How many of you guy's use meth?

[chavez408]

I would like to know how many of you use meth in your road racing car. I would say it is unsafe, because what if you run out during your lap times? I was looking into investing into a meth kit for my car since all we got down here is 91 oct.

[talonTSIDriver]

I run meth, and a lot of it for that matter too (Dual M7 Nozzles)

is it bad if it stops working?? YES!

However, most modern meth kits are very reliable.

Also with DSM-link, if the meth fails, I am sure I'll be seeing that CEL flashing on a LOT! Really though, its no different that lets say your oil pump failing or water pump or coolant leak. ANYTHING can break that will cause problems, what’s one more thing?

And running low, easy solution, fill it up after every session.

[chavez408]

Cool man what kind of meth do you use? Do you get it off a vendor or like walmart? I see like at low as $1.99 a gallon at walmart. But I believe it is 20/80

[BoostedTalonTS]

I run a 50/50 mix of distilled water & meth... As previously mentioned, the majority of the complete kits out there are pretty safe.
With the addition of a float level switch (let you know when the tank is empty) and a clogged nozzle 'sensor' that can also be wired up to turn on an indicator light, the risk(s) are minimized.
Overall impression: I can do things with 91 octane + Meth injection that I normally couldn't even come close to with just 91 octane.
I'm currently running an M5 nozzle (single stage) setup that is set to activate automatically at anything over 9psi.

[chavez408]

Eben, you must teach me haha
What kit are you running?

[talonTSIDriver]

You can do a DYI kit for around $200-250, however I'd suggest going with the alcoholinjectionsystems.com kits. I've dealt with them before and they seem very knowledgeable and will set you up with a kit that matches your HP and engine setup.

I run Meth that I purchase through Beyond Redline in Green Bay Wi. $5 a gallon

Pump gas +meth is basically like running Race gas, accept you only use meth when you’re on the throttle.

Also when you run a mix of part water part meth, you can not inject as much as if you were to run straight meth. Water will bog the engine if to much is injected. With meth, you'll just have to pull more fuel out (via DSM-link or SAFC)

[BoostedTalonTS]

Originally Posted by chavez408

Eben, you must teach me haha
What kit are you running?

No prob man... at the BBQ at the Stinson beach run!

Not a complete kit per say... I got my major components from CoolingMist. All in all, it was a good experience, I just used my own sources for the rest of the "kit"... It's basically a single stage, single nozzle setup:


A 100psi pump, solenoid, lines, tank, nozzle, filter, switches (Hobbs -OR DSMLink Reed & float), wiring, LEDs, & relays.

[chavez408]

Where do you get your 50/50 mixture from? Autozone?

[cioc]

Anyone have any experience with AEM's meth kit? I've been toying with this idea as well. Plus the AEM comes with a 1Gallon tank.

RRE's 4G Eclipse AEM Water - Alcohol Injection Kit

[->PrOjEcTGS<-]

Washer fluid.

[chavez408]

I hear not to get nothing but snow performance's kit.

[talonTSIDriver]

Originally Posted by chavez408

I hear not to get nothing but snow performance's kit.

Many of the kits out there all use the same pumps and parts.

The washer fluid stuff works ok as long as your running a small single nozzle. If you plan on running a larger nozzle, you'll need to go with straight meth or alky. More engine tuning is required when spraying more alky/meth into your engine.

Also since this is in the auto-X section, it may be of some interested to some. SCCA only allows H20 to be injected, meth or alky is not allowed (at least in the stock, SP, STX, and SM classes)

[chavez408]

Really? I am going to check our rules for our road racing tracks.

[stealthTT]

I've run methanol/water injection on the street for a few years now. As someone else mentioned, performance-wise it's like running race gas, but only when you need it. The rest of the time you're running on cheaper(?) pump gas.

If you use methanol make sure your pump and other seals are methanol compatible. Normal rubber and plastics are not methanol safe. EPDM is the commonly available material used for the seals and pump.

NASA allows the use of water/alky injection (in HPDE, Time Trial, and some other groups) as long as the fluid does not burn clear. Methanol burns clear. So you won't be able to use straight methanol. A 50/50 mix with water will suffice. That's what I run on the street. You lose some performance, but it's safer to handle.

I like the kits and controllers sold by Labonte Motorsports. They used to supply Snow with their progressive controllers. I've also known Dan Labonte for years (over the internet) as he owns a 3000GT.

Labonte Motorsports Meth Injection
Labonte Motorsports high performance injection controlling and monitoring systems

[1gDSM4g63]

Originally Posted by chavez408

I would like to know how many of you use meth in your road racing car. I would say it is unsafe, because what if you run out during your lap times? I was looking into investing into a meth kit for my car since all we got down here is 91 oct.

The are low level indicator, bigger tanks to mount in the trunk and if all come to the worst just lower your boost or go easy on the car.

[chavez408]

Ill look into getting a larger tank, then.

[talonTSIDriver]

I've been doing some research into a good fail-safe system for meth injection and I came up with this. maybe someone already thought this up, but oh well:

Must be using DSM-Link

Using this: BBK-10 - Boost Bypass Kit

If you setup the NOS parameters to:

Activate above: 0rpm
but below: 10000rpm
TPS above: 0%
Speed above: 0mph
knock Below: 5deg

and now hook up the switched ground wire off the ECU to a standard bosch relay. Now hookup the above MBC bypass solenoid so that it has power all the time until the ecu sees over 5deg of knock in which it would turn off the relay, therefore turning off the bypass solenoid.

If hooked up right, this should lower you boost anytime the engine see's X amount of knock.

if this is hard to follow, maybe i can draw something up.

[eclipsegsx1736]

Originally Posted by talonTSIDriver

I've been doing some research into a good fail-safe system for meth injection and I came up with this. maybe someone already thought this up, but oh well:

Must be using DSM-Link

Using this: BBK-10 - Boost Bypass Kit

If you setup the NOS parameters to:

Activate above: 0rpm
but below: 10000rpm
TPS above: 0%
Speed above: 0mph
knock Below: 5deg

and now hook up the switched ground wire off the ECU to a standard bosch relay. Now hookup the above MBC bypass solenoid so that it has power all the time until the ecu sees over 5deg of knock in which it would turn off the relay, therefore turning off the bypass solenoid.

If hooked up right, this should lower you boost anytime the engine see's X amount of knock.

if this is hard to follow, maybe i can draw something up.

This is a great idea, and the coolest part is we already have this solenoid and don't even need to buy another one!

Dual Stage Boost Controller using FPS

HOWEVER.. I haven't tested this yet. I'll be doing it very soon for my setup. Using the above link, there are 2 possible issues that stand out to me, I wanted to see what you thought.
1.) The stock FPS.. can it really take boost? Will it leak? Let some air escape thru itself even when it's in the closed position?
2.) Let's say you're at 25 psi, the wastegate is semi-closed due to being regulated by the MBC. Knock occurs, and the FPS sends a direct path of pressurized air to the wategate, bypassing the MBC. Will the boost ACTUALLY drop and will it drop quickly enough? I haven't tried flipping to wastegate pressure from MBC pressure while under full boost; anyone else tried this? I'm wondering if the WG just won't be able to expell enough exhaust air at such a high boost and airflow level to actually bring the boost all the way back down. I'll try when I can and post results.

More to the OP: I'm running meth injection and have tested it extensively on high speed backroads in the SoCal area and it's worked great. I had it up to about 28 psi on 91 octane for about 60 miles of straight high speed, high throttle canyon runs and it worked flawlessly. Never any knock or anything. I haven't trusted the car enough to go back to Willow Springs with it yet, but I think she's ready for it again and I'm looking forward to this summer.

I have another project in order, going FMIC-less and using only meth (maybe water mix too). If this works (which it will, since my current FMIC is extremely undersized, and the only reason I'm able to make any power on it at all is due almost completely to the meth injection), it will greatly reduce spoolup, allow more air to the radiator, and reduce FMIC related heatsoak. I'll have an IAT sensor on the intake manifold, and plenty of different sized nozzles to keep everything cool, including a very small one for light cruising to prevent heatsoak.