55's (@.035 gap) for the little shot Im running. Seems to work good so far.

    What other plugs are good for nitrous?

    7.10ET 88mph 1/8th (old setup)

  5. #5
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    Default

    Nice info, thanks man

  6. #6
    N2O Breathing Demented Tuner


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    Default

    I was looking to get some thing like that for here. They were writen by others and I had not got approval from the writers

    As long as all is in order it will stay stuck
    Ellis

    Faster Then a LS1!


  7. #7
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    Default Jets

    I went to my local speed shop and told them I wanted 125 hp jets and they gave my 47F and 67N what kind of hp would that be
    NOS plate kit
    [SIGPIC]

  8. #8

    Default

    I'm hooking up the nitrous in my 95 t/a. I have a bottle heater with a pressure switch. My question is right now I have the ground for the heater feeding into the pressure switch and then to gnd. I seen a few different ways on here now they are showing it run through the hot side instead of being a gnd. Is it okay to run it as the ground or should I switch it to the hot side. Its a dynotune nitrous pressure sensor
    96 Trans Am, A4, 95lt1&pcm. CAI, exhaust, -Air,-EGR, Tune from LT1PCMTUNING.COM
    04 Corvette Z06- My willed car! 377ci ls6, M6

  9. #9
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    Default

    iv only ever seen it on the hot side
    Kyle

    just ur everyday slow LT1. wanna try her out?

  10. #10

    Default

    Its not a big deal now since I still have all the wires out getting things connected and waiting for my Ewp and msd box to be refurbished. Figured I would ask now b4 I have it all buttoned up. This is a little different than how I have mine since I'm using the relay for the bottle opener as well I'm just using the gnd straight off the heater instead of cutting the power to the relay. But it's wired on the ground side uploadfromtaptalk1426856979223.png (this is instructions from dynotune) I think
    96 Trans Am, A4, 95lt1&pcm. CAI, exhaust, -Air,-EGR, Tune from LT1PCMTUNING.COM
    04 Corvette Z06- My willed car! 377ci ls6, M6

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