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I run a small nozzle spraying as per my post above. I see 20’c temperature drop and no really noticeable change in AFR. Mix is 50/50.
Just what I wanted as I am only spraying for cooling
You will get more cooling with a bigger nozzle. Id do the MED 330cc at least. But 550 even better yet at your boost/power level. If you were spraying just water (which I wouldn't recommend) then the small to med nozzle would be more prudent as it will be about the same % of water in a 50/50 at a bigger nozzle and not risk spark blow out or poor atomization before it reaches cylinders, which can cause potential washing/fluid injection which you dont want.
Last edited by s2000Junky; Jun 10, 2019 at 11:06 AM.
For people running water meth its worth packing the TPS area of the throttle body with die electric grease to stop any meth or water getting into it. Glad you had good results Jim!
For people running water meth its worth packing the TPS area of the throttle body with die electric grease to stop any meth or water getting into it. Glad you had good results Jim!
Not a road I ever ventured down since I have always run the SOS upgraded 70mm TB which is modified stock and comes with upgraded O rings for those that run water/meth injection. Its a worthy upgrade anyway, but definitely if running pre Tb injection. Not sure how effective die electric grease on the stock TB would be, might be ok for a while?
Noted Junky re nozzle size. I may move to the medium but whilst everything is running right I haven’t seen the need to spray more.
I also run a SOS TB.
Map failure is my concern so I have a spare in the car just incase:
If its all working good, its hard to justify messing with it I know, however a nozzle change is easy and you are data logging it seems so you should get instant feedback on improvements, or easy to swap back if you want.
Ive never had a map failure in all the years/miles ive use meth injection if that data point does anything for you.
Really random but the more I read about all of this the more I’m hearing and receiving from the pros that you can choose to spray before the turbine but be 110% freaking sure atomization is at its finest. It ups the turbine’s efficiency, keeps temps in check everywhere and preserves/protects sensors from being coated and altering actual reading.
Now, how’d we even know if water or meth particles atomized enough or not? What jet would do a good job and which wouldn’t? Who knows if such even exists.
Really random but the more I read about all of this the more I’m hearing and receiving from the pros that you can choose to spray before the turbine but be 110% freaking sure atomization is at its finest. It ups the turbine’s efficiency, keeps temps in check everywhere and preserves/protects sensors from being coated and altering actual reading.
Now, how’d we even know if water or meth particles atomized enough or not? What jet would do a good job and which wouldn’t? Who knows if such even exists.
Smaller jets and more pump pressure is what offers the highest atomization. That doesn't mean there isn't adequate atomization at a given larger injector with less pressure, its just the scale of how it works. Injecting right on top of critical parts means your injection better be on point or yes there is more risk. Having time through distance for the injection to mix with the air before it hits the crucial component, ie cylinders, turbo/sc prop etc will improve atomization on a less then ideal spray. Its why injecting pre TB is more forgiving by the time it hits the cylinders, but a multi point system when you are injecting in each runner of the intake manifold per individual cylinder means the spray needs to be adequately atomized right form the nozzle. There is pros and cons and less/more benefits on all of these methods. Being clear on what your perfromance and safety goals are will help dictate what kind of injection you want/willing to go with.
