So I've been searching and cant find anything for a 2022 3.5 Ecoboost.

Has anyone done a Low and High Pressure Fuel Pump upgrade on a 21/22 3.5 Ecoboost to allow them to push more fuel and run straight E85? Assuming you would probably need bigger injectors as well.

Currently running e30 with a JB4, but the ease of filling up with just one fuel is appealing. And of course any added performance benefits is just icing on the cake.

 

Check inside your fuel door. Pretty sure my 5.0 has an E85 ok sticker on the inside..

 

My 5.0 does

 

He has the 3.5 Eco Boost not the 5.0 engine!!

 

no such luck on the 3.5 ecoboost

 

Why would you want to run E-85? The owners manual for the 5.0 has some very specific instructions to run E-85. I tried a tankful and was not impressed.

 

You can see some pretty large power gains when running E85 with a tune. 5star advertised getting 550-600HP from a 2018 3.5EB with E50-E85 when the same truck only made 330-350HP in stock form.

I ran nothing but E85 in my 2014 5.0 F150 for about 2 years because it made a noticeable difference, particularly in hot weather.

 

e85 gives great performance gains.

for normal operation, sure dont run it. but if youre tuning for it, not much better thats as widely available.

 

fwiw, filled up with an e50-e60 blend yesterday and fuel pressures seem to be holding steady based on logs. Will move to e70 (about what most my e85 pumps are putting out) for the next tank and see what happens.