E85 Powered VR4?

[ver fer]

780's will work fine. It will be easiest to tune using the gas scale. The idle and low load and be tuned at the same a/f as as, but you will want to tune a little richer at wot.

[Import Power]

Got my dual pump installed with -8an feed. Should be doing some back to back 110 vs E85 runs soon.

[a2j]

so AFR on e85 should be somewhere between 9-10? (at WOT), most gauges will show only 10.

[ver fer]

No 9 would be way too rich.

[Monster Stealth]

Originally Posted by a2j

so AFR on e85 should be somewhere between 9-10? (at WOT), most gauges will show only 10.

Unless your wideband can switch to an alternate e85 mode, the easiest thing to do it tune for gas A/F ratio which will convert to the correct A/F ratio for e85 since they are both based off a lamda value of 1

[coz]

Originally Posted by Import Power

Got my dual pump installed with -8an feed. Should be doing some back to back 110 vs E85 runs soon.

That would be VERY interesting! let us know what you find please
(tune the ign. for both fuels... )

[Import Power]

Originally Posted by coz

That would be VERY interesting! let us know what you find please
(tune the ign. for both fuels... )

she is already tuned for the 110, so I will do 110 runs, at XX boost then drain tank, put in E85 and run same boost and timing. I want just the fuel change difference. Of course I will add fuel to the AEM fuel map to hit the same AFR.

The Extra 30% fuel should prove to make more torque and boost should spool quicker.

-Chris

[coz]

Originally Posted by Import Power

she is already tuned for the 110, so I will do 110 runs, at XX boost then drain tank, put in E85 and run same boost and timing. I want just the fuel change difference. Of course I will add fuel to the AEM fuel map to hit the same AFR.

The Extra 30% fuel should prove to make more torque and boost should spool quicker.

-Chris

I want a dyno too
My guess is that racefuel will give more BHP and that MBT timing is not the same with e85 because of the burn rate ("burn speed" or something... burnrate=förbränningshastighet in swedish)
You could try one pull with less timing to see if there is any difference.

[a2j]

Originally Posted by ver fer

No 9 would be way too rich.

I just read that on one of the websites and decided to ask.

[Import Power]

Been trying to find E98 somewhere in drums. So I can mix my own and be sure it's 85% year around. Closest distributor I can find is Texas and it's $300 to ship it. twice the cost of the fuel.

-Chris