Another meth tune quesiton.. everyone respond asap please.. thanks :-)

RJCornine · 2008-07-15 23:46:47

ok so now i have been doing more research on tuning for meth/water mixture. and this is what i have come out with..

on all the tune sites it is said to tune for 12.5/1 without the meth on then run the meth but when i talk to people on here they say they just tune for 12.5 with meth running.. those are 2 totally different a/f ratios and im just trying to find out which is right.. i cant aford to buy yet another engine so i want to make sure its right.. right now i just tuned for 11.3 or so with the meth injection running to be safe.. any and all comments accepted..

cute02spec · 2008-07-15 23:48:37

12.5:1 is too lean for NO meth, but with it, that is a good AFR

RJCornine · 2008-07-15 23:50:50

edit: so your saying you tune to 12.5 with the meth activated?? not before activated?

http://forums.corral.net/forums/showthread.php?t=854621

its a long read but seems that they are saying to tune for 12.5 w/o meth andthen add meth and advance timing..

so my 11.3 is super rich?? im already -22 out up top.. to get to 12.5 i'd be -30 or more out

Last edited by RJCornine (2008-07-15 23:51:40)

kc03spec-v · 2008-07-15 23:51:17

RJCornine wrote:
ok so now i have been doing more research on tuning for meth/water mixture. and this is what i have come out with..

on all the tune sites it is said to tune for 12.5/1 without the meth on then run the meth but when i talk to people on here they say they just tune for 12.5 with meth running.. those are 2 totally different a/f ratios and im just trying to find out which is right.. i cant aford to buy yet another engine so i want to make sure its right.. right now i just tuned for 11.3 or so with the meth injection running to be safe.. any and all comments accepted..

Say you run boost juice for your methonal mixture, its a 60/40mix 60% is methonal, which, raise's the octane of the fuel. The other 40% is "water" which, Dispease's heat, so your intake air temps are cooler.
now running something like that, I would see how 13.0 works, with fatting it up to 12.5 at redline ON THE METH.
off the meth ,11.7 then with 11.3 at redline.

kc03spec-v · 2008-07-15 23:52:13

RJCornine wrote:
edit: so your saying you tune to 12.5 with the meth activated?? not before activated?

http://forums.corral.net/forums/showthread.php?t=854621

its a long read but seems that they are saying to tune for 12.5 w/o meth andthen add meth and advance timing..

so my 11.3 is super rich?? im already -22 out up top.. to get to 12.5 i'd be -30 or more out

that is the good thing about meth, its sorta like running race gas. you can up the boost, toss more timing at the car and lean it out a bit

RJCornine · 2008-07-15 23:53:11

yea i got the whole a/f ratio thing down and i understand without and with.. im just asking if you tune with the meth running or you tune without it and then run it.. do you get what im saying?

mjeffries · 2008-07-15 23:55:04

You'll read something different in every article or on every forum. Right now I'm aiming for 12.0 a/f ratio WITH the meth/water mix, seems to be a happy medium as some places state 11.5 is best and others say 12.5 is best.

RJCornine · 2008-07-15 23:57:03

yea thats what i was thinking about doing.. what are you pulling out up top if you dont mind me asking.. im at 22 right now and im scared at pulling too much since the first motor went out due to running too lean.. i knwo your tune is totally diff than mine just want something to compare to.

kc03spec-v · 2008-07-15 23:57:47

if you tune with out it, then just turn it on, you will be going VERY rich.

you need to tune for it.

Now, how you have it activate, is up to you.

mjeffries · 2008-07-15 23:58:27

Not trying to thread jack but I believe this will also go right along with your question.... when does everyone's meth start injecting? I've got mine set to come on ASAP, ~2-3psi.

kc03spec-v · 2008-07-15 23:58:56

mjeffries wrote:
Not trying to thread jack but I believe this will also go right along with your question.... when does everyone's meth start injecting? I've got mine set to come on ASAP, ~2-3psi.

AEM has a new kit, that comes on with MAF voltage, which i think is kinda cool.

mjeffries · 2008-07-15 23:59:48

RJCornine wrote:
yea thats what i was thinking about doing.. what are you pulling out up top if you dont mind me asking.. im at 22 right now and im scared at pulling too much since the first motor went out due to running too lean.. i knwo your tune is totally diff than mine just want something to compare to.

I'm pulling -26 @ 6000 RPM right now, but that is on top of the Turbonetics reflash.

RJCornine · 2008-07-16 00:00:35

i dont have mine rolling on til 7.5psi i run 10 max so at redline i am -22 right now and pushing like 11.3-11.5 a/f ratios

^edit: i thouhgt it was said its best to have it come on last min??

Last edited by RJCornine (2008-07-16 00:02:02)

jds21088 · 2008-07-16 00:40:56

i think that a good afr to tune your meth to is 11.8-12.2...P.S. my meth comes on at 4 psi

cute02spec · 2008-07-16 00:42:30

my alky turns on at 3-4psi, too.

RJCornine · 2008-07-16 00:45:57

hmm.. might have to do a total retune and kick the meth on earlier.. just worries me to run 12 a/f ratios.. dont wanna blow my stuff up... again.. (wasnt my fault the first time)

specd_out · 2008-07-16 10:31:28

I run 11.5 11.7 at redline with the meth coming on around 3-4 psi. dont forget the nozzle that you use makes a big difference as well.

Board footer

2008-07-15 23:46:47 (25 weeks 19 hours 13 minutes 48 seconds) #1808912 | | view posts since this #1

Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-15 23:48:37 (25 weeks 19 hours 11 minutes 58 seconds) #1808914 | | view posts since this #2

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-15 23:50:50 (25 weeks 19 hours 9 minutes 45 seconds) #1808915 | | view posts since this #3

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-15 23:51:17 (25 weeks 19 hours 9 minutes 18 seconds) #1808916 | | view posts since this #4

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

RJCornine wrote:

2008-07-15 23:52:13 (25 weeks 19 hours 8 minutes 22 seconds) #1808917 | | view posts since this #5

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

RJCornine wrote:

2008-07-15 23:53:11 (25 weeks 19 hours 7 minutes 24 seconds) #1808919 | | view posts since this #6

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-15 23:55:04 (25 weeks 19 hours 5 minutes 31 seconds) #1808921 | | view posts since this #7

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-15 23:57:03 (25 weeks 19 hours 3 minutes 32 seconds) #1808924 | | view posts since this #8

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-15 23:57:47 (25 weeks 19 hours 2 minutes 48 seconds) #1808925 | | view posts since this #9

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-15 23:58:27 (25 weeks 19 hours 2 minutes 8 seconds) #1808928 | | view posts since this #10

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-15 23:58:56 (25 weeks 19 hours 1 minute 39 seconds) #1808929 | | view posts since this #11

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

mjeffries wrote:

2008-07-15 23:59:48 (25 weeks 19 hours 47 seconds) #1808931 | | view posts since this #12

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

RJCornine wrote:

2008-07-16 00:00:35 (25 weeks 19 hours) #1808932 | | view posts since this #13

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-16 00:40:56 (25 weeks 18 hours 19 minutes 39 seconds) #1808963 | | view posts since this #14

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-16 00:42:30 (25 weeks 18 hours 18 minutes 5 seconds) #1808966 | | view posts since this #15

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-16 00:45:57 (25 weeks 18 hours 14 minutes 38 seconds) #1808973 | | view posts since this #16

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)

2008-07-16 10:31:28 (25 weeks 8 hours 29 minutes 7 seconds) #1809200 | | view posts since this #17

Re: Another meth tune quesiton.. everyone respond asap please.. thanks :-)