06-30-2020, 09:22 AM | #1 |
Drives: 2017 ZL1 Join Date: Apr 2020
Location: South florida
Posts: 332
|
Sunoco GT 260
My 17 ZL1 is my first forced induction car. I have a Sunoco nearby that sells race fuels. They have the GT 260 at the pump. Unfortunately it is currently $9.49 a gallon. It is oxygenated 100 octane unleaded. Would a blend of the 93 and 100 octane be worth it ? If so what blend ? Thanks in advance for any input.
__________________
2017 ZL1 M6 Silver Ice Metallic
|
06-30-2020, 09:25 AM | #2 |
Drives: 2019 ZL1 Crush Join Date: Jan 2019
Location: Colorado Springs
Posts: 564
|
is it leaded or unleaded? If you are stock, 93 is just fine
__________________
2019 Crush A10
E-Force 2650 670WHP 615WTQ All besides the 2650 is bone stock down to the air filter. |
06-30-2020, 09:38 AM | #3 |
Drives: 2017 ZL1 Join Date: Apr 2020
Location: South florida
Posts: 332
|
It is unleaded The mods have begun
__________________
2017 ZL1 M6 Silver Ice Metallic
Last edited by Flowtie1; 06-30-2020 at 10:06 AM. |
06-30-2020, 10:18 AM | #4 |
Drives: 2019 ZL1 Crush Join Date: Jan 2019
Location: Colorado Springs
Posts: 564
|
I am running close to 700rwhp on 91 here in Colorado. No knock, no timing retard
__________________
2019 Crush A10
E-Force 2650 670WHP 615WTQ All besides the 2650 is bone stock down to the air filter. |
06-30-2020, 10:27 AM | #5 |
Drives: 2017 ZL1 Join Date: Apr 2020
Location: South florida
Posts: 332
|
I am in south Florida and thought it might be a nice cushion in the heat ?
__________________
2017 ZL1 M6 Silver Ice Metallic
|
06-30-2020, 10:47 AM | #6 |
Drives: 2019 ZL1 Crush Join Date: Jan 2019
Location: Colorado Springs
Posts: 564
|
Hit the strip a couple weekends ago, was 101 and no issues at all
__________________
2019 Crush A10
E-Force 2650 670WHP 615WTQ All besides the 2650 is bone stock down to the air filter. |
06-30-2020, 11:47 AM | #7 |
Drives: 2018 ZL1 Coupe NFG M6 Join Date: May 2017
Location: Nolensville, TN
Posts: 618
|
You'll problably pick up some big power on it, should be fine.
__________________
1989 Forumla 350 WS6 <- High School
2000 Trans Am Firehawk <- After High School 2017 Colorado Z71 <- Daily 2018 ZL1 M6 <- Not Daily |
06-30-2020, 12:01 PM | #8 | |
Drives: 2020 Camaro ZL-1 1LE Join Date: Jul 2018
Location: Nashville
Posts: 215
|
Quote:
__________________
Home Track: NCM Motorsports Park
|
|
06-30-2020, 12:27 PM | #9 |
Drives: 2018 Hyper Blue ZL1 1LE Join Date: Dec 2018
Location: CA
Posts: 1,360
|
I sometimes run a min of 4 gallons of VP 101 per tank to create a ~93 mix. Overall cost per gal for the 91/100 mix isn't bad, I created a simple Excel table that tells me how much 101 to add to achieve 93 depending on tank level, assuming 1/4, 1/2, 3/4 tank marks are correct. Like others have said, based on tests by reputable people this car adjusts timing/power up with increased octane up to at least 100 oct, so you can't add too much 100. At the track I add more for heat.
|
06-30-2020, 02:03 PM | #10 |
Drives: 17 NFG ZL1 17 GTR 22 RS6 Join Date: Apr 2017
Location: Upper Marlboro MD
Posts: 625
|
Does this ecu still adjust timing once tuned, or is the ecu kinda locked to what the tuner has provided as paramaters that adding 100 octane to a 93 tune wont matter?
|
|
|
Post Reply
|
|
|