I read somewhere, don't know how true.
![](./images/smilies/spacer.gif)
But it also helps clean the internals, essentially a steam clean everytime it's used.
![](./images/smilies/spacer.gif)
Helping to remove deposits and evening out compression in each cylinder
![](./images/smilies/spacer.gif)
(basically helping and removing battle carbon build up on the pistons).
![](./images/smilies/spacer.gif)
Many people are banging on about whether it cools the intake temps or not, but surely more important is whether it helps keep detonation at bay.
![](./images/smilies/spacer.gif)
Many moons ago, on my rev5, tuning on the dyno, we switched Wi on and off.
![](./images/smilies/spacer.gif)
Although Ryan
![](./images/smilies/spacer.gif)
(2bar tuning) didn't mention any change in intake temps, he did note reduced knock/det situations.
![](./images/smilies/spacer.gif)
Same boost/timing! Simply on and off test.
![](./images/smilies/spacer.gif)
Only for a pull or 2 to be fair.
![](./images/smilies/spacer.gif)
So what about swinging this arguement around and consider it's reduced det possibilities, if you don't agree/believe/know it drops temps at least.
![](./images/smilies/spacer.gif)
I have to say, on my power fc on my old car, intake temp reading on the commander, i don't remember any sort of decrease in intake temps.
![](./images/smilies/spacer.gif)
It certainly was not significant otherwise I would have remembered in sure.
![](./images/smilies/spacer.gif)
I run wi today to help keep det at bay and to clean the engine, if I see lower temps, great, if not, not an issue.
![](./images/smilies/spacer.gif)
So in saying that.
![](./images/smilies/spacer.gif)
I imagine a cc setup running wi would be quite bullet proof if tuned well.
![](./images/smilies/spacer.gif)