Georgee6086

The problem with m157 and meth is the nozzel location. Only way to get a good spot to spray is to remove the composite manifold. Spraying through the IC isn't the greatest. Water/meth hits the heat soaked IC and steam is created taking up air space. Meth is also corrosive to the aluminum. I tapped into the windshield wiper resivoir and mounted the pump to the splash shield under the bumper. Switch is on the pedal and only triggers at WOT. Like I said in previous post. No benefit realized.

Pumpkinate

Are you going to put the nozzle in one of the charge air pipes?

Will you retune for this modification?

Fairbird

yes and yes

Amg63-

just curious what were your 1/4 times with your new stage 2 EC tune?

Pumpkinate

I'll be interested to know what you think of it when you get it running.

I wonder how water-meth injection would compare to a Killer Chiller in effectiveness? Lets say a water-meth set is $500 and a KC is $700. The KC would it seems get the intake temperatures lower but doesn't have any octane boosting effect.

E63 Tony

Does the weistec kit come with stainless steel braided line? Or instructions?

Georgee6086

I didn't get their new (more aggressive) tune . I'm trying to figure out how to improve my 60ft. I don't think these cars need more power.

Amg63-

more power probably won't improve the 60ft because of the TCU torque limitations but it will still help get a better ET and higher trap speeds.

Ralcbah

Will give this kit a go. Will have it installed in the next few weeks, once delivered. Stay tuned.

alexdou111

Hi guys,

I want to get my IAT times much more in check - can anybody pls help what meth kit to buy? I see you have linked an AEM kit - I have so little idea what I need to pay attention to, and some guidance and help would be greatly appreciated!

Weistec is a choice but as always their price is in the starts (their quality not always is ...) so I would prefer a different solution IF someone knows what works?

Thank you!!!

alexdou111

Also, I hate plastic lines so No.1 reason I am not so sure about the Weistec kit... so to build a kit, will need measurements
from tank to pump inlet
pump to filter
filter to T fitting
T to nozzle 1 and T to nozzle 2

The thing is those cannot be determined until parts are mounted
OR did anyone here did that yet or has an idea on measurements?

I drive a 2012 CLS - I suppose should not be all too different to a E-Class wth the tank in the trunk where the spare wheel is.

thank you!!

Cifdig

Going to make a thread on my water meth install on my m157 motor. I have extensive knowledge in this area as I build highboosted vw/Audi. On my vw Jetta I'm running a gt2876r I'm running water meth pre turbo and post intercooler. The best place to instal water meth on the m157 is on the back side of the plastic manifold right before the throttle body which is tan easy task. You need to remove the intercooler intake system etc. another option is to spray pre turbo which will be the fastest easiest way. The turbochargers will become more efficient and ambient temps will go down. Not dramatically but for those worried about heat soak you may be happy. There's really no power to be had but you will see a slight tq increase. If the ecu is pulling timing due to heat the the watermeth kit will have a good affect on the motor. Making it behave as if you started the car on a chilled day

e65

I have a dual nozzle setup. I added 4 miles per hour to my trap simply by increasing the flow of methanol without any tuning adjustment. I was told not to mess with the settings.

All runs ats 3700+ DA
94 pump had, 93 tune, meth injection: trap 134mph
94 pump gas, 100 octane tune, meth injection: trap 130mph
94 pump gas50L + 10L methanol in gas tank: 133mph -134mph
Set meth injection to start lower boost and peak lower boost: 136.2 @ 10.57
Increase meth injection even more: car shifted early from 3rd gear to 4th gear due to power cut either from slipping tires transmission vs other, power restored and downshifted into third gear again then up shifted into 4th. I also had power cutting out in first and second gears due oem tire traction. Car cut power at least three times during the Run. I felt like this was a terrible run where I lost half a second... i ran 10.95 at 137.45.

There is a lot of power in methanol. Catless smell gone completely by 10L mixed with 50L of gasoline.

I pretty much matched my trap speed with 100 octane using 94 octane by adding methanol into the gas tank and increasing the methanol injection in fact I may have surpassed it when you consider how bad my last run was when the power cutting out over and over again and transmission upshifting then downshifting in the middle of the Run. I had intake temps 64 celcius/ 147F at idle due to hot weather and long lineups. My methanol line blew apart I'm going to have to get a compression hose clamp.

KLR CLS

Good info. Where are your nozzles placed? Pre intercooler or pre and post?

e63ttupgrade

My car cut when its shift the second gear and third cut every time ! How you race eps on off sport maje racing start ? Sport + sport ? Dyno mode ?

chiromikey

There's too much info missing for me to conclude anything yet. For example, different 60ft times can easily account for the mph difference.

e65

133 mph trap was with 1.85 60 foot. 1/8 trap 103mph
136 mph trap (increased meth injection) was 1.86 60 foot. 1/8 trap109mph
137.45mph trap was 1.92 60 foot. 1/8 trap 105.7mph (sloppy run, increased meth injection even more)

I could probably keep increasing methanol more and more still. No change to the tune just dumping more methanol injection. The power gain with methanol is real. MCT sucks for 1/4 runs. Anybody that is using methanol increase the methanol injection by having it start at lower boost and set max flow at lower boost. I am sure you will not be disappointed.

e65

Race start with sport handling mode. I tried with traction off. Hit rev limiter badly in 1st gear and transmission disengaged completely. I just rolled at 40 miles per hour like that all the way to the end of the track I had to turn the car off and then back on in order to get the transmission to engage again. Maybe some kind of limp mode but I did not want to try that experiment again.

I am losing power which feels like traction control power cut in 1st 2nd 3rd even 4th gear I don't think it's the tires I suspect it could be the clutches even though my transmission is upgraded. Or maybe it's some software problem. Or maybe fuel starvation even though I have extra fuel pumps. It is preventing me from reaching 140 miles per hour trap. When the power Cuts I lose the Boost and this happens 2 or 3 times.

e65

Both nozzles are in the intake manifold. The common portion before it splits up into the two Banks. Intercoolers are top mount so I imagine this post intercooler in any case both of them are in the same spot and it's pre iat sensor because the intake temperature drops when methanol injection starts

e63ttupgrade

My car cut 2-3 time all time right after the shift and i have ams clutch turbo upgrade ams cooling watermeth and 94 octane tunei made 1.82 60ft on drag radial 305/35/18 its dont spin at all but i made less than 100 mph on the 1/8 and my max is 128mph i try without meth one time and made 124 mph i think the motor tune and tcu tune is not perfect ... i made 11.28 128mph on street tire on stage 2 91 octane tune before turbo upgrade tcu tune watermeth and ams cooling set up...

e65

I don't think your upgraded turbos are producing expected power. The 2nd to 3rd Shift cut it's hard to know. Does the cut happen right before or right after the shift?

it could be a bunch of things. Software, clutches, spark plugs even. Hi intake temperature is probably unlikely, probably not pre-ignition. I'm in a similar both myself and not sure what to do.

e63ttupgrade

it cut right after the shift ... in the street when i push from 50kmh i never had problem but from 0 at the strip i always cut ... i going to log some run maybe this week if my friend with the thing to see the log have the time ...

chiromikey

This seems to be a pretty common problem with all the turbo upgrade cars not being able to drag race and only roll race...

e65

have a video of your rpm gauge. If the clutch clips it should show. I think ams has more than 1 clutch option which one do u have. I think their clutch should hold the power but check anyway with rpm vid.

e63ttupgrade

its like i have too much fuel ...why you upgrade your fuel pump and which pump you put ?... i maybe going to put a custom tune on my tune i know one men tuning benz and he can go directly at the drag strip to ajust the tune