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E85 Conversion for 2015 ZO6

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Old Jun 17, 2015 | 03:34 PM
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Default E85 Conversion for 2015 ZO6

If there is anyone who truly knows and understands the benefits as well as the effects, or the downside of installing a General Motors E85 conversion kit? Please give me your opinion, as well as, do you feel it's worth the possible horse power gain. I understand the different grades and the time of year play a role in this. I also understand the the octane measurement is incorrect calculations and most of the time the octane rating is incorrect.
I know that the sensor will automatically adjust the cars computer per its reading. According to the shop, the fuel pump in the ZO6 is the largest capacity they have. I understand that if it does not deliver enough fuel, the system wont work and it would be my loss of investment of the change.
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Old Jun 17, 2015 | 04:16 PM
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You need to do a search, lots of info here
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Old Jun 17, 2015 | 04:36 PM
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Default Thank you

Originally Posted by T/A KID
You need to do a search, lots of info here
I did, but may not be looking in correct place. Also, seems like diff years.
I'll look again.
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Old Jun 18, 2015 | 07:19 PM
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We have done a lot of E85 conversion's on C7's, tell me your mods now and I can help you out.
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Old Jun 19, 2015 | 10:34 AM
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Originally Posted by T/A KID
You need to do a search, lots of info here
Long Headers 2" ARH w off road X pipes
High flow air filter
Even flow hi performance thermostat
Spark plugs NGK 160 stat
Purple ice
e85 conversation
Tuner lme/aiw
Pulley 2.4

Last edited by Fatboyyella; Jun 19, 2015 at 01:03 PM.
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Old Jun 19, 2015 | 01:08 PM
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Default Ooops

Originally Posted by Joe@CPR
We have done a lot of E85 conversion's on C7's, tell me your mods now and I can help you out.
I posted a reply to wrong response.
LME/AIW Tuner
Pulley 2.4
NGK Spark plugs
High flow air filter
High performance thermostat
2" long headers w off road X pipe
purple ice
e85 conversion

Thank you
Mark
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Old Jun 20, 2015 | 07:20 PM
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Originally Posted by Fatboyyella
I posted a reply to wrong response.
LME/AIW Tuner
Pulley 2.4
NGK Spark plugs
High flow air filter
High performance thermostat
2" long headers w off road X pipe
purple ice
e85 conversion

Thank you
Mark
you would just need our secondary low pressure system and that should cover you.
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Old Jun 26, 2015 | 01:01 AM
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The main benefit from running E85 in my opinion and from studying data logs from pre and post E85 is that the timing is greatly increased--Another byproduct of increased timing is also increased airflow---Both of these things add HP !!
My car with stock tuning and all gas showed a WOT max timing of about 19-21* and an airflow max of about .92 grams per cylinder---
AFTER the E85 conversion and TUNING ---the timing spiked to an average of 29-30*
and a max airflow of about 1.08 grams per cylinder
That is huge !!!!!! More airflow--more timing ----equals more HP ---and there is NO hint of detonation --- and "0" knock retard----Engine runs cooler---and the driveability is identical as before----No dyno's where I live but common sense tells me that adding timing and increased measured airflow is the ticket to making more HP--- same goes for even a gas engine---
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Old Jun 26, 2015 | 10:15 AM
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Default Sounds nice!

Originally Posted by tblu92
The main benefit from running E85 in my opinion and from studying data logs from pre and post E85 is that the timing is greatly increased--Another byproduct of increased timing is also increased airflow---Both of these things add HP !!
My car with stock tuning and all gas showed a WOT max timing of about 19-21* and an airflow max of about .92 grams per cylinder---
AFTER the E85 conversion and TUNING ---the timing spiked to an average of 29-30*
and a max airflow of about 1.08 grams per cylinder
That is huge !!!!!! More airflow--more timing ----equals more HP ---and there is NO hint of detonation --- and "0" knock retard----Engine runs cooler---and the driveability is identical as before----No dyno's where I live but common sense tells me that adding timing and increased measured airflow is the ticket to making more HP--- same goes for even a gas engine---
Thank you. I dropped it off at the shop Wed. I'm sure with all the other goodies, I will be surprised. It is quite formidable as stock. I'm excited to see what it's like after. I'm hoping for 750 to the wheels. Corvette are HP bandits to the wheels of any car, so at engine, 650 becomes 550 at wheels. Ugh. Also with GM using the ECU to tame it has been frustrating. All will be changed.
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Old Jun 26, 2015 | 10:48 AM
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Originally Posted by Fatboyyella
Thank you. I dropped it off at the shop Wed. I'm sure with all the other goodies, I will be surprised. It is quite formidable as stock. I'm excited to see what it's like after. I'm hoping for 750 to the wheels. Corvette are HP bandits to the wheels of any car, so at engine, 650 becomes 550 at wheels. Ugh. Also with GM using the ECU to tame it has been frustrating. All will be changed.
Corvettes have some of the best wheel/engine power ratios of any rwd vehicle.
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Old Jun 26, 2015 | 12:49 PM
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Default Hmmm

Originally Posted by Higgs Boson
Corvettes have some of the best wheel/engine power ratios of any rwd vehicle.
Well, it surprised me when the gent at the performance shop said they had a higher loss due to some trans tube....not sure, but dynamometer showed about 100 hp loss.
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Old Jun 26, 2015 | 12:58 PM
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Originally Posted by Fatboyyella
Well, it surprised me when the gent at the performance shop said they had a higher loss due to some trans tube....not sure, but dynamometer showed about 100 hp loss.
650 to 550 is around 15% which is well within a chassis dyno margin for error. Other dynos have shown 12%. For example the C7 is 460 engine and some have dyno'd as high as 420, most in the 410 range....405 is 12% so 10-12% is pretty darn strong, IMO.

Some C7Zs have been around 580 right? That's 11%. So depending on the dyno, 75-125 HP loss could be right.

Remember, dyno's are tuning tools. You cannot compare numbers from one dyno to another, especially on different days or different geographic areas.
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Old Jun 26, 2015 | 01:23 PM
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Default Thank you

Originally Posted by Higgs Boson
650 to 550 is around 15% which is well within a chassis dyno margin for error. Other dynos have shown 12%. For example the C7 is 460 engine and some have dyno'd as high as 420, most in the 410 range....405 is 12% so 10-12% is pretty darn strong, IMO.

Some C7Zs have been around 580 right? That's 11%. So depending on the dyno, 75-125 HP loss could be right.

Remember, dyno's are tuning tools. You cannot compare numbers from one dyno to another, especially on different days or different geographic areas.
I appreciate the information.
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