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Thirst for Octane!

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Old Sep 28, 2018 | 12:42 PM
  #1  
3 Z06ZR1's Avatar
3 Z06ZR1
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From: salem OR
Default Thirst for Octane!

Have the following mods,
The heartbeat 2300 ARH 2 inch coated with cats, Halltech intake, ZR1 95 MM TB
Was 675 rwhp less the TB on 92 octane. Car runs run well!

Now I'm in another state where 91 straight unleaded is the premium sold here.
I added 4 gallons of 100 octane. Wow a whole new animal came out for 1 tank. Then when I drove till the empty light came on.
Then I filled with straight 91 again. Seems to drop some even from the 92 octane This 91 here is weak Less power for sure.

So since E85 is around everywhere here. I added to 15 gallons 2 1/2 gallons 100
octane which is unleaded with no e. Then added 1 1/2 gallons of e85. Car runs great again with certainly over 700 rwhp,
Which should be less than e -10 total when mixed the E85 with the rest of the tank of unleaded.

Last edited by 3 Z06ZR1; Sep 28, 2018 at 12:44 PM.
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Old Sep 28, 2018 | 05:08 PM
  #2  
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Originally Posted by 3 Z06ZR1
Have the following mods,
The heartbeat 2300 ARH 2 inch coated with cats, Halltech intake, ZR1 95 MM TB
Was 675 rwhp less the TB on 92 octane. Car runs run well!

Now I'm in another state where 91 straight unleaded is the premium sold here.
I added 4 gallons of 100 octane. Wow a whole new animal came out for 1 tank. Then when I drove till the empty light came on.
Then I filled with straight 91 again. Seems to drop some even from the 92 octane This 91 here is weak Less power for sure.

So since E85 is around everywhere here. I added to 15 gallons 2 1/2 gallons 100
octane which is unleaded with no e. Then added 1 1/2 gallons of e85. Car runs great again with certainly over 700 rwhp,
Which should be less than e -10 total when mixed the E85 with the rest of the tank of unleaded.

Are you data logging? Any knock? Running out of fuel? Would be interesting to see exactly what is going on with your fuel. Are you a bartender? You mix like one LOL.
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Old Sep 28, 2018 | 05:13 PM
  #3  
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From: Huntingdon Valley Pa/ Town of Webb NY
Default

My turbo s makes 53 whp more running 100 octane vs 93 octane, have a 93 tune and a 100 tune, I am lucky to have 100 on tap at my local Sunoco station
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