So meth injection is a mix of water methanol and fuel? But the methanol is injected depending on boost to keep engine cooler and cleaner, thus maybe being able to run s higher boost over time as rpm increases and methanol is injected? Making an exponential boost curve?

 

with a meth injection system extra fuel is not added to the system like a nitrous system. you can program the methanol system to come on at a certain psi and flow more as the psi increases. so yes you can run safe higher boost levels with out fear of detonation.

 

How does that effect you fuel to air ratio? because if you add more in general to the chamber wont you naturally run richer? Or does this system limit fuel to air mixture so when it injects methanol it is still an even mixture? I m a little confused. The idea either way makes me think about getting it, i would not mind a cooler running engine for a little more money.

Bigger question, because the methanol burns so much faster does it create an increase in power or does it just create a cleaner and more efficient burn and help dissipate carbon build up?

 

since methanol is a fuel it does richen up the mixture, the water that is mixed in with the methanol is what cleans the engine and cools the intake charge. thats why you can run higher boost levels is because the methanol acts like an octane booster and the water cools the charge. so, there is a higher resistance to detonation because of the cool charge and higher octane fuel. Unless your truck is boosted there is no reason for a meth kit.

 

I plan on adding a turbo, but i am going to wait a little bit to see your stage 2 or at least till you perfect your tuning.

Ok, so the water itself helps to dissipate the Carbon. Now what exactly is the point of the methanol than? Why not just run on a higher octane to begin with and inject MICRO amounts of water vapor?

Also when do you think you will have a kit for meth injection made by the owner? (said you knew him). I would like the same kit or a modified version if needed, but all the same something very similar to the one you end up making with him.

Could you control the boost to increase with the rpms? since the methanol will increase as the boost does thus being able to push more boost in as rpm increases.

When running on Methanol, how much methanol/water will you burn per gallon of gas generally?

 

ok my stage two is going to take some time. i plan on trying to get the meth kit this summer. my tunning on this set up should be done in a couple weeks waiting on my turbo to get back from the rebuild and im going to put my external wastegate on also so its easier to control the boost and not have the boost spikes like i do now.

the reason for a meth kit vs just running a higher octane and injecting water is like here 91 is the highest we have and 101 is just to much and not worth it for a daily driver. plus when im just running around town on low boost the kit will be off and not used so i wont be using that much meth/water mix.

as far as boost Vs RPM the boost already climbs with the rpm because that is how forced induction works. so it will already be adding boost/meth as the RPMs raise

im not sure as to how much meth will be used per gallon. like i said for the most part the meth will not be used till i get high enough boost levels that the air charge will be hotter and the engine can use the extra boost in octane. I dont like to keep the truck in high boost for long. the only time it sees the 8-10lbs is when im racing or i need to get going quick, fast, and in a hurry.

 

What all did you get done to the Turbo?

Ok, so methanol is a cheap way to get a raceing octane?

Is it bad to go from octane to octane on a motor? doesnt it start to run different if you use one and switch back?

Why did you not go with a more customizanle fuel injection system, why did you keep stock?

 

lol..........

 

Im getting an all new center section and the housing polished on the turbo. no meth injection is not a replacement for race fuel its just to help during the times of high boost or just high ambient outside temps. switching from one octane to another on a stock truck wont matter much but i have my truck tunned for 91 going any lower with out a tune will cause detonation and i really dont want to blow the motor. the truck will be tuned for the meth so after i do that runing high boost with out it might just cause a lean condition and thats not good.

the fuel injection system is just fine all i will have todo later is upgrade the fuel pump. the computer on the other hand if i cant get the drivability problem fixed then i will change to a 5.0 or 5.8 ECM and see if that will help i know it can be tuned to run the truck and has alot more support for the ECM. i just need to see if it can do what i need it to if not then ill be droping alot of money on a stand alone computer to control the motor.

 

If you are going to run e85 you should get ahold of roger at c&s. He has been doing wonders with if for years. We got our carb from him and he also has been doins fuel inj stuff also. And yes E85 is great for detonation resistance. We were running upto 28psi before any sign of preignition. But for the most part we stayed around 10psi cuz on a 504 bbf you don't need much boost to make power lol

 

Is the motor a 4.9? If it is what all has been done to the internals?

 

No its a 504 inch big block. But he does bikes cars trucks I think he's even done a golf cart. He is one of the top 2 e85 guys in the country. http://www.candsspecialties.com/ he does mostly carb stuff but if you are stayin efi he can point you in the right direction

 

nice thread, been pondering this sort of setup on my daily driver 6 ...

 

I like to see all of the experimenting. That said, with the amount of physical time (your time is worth something isn't it?), Dyno time, Tuner time, cost of fabrication (Materials aren't cheap), and the cost of parts.......

A V8 would be cheaper, make more power and be soooooo much easier.

 

i realize dropping in another 460 into my dd would be sufficient ... but im looking to push the envelope somehow ... i think turbo six might be the way to go ...