Well my cousin who drives a supra has been ******* me to get a methonal injection kit. i am aware of its affects: being able to run more advanced timming, up the boost a little, lower intake temperatures, etc. but are the gains really effective considering the true weakness of a f/i vq is the weakness of the rods. as far so if anyone can chime in on this. thanks.

 

It will DEF. add a nice safety cushion if you are running 91 octane. So I would use it for SAFETY rather than POWER on a stock block.

Either way if you have the means you should add it.

Good luck!

-George
GT Motorsports

 

we are playing around with it again on a built motor greddy kit on 93 octane today. i will post up some graphs later of exactly what it did, we are tuning the car without it and adding it on top of the full tune to see what it will do with this setup.


more details in a bit...

 

tahts the way to do it...caus eits more of an added feature for safety...

r u using 50/50 mix?

 

actually, we are just snorting meth so we can stay awake and get more work done









yeah 50/50

 

Jt..is it the one from Snow Performance..I might want to do one of those too.

 

please be careful with methanol. audible was just joking for anyone thinking of fooling with it.

The lethal dose of pure methanol is estimated to be 1-2 mL/kg; however, permanent blindness and death have been reported with as little as 0.1 mL/kg (6-10 mL in adults).

Ethanol and water are alternatives...

That said, I was actually thinking about a dual nozzle setup that would spray my IC and TC (5AT) tied to the spare solenoid driver of the UTEC and triggered by intake and coolant temp. Thoughts?

 

Methanol injection is designed to be sprayed into the charge pipe after the intercooler, not externally. However i imagine you could spray trans cooler but would advise using pure water instead as methanol can be very corrosive and any overspray may damage any unprotected finishes of your car. will need two seperate methanol systems in that case may want to scratch the trans cooler idea not really worth the investment.

 

I have W/M on my car and Im wondering if there is an easy way to see what the actual temps are after spraying ? You have to spray after the MAF so the ECU will not see the drop in temps from the MAF to the plenum . SO you cant see what the intake's actual temps will be .

 

snow performance sells whats called "boost juice" i take it this is a 50/50 mix? dont know the price of it, or how fast you go through it (gallon?)

does it kick in after a certain rpm, or is it running all the time, even during street driving?

and lastly, i hear there are problems with using the stright water injection. maybe im wrong.

 

I have the Snow kit . I mix my own 50/50 mix .
I dont think there would be a problem using straight water . But it will not cool the intake temp as much and the octane boost effect will not be there .
You can set up the kit to come on at a certain psi and the spray will ramp up the spray as boost increases . You can also set at what psi full spray will be . I have mine set to come on at 4psi and be at full spray at 14psi

 

I would be more concerned with getting a good tune in Hawaii first. GTM want to come visit

 

Actually I was thinking of spraying the TRANS COOLER directly with windshield washer fluid whenever the IC was being sprayed, so just two nozzles and one pump.

 

Have fun doing that ! Spraying the Trq converter that is....lol

 

It was just an idea. I do have an Innovate logging system recording tranny temps so if it does nothing at least I'll know.

Do you think it will hurt something - shouldn't - should evaporate pretty quickly on a hot TC, right?

Okay maybe just external spray over the IC and transcooler is not such a bad place to start...

 

rc were you serious about spraying the TC?

 

Also, there are good good discussions on this in the archives i am sure, as we had a few threads on this.

I am just gonna sum up in a few sentences. For a good set up, it is not sufficient to have WI go on at certain boost, even if it ramps up with more boost. It needst o directly mirror the amount of airflow, NOT AIR PRESSURE. Airflow increases with RPM and BOOST, not jsut with boost. So, ideally, a system with a definable 3d map must be constructed and the duty cycle on the solenoid should mirror that of hte injectors.

 

i always wondered if spraying the 50/50 mix would actually cause the car to run richer. I always wanted to use WM injection but only as a safety margin, not actually tune for it.

 

That is actually a great idea!

-George
GT Motorsports

 

GurgenPB's discription of an ideal set up is correct , but we all dont have the EMS that can do it . So we are stuck with how the kit comes .

The W/M did richen up my A/F by almost 1 full point . Im able to lean it out to around 12 to 1 and put back some timing . And still feel very safe knowing teh intake temps are alot lower with it .