How To R53 Drivetrain :: Devil's Own Water/Meth Install How-To!
6th Gear
Joined: Jul 2002
Posts: 3,446
Likes: 9
From: L.A ca
bringing this back form the dead to amkea note. if you have the meth come on too soon you're actually losing power down low. if running a higher concentration of meth when injected at 5psi lets say youre not going to be running a rich mixture and might be robbing you of power. 7-8 psi should be good starting point of these cars. my last car while i was running meth i started the charge at 12 psi... but max boost was 26... when i started it at 5psi thinking it would help i watched my afr's go rich.. i tried tuning it out but it didnt work out well. there are write-ups about mixtures and when is a good time for injection etc but man is it a lot of reading. either way i believe i will be going with the DEvils Own kit soon... i had cooling mist on my last car. so its hard to jump to the devil lol
Randy
M7 Tuning
2nd Gear
Joined: Oct 2009
Posts: 72
Likes: 0
From: Chicago
i believe this is a better starting point than 5 psi
Joined: Sep 2006
Posts: 8,773
Likes: 9
From: Holly Springs, NC
Yep - good points. I recently found a good local source for methanol. Now am running about 70% meth / 30% water, comes on around 7-8 psi and peaks at about 12-13 psi. Seems to work well - I only run it when it's warm out for cooling benefit. Haven't done a with vs. without dyno - but plan to do so in Feb.
6th Gear
Joined: Feb 2010
Posts: 2,836
Likes: 6
From: North Denver Colorado
I am really thinking about geting either a Snow or Devil's own meth kit now.
Has anybody ever tried the Nitro booster that Snow sells? Any bad effects from it?
Blimey, did you ever get to the dyno?
Has anybody ever tried the Nitro booster that Snow sells? Any bad effects from it?
Blimey, did you ever get to the dyno?
Did not see any gains....
Joined: Sep 2006
Posts: 8,773
Likes: 9
From: Holly Springs, NC
Got to the dyno... but one of my CV boots gave up the ghost before I could get my tune completed, so I never got to the with/without meth dyno test.... grrr.
1st Gear
Joined: Oct 2011
Posts: 28
Likes: 0
I am bumping this thread because I am about to install the AEM water meth kit on my R53. My question is that AEM recommends installing the nozzle before the TB but almost every install I have seen on the R53 locates the nozzle post TB/supercharger/intercooler in the intake horn connected to the intake manifold. So in this case when the IM is in extreme vacuum the possibility exists to crack the check valve and pull in w/m off boost.
Has anyone ever run into this problem?
Has anyone ever run into this problem?
1st Gear
Joined: Oct 2011
Posts: 28
Likes: 0
Yeah it seems like every install I've ever seen on the R53 puts the nozzle on the intake horn. The problem is that this location is after the throttle body. AEM only recommends their kit be installed before the throttle body. Apparently when the engine is at max vacuum it can crack open the check valve and pull fluid in. I am trying to find out what the cracking pressure of the check valve is but AEM tech support said it was '12-15psi' but was unsure what it was exactly.
I know the max vac I see on my car is -12.4psig
how would I check the crack pressure of a check valve?
I know the max vac I see on my car is -12.4psig
how would I check the crack pressure of a check valve?
6th Gear
Joined: Jul 2002
Posts: 3,446
Likes: 9
From: L.A ca
Yeah it seems like every install I've ever seen on the R53 puts the nozzle on the intake horn. The problem is that this location is after the throttle body. AEM only recommends their kit be installed before the throttle body. Apparently when the engine is at max vacuum it can crack open the check valve and pull fluid in. I am trying to find out what the cracking pressure of the check valve is but AEM tech support said it was '12-15psi' but was unsure what it was exactly.
I know the max vac I see on my car is -12.4psig
how would I check the crack pressure of a check valve?
I know the max vac I see on my car is -12.4psig
how would I check the crack pressure of a check valve?
Randy
M7 Tuning
[QUOTE=
I used the Headlight washer tank, with a Devil's Own self-sealing tank tap, which (SURPRISE!) fits the washer pump hole perfectly. No tank mods are necessary, if you're willing to disable your headlight washers [/QUOTE]
Bumping this.
did you have to replace the headlight washer reservoirs cap?
is the cap safe to use for meth ?
do methanol tanks need be vented cap?
I used the Headlight washer tank, with a Devil's Own self-sealing tank tap, which (SURPRISE!) fits the washer pump hole perfectly. No tank mods are necessary, if you're willing to disable your headlight washers [/QUOTE]
Bumping this.
did you have to replace the headlight washer reservoirs cap?
is the cap safe to use for meth ?
do methanol tanks need be vented cap?
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