uglybastard
Autocross Champion
NOS
6
Jay's 13' Wolfsburg Track Car Build
- Thread starter jay745
- Start date
uglybastard
Autocross Champion
The car gods have spoken. NOS.Currently waiting on a tow truck home lol. This is what I get for saying I was bored. Started misfiring and blowing white smoke, thinking an injector is stuck open
riceburner
Autocross Champion
oh noes! well now you know what to upgrade next?
jay745
What Would Glenn Danzig Do
Eh upgraded injectors require a custom tune. Just bought 4 Bosch injectors. First time this things ever been on a truck
Got home and started it to limp it in the garage and it wasn't misfiring or blowing smoke. Typical.
riceburner
Autocross Champion
you sure it wasn't a meth malfunction?
uglybastard
Autocross Champion
Meth: not even once
jay745
What Would Glenn Danzig Do
Yeah, meth doesn't cause those symptoms. Seen this dozens of times on vws
jay745
What Would Glenn Danzig Do
@KollinWithaK send n00dz with the injectors I ordered from you. Thx
I see and hear all your complaints/frustrations which are common and there is scant info on how to properly install/design and dial in a water meth system. However when done right it works very well and other than checking for leaks and filling tank, pretty much problem free.
I have used meth on 4 cars since 2001 on number of cars (2001 twin turbo Audi, 2004 supercharged GTO, built MKV GTI and a supercharged 2000 Corvette. Only once I had contaminated mix container that I did not clean out before using. It was new and I should have washed it. There was either powder or residue of something and it plugged everything up. Only time I have had that happen. When using only filtered but not distilled water I found that over a long period of time I would get calcium build up. Once I switched to actual distilled water I have not had that problem.
Note about Methanol - it is highly volatile (gets into the air quickly) and has no smell and is toxic like most fuels. If I mount a tank in the shared air space of the cabin ( trunk or back of hatchback) I always vent tank to the outside. Because it has no smell you can be breathing it in and not know it.
On my MKV GTI. I ran 91 octane in tank and water meth. And with this I was able to run a 100octane tune daily for the 4 years I had the car in that config, with zero timing being pulled. That was a Snow system with 2-225ml nozzles and 50/50 mix.
The approach I take to dialing in is to look at timing being pulled (log a 4th pull). And start adding methanol at the rpms needed until all are zero. You only want just enough so you have to creep up on it using timing as your gauge. Too much and zero pull but you are quenching the ignition in the cylinder and losing power.
I have a number of tips on how to setup a system successfully, avoid all the issues mentioned which are common complaints and would be happy to help anyone interested. Just pm me
jay745
What Would Glenn Danzig Do
I never really did play with different nozzle sizes when I installed it but I have a strong feeling I wasn't doing it's justice. Had a 175ml nozzle in the throttle body pipe, and 75 in throttle body spacer. ProMeth makes it a little confusing because they measure different than snow, but this should be equal to a 225ml and 175ml (I hope)
I did plenty of research on routing the lines and installing solenoids in the right location which I attribute to why it's been fairly hassle free.
I did plenty of research on routing the lines and installing solenoids in the right location which I attribute to why it's been fairly hassle free.
riceburner
Autocross Champion
great tips! Thanks dude. Maybe next time i feel like blowing $1000 i'll revisit this lol
- I used (2) 225ml jets, they are rated at that flow (4.0 gal per hour) based on 100psi pump pressure.
- One nozzle in throttle body plate
- One nozzle just after intercooler
- The Snow system I used had a progressive controller (adjusts voltage to pump) and it used a 300psi pump (full voltage)
- I did not run an APR tune but something very similar and I used the 100 octane map with 91 octane in the gas tank.
- 50/50 mix of distilled water and VP M1 (you can also adjust mix if needed to achieve zero knock goal.
- I used checkvalve or solenoid right at each nozzle
- Solenoid right after tank - to prevent gravity flow leaks
- Ideally use -AN if using push to connect only wide loops to change direction of tubing (tight turns will cause leaks at fittings)
- Push to connect - best to use tubing cutter to get sharp 90 degree cuts or fresh razor blade
- Having one nozzle placed after throttle body is crucial if you are trying to run 100oct map with 91 in the tank.
If you are running the APR 100oct map it is quite aggressive as well and you would do well to start out where I did.
Looking at the ProMeth flow charts you would want something close to 200-225ml of flow at 100 psi. Looking at your nozzle selection and if I read their charts correctly you are well under what you need. I am assuming the ProMeth system uses the same 300 psi pump most systems use today.
All the above is trying to get the most out of water meth so if you are not trying to do that your nozzle selection would be quite different if you are running 91 or 93 map. You can use w/m just to keep things cool during summer and avoid usual power loss in hot weather etc. And you would not need a throttle body plate and you might not need more than one nozzle.
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jay745
What Would Glenn Danzig Do
Thanks for the info, Ill probably order some larger nozzles to play with and run some logs soon. I run a 93 map, with 93 pump gas using 50/50 VP M1. It's a snow system, but their nozzles are back ordered so I went with ProMeth. Although I finally just talked to them and they're on back order too so that sucks.