To Lead or Not to Lead

[The Itch]

I have one of my rarely REAL questions here… I searched but didn’t get what I’m looking for.:slug:

With my mods; SCT/Roe 93 octane tune, ROE throttle body, JMB CAI, Catch can, catless mids, Magnaflow, 170* thermostat, is running race fuel (110 and up)going to have a positive effect? Is it worth the additional $8.00 per gallon??? I know when I mixed (50/50) 112 with 93 octane on Panama City Beach (after almost running out of gas) my truck ran really smooth and hardly gurgled when I let off the accelerator. I couldn’t tell you if it bumped my times as I and everyone else was doing 400ft burnouts on that track.
Is using a higher octane a waste if I’m running a 93 octane tune?:dontknow:

Does the lead have any negative impact on our motors in the long ~or~ short term? (I am using mechanical o2 sims.):dontknow:
Are there benefits to our engines in using leaded fuel?:dontknow:

What is a good % mix of fuels? (i.e. 50/50, 20/80 etc):dontknow:

I’m sure there are a FEW opinions here. I’m more interested in experience than theory.
Thanks buddies and budettes...:rock: :rock: :rock:

 

[Django]

From what I've been told, leaded gas isn't good for it....

I asked about it once, myself....

But, I'm no expert.....

D

 

[mr. anderson]

yeap, leaded fuel kills 02 sensors, fast.

 

[rottenronnie]

Using 110 octane on a 93 tune is similar to dialing timing back, and it will make less power.

 

[SilvrSRT10]

I didn't even know you could still get leaded fuel. Thought it was outlawed.

 

[TNVIPER]

Yep..as stated the lead will take out your O2 sensors....and you are probably losing power using the higher octane on the 93 tune......get a second tune from Roe for 100 or 105 unleaded gas....you will be surprised how much stronger it will pull....your mods almost match mine and I have used both 100 unleaded & 110 leaded and have separate tunes for them..both made a big difference with a tune just for each..

 

[The Itch]

So only use the higher octane with the proper tune… Got it. :rock:

Now how about the effects of lead in our engines? :dontknow:
Have there been any problems as D has mentioned?
I'm running sims so I won't have an issue with the O2 sensors...???:dontknow:

 

[mr. anderson]

you should still have the pre cat 02's. and if you have a wideband then you have a 3rd 02 sensor.

 

[TNVIPER]

The front O2 sensors have to be in place or the engine would run like poop....That is the main problem with leaded gas but it also leaves more deposits in the engine...stick with unleaded race gas..

 

[The Itch]

stick with unleaded race gas..

Probably will... It's just been kinda hard to find.

 

[TheSickness]

Probably will... It's just been kinda hard to find.

2 words Taco Bell

 

[The Itch]

2 words Taco Bell

Is that leaded or unleaded???:dontknow:
My little RMA brudda...(Reformed Milk Addict):dontknow:


I quit Taco Bell the first time I changed a diaper...
There is no difference in the visual experiance...uke:

 

[TheSickness]

Is that leaded or unleaded???:dontknow:
My little RMA brudda...(Reformed Milk Addict):dontknow:


I quit Taco Bell the first time I changed a diaper...
There is no difference in the visual experiance...uke:

and the taste is quite similar as well :burnout:

 

[The Itch]

and the taste is quite similar as well :burnout:

You know... Now that you mention it...

 

[mr. anderson]

make your own.

toulene and xylene are your friend:


http://www.gnttype.org/techarea/misc/octanebooster.html

toulene can be purchase at your local paint stores.

 

[The Itch]

make your own.

toulene and xylene are your friend:


http://www.gnttype.org/techarea/misc/octanebooster.html

toulene can be purchase at your local paint stores.

COOOOL info.
Thanks!

 

[TNVIPER]

Be careful making your own..I was going to that a couple years ago until I read some articles about the effects of some of the ingredents....research it carefully..

 

[The Itch]

Be careful making your own..I was going to that a couple years ago until I read some articles about the effects of some of the ingredents....research it carefully..

If you are talking about health, I am familiar with the carcinogens involved. Toulene was used while I was in the Airforce. It, among other chemicals, has been blamed for alot of issues including lung cancer.

 

[TNVIPER]

If you are talking about health, I am familiar with the carcinogens involved. Toulene was used while I was in the Airforce. It, among other chemicals, has been blamed for alot of issues including lung cancer.

Health is an issue but I was referring to issues related to the truck...cant remember what they were but whatever it was I decided against mixing my own..

 

[The Itch]

Health is an issue but I was referring to issues related to the truck...cant remember what they were but whatever it was I decided against mixing my own..

I'm still reading but...:marchmellow: :marchmellow: :marchmellow:

Toluene can be used as an octane booster in gasoline fuels used in internal combustion engines. Toluene at 86% by volume fueled all the turbo Formula 1 teams in the 1980s, first pioneered by the Honda team. The remaining 14% was a "filler" of n-heptane, to reduce the octane to meet Formula 1 fuel restrictions. Toluene at 100% can be used as a fuel for both two-stroke and four-stroke engines; however, due to the density of the fuel and other factors, the fuel does not vaporize easily unless preheated to 70 degrees celsius (Honda accomplished this in their Formula 1 cars by routing the fuel lines through the muffler system to heat the fuel). Toluene also poses similar problems as alcohol fuels, as it eats through standard rubber fuel lines and has no lubricating properties as standard gasoline does, which can break down fuel pumps and cause upper cylinder bore wear.