C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

Torco Octane Boost

Thread Tools
 
Search this Thread
 
Old Jun 23, 2005 | 10:15 AM
  #1  
ricatthebeach's Avatar
ricatthebeach
Thread Starter
Drifting
10 Year Member
 
Joined: May 2005
Posts: 1,659
Likes: 0
From: Las Vegas Location: Earth
Default Torco Octane Boost

I live in so cal where the highest octane is 91. Since C-6's are tuned at the factory to run on 93, I decide to try a tank with an octane booster. I used 1 can of Torco in a full tank of gas. I figured that 1 can would up the octane by a little over 2 points clearing 93 easily. The improvement in HP is "seat of the pants" noticeable. I don't have a dyno in my butt but I'm guessing about a 10-15 hp improvement. I'd recommend trying it. I bought it at jbsblownc5.net Big difference for not much dough!
Reply
Old Jun 23, 2005 | 10:32 AM
  #2  
jimman's Avatar
jimman
Le Mans Master
20 Year Member
 
Joined: Nov 1999
Posts: 7,695
Likes: 51
From: Imperial Beach CA
Default

Originally Posted by ricatthebeach
I live in so cal where the highest octane is 91. Since C-6's are tuned at the factory to run on 93, I decide to try a tank with an octane booster. I used 1 can of Torco in a full tank of gas. I figured that 1 can would up the octane by a little over 2 points clearing 93 easily. The improvement in HP is "seat of the pants" noticeable. I don't have a dyno in my butt but I'm guessing about a 10-15 hp improvement. I'd recommend trying it. I bought it at jbsblownc5.net Big difference for not much dough!
You are kidding of course, been there done that with both the C5 and C6. No effect on the C6 and actually dynoed the C5 and lost 18 rwhp.

I went in half on a 5 gallon can of it and still have some left you can have, just come get it.

Last edited by jimman; Jun 23, 2005 at 10:38 AM.
Reply
Old Jun 23, 2005 | 10:53 AM
  #3  
f355c5's Avatar
f355c5
Instructor
 
Joined: Apr 2005
Posts: 157
Likes: 0
Default

Bad idea--seals at risk-fuel pump ect
Reply
Old Jun 23, 2005 | 10:53 AM
  #4  
jbsblownc5's Avatar
jbsblownc5
Race Director
Supporting Gold
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Default

Originally Posted by jimman
You are kidding of course, been there done that with both the C5 and C6. No effect on the C6 and actually dynoed the C5 and lost 18 rwhp.

I went in half on a 5 gallon can of it and still have some left you can have, just come get it.
No, you've got to be kidding!!!!

There are MANY MANY forum members that use Torco with great success, not to mention my 2.5 years of using it.

I don't push it that often, but I have quite a few repeat customers that KNOW it works.

I've read a few times about your unsuccessfull experience with Torco.

When mixing a 32 oz can with 10 gallons of 91 octane gas, you will get 96.5 octane. End of story!!

I spent $400 at the lab to prove this. See results on my website.

HP is in the tuning.....

I stood there and watched a C6 gain almost 15 RWHP on the dyno, by just adding some Torco. I may even have a vid of it if you'd like.

JB

http://www.jbsblownc5.net/html/torco1.html


*****Quick update, 10 years later***** Still using Torco with GREAT success!! See more at www.jbsblownc5.net

Last edited by jbsblownc5; Aug 22, 2015 at 01:38 PM.
Reply
Old Jun 23, 2005 | 11:16 AM
  #5  
dshaner1's Avatar
dshaner1
Pro
 
Joined: Nov 2003
Posts: 570
Likes: 0
From: Olathe Kansas
Default

Reply
Old Jun 23, 2005 | 11:19 AM
  #6  
Hoonose's Avatar
Hoonose
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2000
Posts: 53,520
Likes: 77
From: Arizona
Default

Originally Posted by ricatthebeach
I live in so cal where the highest octane is 91. Since C-6's are tuned at the factory to run on 93, I decide to try a tank with an octane booster. I used 1 can of Torco in a full tank of gas. I figured that 1 can would up the octane by a little over 2 points clearing 93 easily. The improvement in HP is "seat of the pants" noticeable. I don't have a dyno in my butt but I'm guessing about a 10-15 hp improvement. I'd recommend trying it. I bought it at jbsblownc5.net Big difference for not much dough!
It's amazing how a little placebo grease improves the sensitivity of one's rearside.
Reply
Old Jun 23, 2005 | 11:19 AM
  #7  
tsnipe11's Avatar
tsnipe11
Advanced
 
Joined: Jan 2005
Posts: 79
Likes: 0
From: Pottsboro Texas
Default

I'd like to know how it increases HP. I dont get it.

This is from the how stuff works website
"The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites. When gas ignites by compression rather than because of the spark from the spark plug, it causes knocking in the engine. Knocking can damage an engine, so it is not something you want to have happening. Lower-octane gas (like "regular" 87-octane gasoline) can handle the least amount of compression before igniting.

The compression ratio of your engine determines the octane rating of the gas you must use in the car. One way to increase the horsepower of an engine of a given displacement is to increase its compression ratio. So a "high-performance engine" has a higher compression ratio and requires higher-octane fuel. The advantage of a high compression ratio is that it gives your engine a higher horsepower rating for a given engine weight -- that is what makes the engine "high performance." The disadvantage is that the gasoline for your engine costs more.

The name "octane" comes from the following fact: When you take crude oil and "crack" it in a refinery, you end up getting hydrocarbon chains of different lengths. These different chain lengths can then be separated from each other and blended to form different fuels. For example, you may have heard of methane, propane and butane. All three of them are hydrocarbons. Methane has just a single carbon atom. Propane has three carbon atoms chained together. Butane has four carbon atoms chained together. Pentane has five, hexane has six, heptane has seven and octane has eight carbons chained together.

It turns out that heptane handles compression very poorly. Compress it just a little and it ignites spontaneously. Octane handles compression very well -- you can compress it a lot and nothing happens. Eighty-seven-octane gasoline is gasoline that contains 87-percent octane and 13-percent heptane (or some other combination of fuels that has the same performance of the 87/13 combination of octane/heptane). It spontaneously ignites at a given compression level, and can only be used in engines that do not exceed that compression ratio."

Last edited by tsnipe11; Jun 23, 2005 at 11:24 AM.
Reply
Old Jun 23, 2005 | 11:49 AM
  #8  
Hoonose's Avatar
Hoonose
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2000
Posts: 53,520
Likes: 77
From: Arizona
Default

Higher octane rated fuel can take more spark advance, theoretically producing more HP.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-1

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-2

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-3

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-4

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-5

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-6

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-7

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-8

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-9

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
Old Jun 23, 2005 | 01:34 PM
  #9  
SpinMonster's Avatar
SpinMonster
Tech Contributor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Default

Originally Posted by f355c5
Bad idea--seals at risk-fuel pump ect
Where do you get this stuff from?

Last edited by SpinMonster; Jun 23, 2005 at 01:36 PM.
Reply
Old Jun 23, 2005 | 02:06 PM
  #10  
Shinobi'sZ's Avatar
Shinobi'sZ
Le Mans Master
Veteran: Navy
25 Year Member
All Eyes On Me
Top Answer: 1
 
Joined: Sep 2000
Posts: 6,976
Likes: 527
From: Clouds Over California
Default

Its amazing that people say things when they are clueless..or is it just called ignorant.

Do you really think that GM tunes each car for various Octane levels???? The difference between 91 and 93 is substantial. If you live in an area that sells 93 octane go put some mid grade in your car and come back and tell us how it runs. It would be the same for the people who live in areas that sell 91 octane putting 89 in. It would be the same for the guys who track their car not to use good gas on the track..do you think that is because they think it is a placebo...come on get a clue. The fact is when you don't get any KR you make more power. Higher octane resist detonation and therefore allows the car to make more power.

I have friends who purchased Hypertech Power Programmers back in the day. They installed the tune and their car would PING all over the place. Why??? It's speculative as to why, but in the area where the programmers are produced they had higher octane at the pump. I told the guy with the pinging problem, go put some octane boost in it..and see if it goes away..guess what it did. In the end he took the Hypertech out and got his money back..keeping the stock tune.

Here is some more proof and when you produce more power out of your car then some of the rest of us, you can come back and tell us what you did?


Down at A&As party...I had good ole 91 octane which seems to work OK for a measley 9# of boost pushing over 650hp on a hot day. Well Vette Magazine wanted to put some of the higher HP cars on the dyno for their coverage of the party and the cars that showed up. I hit Joel up for some Torco. I have to admit I was nervous (never used Torco before) considering the tune I had in the car for the 16# boost run which only yielded 870hp, was tuned on some Pump Sunoco 100 GT (sold at a local gas station). Well I dumped some Torco in the tank and managed to pull about 850hp on that dyno run with the AFR being 11.9 and ZERO KR. So if you don't think it works and that it is a placebo...you better get back to smokin crack.

The only point I am really trying to make, is that before you go bashing something, you should have some sort of understanding for that which you are talking about. Otherwise it is just Bull S hit.
Reply
Old Jun 23, 2005 | 02:16 PM
  #11  
Hoonose's Avatar
Hoonose
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Feb 2000
Posts: 53,520
Likes: 77
From: Arizona
Default

Originally Posted by Shinobi'sZ
Its amazing that people say things when they are clueless..or is it just called ignorant.
The only point I am really trying to make, is that before you go bashing something, you should have some sort of understanding for that which you are talking about. Otherwise it is just Bull S hit.
Your post confuses me a bit, but I guess you're supporting the Torco.
OK, and I don't disagree, and I suspect it works.
My reference to placebo was in regard to the gentleman's ability to discern the 10-15 HP difference in a 400 HP automobile, with his coccyx.
Reply
Old Jun 23, 2005 | 02:18 PM
  #12  
SpinMonster's Avatar
SpinMonster
Tech Contributor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Default

I agree 100%. Not sure if I'm one of the crack smokers but I was commenting on the higher octane damaging my fuel pump statement.

However there is another fact that is the flip side of what you said. If you don't have any knock retard and there is no detonation then higher octane with its slower burn rate makes less horsepower.

I am also confused with Shinobi's post. first it says you had 650 rwhp then you had 870 and it dropped to 850?? So anyway, you tuned on 100gt...is that 100 octane or 93 and you lost 20 hp on torco...assuming a lower octane??? or was it 93 and you added higher octane and lost 20hp....I can't understand if you are for or against octane. So how does losing 20hp on torco show octane is good or bad....do you have that reversed?....was it 850 and then you went to 870. You must have been in a rush. On a side note Andy built my motor too. Bet your car is sick to ride in!!

Hot rod magazine did this test on a car not pinging, misfiring, detonating,...ect and the car lost 5rwhp on higher octane...once the car is at a point that there is enough octane then higher octane results in less....otherwise I should start dumping in some 130 octane avgas from one of the planes in our hangar.

Last edited by SpinMonster; Jun 23, 2005 at 02:44 PM.
Reply
Old Jun 23, 2005 | 02:28 PM
  #13  
victory_C6's Avatar
victory_C6
Advanced
 
Joined: May 2005
Posts: 80
Likes: 0
From: St. Lucie West Florida
Default

I agree. I have seen this stated in numerous articles. Higher octane actually produces less horsepower due to it's slower burn rate.
Reply
Old Jun 23, 2005 | 02:35 PM
  #14  
SpinMonster's Avatar
SpinMonster
Tech Contributor
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2003
Posts: 12,094
Likes: 197
From: Colorado Springs, CO
St. Jude Donor '08-'09-'10-'11
Default

as long as there was no KR....then higher octane would definitely help.

Maybe auto-tap and such software doesnt catch the issues that the higher octane helps. Forced induction is a very different animal in that higher cylinder pressures make the combustion mixture more prone to octane sensitivity.

Last edited by SpinMonster; Jun 23, 2005 at 02:40 PM.
Reply
Old Jun 23, 2005 | 06:32 PM
  #15  
VET4LES's Avatar
VET4LES
Team Owner
10 Year Member
 
Joined: Oct 2004
Posts: 27,420
Likes: 64
From: San Clemente CA
Default

Originally Posted by victory_C6
I agree. I have seen this stated in numerous articles. Higher octane actually produces less horsepower due to it's slower burn rate.

Reply
Old Jun 23, 2005 | 09:31 PM
  #16  
ricatthebeach's Avatar
ricatthebeach
Thread Starter
Drifting
10 Year Member
 
Joined: May 2005
Posts: 1,659
Likes: 0
From: Las Vegas Location: Earth
Default What About The Manual

Originally Posted by tsnipe11
I'd like to know how it increases HP. I dont get it.

This is from the how stuff works website
"The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites. When gas ignites by compression rather than because of the spark from the spark plug, it causes knocking in the engine. Knocking can damage an engine, so it is not something you want to have happening. Lower-octane gas (like "regular" 87-octane gasoline) can handle the least amount of compression before igniting.

The compression ratio of your engine determines the octane rating of the gas you must use in the car. One way to increase the horsepower of an engine of a given displacement is to increase its compression ratio. So a "high-performance engine" has a higher compression ratio and requires higher-octane fuel. The advantage of a high compression ratio is that it gives your engine a higher horsepower rating for a given engine weight -- that is what makes the engine "high performance." The disadvantage is that the gasoline for your engine costs more.

The name "octane" comes from the following fact: When you take crude oil and "crack" it in a refinery, you end up getting hydrocarbon chains of different lengths. These different chain lengths can then be separated from each other and blended to form different fuels. For example, you may have heard of methane, propane and butane. All three of them are hydrocarbons. Methane has just a single carbon atom. Propane has three carbon atoms chained together. Butane has four carbon atoms chained together. Pentane has five, hexane has six, heptane has seven and octane has eight carbons chained together.

It turns out that heptane handles compression very poorly. Compress it just a little and it ignites spontaneously. Octane handles compression very well -- you can compress it a lot and nothing happens. Eighty-seven-octane gasoline is gasoline that contains 87-percent octane and 13-percent heptane (or some other combination of fuels that has the same performance of the 87/13 combination of octane/heptane). It spontaneously ignites at a given compression level, and can only be used in engines that do not exceed that compression ratio."
Why then does my GM manual suggest running the car on 93 Octane? When Chevrolet rated the car's performance at 400 hp, I 'd be surprised if they ran on 91 octane trucked in from California. 91 octane has to pull timing and hence reduce hp.
Reply
Old Jun 23, 2005 | 09:34 PM
  #17  
ricatthebeach's Avatar
ricatthebeach
Thread Starter
Drifting
10 Year Member
 
Joined: May 2005
Posts: 1,659
Likes: 0
From: Las Vegas Location: Earth
Default Source

Originally Posted by SpinMonster
Where do you get this stuff from?
www.jbsglownc5.net
Reply

Get notified of new replies

To Torco Octane Boost

Old Jun 23, 2005 | 09:35 PM
  #18  
ricatthebeach's Avatar
ricatthebeach
Thread Starter
Drifting
10 Year Member
 
Joined: May 2005
Posts: 1,659
Likes: 0
From: Las Vegas Location: Earth
Default Source

Originally Posted by ricatthebeach
www.jbsglownc5.net
www.jbsblownc5.net. Try some. It actually works!
Reply
Old Jun 23, 2005 | 10:01 PM
  #19  
haljensen's Avatar
haljensen
Race Director
Supporting Lifetime
 
Joined: Mar 2005
Posts: 10,399
Likes: 25
From: Austin Texas
Default

If you are running 91 Oct. on a hot day I'll bet your car is pulling timing via the knock sensors. You only hear spark knock when the computer has already pulled all the timing advance that it can.

Torco adds Octane rating but it's expensive. The last case I bought was $88 for 6 cans. 1 can (32 oz.) in 20 gallons of 93 Oct. will bring it to 97 Oct. Should extrapolate to 1 can in 20 gal. of 91 Oct. to 95 Oct. $15 a can for 20 gallons = 75 cents a gallon added cost. Makes sense only for dyno runs or race track use as an alternative to $5.00 a gallon lead free race fuel.

Another source; www.need4speedpower.com
Reply
Old Jun 23, 2005 | 11:36 PM
  #20  
iblumberg's Avatar
iblumberg
Advanced
 
Joined: Feb 2005
Posts: 83
Likes: 0
From: San Carlos CA
Default

I am not a chemist and have no experience with Torco. However, just doing some algebra, in order to raise the octane level of 20 gallons of gas from 91 to 93 by adding 1/2 gallon (32 oz) of stuff would require the additive to have the equivalent octane rating of 173. It seems difficult to believe that Torco or anything else really has that property.

Ira
Reply



All times are GMT -4. The time now is 08:56 PM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE