When to meth ?
05-10-2015, 08:00 PM
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When to meth ? My setup has been running great and I've been putting miles on it makin sure everything is good. Im real happy so far with the power it (feels like) its makin. No dyno or track times yet. Definitely feels faster than my stroker n/a setup that was 11.50s
Since we always want more, i wanna keep this thing together for awhile. I'm hitting 11-13 lbs on the street with limited traction on street tires. So my question is... when (lbs of boost) do i need to start sprayin water/meth to avoid poppin this? Im using 93 octane and timing is in check at 12-14*
I think i would prefer progressive vs all at once because it's mostly street driven (hard) 80/20. Like to hit the dyno for final adjustments to boost etc then off to the track for the real numbers.
Since we always want more, i wanna keep this thing together for awhile. I'm hitting 11-13 lbs on the street with limited traction on street tires. So my question is... when (lbs of boost) do i need to start sprayin water/meth to avoid poppin this? Im using 93 octane and timing is in check at 12-14*
I think i would prefer progressive vs all at once because it's mostly street driven (hard) 80/20. Like to hit the dyno for final adjustments to boost etc then off to the track for the real numbers.
05-10-2015, 08:47 PM
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If you plan on pushing past about 13 psi I'd consider getting the meth. You can do a single 15gph nozzle progressive. If you plan on over 18 psi I'd go dual 15s. Alky control is the way to go.
05-10-2015, 10:18 PM
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Good info,just what im lookin for. What hp level will a 15gph support? Or does it not work that way? Is it just that its safe flow rate for 93 octane? 18* is kinda up there,no?
05-10-2015, 10:30 PM
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15 will take you to around 600whp, 2 15s or 30 gph people have gone 1000-1100 whp. 18 degrees is not uncommon at all with meth or e85, some go higher. When your on dyno or track just go up a degree at a time untill it doesn't go any faster or you get knock. Mine made about 50 more whp with 20 vs 18 degrees, I backed it down to 18 just to be super safe.
05-10-2015, 10:43 PM
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i made a lil under 600whp and used one 15, sprayed it on full blast, i moved to dual 15's now and makin around 900wheel and its supporting it fine.. if your running 93 and making any kind of decent power, meth should be used.. alky control alll the way man get a kit for sure
05-10-2015, 11:00 PM
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15 will take you to around 600whp, 2 15s or 30 gph people have gone 1000-1100 whp. 18 degrees is not uncommon at all with meth or e85, some go higher. When your on dyno or track just go up a degree at a time untill it doesn't go any faster or you get knock. Mine made about 50 more whp with 20 vs 18 degrees, I backed it down to 18 just to be super safe.
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05-10-2015, 11:03 PM
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i made a lil under 600whp and used one 15, sprayed it on full blast, i moved to dual 15's now and makin around 900wheel and its supporting it fine.. if your running 93 and making any kind of decent power, meth should be used.. alky control alll the way man get a kit for sure
That's 2 votes for alky control,anyone else?
05-10-2015, 11:27 PM
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Also, how will water/meth affect the existing tune i have? How will the ecu (wbO2) react from the addition of "fuel", will it reduce IDC to maintain my AF targets?
Will it add fuel from the drastic temp drop the IAT will see from being "soaked" ?
Will it add fuel from the drastic temp drop the IAT will see from being "soaked" ?
05-11-2015, 04:09 PM
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The computer will not do anything by itself when spraying the meth on a speed density tune. You need to have the car tuned for the meth. The tuner will will remove fuel from the area of the ve table that is effected by the meth. Once you are tuned for meth dont ever turn it off.
05-12-2015, 06:29 AM
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The computer will not do anything by itself when spraying the meth on a speed density tune. You need to have the car tuned for the meth. The tuner will will remove fuel from the area of the ve table that is effected by the meth. Once you are tuned for meth dont ever turn it off.
Thanks guys
05-12-2015, 09:14 AM
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Imo use meth if you have intercooling problems, boosting a high comp motor or need an octane boost to make power but dont want to run race gas or e85.
If you are on E85 i dont see a reason to have meth if you have an intercooler.
Its not so much a boost level or power level, its a temp thing. Some intercoolers do a great job by themselves. Some dont and could use more cooling.
More cooling and abit of octane boost from meth is always a good thing tho. Nice to add for safety regardless but as said, not necessity. I run over 25 psi on 93 only, but motor is setup for and tuned around those conditions and its been working fine. Lol
If you are on E85 i dont see a reason to have meth if you have an intercooler.
Its not so much a boost level or power level, its a temp thing. Some intercoolers do a great job by themselves. Some dont and could use more cooling.
More cooling and abit of octane boost from meth is always a good thing tho. Nice to add for safety regardless but as said, not necessity. I run over 25 psi on 93 only, but motor is setup for and tuned around those conditions and its been working fine. Lol
05-12-2015, 01:05 PM
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Imo use meth if you have intercooling problems, boosting a high comp motor or need an octane boost to make power but dont want to run race gas or e85.
If you are on E85 i dont see a reason to have meth if you have an intercooler.
Its not so much a boost level or power level, its a temp thing. Some intercoolers do a great job by themselves. Some dont and could use more cooling.
More cooling and abit of octane boost from meth is always a good thing tho. Nice to add for safety regardless but as said, not necessity. I run over 25 psi on 93 only, but motor is setup for and tuned around those conditions and its been working fine. Lol
If you are on E85 i dont see a reason to have meth if you have an intercooler.
Its not so much a boost level or power level, its a temp thing. Some intercoolers do a great job by themselves. Some dont and could use more cooling.
More cooling and abit of octane boost from meth is always a good thing tho. Nice to add for safety regardless but as said, not necessity. I run over 25 psi on 93 only, but motor is setup for and tuned around those conditions and its been working fine. Lol
Whats different about your tune that you're getting away with 25 on 93?