100 octane GM tune
10-20-2016, 10:27 PM
#141
Supporting Vendor
Yep. same here. I will check in again tomorrow.
10-21-2016, 10:13 PM
#144
Leeds.io
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St. Jude Donor '14-'15-'16
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Wow that's crazy. So if you're in California, or some other 91 and less place, and you buy a new Z06 you off the bat have a slower car.
Can someone please dyno a 2017? I'm sure it's the same **** but there's a slim chance it could be interesting.
Can someone please dyno a 2017? I'm sure it's the same **** but there's a slim chance it could be interesting.
Last edited by phantasms; 10-21-2016 at 10:13 PM.
10-21-2016, 10:16 PM
#145
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Everything from the factory retards timing from the Hi Octane table.
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GSpeed (10-22-2016)
10-21-2016, 10:23 PM
#146
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2017 C5 of the Year Finalist
St. Jude Donor '08
I also plan on getting the 100 tune...
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10-22-2016, 12:07 PM
#147
I tried to get it yesterday on my 17 while I was there getting the 500 mile oil change and they said it was not available for purchase on a 2017.
Last edited by h3mpking; 10-22-2016 at 12:17 PM.
10-22-2016, 03:47 PM
#148
Drifting
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I'm looking forward to what this crew finds out here. Doesn't someone here have a contact inside GM to answer this simple question?
10-22-2016, 04:16 PM
#149
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St. Jude Donor '14-'15-'16
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Judging by the year availability and the fact that the 2017 manual calls for 93 instead of 91 I have a feeling that yes they do all come with it. But I still believe that a Z with this tune is going to run worse on 91 than a Z without this tune. There's a possible chance that I have no idea what I'm talking about though. 
Last edited by phantasms; 10-22-2016 at 04:17 PM.
10-22-2016, 04:28 PM
#151
Drifting
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Judging by the year availability and the fact that the 2017 manual calls for 93 instead of 91 I have a feeling that yes they do all come with it. But I still believe that a Z with this tune is going to run worse on 91 than a Z without this tune. There's a possible chance that I have no idea what I'm talking about though.
Did you remove that Bernie rap yet or switch to Hillary? My hands shake just typing her name
10-22-2016, 05:30 PM
#152
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St. Jude Donor '14-'15-'16
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You may be right and I hope so. Seems 93 is plentiful for most. My company will be testing Race-Gas additive and possibly becoming a dealer for. If it all comes together at the track with 93, Race-Gas and this tune may be a great receipt for us speed freaks.
Did you remove that Bernie rap yet or switch to Hillary? My hands shake just typing her name
Did you remove that Bernie rap yet or switch to Hillary? My hands shake just typing her name
Working on something new a crazy....not political though.
Last edited by phantasms; 10-22-2016 at 05:30 PM.
10-22-2016, 06:26 PM
#153
Burning Brakes
I have no idea how you can come to the conclusion that the 17s already have a 100 octane tune when the manual says 93 recommended but 91 may be used with reduced performance. It's not even the same numbers. LOL
It's not available for the 17s because it's different hardware and there has been no testing or validation on them as they are just now shipping. It may come out later or not at all.
Also every location that has the lower 91 octane has always had to deal with having a high performance car (high compression or boosted) that just won't make as much power as those that have 93 octane. This isn't just a Z06 thing.
It's not available for the 17s because it's different hardware and there has been no testing or validation on them as they are just now shipping. It may come out later or not at all.
Also every location that has the lower 91 octane has always had to deal with having a high performance car (high compression or boosted) that just won't make as much power as those that have 93 octane. This isn't just a Z06 thing.
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GSpeed (10-25-2016)
10-22-2016, 07:14 PM
#154
I have driven straight 100 octane fuel in my 2015 Z06 at a couple of road course events. The car absolutely loved it. I had stock tune.
Last edited by h3mpking; 10-22-2016 at 07:34 PM.
10-22-2016, 07:25 PM
#155
Drifting
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I have not so a question. At the end of a session any feeling of timing pull? Any noticeable diff in coolant temps. I know both of these questions cannot be very definitive.
10-22-2016, 07:39 PM
#156
I noticed the car did not seem to pull power like it would without the higher octane fuel. That could have been all in the head. I also liked the fact that the exhaust tips did not turn black when running the 100.
The temps still climbed as you would expect after a 20 minute run of open throttle.
On my 2017, I have just over 500 miles on it and have noticed that the exhaust is nowhere near as black as the tips on my 15 got driving around on 93 pump gas. I wonder if they have leaned things out a bit.
10-22-2016, 08:12 PM
#157
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HAHA..Lived it and loved it!
I noticed the car did not seem to pull power like it would without the higher octane fuel. That could have been all in the head. I also liked the fact that the exhaust tips did not turn black when running the 100.
The temps still climbed as you would expect after a 20 minute run of open throttle.
On my 2017, I have just over 500 miles on it and have noticed that the exhaust is nowhere near as black as the tips on my 15 got driving around on 93 pump gas. I wonder if they have leaned things out a bit.
I noticed the car did not seem to pull power like it would without the higher octane fuel. That could have been all in the head. I also liked the fact that the exhaust tips did not turn black when running the 100.
The temps still climbed as you would expect after a 20 minute run of open throttle.
On my 2017, I have just over 500 miles on it and have noticed that the exhaust is nowhere near as black as the tips on my 15 got driving around on 93 pump gas. I wonder if they have leaned things out a bit.
10-22-2016, 08:23 PM
#158
Drifting
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I see blue rails in the background of your avatar is that possibly Watkins Glen?
10-22-2016, 08:54 PM
#159
My avatar pic is from Circuit of the Americas.
10-22-2016, 09:00 PM
#160
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I definitely think something is different on this 17 but without dyno proof or tune evaluation I am staying mum. It is looking quite possible that the tune is in line with that 100 octane tune. Will be curious to see someone pull data.
My avatar pic is from Circuit of the Americas.
My avatar pic is from Circuit of the Americas.