Help adj some bins for nitrous

**mynumber1hater** · 03-22-2012

Would some one like to take a crack at some LT1 bins for retarding the timing for a 150 shot? The copy and paste did not work very well, the file is at the bottom. Thanks

Extended Spark Advance Vs. RPM Vs. MAP

RPM MAP (Kpa)
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
4000 35.0 41.0 43.0 44.0 43.0 42.0 41.0 41.0 39.0 39.0 38.0 38.0 31.0 29.0 29.0 27.0
4500 35.0 41.0 44.0 44.0 43.0 42.0 41.0 40.0 40.0 40.0 39.0 38.0 31.0 29.0 29.0 27.0
5000 35.0 41.0 44.0 44.0 43.0 42.0 41.0 40.0 39.0 39.0 39.0 38.0 31.0 29.0 29.0 27.0
5500 35.0 40.0 44.0 44.0 43.0 42.0 41.0 40.0 39.0 39.0 39.0 38.0 31.0 29.0 29.0 27.0
6000 35.0 40.0 44.0 44.0 43.0 42.0 41.0 41.0 40.0 40.0 39.0 38.0 31.0 29.0 29.0 27.0
6500 35.0 40.0 44.0 44.0 43.0 42.0 41.0 41.0 41.0 41.0 39.0 38.0 31.0 30.0 30.0 30.0
7000 35.0 40.0 44.0 44.0 43.0 42.0 41.0 41.0 41.0 41.0 41.0 41.0 34.0 32.0 32.0 32.0

Main Spark Advance Vs. RPM Vs. MAP

RPM MAP (Kpa)
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
400 21.0 23.0 23.0 24.0 25.0 26.0 24.0 24.0 20.0 20.0 18.0 14.0 5.0 1.0 0.0 0.0
600 24.0 24.0 27.0 30.0 30.0 29.0 27.0 25.0 24.0 21.0 18.0 16.0 7.0 4.0 2.0 0.0
800 27.0 31.0 32.0 33.0 33.0 32.0 29.0 26.0 25.0 22.0 19.0 16.0 8.0 5.0 3.0 2.0
1000 32.0 38.0 39.0 36.0 34.0 33.0 31.0 29.0 26.0 23.0 20.0 16.0 8.0 5.0 4.0 4.0
1200 34.0 40.0 39.0 38.0 37.0 35.0 34.0 33.0 29.0 25.0 22.0 18.0 10.0 8.0 6.0 6.0
1400 35.0 40.0 41.0 40.0 38.0 36.0 35.0 34.0 32.0 28.0 25.0 22.0 14.0 11.0 8.0 8.0
1600 35.0 41.0 41.0 41.0 41.0 38.0 37.0 35.0 34.0 31.0 27.0 23.0 14.0 12.0 10.0 10.0
1800 35.0 40.0 43.0 43.0 41.0 39.0 38.0 37.0 36.0 34.0 30.0 26.0 17.0 15.0 13.0 13.0
2000 35.0 40.0 43.0 43.0 41.0 40.0 39.0 38.0 37.0 35.0 31.0 28.0 19.0 18.0 17.0 17.0
2200 35.0 40.0 43.0 43.0 42.0 40.0 40.0 39.0 38.0 37.0 33.0 31.0 22.0 22.0 21.0 21.0
2400 35.0 40.0 43.0 43.0 42.0 41.0 40.0 39.0 39.0 37.0 35.0 34.0 26.0 25.0 24.0 24.0
2800 35.0 40.0 43.0 43.0 42.0 41.0 40.0 39.0 38.0 37.0 36.0 35.0 29.0 29.0 28.0 27.0
3200 35.0 40.0 43.0 43.0 42.0 41.0 41.0 40.0 38.0 37.0 36.0 36.0 29.0 29.0 28.0 27.0
3600 35.0 40.0 43.0 44.0 43.0 42.0 41.0 41.0 39.0 38.0 37.0 37.0 31.0 29.0 29.0 27.0
4000 35.0 41.0 43.0 44.0 43.0 42.0 41.0 41.0 39.0 39.0 38.0 38.0 31.0 29.0 29.0 27.0

**EagleMark** · 03-22-2012

When you are trying to copy code don't use Quick reply, Go Advanced and use the Code button and paste code into the tags.

Everyone is going to be scared to give advice because of possibility of melting your motor for you!

So you'll have to give a lot more info like what system, is it on micro switch only at WOT, did you install larger fuel pump, how is nitrous plumbed, how are you adding extra fuel? What does manufacturer say for spark retard during boost?

What year LT1? Mask ID?

I have an 1994 LT1 and I would like to add a 100HP shot!

**RobertISaar** · 03-22-2012

you may want to completely remove your rev limiter, otherwise if you're spraying and run into it, normal fuel will be cut, and the only fuel that might be delivered is from a wet shot/direct port nitrous.

**mynumber1hater** · 03-22-2012

Compucar wet plate, ADJ FPR, walbro 255, spray comes on at micro WOT. 94 LT1 hot cam, 1.6s, no cat, M6. Fuel supply off the fuel rail service port 43psi. Pull 2 Deg for every 50hp. Plugs NGK 3177s BR6EF gap 37... Now that i just typed the plug gap i think thats tooooo much. Might be blowing the spark out... pooptickets.

**EagleMark** · 03-22-2012

Originally Posted by RobertISaar

you may want to completely remove your rev limiter, otherwise if you're spraying and run into it, normal fuel will be cut, and the only fuel that might be delivered is from a wet shot/direct port nitrous.

Good point!

Originally Posted by mynumber1hater

Compucar wet plate, ADJ FPR, walbro 255, spray comes on at micro WOT. 94 LT1 hot cam, 1.6s, no cat, M6. Fuel supply off the fuel rail service port 43psi. Pull 2 Deg for every 50hp. Plugs NGK 3177s BR6EF gap 37... Now that i just typed the plug gap i think thats tooooo much. Might be blowing the spark out... pooptickets.

I have some experiance with LT1 $EE bin, but not much nitrous. I'll look around and see if I can find a good way to pull timing.

Does Nitrous need differant plugs like boost does? Six was telling us about shorter plugs and smaller gaps I think so they don't glow.

Does the nitrous come on all at once? Any RPM?

**EagleMark** · 03-22-2012

That looks like a pretty simple system. You installed the Nitorus nozzle in intake side of throttle plate? Where did you put extra fuel nozzle? Stock LT1 injectors?

Looked up those plugs you have and they seem to be proven for nitrous but gap was .025 to.030

One thing I would suggest you do is get the WOT BLM locker program from the $EE info thread and run it on your bin file. At WOT it will lock BLM to 128, I added 20% fuel and got AFR down to 12.8 to 1, O2 readings were steady, no cross counts and they hovered at around .900. This would be a good start on your bin to insure locked WOT fueling. This was stock engine. You really need to have your tune in order before you start blasting nitrous.

Are you still running the MAF? Is it running closed loop?

Some things to think about just from looking at $EE
1. Like Robert said get rid of fuel cut off. If you miss a gear and cut fuel off and still have nitrous it would not be good.
2. EGR off
3. Air diverter off.
4. WOT locker
5. Add fuel at WOT so your tune is in order for that engine before nitrous.
6. DFCO off
7. Cat overheat off.
8. Vats off
9. Traction control off
10. Various error codes for things we just disabled off.
11. Traction control spark retard all 0s

Just some things I would do before hand. If your tune is in order are your knock sensors still working properly with that built engine? If no knock retard can you add some timing and get some knock retard? If so good! Set timing back to no knock retard. Now we know the knock sensors are still working. So we can work on knock retard attack rate when nitrous is applied.

Since there is no RPM that nitrous comes on I am still looking for a way to take out spark at WOT only. You should probably take out more then the 6 degrees they recomend at first and do a couple runs and see if knock is present, then add 1 degree at a time till back to 6 they recomend... will look more for you in morning after I get some sleep!

Oh yeah I forgot...

**droptopstng** · 03-22-2012

hey just a thought dont get stuck on a particular plug or hung up on timing a bunch but start small.... around a .038 or 42 pill ,,,,,make sure bottle pressure stays around 950 and dont run the bottle under 4 or 5 lbs or it will change the tune up.....the big thing is pulling the plugs and checking them and do this often as it is your best way to see how its burning......make a full 2 or three sec hit then key the motor off and coast to a spot you can pull a few plugs......and under MOST circumstances around 3.5 degrees per 50 hp is what people say but we have 5.30 5.0 and 4.70 1/8th mile cars spraying 2 and 3 kits ....we dont get hung up on the stuff people say we just read the plugs and make passes.....always remember with juice if its too fat the upper ring lands pop off and too lean you get these cool holes in the middle of your pistons.....with all that said i do not promise any of this to be a fact on you car but we have not hurt a motor in the 3 years i have been participating in this program....knock on wood.... however I have had more cars on the bottle than you find at a fast and furious convention lol....I am an avid fan of n2o and believe everyone should try it at least once..

**mynumber1hater** · 03-22-2012

http://www.gearhead-efi.com/Fuel-Injection/showthread.php?649-LT1Brian-from-TEXAS pics

**EagleMark** · 03-22-2012

OK you pass!

Haven't had time to follow up but should tonight.

**mynumber1hater** · 03-22-2012

Looks like i need to dump my tunercats and get tunerpro. So we can be on the same page.. Pulling the plugs tomorrow morning, and put the tune back to stock, with a smaller shot.

**EagleMark** · 03-22-2012

I've compared the 2 and TunerPro has more paremeters... as the definitions are community built the ones more popular have more work. With TC you get what they give you unless you buy the other program to change the VDF? And even then it is limiting. That is the beauty of TunerPro, no limits and can data log from same program. Plus you can save your XDF and ADX for each car you tune with notes for every paremeter you touch!

**mynumber1hater** · 03-22-2012

Is it free? IM having a hard time with that.. free things usual are not GOOD.

THIS FORUM IS SICK.... Im on another TC forum and i am getting no replies to my threads. Im just not in the right click...

Thanks For The Help GEARHEADS EFI

**gregs78cam** · 03-23-2012

Download it, try it, you'll see why so many people use it. For the price you can't beat it. WARNING: Tuning with TunerPro can be addicting.

**EagleMark** · 03-23-2012

Originally Posted by mynumber1hater

Is it free? IM having a hard time with that.. free things usual are not GOOD.

THIS FORUM IS SICK.... Im on another TC forum and i am getting no replies to my threads. Im just not in the right click...

Thanks For The Help GEARHEADS EFI

It's free, but we frown on those who do not pay the $30. asked for donation!!! So he keeps making us cool affordable stuff! I have thought about not helping people who don't pay! If they end using it of course which anyone who's into tuning will be amazed at the built in customizable options!

The other forum you are on is more a professional OBDII forum run by TunerCat... Monadax was the scanner for TC that died in the middle, or was meant to die so Data Master would have sales or something political we don't know about...