http://www.designengineering.com/cat...hilling-system

Has anyone used this kit before? Is it any good?

 

If I'm not mistaken, these types of things are banned in most motor sports. I don't know why, but I'm sure there is a good reason for it.

 

I would shy away from something such as that. It must be pressurized in the holding tank to at least 60psi to maintain a liquid state, and if something in the system were to fail it could mean bad news for you and the car (depending on where you mount it). I would just go with straight water injection if your a track rat, or water/meth for non track purposes before even considering this.

 

unless your fuel system is getting overheated due to operating the pump at 100% power all the time or due to bad fuel line or fuel filter placement, no cooling should be needed.

 

Fit a fuel cooler on the supply line

 

Or you get the aeromotive variable voltage pump power .

 

Or just use the factory dual stage power supply.

 

Colder fuel is better. On Porsche 996/7 turbos the fuel line is wrapped with the low side AC line before it enters the rail. Similar concept but it uses the existing AC equipment to chill the line. Even if it's not getting "hot", if you can get it colder the better. Will you notice a difference? Probably not. There are many other modifications before requiring a fuel cooler.

 

Everyone is looking for an edge, but this isn't it. The insignificant change in fuel density doesn't offer any benefit. Maybe something can be said for the cold fuel cooling the intake charge, but hard to imagine that it helps. Better to just focus on trying to keep the fuel from getting hot.

 

True. I agree not necessary for this application. But every edge helps and cooler fuel isn't a tall tale. I will try and find back to back dyno charts for a GT3 Cup we played around with a few years back. IIRC horsepower didn't fall off as drastically with heat soak, which for an enduro car, helps. First pull was identical, but by the third pull the none fuel cooled runs were loosing power at a more rapid rate. Just food for thought, and I understand a GT3 cup is way more refined than a DD Evo.