I hear that CAI's just do not work. As an alternative, has anyone installed a water/methanol injection kit to cool the air charge and increase octane? With this set up you can probably use a programmer like Hypertech or Unichip to increase timing which in turn will require you to use high octane premium gas to avoid ping. As I understand it, Water/Methanol injection will raise the octane rating of 87 octane pump gas to 100+ octane (i.e. racing fuel). You would also get a colder denser air charge which will also add power. Just curious if any of you have used this on a naturally aspirated engine.

Here is a link to AEM's injection product: aempower.com/ViewCategory.aspx?CategoryID=120

I figure it's OK to post the link since JK Forum vendors sell AEM.

If you need to know more about water/methanol injection here is wikipedia link.

http://en.wikipedia.org/wiki/Water_i..._%28engines%29

 

Thats just more bull-shit. THAT COMPANY MANUFACTURES CAIs

 

Water/methonal injection actually works. They have been using it in race cars and aircraft for a long time. Alot of people use it in diesel trucks to lower EGT and increase power. Im just not sure how well it works without forced induction (IE turbo/supercharger)

 

You can use windshield washer fluid too (just make sure its the plain stuff that has methonal in it)

 

There is a bunch of info out there on the web about this. Google water/Methanol Injection and you will find a number of products that claim to work on naturally asiprated engines. Of course, you will only see the true benefit from increased timing which is why I think you will need to install a chip or programmer.

 

I don't know why you would meth a jeep really...but to each its own. Yes, it works very well. My buddy has a grand national with it and a lot of evo owners did it as well. Fairly safe and great gains. But you would need a true tune.

 

Just looking for a way to add some HP and Torque without installing a Hemi or Supercharger to the 3.8. I figured cat back exhaust, unichip, and water/meth should add a little extra get up and go for a fraction of the cost of a supercharger..

 

I haven't read much on this for a while but water and methanol injection help with premature detonation in high compression engines. Thats the benefit of running high octane fuels in Gas engines. Diesel engines run silly high compression ratios and they benfit from water injection the same way. I'm not sure how much benefit there is to running without the high compression though. Add a turbo, supercharger or increased compression that's another story.

 

W T F are you talking about ? I own one of those CAIs. I dont hate everything . But im certain Im not too fond of you !

 

What are you looking for power wise? A free flow exhaust and CAI along with a programer should do the trick.. without the added complication..