anyone doing e85 ??

[M3sparky]

i had a flex fuel on my 13 gmc denali and i used both 91 or e85 since it was compatible to use both, i didnt have it tuned for it but i def felt the power difference, its not anywhere close to the power difference you get on turbo engines but it def was felt. for the gtr, i had changed my injectors, fuel pumps , and later installed a flex fuel kit so i can use both fuels or mix them anytime i want without having to change my tune, you just feel a huge power difference with e85 from 91. i also heard its corrosive or leaves some build up inside the engine, but i was told to just run a tank of 91 every couple months or so and it woudl clean it away. so i did even less 91 than that maybe in 4 month or 5 id run 91 tank since i just hated the power loss , but i never had any issues, it just makes a massive amount of torque as well with the turbos more than the stock gtr internals could handle so my gtr after 5.5 years finally started to knock lol, so its been down a couple months now, prob going to just do a engine build and bigger turbos now. but aside from that it would be awesome to have a flex fuel kit for this truck.

 

[802Avalanche]

i had a flex fuel on my 13 gmc denali and i used both 91 or e85 since it was compatible to use both, i didnt have it tuned for it but i def felt the power difference, its not anywhere close to the power difference you get on turbo engines but it def was felt. for the gtr, i had changed my injectors, fuel pumps , and later installed a flex fuel kit so i can use both fuels or mix them anytime i want without having to change my tune, you just feel a huge power difference with e85 from 91. i also heard its corrosive or leaves some build up inside the engine, but i was told to just run a tank of 91 every couple months or so and it woudl clean it away. so i did even less 91 than that maybe in 4 month or 5 id run 91 tank since i just hated the power loss , but i never had any issues, it just makes a massive amount of torque as well with the turbos more than the stock gtr internals could handle so my gtr after 5.5 years finally started to knock lol, so its been down a couple months now, prob going to just do a engine build and bigger turbos now. but aside from that it would be awesome to have a flex fuel kit for this truck.

Nice. the TT 6.2 Denali sounds pretty sweet. never got there with my 6.2. Ended up trading her in for the Raptor.

You're in MN? I'm in MPLS.

 

[M3sparky]

Nice. the TT 6.2 Denali sounds pretty sweet. never got there with my 6.2. Ended up trading her in for the Raptor.

You're in MN? I'm in MPLS.

yea after i put 35s on it , it was slow as a prius prob worst.. so i had to get more power out of it, and got talked into a tt kit, but had very bad experience with the shop(s) that worked on it, so i got tired of dealing with their bs and just bought the truck i wanted 2 years ago lol but this time without any markup, with a tune this this flys so im super happy with it. trying to figure out if i should put it back to stock or try to sell with turbos , since not many buyers would like not having warranty with turbos on the gmc. need that special type of buyer that would pay more for the setup, but would prob be easier selling it stock. but no im in CA , roseville.

 

[blk91gt]

I just saw 5 Star did a e50 tune with good results in a 2018 F-150. The only thing around me is e85. Seems like e85 would be better?? Maybe e50 can get away with less injector????

https://5startuning.com/product/2017-2018-f150-3-5l-ecoboost-e50-email-tunes-for-derive-systems-bdx/

I wonder if MPT will have tunes for this.

This seems like a good option

 

[Higgs Boson]

my raptor is flex enabled, yes.

MPT uses HPTuners so I am sure they will offer flex tunes. HPTuners has added lots of flex tables to their software.

 

[blk91gt]

Can our fuel system handle E-85? What changes were required?

 

[SexyAvalancheGrey]

Our fuel sysetm can not handle E85 straight but can handle an E30 blend (96 octane level)..............

 

[blk91gt]

Sounds interesting. I had been looking in to Methanol injection but am uneasy about running another system. (just don't know enough) There are several E-85 stations on the way to work though. Does any one know how an E30 tune compares to a methanol tune on our trucks (stock turbos) When I was looking into Methanol comparisons, It appeared on a regular F-150 EB the **** kit and tune was worth 30 hp and TQ over the regular tune.

 

[SexyAvalancheGrey]

**** injection is a bandaid, if u tune for methanol and that separate system gets clogged or stops pumping buh bye motor. I always tune for e85, ms109....etc. u know what u have at all times and is much safer.

Sounds interesting. I had been looking in to Methanol injection but am uneasy about running another system. (just don't know enough) There are several E-85 stations on the way to work though. Does any one know how an E30 tune compares to a methanol tune on our trucks (stock turbos) When I was looking into Methanol comparisons, It appeared on a regular F-150 EB the **** kit and tune was worth 30 hp and TQ over the regular tune.

 

[SexyAvalancheGrey]

If you do insist on running methanol injection you can use this gauge to have it as a fail safe which will cut the boost/power when the lambda/afr goes bad.


https://www.innovatemotorsports.com/products/psb1.php