User Omega

What do you recommend or what are you using?

Anyone using VP NO2, Ignite 114, MS109, C16?

What are cons or pros of each?

lt1z

C16 or E85 usually

User Omega

I'm wondering about that VP NO2 mostly. It's over 120 octane.

Wouldn't you think a higher octane would be better? I think its around $85 for 5 gallons.

I know several guys running the oxygenated MS109. C16 is leaded. I'm curious if that could have an ill effect on O2 sensors.

chpmnsws6

It won't have major effects on the o2 sensors as a secondary fuel.

Turbo2L

Agreed. I run C16 in the standalone and 93 in the tank. Q16 might make a bit more power.

User Omega

Is there a happy medium with these fuels and nitrous or is the higher octane just more protection from detonation with no real power gains?

Turbo2L

With a competent tuner you can run more timing resulting in more power for a given size shot with the higher octane fuels.

Greedy_z06

Is a stand alone nesserary with a 150 shot?

Turbo2L

It really depends on what kind of power you are making. I had to move to a standalone for anything over a 125 shot. I was making about 550rwhp during that time. I moved to a standalone and have ran a 250 shot without issue.

User Omega

It's not so much how much power you are making to begin with, its all about ignition timing. You get to a point where regular gasoline or E85 on a certain shot size (different for every build) requires so much timing pulled from the tune that engine doesn't make anymore power with additional nitrous.

Having a standalone tank/pump to spray a race fuel will allow you to add more timing and make more power without detonation. That is the reason I started this thread. To see if people have tried these fuels and found that one worked better than the other.

Turbo2L

The question I answered was based on the fuel demands of the motor and capacity of the stock fuel pump. In this case it does matter how much power the car is making on motor when you are pulling the fuel from the rail for the nitrous system fuel solenoid. The factory fuel pump can only do so much. This was one of the driving factors for me switching to the standalone. If you're making 500hp you can probably pull off a 150 shot on the stock pump. If you're making 600hp then you're going to need more pump hence the standalone.

User Omega

I get what you are saying now. I was thinking the pump was a given. I didn't really consider someone buying a standalone system instead of just upgrading the pump.

lt1z

You don't want to pull from the rail when you have a healthy N/A motor. You will introduce a lean spike the pumps will have to overcome when the fuel solenoid opens. Its is ok for a 370whp LS2 with a 125 shot not so much on a 570whp 416 on a 150 shot. The standalone is worth it for fine tuning the nitrous independent of the N/A tune as well.

0NitrousOutlet

Using a dedicated standalone fuel system will help you prolong the motor allowing you to use a higher fuel grade such as C16/Q16. For most applications c16 will cover your fueling needs up to 1600whp depending on application of course. After that you would look into using a NOS max fuel with higher octane. C16/Q16 are fuels you could go with to feed the fuel solenoid of the system to keep detonation to a minimum, increase ignition timing thus allowing you to make more power. Some people will use E85 but you should always test the Ethanol content of the fuel before using it. Most places that have E85 have winter and summer blends resulting in amount of ethanol not meeting advertised content. For instance the winter blend in Texas usually tests out between 70-75% ethanol. Of course that is not 85%. If you have any questions feel free to call me or PM me 254-848-4300 EXT 109 -Houston