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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N57 / M57 Turbo Diesel Discussions - 335d > Simplify METH for us all...



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      07-24-2014, 12:39 AM   #23
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Originally Posted by iaknown View Post
I second that question. I think some of you guys are running the Snow tdi kit so you are running 2 separate ones correct? What sizes are you all running either way??
I am ruining the ~300 ml aem nozzle, the middle one, it says use that one for 300 hp. Dont mind having a bit smaller one as meth is expensive here.
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      07-25-2014, 12:48 PM   #24
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Can someone with experience lend advice?

I'm on eBay looking at kits and there's about a dozen that look fine to me. However, they're not all the same by any means. I'm trying to spend around $599 or less. If I can have two nozzles great, do I need two? And the 600+ sized nozzle is something that I'll want if I can't get it in the kit. I wouldn't mind a "large" reservoir for the trunk but it's not necessary. Hope that all is enough info.

It doesn't have to come from eBay but I prefer it with my PayPal balance being the funding source.

Can't wait to get on Meth.
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      07-25-2014, 01:23 PM   #25
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Originally Posted by austinla335d View Post
Can someone with experience lend advice?

I'm on eBay looking at kits and there's about a dozen that look fine to me. However, they're not all the same by any means. I'm trying to spend around $599 or less. If I can have two nozzles great, do I need two? And the 600+ sized nozzle is something that I'll want if I can't get it in the kit. I wouldn't mind a "large" reservoir for the trunk but it's not necessary. Hope that all is enough info.

It doesn't have to come from eBay but I prefer it with my PayPal balance being the funding source.

Can't wait to get on Meth.
use Devilsown nozzles, that are the best by far, I like their kit, im building one should be just a little over $400, I will use my urea tank for the meth...all the pumps are the same manufacturer...
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      07-25-2014, 01:30 PM   #26
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Quote:
Originally Posted by DieselRacer
Quote:
Originally Posted by austinla335d View Post
Can someone with experience lend advice?

I'm on eBay looking at kits and there's about a dozen that look fine to me. However, they're not all the same by any means. I'm trying to spend around $599 or less. If I can have two nozzles great, do I need two? And the 600+ sized nozzle is something that I'll want if I can't get it in the kit. I wouldn't mind a "large" reservoir for the trunk but it's not necessary. Hope that all is enough info.

It doesn't have to come from eBay but I prefer it with my PayPal balance being the funding source.

Can't wait to get on Meth.
use Devilsown nozzles, that are the best by far, I like their kit, im building one should be just a little over $400, I will use my urea tank for the meth...all the pumps are the same manufacturer...
Nozzles are nozzles. I'd focus on getting the best kit out there instead.
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      07-25-2014, 02:44 PM   #27
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Originally Posted by GreekboyD View Post
Nozzles are nozzles. I'd focus on getting the best kit out there instead.
Do some more research, your so wrong its not even funny, but to each is own...
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      07-25-2014, 02:45 PM   #28
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Build your own kit, that will be the best one...
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      07-25-2014, 04:56 PM   #29
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I maybe throwing the CAT amongst the pigeons, but if you already have low charge the temps the gains with meth the power gains will be greatly diminished.

I know on petrols it cools the intake charge thus, you can dial in more ignition timing but how does it work on a diesel tuning wise, just increase diesel injected and thus lower EGT's?

I do have experience with a AEM meth system on my old supercharged S2000 which i tuned and installed (found it a little laggy TBH), that dropped temps significantly (around 25c) due to poor heat exchange system but didn't do much for power gains with the timing.

Just wondering how in the tune you can take advantage of meth in a diesel and how it works in a diesel technically/theoretically?, because over here in the UK where its not as hot as the US the gains will be small IMO.

Thanks
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      07-25-2014, 06:00 PM   #30
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Quote:
Originally Posted by ajs_335d
I maybe throwing the CAT amongst the pigeons, but if you already have low charge the temps the gains with meth the power gains will be greatly diminished.

I know on petrols it cools the intake charge thus, you can dial in more ignition timing but how does it work on a diesel tuning wise, just increase diesel injected and thus lower EGT's?

I do have experience with a AEM meth system on my old supercharged S2000 which i tuned and installed (found it a little laggy TBH), that dropped temps significantly (around 25c) due to poor heat exchange system but didn't do much for power gains with the timing.

Just wondering how in the tune you can take advantage of meth in a diesel and how it works in a diesel technically/theoretically?, because over here in the UK where its not as hot as the US the gains will be small IMO.

Thanks
I'm 75% interested in the carbon cleaning advantages. The extra power will be fun, but it's not my priority.
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      07-25-2014, 07:27 PM   #31
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Quote:
Originally Posted by ajs_335d View Post
I maybe throwing the CAT amongst the pigeons, but if you already have low charge the temps the gains with meth the power gains will be greatly diminished.

I know on petrols it cools the intake charge thus, you can dial in more ignition timing but how does it work on a diesel tuning wise, just increase diesel injected and thus lower EGT's?

I do have experience with a AEM meth system on my old supercharged S2000 which i tuned and installed (found it a little laggy TBH), that dropped temps significantly (around 25c) due to poor heat exchange system but didn't do much for power gains with the timing.

Just wondering how in the tune you can take advantage of meth in a diesel and how it works in a diesel technically/theoretically?, because over here in the UK where its not as hot as the US the gains will be small IMO.

Thanks
Methanol is effectively extra fuel to burn for diesel. You would make power without any extra tuning and its not just about charge temp.
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      07-25-2014, 08:38 PM   #32
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Quote:
Originally Posted by austinla335d
Quote:
Originally Posted by ajs_335d
I maybe throwing the CAT amongst the pigeons, but if you already have low charge the temps the gains with meth the power gains will be greatly diminished.

I know on petrols it cools the intake charge thus, you can dial in more ignition timing but how does it work on a diesel tuning wise, just increase diesel injected and thus lower EGT's?

I do have experience with a AEM meth system on my old supercharged S2000 which i tuned and installed (found it a little laggy TBH), that dropped temps significantly (around 25c) due to poor heat exchange system but didn't do much for power gains with the timing.

Just wondering how in the tune you can take advantage of meth in a diesel and how it works in a diesel technically/theoretically?, because over here in the UK where its not as hot as the US the gains will be small IMO.

Thanks
I'm 75% interested in the carbon cleaning advantages. The extra power will be fun, but it's not my priority.
That's the main reason i wanted to.. Really helps when the ambient temps are 90+
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      07-26-2014, 12:14 AM   #33
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Originally Posted by 335dlci View Post
That's the main reason i wanted to.. Really helps when the ambient temps are 90+
get a bigger intercooler for that...
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      07-26-2014, 12:22 AM   #34
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Quote:
Originally Posted by DieselRacer
Quote:
Originally Posted by 335dlci View Post
That's the main reason i wanted to.. Really helps when the ambient temps are 90+
get a bigger intercooler for that...
Meth= lower temp and cleaning
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      07-26-2014, 12:31 AM   #35
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Originally Posted by 335dlci View Post
Meth= lower temp and cleaning
I have meth, intercooler still lowers temps more...
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      07-26-2014, 01:10 AM   #36
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FWIW meth is capable of lowering temps further than an intercooler can. Intercooler can only reach ambient, meth can cool to below ambient. Its not best suited for that method though unless you want to fill the tank every day
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      07-26-2014, 01:31 AM   #37
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Originally Posted by Hoooper View Post
FWIW meth is capable of lowering temps further than an intercooler can. Intercooler can only reach ambient, meth can cool to below ambient. Its not best suited for that method though unless you want to fill the tank every day
Correct, I was meaning a perminant mod that was always working...
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      07-28-2014, 11:38 PM   #38
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So what works best? Boost enabled or MAF enabled?
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      07-29-2014, 06:29 PM   #39
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The WaterMeth store on eBay seems to have some great items, albeit a little bit pricey but they are really up on the diesel meth injection scene... good nozzles, 300psi pumps, and great sump tanks. Lots of nice features.

They actually drop-ship from AIS. Here's the kit I purchased: http://www.alcoholinjectionsystems.c...duct_info.html
When comparison shopping, the AIS kits stand out for a few reasons, but since they aren't a site sponsor I won't delve into it. Just know that I did a lot of research and side-by-side comparison, and for the money this is the best kit out there. The kit I purchased was actually through the eBay seller above, avoiding tax, getting free shipping, and it includes a low level sensor ($40 addition from AIS) and two nozzles to test out. Essentially, I saved about $100 vs. ordering directly from AIS.

Nozzle size/pressure question:
I mentioned what many of you guys are running, nozzle wise, and he is sending me two nozzles- score! One 8 GPH (504 ml/min) and a 10gph (630 ml/min). I've read that, depending on the pressure, you can double or even more than double the rating on the nozzle... like at 250psi the 504ml/min can put out something like 1200 ml/min, but the whole point of having a high psi pump is for better atomization, right? So in that case, would I want a +/- 300ml/min nozzle and run it at nearer the 300psi peak of the pump included with the kit?

I guess these are the kind of questions that caused me to start this post to begin with!

One huge perk is that I can install/uninstall much more quickly since everything is pre-wired, so the 1/8" NPT and running cables/wires is all the remains, though it'll still take me a full day because I'm anal like that... and I want a discreet yet easy to remove/hide install way more than I want a few extra hours to do other chores.

Last edited by austinla335d; 07-30-2014 at 11:54 AM.. Reason: purchased kit update
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      09-25-2014, 09:20 PM   #40
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I just became aware of the carbon build up problem on our cars and have been researching meth injection. Some of the articles claim up to 30% horsepower increase on diesels with 50% meth mix. But never exceed 50%.

I still have some basic questions – will a meth setup void any extended warranty?
I run meth on a 400 hp Mitsubishi and have it set so it starts spraying at 12 lbs of boost. I only use one nozzle placed right after the turbo.
On our diesels a.) How much is the stock boost? B.) Do you set the meth unit up the same way to start spraying at say 50% boost?
This thread mentions using two nozzles – why and where are they placed?

Here is the goody. I am running a DTUK chip on my diesel, I am guessing it is pushing about an extra 40hp. Can you run the meth and the chip at the same time? Will the tranny hold?

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      09-25-2014, 10:28 PM   #41
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Quote:
Originally Posted by demon View Post
I just became aware of the carbon build up problem on our cars and have been researching meth injection. Some of the articles claim up to 30% horsepower increase on diesels with 50% meth mix. But never exceed 50%.

I still have some basic questions – will a meth setup void any extended warranty?
I run meth on a 400 hp Mitsubishi and have it set so it starts spraying at 12 lbs of boost. I only use one nozzle placed right after the turbo.
On our diesels a.) How much is the stock boost? B.) Do you set the meth unit up the same way to start spraying at say 50% boost?
This thread mentions using two nozzles – why and where are they placed?

Here is the goody. I am running a DTUK chip on my diesel, I am guessing it is pushing about an extra 40hp. Can you run the meth and the chip at the same time? Will the tranny hold?

John
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all options except split rear seat.
30% seems high, I notice it, but not that much. I am only running 300ml though, some people apparently run up to 1000. Our boost is 25psi max i think, so mine comes on at 10 and progresses to 25. I do notice it when i have it off... I get on it, think something is wrong, and look down and realize my meth is off (I have a kill switch in the ash tray which i switch off going over hills). I also have a chip as you mention. Our trans is supposed to be very strong so no worries.
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      09-26-2014, 02:35 PM   #42
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I run about an 800 ml nozzle at 50/50, no trans issues so far over probably close to 30k miles.

30% is very doubtful as most of us have them set up. Maybe possible with a big nozzle and 75/25.

Stock boost is around 26 PSI

The reason for running two nozzles would be to run a small one for a mileage and CBU cleaning nozzle which is spraying frequently and then one big one for power.
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      09-26-2014, 06:45 PM   #43
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I'm running a 60 & 625 nozzle. At the moment I get a lot of quench around the set point for the larger nozzle, and I think it's due to how they are positioned in the tube - about 90 degrees from each other.

Max boost I've seen is 29psi.
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      09-26-2014, 10:44 PM   #44
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Max boost I've seen is 29psi.
After DPF delete and a tune, i am seeing a max of 36psi boost
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