Torco Octane Boost
Intermediate
Joined: Nov 2003
Posts: 37
Likes: 0
From: NY
Originally Posted by ricatthebeach
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.
I used 100 oct. one time and it was like tossing $ in the garbage. Didnt do a damn thing.
Intermediate
Joined: Nov 2003
Posts: 37
Likes: 0
From: NY
Originally Posted by WEEZEL
I'm curious as to whether the engine computers can actually "sense" any higher octane. Don't know the answer to this question. Does the engine somehow sense the higher octane and advance timing or is it simply designed to pull timing when a knock/ping occurs? I guess my question is: has anybody objectively proven any power gains/timing advances etc.. with octane additives in normally aspirated engines? Thanks for the info.
Race Director
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Originally Posted by 13Tommy
key word was "suggest". 93 oct. suggested BUT NOT REQUIRED. Really if your running 91 oct. and not getting any detonation, you shouldnt be loosing any HP therefore higher oct. is a waste of money.
I used 100 oct. one time and it was like tossing $ in the garbage. Didnt do a damn thing.
I used 100 oct. one time and it was like tossing $ in the garbage. Didnt do a damn thing.
Not sure how you drive your car, But I like the originator of this post like to put our foot into it!!!
We only have 91 octane gas her in CA. On a relatively warm day after a bit of aggresive driving, I can assure you the computor has switched to the lower octane table, hence your timing curve is way down and now you are running with less HP.
Torco, or any competent means of raising your octane level, will not give a stock C6 more power, it will just allow it to maintain the higher timing table, which in turn allows the car to run at optimal levels.
JB
Race Director
Joined: Aug 1999
Posts: 15,466
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From: GARDENA Ca, State Of Konfusion
St. Jude Donor '05
Originally Posted by jbsblownc5
Not sure how you drive your car, But I like the originator of this post like to put our foot into it!!!
We only have 91 octane gas her in CA. On a relatively warm day after a bit of aggresive driving, I can assure you the computor has switched to the lower octane table, hence your timing curve is way down and now you are running with less HP.
Torco, or any competent means of raising your octane level, will not give a stock C6 more power, it will just allow it to maintain the higher timing table, which in turn allows the car to run at optimal levels.
JB
We only have 91 octane gas her in CA. On a relatively warm day after a bit of aggresive driving, I can assure you the computor has switched to the lower octane table, hence your timing curve is way down and now you are running with less HP.
Torco, or any competent means of raising your octane level, will not give a stock C6 more power, it will just allow it to maintain the higher timing table, which in turn allows the car to run at optimal levels.
JB
Originally Posted by jimman
I went in half on a 5 gallon can of it and still have some left you can have, just come get it.
Team Owner
Joined: Feb 2000
Posts: 53,491
Likes: 77
From: Arizona
Anyone have dyno graphs to show any boost in HP with Torco in the C6?
I can only get 91 octane at my gas station. How much Torco, and at what price would it take to turn my typical fillup of 16 gallons to 93 octane?
There is an another outlet that sells racing fuel, maybe 100 octane, I should take their price/gallon and compare...
I can only get 91 octane at my gas station. How much Torco, and at what price would it take to turn my typical fillup of 16 gallons to 93 octane?
There is an another outlet that sells racing fuel, maybe 100 octane, I should take their price/gallon and compare...
Intermediate
Joined: Nov 2003
Posts: 37
Likes: 0
From: NY
Originally Posted by jbsblownc5
Not sure how you drive your car, But I like the originator of this post like to put our foot into it!!!
We only have 91 octane gas her in CA. On a relatively warm day after a bit of aggresive driving, I can assure you the computor has switched to the lower octane table, hence your timing curve is way down and now you are running with less HP.
Torco, or any competent means of raising your octane level, will not give a stock C6 more power, it will just allow it to maintain the higher timing table, which in turn allows the car to run at optimal levels.
JB
We only have 91 octane gas her in CA. On a relatively warm day after a bit of aggresive driving, I can assure you the computor has switched to the lower octane table, hence your timing curve is way down and now you are running with less HP.
Torco, or any competent means of raising your octane level, will not give a stock C6 more power, it will just allow it to maintain the higher timing table, which in turn allows the car to run at optimal levels.
JB
Race Director
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Originally Posted by 13Tommy
well only if the comp. senses detonation. If it dosent, the timing will not change. The motors are not required to use 93. If you would loose power with anything less then the motor would required the 93. I can see you would need the higher if you had the car tuned with the most timing advance possible. But stock you dont need it. Like I said before, I tried 100 oct. and it made ZERO difference.
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Race Director
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Originally Posted by Sandra Bigwoode
MMT, a Canadien fuel additive has a metallic component in it and it will hurt your cats and plugs.
See: http://www.canadiandriver.com/articles/jk/040310.htm
Your 'race gas' smell at the exhaust is likely from the cats being trashed by Torco's MMT additive... Your plug colors are proof beyond a doubt.
See: http://www.canadiandriver.com/articles/jk/040310.htm
Your 'race gas' smell at the exhaust is likely from the cats being trashed by Torco's MMT additive... Your plug colors are proof beyond a doubt.
I don't know exactly what is in Torco, even if it has a bit of MMT, I've run the same plugs for very extended periods with no ill effects.
As far as a race gas smell... Torco is race fuel concentrate, hence the the race fuel smell.
Just keep on using your paint thinner, and I as well as many others will keep using Torco.
Later Woody, MUCH later....
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Originally Posted by Shinobi'sZ
No my friend you must have been a rush or we both could have been in a rush...me typing and you reading. I should have explained what 9# and 16# means and the relationship of boost and hp.
I was comparing the runs I did on 100 and 91 octane at 16# and 9# respectively a couple of months ago at A&A and then at A&As party. Except both on 91 and Torco. The weather was a lot different during the party..and I was only down a little on power with both runs. The AFR was the same and Zero KR. So I account for the weather change (it was hot..I am still peeling) knocking down the power a little.
So you don't have to go back an re read my long thread. The 9# was 650hp and the 16# was 850hp. I have 2 tunes..one for 91 octane (9#) and one for 100 octane (16#) or I can now say with 91+Torco. My regular 9# tune is with 91 octane and with that I make 650hp. I just had Torco in the tank at the time of the low boost run @ A&As party, because we did a Hi Boost run prior to the low boost run, so I needed some Torco in the tank.
I was comparing the runs I did on 100 and 91 octane at 16# and 9# respectively a couple of months ago at A&A and then at A&As party. Except both on 91 and Torco. The weather was a lot different during the party..and I was only down a little on power with both runs. The AFR was the same and Zero KR. So I account for the weather change (it was hot..I am still peeling) knocking down the power a little.
So you don't have to go back an re read my long thread. The 9# was 650hp and the 16# was 850hp. I have 2 tunes..one for 91 octane (9#) and one for 100 octane (16#) or I can now say with 91+Torco. My regular 9# tune is with 91 octane and with that I make 650hp. I just had Torco in the tank at the time of the low boost run @ A&As party, because we did a Hi Boost run prior to the low boost run, so I needed some Torco in the tank.
Race Director
Joined: Nov 2000
Posts: 11,221
Likes: 899
From: CA
2017 C5 of the Year Finalist
St. Jude Donor '08
Originally Posted by shurite44
I still don't get it. I completely understand the boost aspect (at least I think I do), but how did going from 870-850 HP prove it had a positive effect on HP. Sorry maybe I just missed something too.
I believe what he is saying, is that the difference in HP was due to weather conditions and a very poor air quality in the dyno room, exasperated by many cars going on back to back. It was very warm that day, and although SAE does correct for many things it can't turn bad air into good.
His 16# tune was done with 100 octane race gas. We mixed in 2 cans of Torco with an almost full tank of 91 octane, and turned up the boost to 16#s. He got zero KR at WOT. This shows that the Torco/91 octane mix was able to do the same job as 100 octane gas.
I hope this made it more clear for you.
JB
