What octane for proper tune?

[Monkeluv]

Alright so trying to figure out best octane to run with my set up..mind you I cant find 93 in my area,so I'm limited to either 101 race or e85.

My set up is
ported stock blower/steigermier stage 6 style
-accufab single blade throttle body with plenum
-bap
-long tubes with o/r x and borlas
-4 lb lower
-2.8 upper
-idlers
-ngk tr6s at .33
-170 thermostat with fans already adjusted
-boost bypass
-130 amp alt.
I know I need bigger injectors and mass air but depending on what route I go with fuel will determine that
thats everything ive done motor wise. i do plan on putting the comp cams xer stage 3s in but not for couple months..should i wait till i put cams in and do tune all at once?

 

[gt347mustang]

E85

 

[GNBRETT]

Where do u live? Have u checked the E85 to see how good it is? Some places its E90, others its E70.

 

[01yellercobra]

Between those I'd run E85. Even if all they had was E70 I'd run it. Your wallet will thank you.

Unless you're want the lopey idle skip the cams. Save those for when you're trying to get every last horsepower.

 

[Monkeluv]

Where do u live? Have u checked the E85 to see how good it is? Some places its E90, others its E70.

Cali

 

[Monkeluv]

Between those I'd run E85. Even if all they had was E70b I'd run it. Your wallet will thank you.

Unless you're want the lopey idle skip the cams. Save those for when you're trying to get every last horsepower.

Gotcha

 

[Monkeluv]

E85

Gotcha

 

[Monkeluv]

You guys think boost will be too tight with my set up? I'm guessing around 15/16 mabe 17 psi

 

[01yellercobra]

What do you mean by too tight? If you mean too much I'd say you're fine. Lots of people run those levels on pump gas.

 

[Monkeluv]

What do you mean by too tight? If you mean too much I'd say you're fine. Lots of people run those levels on pump gas.

Stupid auto text.dont I know how it got tight from much. .maybe I should proof read from now on lol..but ok that's what I thought..I was told running my set up on 91 will damage my motor

 

[01yellercobra]

I wouldn't run 25psi on 91. But I'd say 15-17 is ok. I'm at 18psi right now. Granted I tune on the conservative side.

 

[Monkeluv]

I wouldn't run 25psi on 91. But I'd say 15-17 is ok. I'm at 18psi right now. Granted I tune on the conservative side.

Nice. Yeah I would rather stick with 91 right now instead of doing the whole E85 upgrade