Optimal Octane?

Flexhorn · 02-09-2020, 10:27 PM

Does anyone know what the optimal octane level is for the ZL1. On the Torco label it says you can raise it 14 points with 128 oz. However, I’m told that there is a ceiling benefit based on the compression ratio of the engine. I don’t mind putting in 4 bottles when I go to the track but I don’t want to waste $25/bottle if it’s not doing any good either. Thanks in advance

ACZ28 · 02-10-2020, 02:46 AM

If I'm not mistaken, 14 points is only an increase of 1.4 octane..I certainly don't believe it would take an entire gallon of octane booster for that.

I was considering trying some last year but did eventually find a local station with 93 and top tier so I never ended up purchasing any. I don't think finding 93 in TX should be an issue.

Maybe somebody else will jump in and offer actual information but I personally don't see any reason to use octane booster unless you're running less than 93 or if it's really hot out. I just don't think you're going see any benefit on a car that's factory tuned for 91 or 93...nothing higher.

arpad_m · 02-10-2020, 06:15 AM

I used RaceGas on the dragstrip last fall, mixed 16 oz into about 10 gallons of 93 pump gas. This didn't raise octane drastically, only to 95-96, but it was just enough to clean up the 0.5-2 degrees of KR the car had at the top of 3rd and 4th gear. Car is approx. at or a bit above stock ZL1 power level. Ambient temp at the track was about 90 degrees.

Seems the 93 octane served up here in northern NJ isn't exactly the best, even after trying different stations, mostly BP and Shell. (Yes, I know there is little difference between them, oh well.)

ZL1 1LE · 02-10-2020, 11:42 AM

I believe that Ted Jannetty said that 100 octane was good for 30 hp without a tune. I hope that I'm not misquoting him. I run the RaceGas race fuel concentrate as well bringing up our 91 octane to 95 octane.

ACZ28 is absolutely correct and one has to be careful about points of octane vs numbers of octane. It takes 10 points of octane to raise up the octane number by 1. e.g. 10 points of octane raise 93 to 94 not to 103.

*radz28* · 02-10-2020, 12:08 PM

If I recall, the Owner's Manual states the car would start pulling timing on anything less than 93. So anyone on 91, could find some retard.

FoundNemo · 02-10-2020, 12:11 PM

Quote:

Originally Posted by ZL1 1LE

I believe that Ted Jannetty said that 100 octane was good for 30 hp without a tune. I hope that I'm not misquoting him. I run the RaceGas race fuel concentrate as well bringing up our 91 octane to 95 octane.

ACZ28 is absolutely correct and one has to be careful about points of octane vs numbers of octane. It takes 10 points of octane to raise up the octane number by 1. e.g. 10 points of octane raise 93 to 94 not to 103.

Link, and you are correct, per Ted, up 20-30rwhp on OEM tune with 100 octane.

https://www.camaro6.com/forums/showt...=569561&page=3

LIVEVIL · 02-10-2020, 02:20 PM

Quote:

Originally Posted by ACZ28

If I'm not mistaken, 14 points is only an increase of 1.4 octane..I certainly don't believe it would take an entire gallon of octane booster for that.

Torco advertises that as 14 actual points, so from 93 to 107 octane.

Don't think anyone actually tested this, but lots of people have had good success with Torco using far less quantities (128oz is ALOT), so I believe it's more than just 1.4 octane for 14 points.

Flexhorn · 02-10-2020, 07:39 PM

The label says +14 Octan 32oz with 5 gallons of gas. 128oz with 20 gallons of gas to get +14 Octane. It advertises “mix with 5 gallons of Premium Unleaded to make a whopping 105 Octane”

Flexhorn · 02-10-2020, 07:42 PM

More directions

Markoz28 · 02-10-2020, 08:39 PM

4oz of Boostane will raise 16 gal of 93 to 95-96 according to the owner of boostane. I’ve tried it but have no way to verify or disprove this claim. Now I’m running 93 and meth.

FoundNemo · 02-11-2020, 06:44 AM

There are warnings I believe in the owners manual about using additives with MMT. Might want to double check.

IneedAZ · 02-11-2020, 07:39 AM

If you plan to run a booster often it pays to order the 5gal of Boostane. That is what i do. When you catch it on sale it brings the cost down to ~$8-9 per can depending on which sale you catch. I know they have 15%off coupon code on google right now with free shipping. I have another 5gals being delivered today.

2ltrgsr · 02-11-2020, 07:48 AM

A light spray of 100% meth does the same thing

02-09-2020, 10:27 PM	#1
Flexhorn Drives: A10 ZL1 Join Date: Mar 2018 Location: Longview, Texas Posts: 142	Optimal Octane? Does anyone know what the optimal octane level is for the ZL1. On the Torco label it says you can raise it 14 points with 128 oz. However, I’m told that there is a ceiling benefit based on the compression ratio of the engine. I don’t mind putting in 4 bottles when I go to the track but I don’t want to waste $25/bottle if it’s not doing any good either. Thanks in advance

02-10-2020, 06:15 AM	#3
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,625 View My Garage	I used RaceGas on the dragstrip last fall, mixed 16 oz into about 10 gallons of 93 pump gas. This didn't raise octane drastically, only to 95-96, but it was just enough to clean up the 0.5-2 degrees of KR the car had at the top of 3rd and 4th gear. Car is approx. at or a bit above stock ZL1 power level. Ambient temp at the track was about 90 degrees. Seems the 93 octane served up here in northern NJ isn't exactly the best, even after trying different stations, mostly BP and Shell. (Yes, I know there is little difference between them, oh well.) __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

02-10-2020, 11:42 AM	#4
ZL1 1LE @zle_blackwing Drives: 2018 ZL1 1LE Join Date: Mar 2017 Location: S OC Posts: 1,390	I believe that Ted Jannetty said that 100 octane was good for 30 hp without a tune. I hope that I'm not misquoting him. I run the RaceGas race fuel concentrate as well bringing up our 91 octane to 95 octane. ACZ28 is absolutely correct and one has to be careful about points of octane vs numbers of octane. It takes 10 points of octane to raise up the octane number by 1. e.g. 10 points of octane raise 93 to 94 not to 103. __________________ 2018 ZL1 1LE - Red Hot, Nav, PDR

02-10-2020, 12:08 PM	#5
radz28 Petro-sexual Drives: Ultra-Grin Join Date: Oct 2006 Location: Crazy Coast Posts: 15,201 View My Garage	If I recall, the Owner's Manual states the car would start pulling timing on anything less than 93. So anyone on 91, could find some retard. __________________ '20 ZL1 Black "Fury" A10, PDR, Exposed CF Extractor Magnuson Magnum DI TVS2650R // RFBG // Soler 103 // TooHighPSI Port Injection // THPSI Billet Lid // FF // Katech Drop-In // PLM Heat Exchanger // ZLE Cradle bushings // BMR Chassis-Suspension Stuff // aFe Bars // Diode Dynamics LEDs // ACS Composites Guards // CF Dash // Aeroforce // tint // other stuffs

02-10-2020, 07:39 PM	#8
Flexhorn Drives: A10 ZL1 Join Date: Mar 2018 Location: Longview, Texas Posts: 142	The label says +14 Octan 32oz with 5 gallons of gas. 128oz with 20 gallons of gas to get +14 Octane. It advertises “mix with 5 gallons of Premium Unleaded to make a whopping 105 Octane” Attached Images

02-10-2020, 02:46 AM	#2
ACZ28 Drives: 2019 ZL1 Join Date: Feb 2019 Location: NE Posts: 46	If I'm not mistaken, 14 points is only an increase of 1.4 octane..I certainly don't believe it would take an entire gallon of octane booster for that. I was considering trying some last year but did eventually find a local station with 93 and top tier so I never ended up purchasing any. I don't think finding 93 in TX should be an issue. Maybe somebody else will jump in and offer actual information but I personally don't see any reason to use octane booster unless you're running less than 93 or if it's really hot out. I just don't think you're going see any benefit on a car that's factory tuned for 91 or 93...nothing higher.

02-10-2020, 07:42 PM	#9
Flexhorn Drives: A10 ZL1 Join Date: Mar 2018 Location: Longview, Texas Posts: 142	More directions More directions Attached Images

02-10-2020, 08:39 PM	#10
Markoz28 Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018 Location: RGV Texas Posts: 1,527	4oz of Boostane will raise 16 gal of 93 to 95-96 according to the owner of boostane. I’ve tried it but have no way to verify or disprove this claim. Now I’m running 93 and meth.

02-11-2020, 06:44 AM	#11
FoundNemo Drives: 2019 ZL1 Join Date: Oct 2019 Location: GA Posts: 573	There are warnings I believe in the owners manual about using additives with MMT. Might want to double check.

02-11-2020, 07:39 AM	#12
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,110 View My Garage	If you plan to run a booster often it pays to order the 5gal of Boostane. That is what i do. When you catch it on sale it brings the cost down to ~$8-9 per can depending on which sale you catch. I know they have 15%off coupon code on google right now with free shipping. I have another 5gals being delivered today. __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

02-11-2020, 07:48 AM	#13
2ltrgsr AXLERODZL1 Drives: 2019 Riverside blue ZL1 Camaro Join Date: Dec 2018 Location: Carrollton, VA Posts: 205	A light spray of 100% meth does the same thing __________________ '19 ZL1 A10 Riverside Blue PDR/Nav/Sunroof Kong ported blower/snout Roto-Fab Big gulp 103 TB Lingenfelter Lower Pulley(9.17) 1 7/8 ARH headers and Exhaust Meth injection(single nozzle) 733whp/788tq

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