So I’m running the Alky meth kit on my E force Stingray, I run 100% meth and it’s been on over 1 1/2 years and always been functioning perfect. I took the car on a long drive last weekend and it’s been hot out. I tested the Alky system with the test button on the start of the ride and got the green LED right away. So the first hour was on the highway moving at like 70mph. The next hour plus was in stop and go slow moving traffic in small towns. After that I was just about to get back on the expressway and had a TrackHawk line up with me, being a little ocd I tested the meth again and the LED would only go red and not green even holding down for some time. So I didn’t run the Trackhawk and drove normal at highway speeds for another half hour. I hit the Alky meth test button again and the LED went green instantly. It’s been good since. So I called Alky control and spoke to Julio. He right away said my meth was ”boiling” because it was so hot out and I was driving slow for a long time. He said the C7 has terrible engine ventilation which I was aware of. He said the meth will boil at 160* I googled and saw meth boils at 148*. So small air bubbles would vapor lock the meth pump. Anyway Julio said all the new C7 Alky meth kits come with an insulator blanket for the washer fluid meth reservoir. I’ll be ordering this but was curious if anyone else ran into this issue??

 

Yes. I’ve gone thru all of this and drove me crazy!! I’m ocd too. My meth always worked flawlessly until it got over 80’ out. I did insulation kit with no help. Rerouted lines and did insulation on them also. No luck.did heat insulation on frame member wall that’s between headers and tank. That gets hot there. Maybe got bit better? I finally cut out an area in mud flap directly in front of pump and lined with mesh. I think this helped quite a bit. That pump was getting warm before this. Check the temps of your washer tank. At one time mine were up over 160’. No stay around 100’. You can text or call me if you like. 330 974 8606.gary

 

Love to see a picture of how you are venting the meth pump area

 

Yes, I believe I understand what you did with the mudflap, but a pic would be great!

 

 

Here’s a pic,I also did numerous other things too however in anything 80’ and over system still wants to lose pressure and I have to hit test button until full pressure builds(green light) then ok for a run. But will need pressure built in a short while. If temps are cooler….all works fine. I have no idea what could be getting hot to boil the meth(if in fact this is what’s happening. Very frustrating all the time I’ve spent on this issue. Hard to believe everyone isn’t having same issue.Basically Julio believes if washer tank is moved elsewhere it will cure it.I don’t believe this at all because I’ve dropped a thermometer in tank several inches and temps now never exceed 117’. If someone figures it out I’ll buy em dinner!!

 

So I already had a pretty good tear in the liner from oversized tires on the track right in that same area you put the mesh. I simply grabbed a blade and made a similar triangle hole in the liner for now, drove down to palm dessert to cosco to get some steaks, and then back up the mountain. With out going into any more detail, I held pressure the whole time, right back to my house!! To me, this seemed to help over and above ALL the cooling things I've done so far, including Julio's fixes...
Thanks for the TIP!!!

 

I’m assuming you’ll have to cut through the fender liner as well as the splash guard. How did you attach the screen to the inside of the splash guard, urathane?

 

I have the Alky system (twin nozzles) and over the last few years only had a
2-3 times I can remember it sounded like it didn’t kick on when I floored it on the street. Those time after sitting in a parking lot for an hour waiting for wife to get done shopping. My test button is under dash and I have no idea what it even looks like. I have t done any mods for the pump or lines. If that lower fender liner cut out works I would want to know how that would work as the pump is higher up and more towards the left. Maybe just hear out in any area around the pump ? I go through 5 gallons of meth per month just driving on the street 😉

 

Yuuuupppp.... The joys of meth injection.

 

Ok, so I vented in the splash guard as well. Thanks Gary

 

Easier to check for leaks with those vents too

 

Stupid question but can you hit the test button on the Alky while the car is running and it won’t throw any engine codes or stall the car under light driving or idle?

 

Shouldn't throw any codes. It can stall the car if you have big nozzles and test it for a long time at idle.

 

I live in west Texas and don’t think I’ve had heating issues with meth pump but this seems like a good idea. Im going to try it

 

Yea just give it some gas when you do it, or like others have said it will flood the car.

 

thanks, I didn’t know this! I always wonder how to get the pump re-primed after the car has been sitting awhile

 

I had this issue with my f-body. Julio was good trouble shooting it with me. He determined that the meth was boiling causing it not to spray. Nothing really I could do besides relocate the pump and tank. I would make it a habit to test it before each outing. Went with ProMeth on the Vette currently getting installed. Hopefully will work better then the Alky kit.

 

Reviving an old thread as I'm having this issue as well. It drove me nuts until I made the conection of " This only happens after I've been driving for more than 35- 40 minutes in traffic ". The system works great ..... then it doesn't when things heated up.
I dont want to cut up my wheel well to create a vent. Any other suggestions ?
- I thought of installing a small but powerfull fan & pull in cold air blowing it on the pump to keep it cool.
- possibly mixing Meth with H2O & effectively raise the boiling point (probably need to re-tune so not a good option). Maybe I can get away with 20- 25% H2O ??
Can anybody comment on this option ?

I can say this: For me this is not as big a problem as it sounds as it takes about 40 minutes of driving in the SO. Fl. heat (stop & go). Most of my fun time is within that time frame & I am not noticing the issue. I would still like to solve the problem. So. Florida is hot alllll year long.

 

I'm having the same problem, but even when it is cool out. Bled the system 6 times before I found the air pocket with 52 oz container and it finally "burped". Fairly new install.
Worked good all weekend with 3 or 4 pulls in 60-70 degree weather. Sat a week, then the same thing. Bled it again 4 or 5 times and went to a gallon container to bleed it into. Just drove it again and the red/green light turns red AFTER it tests green when I primed it. I have used and installed 15-20 of these kits on GN TTA GNX and (2) 02 Trans Ams over the last 10 years and never had this problem except for an OLD pump failure that blew us a GN last year before I could get out of the throttle...Maybe 5-7 seconds with a dual nozzle kit.
Now, this is my first NON gravity fed unit in the C7 Z06 and I can not get it work work reliably. Mine is NOT head related, at this point, so any help would be appreciated.