[joeybutts]

Today I came across a fellow e90 enthusiast in backed up traffic and we chatted a bit and then had some fun on the thruway. During our chat it seemed I should easily have the upper hand in our romp. Well, I have to say it was pretty even..... and then I noticed that my blinkers weren't coming on as boost built, or I thought boost was building. Needless to say I was pretty disappointed and a bit embarrassed.

So tonight after the temps had dropped down about 15* outside, I took the car back out to see if it was still doing it. Low and behold, just like I've always known the car. WOT and lights were on and wheelspin a plenty through 2nd and 3rd.

Maybe my meth integration ignorance is showing, but I would have thought that the hotter it is, the more the meth would kick in to cool down the air temps.

Also, the car was tuned out on the west coast and it is now on the east coast; San Jose to Hampton Roads, VA. Not sure if weather/environment would have that much effect.

Thanks for any help and insight into exactly what I am missing.

[firemanjust1]

Possible vapor lock trunk mount or ww fed ? I used to have trouble with meth flow when temps were over 90 degrees, if I didnt use it when I first took it out for a romp I would have to purge the system until full flow,

[joeybutts]

Thanks!!

Misery loves company, so kind of glad to hear that others have had the same issue.

So does boost drop as heat rises? I would think opposite. And the reason I question is I thought meth flow is dependent on boost.

[ajsalida]

You haven't provided enough info. What meth kit are you running, and how is it controlled? What tune? What settings?

Eg JB4 G5 BMS meth kit is not progressive. It has a boost trigger but once meth is flowing it is at a constant rate independent of boost. Aquamist HFS4 is progressive and can be programmed to push more meth with more boost, etc. Some other flash tuned one-off who knows what is up.

You could have an intermittent issue with meth flow, or other things going on. Logs would help.

edit: also the JB4 + BMS kit has a % throttle trigger, meth will not flow unless both that and boost trigger are reached. If your foot was not far enough down on the gas pedal, and/or there was some other heat-related boost restriction or safety mechanism going on, meth would not flow. For example if you have a JB4 you could have been kicked to map 4 for some reason, you'd never get boost or meth there. Restart your car under cooler conditions, you're fine.

[joeybutts]

Thanks! I'll get all that info today. Not 100% on all the specifics. I appreciate your guy's time.

Will be back with info.

[joeybutts]

- Rob Beck Turbos
- Vishnu PWM Methanol System
- Vishnu Procede 2.5
- AR Resonated *** Downpipes
- Upgraded Clutchmasters Single Mass flywheel and Clutch (new)
- Stett Charge pipe, Meth bungs, diverter valves
- Helix Intercooler
- Dual Cone Air Intakes
- Clutch Delay Valve

[Jeff@TopGearSolutions]

If you are still storing methanol in your windshield washer fluid tank, please please please take it out and set up a dedicated trunk meth tank. All of the companies who originally sold the WW kits no longer sell them because of the fire hazard and dozens and dozens of car fires.

As far as methanol not spraying, could be vapor lock, another problem with the WW tank storage.

[ajsalida]

Oh man. You'll need to get a Vishnu person to chime in. Vishnu dropped out of the N54 scene years ago so all of that is fairly old tech. Esp the WW reservoir, I agree get rid of that ASAP.

[joeybutts]

Well shit.....should I begin moving over to a different format/maker? what would you recommend for a trunk mount swap?

What should I do with the Vishnu product?

Thanks for the heads up on the meth tank. I was always worried about spilling it when refilling but never thought about it being mounted elsewhere.

[Levanime]

I used bms one, pretty happy with it

[joeybutts]

Thanks for the recommendation. I've been looking around a bit, and have noticed that some of the kits put EVERYTHING in the trunk. EVERYTHING in my meth system is in the engine compartment.

Should I look to relocate everything or just the tank?

Also, should I look to get rid of the vishnu programmer and go with a JB4? Will I need to take the car to a tuner?

Thanks for all your help gang!

[Jeff@TopGearSolutions]

Originally Posted by joeybutts

Well shit.....should I begin moving over to a different format/maker? what would you recommend for a trunk mount swap?

What should I do with the Vishnu product?

Thanks for the heads up on the meth tank. I was always worried about spilling it when refilling but never thought about it being mounted elsewhere.

All you need is the tank and new lines. Vishnu kit is aquamist so it's easiest to just get an aquamist line and tank.

Although their tank can be expensive. So you can get a universal tank and just tap it with the aquamist lines.

Their lines are unique so you'll need those (about 15 feet at least) and a tank tap fitting. Some universal tanks offered are 3 quart, 4 quart or even larger ones with baffles. It really depends on what you want. Anything in the trunk is better then storing it in the WW reservoir.

[joeybutts]

Huge help, thanks Jeff.

What about the JB4? Should I pick one up and lose the Vishnu?

[Jeff@TopGearSolutions]

Originally Posted by joeybutts

Huge help, thanks Jeff.

What about the JB4? Should I pick one up and lose the Vishnu?

I don't see the need for you to do that. The Vishnu will integrate better with your current kit in my opinion.

[FEDE/E92]

I wouldn't worry about relocating unless your running a very high % of methanol. Must WE fluid bought in stores is said to be close to 50-50 mix or close to that and it's perfectly fine. If you are running more than that I would go to a rear set up.

[joeybutts]

Thanks again Jeff.

I run a 70/30 mix.....

[Jeff@TopGearSolutions]

Originally Posted by FEDE/E92

I wouldn't worry about relocating unless your running a very high % of methanol. Must WE fluid bought in stores is said to be close to 50-50 mix or close to that and it's perfectly fine. If you are running more than that I would go to a rear set up.

Sorry but I kindly disagree.

Plenty of 50/50 mix have caught on fires. I know about them personally.

WW fluid in stores on average is 25-35%. Anything over 35% is hard to find and usually for climates that see 0F or less often, like the deep north in Canada.

Originally Posted by joeybutts

Thanks again Jeff.

I run a 70/30 mix.....

I'd switch to 60-70% water or more and not run the meth. That's how serious of a problem it can be.

For the guys in denial about it, there has been plenty of guys that had no signs or symptoms of a potential issue. Then one day.... boom out of nowhere.

[FEDE/E92]

I understand why would you disagree, but the problem with WW meth just was the the cap would become lose open up and spill the mix all over the hot turbos catching on fire. Change the cap and you will have no issue. I run 40/60 with a different cap in the bottle no problem. He is running a way higher mix of methanol than I am.

[ajsalida]

Originally Posted by FEDE/E92

I understand why would you disagree, but the problem with WW meth just was the the cap would become lose open up and spill the mix all over the hot turbos catching on fire. Change the cap and you will have no issue. I run 40/60 with a different cap in the bottle no problem. He is running a way higher mix of methanol than I am.

I think some may have happened as you describe but others were due to cracked filler neck or tank, meth would pool on the pan under the engine then suddenly go boom. Pretty much nobody runs WW tank any more on these cars, you are just asking for trouble with hot turbos sitting right next to it.

The other problem is you just cannot get to the WW tank easily to inspect and then it is nothing like a fuel cell as far as impact safety, basically a milk carton. Get hit on the left front fender with a tank full of meth, hope you have a fire extinguisher.

[FEDE/E92]

I can see that, I forgot about that. i actuallly drilled an opening If that was ever to happend.