Hi Everyone!
I hope you guys / gals can help me.
I have a 91 MR2 Turbo and I'd like to do a methanol injection setup. I"ve been looking on the internet for almost a week now and no luck with finding anyone that has done it. I did stumble upon this site though.

I have the AEM EMS, my whole fuel system is done, I have 4 850 cc injectors. My question is:
I'd like to add 4 extra injectors for the methanol injection.

Does the size of the injectors for the methanol injection matter as to how much bigger they are compared to the fuel ones?

Many thanks everyone.

 

Maybe these guys could help answer all your questions
http://www.smcenterprises.com/
Hope this helps.

 

Thanks Turbodan, I'll take a look.

 

If you're looking to fuel the car on methanol you'll nice about twice the flow as you would with gas. So 1600's in your case. I have some meth safe 1600's if you're interested.

If you're going to run meth with gas it all depends on the mix you want to run. You may use a single external injector like what comes in a standalone meth kit, or if you need a lot of flow fuel injectors in a secondary setup would work well. Make sure they're meth safe.

-Mike

 

Hi Mike!

Yea, I want to get 4 additional injectors to run the meth. (I did come across various single kit injectors).

So i can use the 1600s for gas and 850cc for meth?
Mind you its a street car, so It'll be a mix of meth and gas.

So obviously I'd have to make sure the FPR is also meth safe?

many thanks Mike!

 

You'd be using a separate FPR, fuel pump, etc. which you do need to be sure is meth safe, but your existing system doesn't need to be meth safe since the fuels don't mix until they're in the intake manifold and head.

If you're mixing fuel and meth you may not need 1600's. It depends on the mix you decide to run. I'd figure out your total fueling requirements with gas to keep that simple, then figure out what ratio of fuel and meth you're going to mix, and then you'll know how much the gas system has to flow and how much the meth system has to flow.

-Mike

 

Many thanks Mike, once again!

I'm not the most mechanically or technically inclinded person out there either. LOL
Looks like i got in over my head with this. LOL

How about a 50/50 mix? i've read most seem to do well with that?

 

Would 550cc injectors go well with the 50/50 mix, provided they're Meth safe?

Thanks again!

 

What is your horsepower goal on pump gas? What's the pump/meth goal?

I'll help you run the numbers.

-Mike

 

My goals are only 500-550 rwhp over all with pump and meth.

 

OK I'd go with 850s for gas and 950-1000's for meth. You could get away with running 850's for meth at 50/50, but at a high duty cycle you'd be heating the fuel too much. Also, since they're secondaries there is no downside to going a little larger.

I'm sending you a PM as well.

EDIT: How on earth did I just notice you're in Buffalo now?!?!

-Mike

 

theres no need to run 4 separate injectors for the meth injection. you can just run a single nozzle in the intercooler pipe and that will flow more then enough methanol to put you well over 600whp. I can get you a kit that will just have one Jet and will go into the intercooler pipe for less then 500$ or you can spend probably close to 1000$ if not more on this custom 4 injector setup with another pump, FPR, etc... its more headache then needed, you just dont need that much methanol to run the boost you need to. there are plenty of people on here making 550+whp with the single jet kit. I sent you a PM about it. Give me a call and i'll talk you through it.

 

checking your PM.
thanks.

 

He said he doesn't want a single jet kit already:
Then he said he asked about a 50/50 mix of gas/meth:
He'd need to flow about 3200cc to run 50/50 meth. A 15GPH meth nozzle (MONSTER for a meth injection kit) equates to 945cc for instance. He'd need at least three of them. Then you'd have to figure how to mount them so 3 nozzles spray evenly among 4 cylinders. 4 kits with smaller nozzles could be made to split evenly but this would be more bulky and complicated than a secondary injector setup.

Also, tuning secondary injectors rather than three or 4 meth injection kits is easier. Injectors are designed to pulse precise amounts as opposed to open meth injection nozzles.

If you really only want to inject a little meth, an external kit is definitely the way to go. If you want to run 50/50 fuel/meth, it's not.

-Mike

 

dude, he's asking about 50/50 not saying thats exactly what he wants to run. and he'd be much better off running 100% meth with an external kit.