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C8 Tuned on E85

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Old May 30, 2024 | 03:26 PM
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Default C8 Tuned on E85

Got my car back yesterday. Tuned via hp tuners and flex by DSX only other mod was catless pipes.
happy with the results and sound now time to get to the track.

Old May 30, 2024 | 04:34 PM
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How does the extra power feel ? Don’t forget to update this thread with your time slips
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Old May 30, 2024 | 06:53 PM
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Nice numbers
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Old May 30, 2024 | 09:04 PM
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Originally Posted by 123sugey
How does the extra power feel ? Don’t forget to update this thread with your time slips
it feels much better, more responsive i feel. I will definitely do that. I ran the car 1 time and went 11.5 @ 123 I think. Bone stock. So thats the base line.
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Old May 31, 2024 | 07:02 AM
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Originally Posted by OrangeSix
it feels much better, more responsive i feel. I will definitely do that. I ran the car 1 time and went 11.5 @ 123 I think. Bone stock. So thats the base line.
Awesome numbers. Luv my E85!!!!
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Old May 31, 2024 | 07:15 AM
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Wow, 50 HP and 60 foot pounds just by changing the tune to E85? I called Cicio and they quoted me 5K to tune it.
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Old May 31, 2024 | 10:33 AM
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50HP from just tune, E85 and !cats is a great result, congrats!
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Old May 31, 2024 | 10:38 AM
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I have a Soler throttle body, ported intake manifold, Corsa high flow cats, Corsa headers, Corsa cat-back, and an aFe CAI on my car. Would a tune to E85 really add that much?
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Old May 31, 2024 | 10:49 AM
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My head's still spinning on the '$5K to tune it' comment. Is that what a tune is costing these days?
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Old May 31, 2024 | 11:09 AM
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Originally Posted by gtpvette
My head's still spinning on the '$5K to tune it' comment. Is that what a tune is costing these days?
The tuning itself is the cheap part, the expensive part is having the ECU unlocked.
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Old May 31, 2024 | 11:17 AM
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Originally Posted by Kracka
The tuning itself is the cheap part, the expensive part is having the ECU unlocked.
Why is the unlock so expensive?
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Old May 31, 2024 | 11:26 AM
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I guess Trifecta is charging the same fee?
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Old May 31, 2024 | 11:36 AM
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Originally Posted by Fore58
I guess Trifecta is charging the same fee?
I believe Procharger still has exclusive rights to Trifecta's tuning, but could be wrong.
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Old May 31, 2024 | 11:37 AM
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Originally Posted by gtpvette
Why is the unlock so expensive?
"Because they can" is likely the best explanation here. They being HPTuners. Your ECU needs to be physically mailed in to them to be unlocked. Time and money that went into the effort, lack of competition, etc. You then need to also buy the OBDII interface + credits on top of it.

I need to find an excuse to go to Des Moines, IA for a week and leave my C8 with Paragon for their full FlexFuel tuning: https://www.paragonperf.com/C8-Corve...ing_p_929.html
I much prefer this vs. manually switching back and forth between 93 & E85 maps.

Last edited by Kracka; May 31, 2024 at 11:46 AM.
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Old May 31, 2024 | 11:46 AM
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Originally Posted by Kracka
I believe Procharger still has exclusive rights to Trifecta's tuning, but could be wrong.
Well, I do know of one person who had their ECU supposedly unlocked by Trifecta with their NA C8.
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Old May 31, 2024 | 11:47 AM
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Originally Posted by Fore58
Well, I do know of one person who had their ECU supposedly unlocked by Trifecta with their NA C8.
Back in 2022, or someone more recent?
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Old May 31, 2024 | 12:36 PM
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Originally Posted by gtpvette
My head's still spinning on the '$5K to tune it' comment. Is that what a tune is costing these days?
Have you checked what a good cat back is going for these days?
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Old May 31, 2024 | 01:21 PM
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Originally Posted by Kracka
Back in 2022, or someone more recent?
Correct it was back during that time.
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Old May 31, 2024 | 01:39 PM
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Originally Posted by Kracka
"Because they can" is likely the best explanation here. They being HPTuners. Your ECU needs to be physically mailed in to them to be unlocked. Time and money that went into the effort, lack of competition, etc. You then need to also buy the OBDII interface + credits on top of it.

I need to find an excuse to go to Des Moines, IA for a week and leave my C8 with Paragon for their full FlexFuel tuning: https://www.paragonperf.com/C8-Corve...ing_p_929.html
I much prefer this vs. manually switching back and forth between 93 & E85 maps.

Cicio told me they could set the tune to run on either. I would have to think that they don't tune either optimally to keep both fuels happy.
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Old May 31, 2024 | 02:04 PM
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Originally Posted by jwt1603
Cicio told me they could set the tune to run on either. I would have to think that they don't tune either optimally to keep both fuels happy.
Full FlexFuel tuning uses an inline ethanol content sensor to balance the maps. You have two separate tunes, one on pump gas and and with straight E85, then the sensor's output determines how the two maps are blended together to account for the actual ethanol content. This is also helpful as pump E85 can vary in percentage between stations, seasons, etc.
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