E30 weekend usage and back to 93 questions

[SuperPete]

I am considering going E30 on my 2014 SHO, I already have GearHead 93 octane tune with K&N Intake, GH intercooler and planing on PPE Down pipes with in a month.
Now, the real questions is,
I am little bit in the country and E85 not at every station, there is one station about 10 miles away, not a big deal but not super convenient, anyway I was thinking to get E30 tune, run it here and there on the weekend and fall back on 93 for daily driving.
Is anyone going this route and how hard is this to switch back and forth, you need to load new mammogram and nearly empty the tank...

Let me know if I should mess with it
Thank you

 

[SM105K]

I would talk to Matt at Gearhead and see what your options are. I have seen that he isn't willing to do a true E30 without the upgraded fuel pump as of lately. I know his AO tune makes pretty good power as well and can accommodate a higher E % then what come out of regular premium. However, all your answers lie with him.

An E30 tune is amazing and would recommend it to anyone looking to step closer to unlocking the true performance aspect of the SHO.

 

[SuperPete]

I did talk to him, he wants me to send him log, and they go from there, but before that I am wondering if all that switch back and forth even worth it for me.
Like if I go somewhere out of my way and need fillup on the go and there is no e85 around kind of deal

 

[SuperPete]

Follow up question, what fuelpump would you recommend?

 

[SM105K]

I did talk to him, he wants me to send him log, and they go from there, but before that I am wondering if all that switch back and forth even worth it for me.
Like if I go somewhere out of my way and need fillup on the go and there is no e85 around kind of deal

I personally would ask him for a E30 tune and an AO tune. Run the AO tune during the week, then when you head to the E85 station, flash over the E30 tune after you fill up. I would personally run only about half a tank of E30 depending on how much you drive on the weekend. When the fuel light comes on, fill up and flash the AO tune back on. Takes minutes to flash a tune.

 

[SM105K]

For a "safe" E30 tune, Matt is going to recommend the XDI-35. Pretty sure it can be purchased directly from him as well.

 

[SuperPete]

Copy that, thank you gentleman, I guess pump will be a must before anything.
Thank you for your input.

 

[steelgiant5]

I would get a couple large gas cans... go fill up 2 cans and your allotted amount in the tank. Leave the e30 on all the time. Way more fun. Then when you get gas just take 1 of the cans with you and mix at the pump. That’s what I did before I had a station down the street


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[FiveLeeter918]

I would definitely recommend the XDI-35 pump for E30, especially with temps starting to drop. We do a lot of E30 tuning on the stock pump but we have to watch things carefully and don't recommend running E30 below 70* without an upgraded fuel pump.

With that said, there is no issue running 91/93 during the week and E30 on track days. Just fill, swap tune and go.

 

[SuperPete]

10-4.
Thank you

Now, would you say coils a must with new fuel pump or car can be happy with stock coils?

 

[15SHOPP]

10-4.
Thank you

Now, would you say coils a must with new fuel pump or car can be happy with stock coils?

Coils are not a must but coming from a guy that just changed his HPFP - I would make sure you get your coils and a fresh set of plugs if you're going to do it.

The reason being, the low pressure fuel line sits right over the #4 coil. In order to replace the plug and/or coil, you have to pull the fuel line off the HPFP.

 

[SuperPete]

My plugs are 800 mi old, so that is not an issue, car only has 25K original miles, so I think I'll stay on original coils for now and maybe later as x-mas present get an upgrade

 

[steelgiant5]

I would definitely recommend the XDI-35 pump for E30, especially with temps starting to drop. We do a lot of E30 tuning on the stock pump but we have to watch things carefully and don't recommend running E30 below 70* without an upgraded fuel pump.

With that said, there is no issue running 91/93 during the week and E30 on track days. Just fill, swap tune and go.

I run mine all year long with 14psi, throttle closing in between shifts to keep boost spikes at bay. Leaving a red light pedal to the floor no problem. Heavy downshifts on the highway when you get a spike is where the problem is for me.


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[FiveLeeter918]

I run mine all year long with 14psi, throttle closing in between shifts to keep boost spikes at bay. Leaving a red light pedal to the floor no problem. Heavy downshifts on the highway when you get a spike is where the problem is for me.


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Depends on much you push it I suppose.

 

[steelgiant5]

Depends on much you push it I suppose.

When the temps get below 30 you have to be a little more careful. I’m not saying it’s right for everybody. Lol, I’d love to have that pump but I can’t justify the cost


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[jman1200]

We do a lot of E30 tuning on the stock pump but we have to watch things carefully and don't recommend running E30 below 70* without an upgraded fuel pump.

This got me curious so please educate me, what could go wrong by using the stock FP?

 

[steelgiant5]

This got me curious so please educate me, what could go wrong by using the stock FP?

Low rail pressure, lean condition.... boom.. lol. The boost spikes depleted the rail, stock pump has a hard time recovering pressure


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[jman1200]

I see, thanks... boom no good.

 

[SuperPete]

I was always believer if you do it, do it right, no need to take unnesarry risk over $1500 fuel pump
It gets cold here in PA over winter, we will be facing freezing temps for next few months, I think I will hold off on pump and e30 setup to spring

 

[steelgiant5]

Exactly.. 1500$ fuel pump... that’s absurd...


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