true - the knock sensor is very helpful

However - when running ultra high boost (26 - 30 psi) and very lean a/f - if the alcohol fails it may start knocking really hard and by the time the stock ecu pulls enough timing the damage may have already been done

obviously with a slightly lower boost and richer a/f (as we have been tuning them) you have a greater chance of the stock ecu protecting your weak *** stock pistons

 

600hp on stock pistons is pretty dam stout..which i think the evo motor is capable of..on a honda motor..you can get a good tune..put out about 280 - 300..eventually the ringlands always give out lol...

 

yes - the stock pistons either the ring lands go or they crack in half

 

How much boost is the alky usually tuned for on a stock turbo?

 

25 - 26 is resonable and safe

 

What makes the newer kits safer than the older ones? Do the newer kits have a smaller nozzle? I just got a kit from you and I'm told (by SMC) that the kits have a 7 gph nozzle in them now. I know that at least some people on this board are using a significantly larger nozzle on this kit.

 

Actually GTVEVO posted up how to hook the SMC alky kit into the AEM using the nos map and IC Spray light as a safegaurd. David did post that he is using it with an added on/off switch at the controller so it doesn't have to be ran all the time though.

https://www.evolutionm.net/forums/sh...d.php?t=151383

Thanks for the props though, it works very well.

 

For me, it was the bottom end and it took about half a second for it to go.

 

dam thats pretty quick for it to go like that... I guess guages wont work since it only takes a sec to blow.

 

I sure it also depends on how aggressive your tune is, what size alky injector your using and how lean your running the car.
Like I was told though, you have to pay to play!

 

Not sure but I think its the 4th or 5th generation one. The nozzle that sprays upwards and the gauge is right underneath the intake pipe. My kit is installed but it hasnt been tuned yet. I hooked up apower switch so its turned off for now. What should my afrs be if I want a safe tune just incase something does go wrong?

 

statix -- Do you know what caused your alky kit to stop spraying?

Derek888 -- I just got one of the new kits and am planning to tune mine to AFRs in the high 10s, especially around the torque peak. You can go much much leaner for more power, but the risk increases significantly.

 

I have personally seen two EVO8 engines damaged from use of alcohol injection. The cost to repair them wasn't cheap either. It depends how lean you tune the car and how much alcohol you are spraying. The more boost, leaner AFR, and more alcohol you spray the more the risk in danger to your car.


GTEVO has incorporated safeguards into the AEM which work AWESOME. I have been on the phone with him discussing this for the past few weeks. We are trying to incorporate the Alkycontrol kit with it as well. His writeup is kick ***, heck even Buschur uses it .


The thing thats gets me is people will dump 30k buying the car, 10-15k on parts, and are looking for the cheapest kit on the market to put on their 40-45k investment.

 

What hp differences are you going to see between running leaner and high 10 AFRs? If I were to run safe(10 AFR) do I need to lower my boost as well? My goal is to run 26 psi on stock turbo along with my fully built race head.

 

I have no idea what HP gains I'll see. As long as I get at least 20 whp from the kit, I'll be happy. $25/hp is a great bang per buck.