I notice not alot of people who I asked dont like meth injection kits for the evo? Is it really that harmful to this cars motor?

 

meth used to be fairly popular until map switching and e85 came along

 

so is it harmfull to the engine? or is it ok to run?

 

In my opinion methanol/water injection is a viable solutions to running higher boost levels safely if your set up is well done. From what I have been reading on EvoM is that the number 1 cylinder is starved from meth there for causing the cylinder to run leaner then the other three.

Also from what I have been reading a failsafe is a very good idea as the nozzles could become clogged.

 

This is great, I plan on going with meth very soon.

 

2 years ago... every one and his momma wanted to do meth, now we have e85... go figure

Crappy AZ 91 oct ftw :facepalm: lol

 

but what if your only running a slightly higher boost level?

 

if your run out of meth your meth pump doesn't work etc you can still run a cyl lean and crack your pistons

 

what if it is running 20psi and i unhook the pump and turned it down to 18psi is that ok? since 18 is stock i believe

 

:facepalm:

Sorry but I don't even feel like explaining anything to you, so I'll just laugh.

 

Might I suggest some research before asking these questions out loud

 

because if it fails stuff might go BOOM lol

 

Shouldnt need meth for 20-25psi. but..................
you run meth at higher boost levels to keep the heat down. so if you were running 29+ psi, and went down to 20-25 you will be fine.
But remember the car is tuned to run meth at those boost levels. In Other words, run it, or dont run it at all.

 

If your tuned on meth for 20 lbs then your tune will be tuned for meth on 18 lbs unless your run tephra mods to do dual maps. Just because you unhook the meth pump doesn't mean that your tune is still going to be ok without it. Also if you do not tune to the edge of blowing up without meth then a proper failsafe can save your motor.

 

If you use meth make sure your tuner runs the same timing and afr's as a pump gas tune and keep her a bit on the rich side around 11.0,to 11.3 max and use it just for a knock supression . I wouldn't run past 31 psi while using just in case the pump or something of the sort fails.