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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Methanol in the the winter?



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      11-13-2010, 06:25 PM   #45
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"should be" is not the best way to approach things though
egt's can be lowered by adding more fuel for richer mixture, by adding alcohol/water injection and by increasing timing. A combination of these measures will provide best results in keeping your EGTs at or below 1600 F at load.

100% meth "may" be ok, but using a mix will be ok.. its just odd to apply a scientific approach to some tuning variable, but hope and faith to others
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      11-13-2010, 06:36 PM   #46
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Quote:
Originally Posted by Mr. 5 View Post
Depends what tune you are running.
A tune that maximizes power....
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      11-13-2010, 06:37 PM   #47
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Quote:
Originally Posted by bobbers114 View Post
"should be" is not the best way to approach things though
egt's can be lowered by adding more fuel for richer mixture, by adding alcohol/water injection and by increasing timing. A combination of these measures will provide best results in keeping your EGTs at or below 1600 F at load.

100% meth "may" be ok, but using a mix will be ok.. its just odd to apply a scientific approach to some tuning variable, but hope and faith to others
Well the topic has been beat to death really to the point of a moot subject.

You have the option of running 100% meth, or finding the right balance of nozzle size and meth/water ratio to produce the same or Better results in theory.

Like Clap135 said earlier, he is throwing codes for EGT being too LOW, so I doubt EGT are too high!

Ive been running 90-100% meth for a good year now seamlessly with full ignition timing and no knock.

/discussion
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      11-15-2010, 04:57 AM   #48
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Quote:
Originally Posted by JPSlick View Post
If the car is not knocking, then EGT's should be in check. IIRC.
Again, you are using methanol to cool where considerably less water is needed to do the same job. Again the volume of water needed is literally over 1/2 the amount of methanol needed for cooling since they favorable thermodynamic properties.
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      11-15-2010, 11:03 AM   #49
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Originally Posted by Former_Boosted_IS View Post
Again, you are using methanol to cool where considerably less water is needed to do the same job. Again the volume of water needed is literally over 1/2 the amount of methanol needed for cooling since they favorable thermodynamic properties.
I understand that my friend. However, no reason to fix what aint broken?

Since april or may of 2010 I have used less then 5 gallons of meth, so its not like I'm trying to save a few dollars by using water.

If meth was being used in an astronomical amount I would then maybe take the time to find the happy medium of water and nozzle size. Maybe you already know this answer? At 17-18 PSI, what would be the optimum nozzle size and meth/water ratio that would produce the same power/safety/ignition (or better) as 100% meth mixture, m12 Nozzle, @ 200 PSI Pump pressure.
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      11-15-2010, 11:41 AM   #50
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Quote:
Originally Posted by JPSlick View Post
I understand that my friend. However, no reason to fix what aint broken?

Since april or may of 2010 I have used less then 5 gallons of meth, so its not like I'm trying to save a few dollars by using water.

If meth was being used in an astronomical amount I would then maybe take the time to find the happy medium of water and nozzle size. Maybe you already know this answer? At 17-18 PSI, what would be the optimum nozzle size and meth/water ratio that would produce the same power/safety/ignition (or better) as 100% meth mixture, m12 Nozzle, @ 200 PSI Pump pressure.
what about a dual CM7 setup at 200psi at 17-18psi?
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      11-15-2010, 12:11 PM   #51
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Jp who u kidding. You and I both know neither of us are going to waste Meth time and money in trying different combos when the one currently used has worked flawless for over a year.
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      11-15-2010, 12:48 PM   #52
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Quote:
Originally Posted by Clap135 View Post
Jp who u kidding. You and I both know neither of us are going to waste Meth time and money in trying different combos when the one currently used has worked flawless for over a year.
Your 99% right. Still curious if he had a good answer though. If he knew off the bat, I do have a collection of nozzles, and looking to upgrade to a solenoid soon too.
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      11-16-2010, 05:34 AM   #53
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Quote:
Originally Posted by Clap135 View Post
Jp who u kidding. You and I both know neither of us are going to waste Meth time and money in trying different combos when the one currently used has worked flawless for over a year.
It has never been my intention to convince you of anything. You can choose whatever you want and run your car however you feel best. No problems there. The community has read the facts and they can choose.
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      11-16-2010, 05:36 AM   #54
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Quote:
Originally Posted by JPSlick View Post
I understand that my friend. However, no reason to fix what aint broken?

Since april or may of 2010 I have used less then 5 gallons of meth, so its not like I'm trying to save a few dollars by using water.

If meth was being used in an astronomical amount I would then maybe take the time to find the happy medium of water and nozzle size. Maybe you already know this answer? At 17-18 PSI, what would be the optimum nozzle size and meth/water ratio that would produce the same power/safety/ignition (or better) as 100% meth mixture, m12 Nozzle, @ 200 PSI Pump pressure.
I would need to know quantity you are flowing. Start stop PSI. How fast does your setup react? In my opinion, timing drops a lot of the time are caused by unbelievably slow responding check valves.
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      11-16-2010, 02:14 PM   #55
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Good read, Im not running meth quite yet but I know who to talk to when I do. Thanks..
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      11-16-2010, 02:19 PM   #56
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Quote:
Originally Posted by Former_Boosted_IS View Post
I would need to know quantity you are flowing. Start stop PSI. How fast does your setup react? In my opinion, timing drops a lot of the time are caused by unbelievably slow responding check valves.
My timing has been spot on time and time again. At the end of the day I'm flowing atleast 700ML/min.
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      11-17-2010, 04:52 AM   #57
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Quote:
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My timing has been spot on time and time again. At the end of the day I'm flowing atleast 700ML/min.
So you do not know what you are flowing? This is a big part of how to calculate what is best for your car.
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      11-17-2010, 07:58 AM   #58
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Quote:
Originally Posted by Former_Boosted_IS View Post
In my opinion, timing drops a lot of the time are caused by unbelievably slow responding check valves.
Check valves is a big NO NO, that's for shure.
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      11-17-2010, 09:00 AM   #59
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Meth in the winter is great.....for keeping ice off your windshield!
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      11-17-2010, 10:52 AM   #60
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Quote:
Originally Posted by Former_Boosted_IS View Post
So you do not know what you are flowing? This is a big part of how to calculate what is best for your car.
Its alteast 700 ML/min. Ive done a bucket test in the past. And on my labonte failsafe I run a "14" and there is supposedly some mathematic conversion that will output a ML/min I just dont know it.
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      11-17-2010, 11:06 AM   #61
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Quote:
Originally Posted by JPSlick View Post
Its alteast 700 ML/min. Ive done a bucket test in the past. And on my labonte failsafe I run a "14" and there is supposedly some mathematic conversion that will output a ML/min I just dont know it.
Without the number, it is hard. You should be able to do the math to figure out exact flow.

Are you check valve or solenoid?
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      11-17-2010, 11:08 AM   #62
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Quote:
Originally Posted by Former_Boosted_IS View Post
Without the number, it is hard. You should be able to do the math to figure out exact flow.

Are you check valve or solenoid?
My friend I said 700 ML/Min (use that as your basis) its atleast 700, might be closer to 750. Thats why im low balling it.

Check valve, Will be upgrading to solenoid (guaranteed).
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      11-17-2010, 11:39 AM   #63
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Quote:
Originally Posted by JPSlick View Post
My friend I said 700 ML/Min (use that as your basis) its atleast 700, might be closer to 750. Thats why im low balling it.

Check valve, Will be upgrading to solenoid (guaranteed).
I have a solenoid sitting in my house, thinking about putting it back in. Faster meth response since it doesn't have to crack a spring loaded plate to start spraying.
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      11-18-2010, 05:19 AM   #64
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Quote:
Originally Posted by JPSlick View Post
My friend I said 700 ML/Min (use that as your basis) its atleast 700, might be closer to 750. Thats why im low balling it.

Check valve, Will be upgrading to solenoid (guaranteed).
Upgrade to a solenoid first, then we can toy around with it. The check valves react so slow that you can knock in the initial stages of WOT and backfire when letting off the gas.

Anyway, I would try about 600 ml/min methanol and 100 ml/min of water if you want a high meth content. Every car is different, so you have to toy with it a bit. Water is really to cool the combustion chamber temps, so without that probe it is tough to know what is happening for sure.
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