Martin718

iTrader: (14)

2011 2SS LS3 Synergy Green Camaro
Mods:
Whipple 2.9L 3.875 Pulley
Custom Cam By Geoff Skinner@EPS
Kooks Full Exhaust
GMM Ripshift Shifter
Cold Air Inductions Intake
Pfadt Racing Stage Three Suspension
Mcloed RXT twin disc clutch with billett flywheel

Dyno Numbers Pre Blower
463RWHP/423FTLBTQ
Dyno Numbers After Blower
655RWHP/578FTLBTQ
Tuned By Tracy@Cincy Speed
A/F 11.4

http://www.youtube.com/watch?v=2fmFE...e_gdata_player


Alky Control 100% methanol
711rwhp/607ftlb
21degrees timing
A/F 11.04


injectionhttp://www.youtube.com/watch?v=wQ0re6E_KRk&feature=youtube_gdata_player

locrzn

iTrader: (9)

Nasty for sure, that whipple definetly has the grunt. Nice job.

Martin718

iTrader: (14)

Thanks! Just wish I could get it to hook!!!

1MaddCamaro

Sick car! Have you gotten it out to the track yet?

95civic2005

iTrader: (8)

I know he has but I am unsure of what he runs. I raced him at "Thursday Night Lightz" at the track last week. Not sure what he ran as they don't show times and rip the time slip in half.

DietCoke

iTrader: (18)

Car's still WAY rich at 11:1

Martin718

iTrader: (14)

Yes as stated by the other member i have but on the 20" wheels even the drag radials can't help it, with 2.1 60' ands spinning shifting into 4th the car goes 12.1x

Martin718

iTrader: (14)

We know, it's not way rich just conservative, I'm honestly little gun shy I don't want to push the rings too far. Why don't you ship me your wheels and tires so I can see what the car will do!!!

DietCoke

iTrader: (18)

11:1 is way rich. A proper tune isn't going to 'push' anything and being super rich isn't going to make the engine live longer. Tune it properly and pulley up to make the same power, and you win. To each his own, at least it makes a good number

Martin718

iTrader: (14)

10lbs on boost, figure it's making 800plus at the crank. What afr you think is safe with 100% meth injection after maf?

Ryne @ CMS

iTrader: (10)

hmmm.... its on methanol injection, on top of this the is a 10.9:1 compression motor, methanol and its current AF has a cooling affect which in turn increases safety, but i guess you are a tuner, and know more.....

Ryne @ CMS

iTrader: (10)

your AF is perfect for meth injection.... this other guy is a tool in my opinion, and doesnt know what he is talking about....

Martin718

iTrader: (14)

Lol I was thinking we were pretty good....
But I'm no tuner....I do pay a guy to do it lol

jeffreycastgsx

Rich is better than being lean, so it dont matter if its "way" lean, which its not.

DietCoke

iTrader: (18)

Clearly I'm the tool, yet a sponsored shop's lackey cant even get the LS3's compression ratio correct (10.7:1 Bob)

Seeing as the wideband is going to read lambda, and not individual AFR between the two fuels, unless you're tuning by EGT it's all a big damned guess anyway, and the actual reading will change depending on the ratio of water/meth, pure meth, and total amount of meth that is being sprayed relative to what is being supported by your fuel system. That said, if he's only spraying enough meth to drop the AFR from 11.4 to 11.04, the car's still running rich. Call it "safe" if you'd like, but it's running excessively rich regardless.

Martin718

iTrader: (14)

The meth is 100% as stated no mixture, it is being used a a fuel replacement i.e. We pull fuel and replace with meth there for the a/f is different than it would be if it were straight gas. The alky is a standalone and has nothing to do with the cars fuel system. Run one m15 nozzle. How would it not read the a/f between the two fuels? It pics up the reading after the point of burn from the two

Martin718

iTrader: (14)

Coming from both the tuner and the maker of alky controls our a/f is spot on for setup...

DietCoke

iTrader: (18)

Let me try to simplify it. The air/fuel sensor in the dyno reads lambda, or just a basic coefficient of any given number (in most cases, 14.7:1 for gasoline). It will read parts fuel per part air, period. It doesn't care if those parts are gasoline, methanol, alcohol, brake parts cleaner, or kool-aid, because it's basically just an air particle reader/counter.

Now that being said, if you compare the stoich AFR of the two different fuels, you can obviously see that you need a lot more methanol to burn then you would fuel.
14.7:1 gasoline
~6.3:1 methanol

If you were comparing a partial meth burn to a gasoline-only burn, the two resulting AFR ratios wouldn't mean much of anything compared to each other, because at the same 'reported' AFR, the methanol burn is actually much leaner because the fuel has a much lower stoich coefficient. Again, this is a result of lambda value being set for gasoline stoich for both runs (this is just a read-out and not wholly important)

If you're pulling fuel and adding meth to replace it, 11:1 based on a 14.7:1 readout sounds pretty close, as it is much leaner in reality then 11:1 on gasoline due to the stoich coefficient of methanol, which would make more sense. You didn't specify and I assumed you were just adding meth and timing, instead of reworking the entire tune.

Punisher_ws7

iTrader: (6)

I've learned a lot from this thread

Martin718

iTrader: (14)

It was specified clearly in the very first post were it says 100%meth injection. Obviously you haven't dealt with the alky controls setup or you would have been a little more informend. It doesn't matter to me just think maybe you shoulda asked more about the setup if it was a question instead of *** U MEing