Target a/f when running a $hit ton of meth?

SwiftEVO · Apr 12, 2009, 06:27 PM

Im running 2 m14 nozzles and pulling about 45% fuel from my map. Which yields around a 12-12.3 a/f. Im running it with 93 oct on a 4088r. Car has been running great no knock what so ever at 30psi doing 7k pulls through 5th gear. IM gonna increase my boost to about 32psi for my meth/93 tune. I just need to know if a 12 a/f is safe for meth injection? What a bout race gas with meth? What should my target a/f's be?

Thanks for your help.

--Josh

staatz · Apr 12, 2009, 06:29 PM

My car is safe and doesn't touch 12s ever. I run the smc meth with m10 nozzle.

Lowness · Apr 13, 2009, 04:16 AM

hey Josh i've seen your recent Mexican racing videos. You need to stop playing around with those V8 guys and turn UP the boost with c16. It's time for you to call KevinD and get a kill mode tune with c16.

SwiftEVO · Apr 13, 2009, 07:42 AM

Quote:

Originally Posted by Lowness

hey Josh i've seen your recent Mexican racing videos. You need to stop playing around with those V8 guys and turn UP the boost with c16. It's time for you to call KevinD and get a kill mode tune with c16.

Haha hell yea! I talked to him last week and we got something setup for this week. I just need to do a log and send it to him. Ive already got the c16!!!!

lemmonhead · Apr 13, 2009, 10:21 AM

0.9 lambda is what I shoot for, still safe

scheides · Apr 14, 2009, 10:49 PM

From what I've learned, generally you shoot for afr based on your meth/water mix. There is a great thread on this in here if you search for it.

100% meth: 11.0:1
75%meth/25%water: 11.4:1
50/50: 11.7:1

The best thing to do is put it on the dyno. Run it at 11.0, and then lean it out and see if it makes more power. You may be able to run more timing at 11.0 vs 12.0 also, see which works better for ya.

Evo8Emperor · Apr 18, 2009, 01:44 PM

Hmm Im wondering what I should aim for. Im still wondering what jets and how many to use and what my afr should be with a 50/50 mix. I have no idea still on WAI but it seems like 50/50 would make the most sense to get the best of both worlds.

I right now run 12.0 on spool and 11.5 right to red line just about sometimes it will drop to 11.3-.4. With that said running a 50/50 mix Ill only be able to lean it out about .2 according to the above but I should be able to increase timing alot and up the boost right ?