With the various race fuels available on the market, what fuel would you use in a dedicated fuel cell spraying 150-200 and why?

Assume the following:

Forged 347
11:1 Compression
.037 Quench
7000 RPM max
LNC 2000
BR7EF Plugs
Nitrous Outlet 92mm plate kit
Nitrous Outlet window switch
Nitrous Outlet Fuel Cell

 

All you need is C16 in an application like that.

 

Yep, I have been running c16 on nitrous outlets dedicated cell. 250 shot through their 102 plate on my sbe ls6. Working like a charm

 

How many degrees did you pull on the 250 shot while running C16?

I plan to work my way up to 200 reading plugs and adjusting accordingly.

 

I can't remember off the top of my head. I will check when I get home around the car

 

Cherryss, I'm pulling 11 degrees through my lnc2000 from a total of 26

 

Thank you for your response JTM! This serves as a helpful point of reference to me. I had figured it would have been around 10° or less but if that is what the car wants then that all that matters. My plan would be to pull 4° on the 100 hit (jetted per Nitrous Outlet's suggestion) as a starting point and read plugs from there.

Brandon,

Would you suggest pulling more than the 4° on my initial 100 shot? This is to establish a baseline to tune and read plugs from.

Thanks,

Randy

 

There's nothing wrong with doing it that way. But, you want to sort out the air/fuel ratio first. Just remember, as you're putting timing to it, it can start to burn off more fuel. So, if you put the fuel on the ragged edge and then start adding timing, you can end up leaner than expected.

 

The more I think about it the more I want to run a dedicated fuel cell on my nitrous setup. I'm going to open up the stock ring gap and would like to run C16 or something similar. I think with those two things and running a progressive controller that will help the SBE live.

Brandon,

I have a quick question about timing and a progressive shot. Do you guys pull even more timing out at peak TQ, then slowly put some back in like on a forced induction setup?

I know the instant TQ from nitrous is crazy, I didn't know if pulling more at the beginning helped or not.

Thanks. OP I didn't mean to highjack your thread.

 

Are you wanting to open your ring gap to run a larger shot or just as piece of mind? Would the addition of C16 raise or lower temps in the combustion chamber?

 

From everything I've seen and have read the ring gaps are pretty tight on these engines unless it has a ton of miles on it. The bigger the shot, more the temp goes up, the more the rings expand until they butt against each other, then lift, then blows to top of the piston off. Opening the gaps up allows for more expansion without catastrophic results.

I can't speak on if C16 changes the temp of the combustion chamber or not. What I do know is it's more resistant to detonation which obviously will kill the engine as fast as the rings butting against each other.

 

It really depends on the application. But, I don't normally do that. I could see it being needed though, on a pump gas or SBE deal, that you're just trying to make live.

 

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You're very welcome. I had started at pulling 12 degrees. The car picked up almost a full mph by adding one degree. I'm scared to add anymore as the car is running so good and has stayed together and been trouble free

 

I see you have 4.30 gears and a PowerGlide, implication is that you operate in 1/4 mile increments.
Why not tune for straight methanol? Relatively inexpensive, WIDE tuning window, and consistent.

 

Dude- Five years??