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      07-18-2012, 06:29 PM   #7
Ilma
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Drives: 2008 135i
Join Date: Nov 2008
Location: Mississauga

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Quote:
Originally Posted by spool twice View Post
Should I be reconsidering using this considering my logs look healthy and the car feels just as strong?
I think the only way to really know is to measure power on a dyno.

I went to larger nozzles and reduced my meth percentage to 40% meth 60% water.

My timing curves looked fantastic!

But the car seemed to bog at lower rpms in high load gears like 3rd and 4th.

I upped the meth percentage back up to 80% and the car feels a bit more powerful, but my timing dropped about one degree up top.

I suspect that too much water will give you nice looking timing curves due to the combustion chamber cooling - but it may also reduce power.

So you can't rely on how your timing curve looks to indicate power levels. You would have to verify and fine tune on a dyno.

I think Formerboosted is right about quench.

There seems to be a fine line there. Too much water seems to rob you of power since it's effectively replacing fuel that would otherwise be making power.
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