2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

Meth question...

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Old Sep 30, 2008 | 11:08 PM
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Meth question...

I couldn't find this in searching....

Is meth injection safe on a stage 2 tune?

Also what brand would you reccomend and I know washer fluid has meth in it but what brand do people tend to use?

Thanks for any input
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Old Sep 30, 2008 | 11:10 PM
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I dont think spraying meth is worth it without tuning personally.
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Old Sep 30, 2008 | 11:21 PM
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Originally Posted by an0malous
I dont think spraying meth is worth it without tuning personally.
So.... Custom tuning FTW?
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Old Sep 30, 2008 | 11:25 PM
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yuppers. to get your moneysworth from meth, you need to tune.
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Old Sep 30, 2008 | 11:26 PM
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To gain power from it you will need some sort of tuning, but you always gain a safety factor. But if you are in need of a kit check out our website, I can give you a discount so pm me with your needs.
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Old Sep 30, 2008 | 11:26 PM
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Originally Posted by an0malous
yuppers. to get your moneysworth from meth, you need to tune.
I know meth lowers intake temps but why would you need custom tuning for that? I'm not exactly educated on meth injection...
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Old Sep 30, 2008 | 11:30 PM
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if your not tuning, then you should be spraying pure water, water has about double the latent heat absorbtion or methanol.
the only reason people spray meth AND water, is because methanol is a high octane FUEL.

water doesnt burn, water doesnt make power.
meth burns, meth makes power.
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Old Sep 30, 2008 | 11:40 PM
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Originally Posted by an0malous
if your not tuning, then you should be spraying pure water, water has about double the latent heat absorbtion or methanol.
the only reason people spray meth AND water, is because methanol is a high octane FUEL.

water doesnt burn, water doesnt make power.
meth burns, meth makes power.
So I can do a water injection?! That's safe? Just spraying water in the motor to make it cooler?
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Old Sep 30, 2008 | 11:42 PM
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Yup. Its not like you have a garden hose in there. lol

I don't know if you really need to worry about cylinder temps on a stage 2 tune though. Isn't stage 2 pretty rich?
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Old Sep 30, 2008 | 11:43 PM
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water injection has been used for i dunno, like 80 years or something?

look it up. its a long established technique.

and yeah, S2 is pig rich, i dunno if id want to spray ANYTHING on that tune.
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Old Sep 30, 2008 | 11:44 PM
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Originally Posted by XM15
Yup. Its not like you have a garden hose in there. lol

I don't know if you really need to worry about cylinder temps on a stage 2 tune though. Isn't stage 2 pretty rich?
It gets ever so hot though.... My IAT2s are generally 40-50 degrees higher than my IAT1. I'm running a 2.9 pulley
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Old Oct 1, 2008 | 12:04 AM
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with a 2.9" pulley its a different story. your iat2 will be high unless you have cooling mods.

water will help cooling the charge temps, meth helps because its a higher octane fuel (pure meth is over 120 octane). the only way running any percentage of meth will help you without a tune is if you already have knock retard. knock is detonation and when the computer detects it it will command less ignition timing to stop it. injecting meth can help stop detonation. however, injecting water to cool charge temps can also give the same effect.
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Old Oct 1, 2008 | 12:10 AM
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Originally Posted by Sharkey
with a 2.9" pulley its a different story. your iat2 will be high unless you have cooling mods.

water will help cooling the charge temps, meth helps because its a higher octane fuel (pure meth is over 120 octane). the only way running any percentage of meth will help you without a tune is if you already have knock retard. knock is detonation and when the computer detects it it will command less ignition timing to stop it. injecting meth can help stop detonation. however, injecting water to cool charge temps can also give the same effect.
So water injection could be safe on a Stage 2? I'm already searching for a Heat Exchanger and surge tank. I'm looking to get my IAT2s close to my IAT1s...
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Old Oct 1, 2008 | 12:37 AM
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water injection would be fine on stage 2, however meth would not because the stage 2 tune is so rich. I would plan on grabbing either 1, another tune, 2 cooling mods like meth/water injection, cxracing heat exchanger, dual pass endplate with option b, all that jazz.

Basically what you DONT want to do is have your engine running to rich. Spraying just water into the cai or tb, i recommend the cai, will absorb the heat and lower the iat2s. When you spray methanol and water, the methanol helps with detonation. However methanol doesn't help with cooling as well as water. The best mixture depends on the mods and tune you have, and the power you want to make.

Remember, you only need methanol if you have knock or want to increase your timing. Other then that, methanol is expensive and pointless.

I am a big fan of windshield washer fluid. It's my favorite color and its 70water/30meth. Pretty good mixture, and if you add 4 bottles of heet, you come up with a 50/50 mixture. Can't go wrong with that. My tune is setup for windshield washer fluid, and I enjoy it.

I also would recommend using a 5gph nozzle, again mounted in the cai.

Last edited by Zach06CobaltSC; Oct 1, 2008 at 12:37 AM. Reason: Automerged Doublepost
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Old Oct 1, 2008 | 08:24 AM
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Originally Posted by Zach06CobaltSC
water injection would be fine on stage 2, however meth would not because the stage 2 tune is so rich. I would plan on grabbing either 1, another tune, 2 cooling mods like meth/water injection, cxracing heat exchanger, dual pass endplate with option b, all that jazz.

Basically what you DONT want to do is have your engine running to rich. Spraying just water into the cai or tb, i recommend the cai, will absorb the heat and lower the iat2s. When you spray methanol and water, the methanol helps with detonation. However methanol doesn't help with cooling as well as water. The best mixture depends on the mods and tune you have, and the power you want to make.

Remember, you only need methanol if you have knock or want to increase your timing. Other then that, methanol is expensive and pointless.

I am a big fan of windshield washer fluid. It's my favorite color and its 70water/30meth. Pretty good mixture, and if you add 4 bottles of heet, you come up with a 50/50 mixture. Can't go wrong with that. My tune is setup for windshield washer fluid, and I enjoy it.

I also would recommend using a 5gph nozzle, again mounted in the cai.
BUt - make sure you mount the nozzle AFTER the MAF sensor!
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Old Oct 1, 2008 | 08:30 AM
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Originally Posted by Zach06CobaltSC
water injection would be fine on stage 2, however meth would not because the stage 2 tune is so rich. I would plan on grabbing either 1, another tune, 2 cooling mods like meth/water injection, cxracing heat exchanger, dual pass endplate with option b, all that jazz.

Basically what you DONT want to do is have your engine running to rich. Spraying just water into the cai or tb, i recommend the cai, will absorb the heat and lower the iat2s. When you spray methanol and water, the methanol helps with detonation. However methanol doesn't help with cooling as well as water. The best mixture depends on the mods and tune you have, and the power you want to make.

Remember, you only need methanol if you have knock or want to increase your timing. Other then that, methanol is expensive and pointless.

I am a big fan of windshield washer fluid. It's my favorite color and its 70water/30meth. Pretty good mixture, and if you add 4 bottles of heet, you come up with a 50/50 mixture. Can't go wrong with that. My tune is setup for windshield washer fluid, and I enjoy it.

I also would recommend using a 5gph nozzle, again mounted in the cai.
What this guy said: I learned a lot on a different thread that he was giving input on about meth. He and Area47 were very helpful.
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Old Oct 1, 2008 | 08:31 AM
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I ran meth on my stage 2 tune for a couple of weeks until i retuned it, it was un goddly rich, like in the 9's A/F wise.....definatly retune for it!!
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Old Oct 1, 2008 | 02:46 PM
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OK. Looks like I may do water injection after HE and what not...

First. Can the water corrode the blower and intake
second. What kit would you recommmend
third. what nozzles etc etc etc
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Old Oct 1, 2008 | 03:14 PM
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Originally Posted by SS07
OK. Looks like I may do water injection after HE and what not...

First. Can the water corrode the blower and intake
second. What kit would you recommmend
third. what nozzles etc etc etc
Water is corrosive, Meth is Double corrosive.
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Old Oct 1, 2008 | 06:23 PM
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O.... well I don't want it corroding up my intake and blower so I believe I will be passing on that...

Thanks for the input guys!
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Old Oct 1, 2008 | 07:42 PM
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Originally Posted by SS07
O.... well I don't want it corroding up my intake and blower so I believe I will be passing on that...

Thanks for the input guys!
You better not use your washer fluid anymore either. Because that gets on your paint when you use it, what do you think is stronger your paint or your engine? It will not corrode or harm your blower or engine in any way.

Last edited by Josh@ottp; Oct 1, 2008 at 07:42 PM. Reason: Automerged Doublepost
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