Wes89GT

Anyone know if the quality of nitrous itself can vary from source to source?

Reason being is after my last bottle refill I started running leaner, with no other changes.

I've checked everything and I'll can assume is this bottle just has more oxygen.

Perhaps with the shortage Ive ended up with something other than standard automotive grade.

tug686spd

iTrader: (11)

Where you located? It's getting colder in some parts and can change your tune.

Wes89GT

Texas. Its hot as hell, and has been.

brandon@nitrousoutlet

iTrader: (2)

How much leaner? I see you're running a dry kit. Have you checked to see if your nozzle has moved at all?

Wes89GT

11.5:1 ~ 12.5:1

Nozzle checks out.

brandon@nitrousoutlet

iTrader: (2)

Hmm. Something changed. How do you have it set up for enrichment?

My first move would be to re-calibrate the wide band to make sure you're not getting bunk data.

Wes89GT

Its an NOS 5115 kit. Rebuilt connections/hoses on fuel side already.

Recalibrated the wideband as well. (Innovate).

brandon@nitrousoutlet

iTrader: (2)

How is it adding the fuel? You're shooting at the MAF correct? Have you tried a different sensor? Do you have the ability to log fuel pressure?

Wes89GT

Fuel is added by increasing pressure at fuel rails.

No. After MAF near TB.

No. But AFR is perfect off nitrous.

No logging. But have an in car guage that spikes to a steady 75PSI fuel at 900PSI bottle.

brandon@nitrousoutlet

iTrader: (2)

Then, I'd guess the next step is looking at the injectors themselves. How old are they?

brandon@nitrousoutlet

iTrader: (2)

whats the fuel pressure before you put the nitrous pressure to the regulator?

Wes89GT

I bought the injectors used.

39PSI

brandon@nitrousoutlet

iTrader: (2)

Forgive my 5.0 ignorance, but the NOS nitrous regulator is supposed to put out 50psi. When you hit that to the fuel pressure regulator, does it not go up 50psi like boost referencing a regulator?

Wes89GT

It goes from 39 -> 75. When I push the button.

NOS says I should see 80psi.... But fuel psi goes up as bottle pressure does.

Wes89GT

But yeah I agree, the injectors need a look. I'm just a little hesitant on that because it hasn't shown any issue otherwise.

Thanks.

Zmg00camaross

iTrader: (11)

Swap to another bottle and see if you can recreate the issue.

Wes89GT

Ya good idea Zmg. Just need to find some willing to part with their precisious n2o.

Wes89GT

For those curious the fuel system checked out.

What I failed to mention was the 1 inch intake spacer I added (for clearance issues).

I haven't pulled it off yet but from what Ive read this can alter the nitrous hit considerably.

pantera_efi

iTrader: (1)

Hi Wes, I AGREE with YOUR observation. (GOOD WORK !)

YOU have brought to light an ITEM even the "experts" don't state.
This is what I learned from my friend/local shop Mike Thermos, Nitrous Supply, the inventor of Modern N20 for automotive use and creator of the NOS company : "The N2O (automotive grade) is being "denatured" by adding material into the gas that STOPS the "tweaker" use."

What this can do to the N2O is the unknown you state.

I purchase Medical Grade as the cost is equal to Automotive Grade.

Lance

LSX Power Tuning

iTrader: (4)

Its the same nitrous, nitrous plus (racing nitrous) just has sulfur added. In nitrous plus there is only a maximum of 100 parts per million, thats .001% sulfur dioxide maximum. I have used nitrous plus and medical nitrous and definitely can not tell the difference.

There is one huge difference. Nitrous plus (racing nitrous) is supplied in siphon bottles, medical grade is not. The nitrous plus will spray liquid out, unless held upside down. Medical type will spray out gas (useless for a car), unless it is held upside down. Medical nitrous was almost 1/3 the cost of nitrous plus last year.