The very first thing you do is a Seafoam treatment to eliminate carbon in the combustion chambers and on the valves. This is a major cause of detonation in the LS engines. Then, see if you still have detonation/ping.

 

Let me rephrase this in a way people can understand.

First off mrm1149 IS correct. The % mixed in does play a key roll.

The octane value of it has less to do with Xylene/Toluene's lack of "lubricity" and over all purity of the chemical at hand.

I have first hand had issues with using BOTH as an additive, no matter how well of a job I did filtering, transfering, and mixing the stuff.

Once I switched away from using Toluene/Xylene, and began just mixing race/pump gas. I never had another issue, ever. Please keep in mind in BOTH aspects, I was achieving a blend of 94.5 Octane.

Should I begin to get into what health risks, AND costs over using Toluene/Xylene, over race gas brings up as well?

Trust me, it is safer, cheaper, & easier, to blend race/pump gas.

 

Not if you are talking sane real world octane levels.

I've never seen the "lubricity" argument proved. I do agree that buying race gas from a pump should provide you with cleaner fuel. Unfortunately, there are no sources near enough to make it practical for me.

Starting with 93 octane gasoline, it takes VERY little Toulene to get to 94.5.

It's simply not true, these chemicals are components of gasoline. They are no more dangerous than gasoline. You don't want to be touching it or breathing it. I wouldn't want to be touching or breathing Torco either ...

Safer? Maybe. Cheaper? I don't think so. Easier? If you get your race fuel from a pump, yes.

 

*sigh* Look I'm not going to agrue with you to prove who is right or wrong. You've got your methods I've got mine. I know from my own experience what will work, and what CAN cause all hell to break loose.

Lets face facts, were not really discussing real world octane levels. If we were we wouldn't be home brewing "gas" to over come issues. Starting with 93, it would take very little 100 octane as well.
In MY neck of the woods, Toluene is $11.99 a gallon. 100 Octane Gas is $4.98.

Secondly, have you looked at the hazards that Toluene and Xylene present, at concetrations OVER what is federally regulated allowed levels in gasoline?
Amoco Toluene MSDS
Amoco Xylene MSDS

As for Lubricity. The facts are there, look hard enough and you will find them. Otherwise why do you think engineers had to change part compounds, to over come the removal of lead (which was used as a lube).

Also we don't have 93 in CA, 91 is as good as it gets unless your a lucky SOB like me and have a 100 pump within a few miles

 

I'm not going to read thru all the posts here, but I will tell you this, DO NOT PUT OCTAINE BOOST IN YOUR CAR, I just got back from the track, bone stock 08 LS3, npp, z51 and the car ran slow as sheet!!!, 13.2, 13.04 & I finally got a decent 12.73 @ 114.60 run in before the night ended
I put 3 bottles in the tank never again........those 3 times, I had decent launches w/2.1/2.2 60'ft times

 

It depends on what You refer to as "Octane Booster"

If your talking about the stuff you buy at Pep Boys, then yes, its a waste of time.
If your talking about something like Torco, your 100% incorrect.
Take a step into the F/I section and ask ANY of the tuners. Every one of them swear by it. Not only that, but it has not 1, but 2 independant lab tests proving its abilities. I was one of the 2 that had 32oz of Torco sent to the lab that tests for Chevron.
According to the lab, it was the ONLY concentrate they have ever tested that actually exceeded the manufacturer claims.

Heres a link to one of the lab tests.

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

Also, remember, you can bolt on a S/C and go slower. Theres MANY factors that come into play.

 

Can you say SMACKDOWN?

http://forums.corvetteforum.com/show....php?t=1835044

 

Torco's claims are..well they are claims and CANT be backed up.They claim by using 1 qt of their unleaded product it will raise 91 pump octane to well over 100. Ummmm...read on

You wanna tell me how a tested product by Chevron and Saybolt on calibrated ISO certified octane engines test out with a final 96.5 r+m/2 octane number is going to raise pump r+m/2 91 octane to over 100 using 1 qt of the product? It ain't possible period! It may work for some people making their engines run better and make more power, but it is no way raising octane to over 100 as they claim. Sure it will raise the octane some and will make more power on the dyno as claimed BUT the 100+ octane number claims are false.

Lets mentally do this and say we put 50/50 of Torco and pump 91 together. Test results have shown Torco's r+m/2 rating is 96.5. So lets add 96.5 and 91 pump gas and we get 187.5. We divide 187.5 by 2 and we get 93.75 octane. Yea, Id love to see how they claim it can raise it to well over 100 octane...This ain't rocket science here people. Do the math.....

I also tested it on octane engines as well and I even mixed it with pump gas and retested several times (see this thread on my testing) http://forums.corvetteforum.com/show....php?t=1801944. When pigs fly this stuff will make 100+ octane when mixed with 91 pump gas. Don't believe everything you read on a can or on a website.

You want racing gas and high octane you buy racing gas... simple as that.

 

Not to step into a heated debate, Im talking about this crap!!!!!!!

 

 

100 percent

 

Sometimes its not just the octane.
I had WOT pinging on my stock 01. Then I added a predator tune and Honker CAI. I could see on the handheld the -14 degrees of Knock Retard. I waited till the tank was empty and put in 5 gallons of 100 octane unleaded to test. Still had -12 KR. Started adding fuel to the 4K - 6K area and at +12% more fuel, the KR went away. So in my case it was just running lean.
After about every 4 months or so, I start getting KR again, but now the seafoam takes care of that because its an 01 oil burner putting carbon on my pistons.

So it can be many things besides just octane.

 

Well,
Your opinions are just that "Opinions". My claims are 100% FACT.
Without going into a 5 minute dissertation, The owner of Kenne Bell superchargers "Jim Bell" got into the same debate with me. I claimed it worked, and he claimed it didnt. In the end, we sent it to the lab, and shortly thereafter got the results. The results were soo conclusive, that Jim called me at 10 o'clock at night laughing. Saying that never in his 37 years of racing, and building some of the fastest cars in the world, has he ever seen a product work like that.
Again, this isnt some bu!!**** opinion. This is a FACT that can be backed by Lab results, not timeslips.

Also, read/understand the lab test results. Its NOT well over 100 octane. It takes 91.8 gas and ups it to 96.5.
So your talking smack about something that you have ZERO knowledge about.. There just random internet opinions...

 

Yea, I agree with you, I wouldnt use this stuff either..

 

man I started something here did I not. i also think I lost some et and mile an hour but if is probably form not being tuned right with the t-body and tanks for all of the advice and help i will try the mixes at the track in the future.

 

Damn troublemaker .....

Many tracks offer UNLEADED 100 octane, and as briann510, and some others, have pointed out, mixing that with your Premium fuel will definately raise the octane of the fuel, far better than ANY of the "additive" products on the market.

I think someone already posted the formula ... but just in case ... here's how to calculate your "new" octane ... assuming an 18 gallon fuel load made up of 10 gallons of 91 octane and 8 gallons of 100 octane .....

(10 x 91) + (8 x 100)
__________________

18

In words ... (10 x 91) is 910

PLUS

(8 x 100) is 800

910 + 800 equals 1710

1710 divided by 18 equals 95 octane

So if you want to run 95 octane just plan your fuel to arrive at the track with about 10 gallons of 91 octane Premium, fill to the top with 100 octane ... and go BURN RUBBER !!!!