Quote:
Originally Posted by Coldjensens
No you don't.
It is a good race fuel if you have a big enough fuel tank.
E85 contains less energy than pure gasoline. Therefore you get less power out of it.
Because it is less explosive (more stable) it has higher octane levels (about 106) and therefore can be used in higher compression engines that might otherwise require expensive racing fuel. However, due to the fact it has less energy, you may have to install a bigger fuel tank (which is initially heavier). You will also need to replace some parts if you are going to run E85, starting with your fuel level sensor. Then you will need to revise your injector cleaning/replacement schedule and your engine rebuild schedule. IF your car will sit for a while, run it empty/near empty and put in some pure gasoline if you can find it, or 10% ethanol with Stabil (or equivalent) added. Do not leave your car sitting for months with E85 in it.
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Um, yes I do. Yes, it requires more fuel, but it allows me to run more boost and timing.
You don't seem to know anything about ethanol in regards to performance.
I ran an E40 mix when I was on the stock turbo, and now run an E25 mix now that I upgraded the turbo to free up some injector headroom.
You have the internet at your finger tips, all the tuners are tuning on E85 or some kind of blend because it's cheap and cools the cylinders which keeps knock at bay. There are even gains to be bad on naturally aspirated motors, but forced induction cars see the largest gains.
Here are some old logs to compare. The 93 tune was knock limited, and the E25 tune went on to make 60 more whp more than this graph and the same amount of torque. BTW I've been running higher concentrations of ethanol for over 2 years and about 40k miles with no issues and have made no modifications to my fuel system besides upgrading the high pressure fuel pump.
Here, I've added the graph where my car sits about now, both lines are on E25. This would not be possible with my current hardware without ethanol.