lol google 'Bar to PSI' calculator :rollsmile:
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Read the WELCOME ALL BMWFANATICS post.
Lets talk Meth
- Thread starter Kish2604
- Start date
bmsportzn135i
///Member
:flyfun: Now why didnt i think about that...
Honestly, I think that tank is too small.. You'll prob end up changing it to something bigger.. but I suppose its no train smash, its quite easy to change out the tank.
All my guys opt for the 8.5l tank from devils parts.. its much bigger and actually looks pretty cool.
Despite popular belief, the liquid in a water meth kit is not a fire hazard as such. Even if the line leaks, and you drop a match on it, it wont catch alight - remember, its 50% water.
Ive actually tested my theory so Im confident in the results.
Just a few things to remember:
Never run 100% meth in the tank - it will destroy the pump and may corrode some of the engine bits like the fuel rail. 100% meth over time will corrode any aluminium.
If you dont have meth, 100% distilled water is fine or simply switch to map 2. (I had someone ask if he could put tap water - this is also a NO lol)
NB: Mix the meth correctly, otherwise you arent getting the full potential from the kit. you cant mix 1l of meth and 1l of distilled water and think its a 50/50 mix - most people do this, I did it for years without realizing..
Btw, Im also a meth addict :rollsmile:
All my guys opt for the 8.5l tank from devils parts.. its much bigger and actually looks pretty cool.
Despite popular belief, the liquid in a water meth kit is not a fire hazard as such. Even if the line leaks, and you drop a match on it, it wont catch alight - remember, its 50% water.
Ive actually tested my theory so Im confident in the results.
Just a few things to remember:
Never run 100% meth in the tank - it will destroy the pump and may corrode some of the engine bits like the fuel rail. 100% meth over time will corrode any aluminium.
If you dont have meth, 100% distilled water is fine or simply switch to map 2. (I had someone ask if he could put tap water - this is also a NO lol)
NB: Mix the meth correctly, otherwise you arent getting the full potential from the kit. you cant mix 1l of meth and 1l of distilled water and think its a 50/50 mix - most people do this, I did it for years without realizing..
Btw, Im also a meth addict :rollsmile:
Hi My name is Firoze and im a meth addict 
......actually im lying, I just couldnt resist saying that, but im sure once my MP ends in feb the itch for mods will start.
Big ups to all you guys for sharing your wealth of knowledge, ive subscribed to this thread already so when the time comes ive got reference. Thanks guys.
......actually im lying, I just couldnt resist saying that, but im sure once my MP ends in feb the itch for mods will start. Big ups to all you guys for sharing your wealth of knowledge, ive subscribed to this thread already so when the time comes ive got reference. Thanks guys.
So the topic turns to meth nozzles/injectors, would it be better to run say a pair of CM5 nozzles with a max spray rate of 340cc/min x 2 or 1 cm10 nozzle with a max flow rate of 800cc/min?
Apart from absolute volume flow being delivered in the single being better, would the pair of cm5 be superior to the single cm10 in terms of finer spray ypattern?
Would the single solenoid be able to handle the dual nozzle set up via a T-piece or would ultimately 2 solenoids be better?
Lastly, were in the charge pipe would you prefer your injector to be placed? I currently have a version 1 stett cp and the twin meth bungs are placed verclose to the throttle body where as on the v2 cp the bungs are placed between the dvs and the cold side pipe of the intercooler....
:thumbs:
Apart from absolute volume flow being delivered in the single being better, would the pair of cm5 be superior to the single cm10 in terms of finer spray ypattern?
Would the single solenoid be able to handle the dual nozzle set up via a T-piece or would ultimately 2 solenoids be better?
Lastly, were in the charge pipe would you prefer your injector to be placed? I currently have a version 1 stett cp and the twin meth bungs are placed verclose to the throttle body where as on the v2 cp the bungs are placed between the dvs and the cold side pipe of the intercooler....
:thumbs:
How close to the throttle does play an important role. I think Stett would have Placed the bungs with that in mind, so you should be fine.
Ive run: dual cm10, single cm10 and single cm7 on a 335i. I think youll be fine with a cm10. Remember its a progrssive meth kit.
The pump etc will handle, I have a similar setup on my car running 6 x DV01 nozzles (direct port)
Ive run: dual cm10, single cm10 and single cm7 on a 335i. I think youll be fine with a cm10. Remember its a progrssive meth kit.
The pump etc will handle, I have a similar setup on my car running 6 x DV01 nozzles (direct port)
i would run Duel purely because if one gets blocked least you still have some meth coming out the other one...
George Smooth
///Member
Kish2604 said:
The rule of thumb with meth placement is the closer to the throttle body the better the octane affect, further away is better for cooling. The intake temperature readings are obscured though because the meth sprays past the tmap which affects the reading. I also run the Stett close to the throttle, prior to that I had the nozzle on the bend coming into the straight before the DV's. I prefered to move it further upstream as I did not want mist pulled up from the DV's under acceleration and passing them over into the intake pipe. In both cases scientific measurements where required to see differences. The reason for this is in the tune, I have always been a believer of my car performing in all conditions, hence very few dyno glory runs and a lot of track accomplishments over variable conditions using the same tune.
Size is not as important I would go for the CM10 if thats what you have. I run that in my car when in race trim.
The two nozzles also work fine although pressure drops quite a bit and the mist is not the same. The boost is so hard and the pipes so small that it doesnt help with any atomization. Two nozzles where mostly started due to piggy backs not being able to supply enough fuel and cars where running to lean so it was a band aid patch for fueling. Since the backend flash ppl focus less on the meth needs of a car if good octane fuel is available and spray enough to keep the intake temperature lower.
Contrary to what was said earlier the 50/50 mix is flamable, there are videos on youtube from the famous hotrod335 showing this. I run 70/30 when I race but am not anal about exact mixes at all. The car is not that sensitive to the mix if the tune is good. I also just throw in tap water or a dash of valpre if the mix doesnt smell right.
Lastly and most important where you buy the meth from. I know Cleo in Natal went through a phase of pulling his hair out to get decent stuff. See if Protea Chemical stocks it down there and stick to that to give you consistency.:thumbs:
hoosain
New member
My point exactly george two nozzles running of one pump will cause a major decrease in pressure and hence spray pattern
I now use boiled tap water that's allowed to cool and then mixed with the meth
Boiled water gets rid of the calcium carbonate that is the scale you find on the kettle element
I now use boiled tap water that's allowed to cool and then mixed with the meth
Boiled water gets rid of the calcium carbonate that is the scale you find on the kettle element
Rommies
Active member
Guys meth got very interesting for me:
(Density = weight divided by volume)
Water is 1000kg per cubic meter
1l water = 1kg
Meth is 786.6kg per cubic meter
1l meth = 0.7866kg. (0.79kg)
So if I understand this right.....meth evaporates faster than water right? I think at 80 degree Celsius? So in essence it has a lower evaporation level than water.
So what I did wrong...2.5l water & 2.5l methanol does not give 50/50 mix. (Like Burgy mentioned earlier)
Lets say for arguments sake my bottle holds 5liter in total:
Would I need to mix 3l meth and 2l water
or 2.8l meth and 2.2l water to make it a 50/50 ratio mix?
Because I can't seem to work it out from here :bangdesk:
(Density = weight divided by volume)
Water is 1000kg per cubic meter
1l water = 1kg
Meth is 786.6kg per cubic meter
1l meth = 0.7866kg. (0.79kg)
So if I understand this right.....meth evaporates faster than water right? I think at 80 degree Celsius? So in essence it has a lower evaporation level than water.
So what I did wrong...2.5l water & 2.5l methanol does not give 50/50 mix. (Like Burgy mentioned earlier)
Lets say for arguments sake my bottle holds 5liter in total:
Would I need to mix 3l meth and 2l water
or 2.8l meth and 2.2l water to make it a 50/50 ratio mix?
Because I can't seem to work it out from here :bangdesk:
