Do any of you "meth users" have a cleaning schedule for your injection system jets? Another words, do you take them out on a routine basis and clean them?
The reason I ask, is that I have a 70-30 meth/water system on my little blown miata, and I suddenly started having a bad detonation problem. After some checking, I found the jet was 100% blocked. I REALLY can't afford for that to happen to the Vette
Was it the water in the mix that caused it? Has me just a LITTLE concerned

 

 

Blocked with what? Shouldn't need cleaning.

 

Guess you never had your ww nozzles get plugged.
I never had my meth plugged but I have found build up around the nozzle and cleaned it up.
I would guess if you use a water mix this can exaggerate the problem to the extent of plugging the nozzle.

 

I was actually HOPING it was the "mix" portion that caused the problem. There was a "greenish" residue around the hole that I assumed was from the washer water part of the mix. I hope I won't have the issue with the 100% METH, but it definitely made me think. It could be a disaster if the jets stop up on a "meth dependant" tune (like mine)
I also wanted to give a heads up to anyone running 50/50 mix to check their jets periodically.

 

run 100% meth here...

 

The good kits have flow sensors don't they?

Were all just a bad tank of gas away from a bad day anyway.

BTW, I've owned both a turbo'd and SC miata.

 

Good kits have filters so you shouldnt have to clean your nozzles.



Its not the fluid causing the clog.. its the trash floating in the tank. Install a good filter and your problems are no more.

Same with fuel injection. Why do you think the put a fuel filter "after" the fuel pump.. so your injector screens dont get clogged up with goop.

 

glad you caught it before you "blow torched" it!

 

i'd throw them in an ultrasonic cleaner overnight. That is the best way i could think to clean out those little jets.

 

This was on my little blown miata DD, not the vette.

Julio

It DOES have a filter on the jets; and there was NO "particles at all in it, so I don't think it was trash. The jet had a greenish residue on the face of the jet, which I thought might be some sort of chemical reaction from the water in the mix.
Not sure what it was, but it was completely clogged

 

Is the jet brass?

Verdigris?

 

Yeah, I caught it was the Miata. So you have a different screen name in the Miata forum? Something say like......micro torch?

 

You are on a roll tonight Bret
What about "mighty mouse"???

Bruce;

I'm not quite sure what the jet is made of. It's an AIS kit. I emailed them and got no response. It does have a look that I have seen before on old holley carb jets that had been exposed to moisture

 

We stopped using brass nozzles over two years ago. Email me a picture of your nozzle. Our new nozzles are nickle plated. Sounds like your brass nozzle had a reaction to the fluid you were running, forming a little corrosion which is what you saw and why it turned green. Its not common as i have friends who are still running the old style nozzles for over four years which still look fine.

I'd be more then happy to send you a new nickle plated nozzle for free to replace this nozzle. You need to remove and inspect the nozzles at least every 6 months.

 

Awww Shucks!!!! I was looking for a good reason to drill my nozzles bigger...

 

See the problem with the filter on the jet is its surface area. Your looking at a surface area the size of your pinky nail.

Think of it this way, your fuel injectors have screens on them. The MFG still puts a fuel filter after the pump for a reason.

As to the crud buildup.. probably has to do with the fluid your using. maybe its a reaction to the type of water being used. Tap vs Distilled as there is a mineral content in tap water. I also dont know what material the screen is made off, the diffusser, etc in that jet. Not mine.

Good luck

 

The MFG puts fuel filters after the fuel pump for several reasons. Fuel pumps have a million more times of hours and service on them then does a water methanol injection pump which is only turned on generally when in boost.

Theirs a lot more contaminants in the fuel system then you have with a water methanol injection system. Contaminants in the gasoline as its being transported from tank to tank, to metal fuel tanks on the vehicle rusting, to the internal wear of the fuel pumps internal metal gears, etc.

The clearances inside a fuel injector are so exact it wouldn't take much to effect it which is why we have filters in the gas tank and after the pump. All of our water methanol injection system tanks are made from plastic so this eliminates the tank from rusting and causing debris and contaminants. When you start off with a clean tank. The fluid your using from that is pretty damn clean. You could certainly run a patch test on water and methanol and find some stuff under a microscope. But nothing thats not going to clog the system.

We use diaphragm pumps so there's no metal to metal wear internally. The only time I have experienced a nozzle being clogged was due to deposits forming on the tip of the nozzle when using tap water or corrosion. This is why we use nickle plated nozzles and not brass as do some competitors and recommend using distilled water and not tap water.

Hope this helps explain things better. Let me know if you have any other questions or how I can help.

Rodney

 

Julio

I'm using pure Meth combined with Peak (I believe) washer fluid, so no tap water.

Rodney

I will try and send you a photo of the jet

 

Maybe the peak caused the reaction.

I have never seen this issue, but again I run 100% methanol and the nozzle your using i've never used.

Contact Rodney at AIS, he can help you.