tx77015ls1

I work at a airport and can get 100LL (Low Lead) gas for cheep.

How would this work in my 2000 Z28?


Thanks, jason

sprayjunkie

Your O2 sensors aint gonna like it after a while...

Ericbigmac83

iTrader: (19)

im more curious about why you want to do it and what good you think it will do you??

StoleIt

iTrader: (3)

Hmm not sure actually, might work. And I spilled some of that blue crap on me today doing my preflight. Stupid wind.

Quick1998Z28

iTrader: (1)

you do realize that higher octane does not mean more HP. You want an insta-speed chemical additive, get nitrous. Running leaded gas in your car will wreck your O2 sensors, making your car run worse, and "cheap" it's still double the price of 93 which is around $2.30 a gallon. Chances are you will also have way too much unburned fuel coming out the tail pipe, which means the computer will think you are urnning rich, and the car will run like ***

ROCNDAV

iTrader: (100)

It will ruin your O2 sensors and plug up your cats. I used to run it in my IROC for the short term that I ran it without cats. It didnt make my car run like ***, but I never did any before and after dyno testing either. Is it really more expensive than 93 octane? Back in the 80's it was cheaper (and untaxed) IIRC.

darom

iTrader: (2)

Off topic: 91 octane in CA is over $3/gallon. How the hell do they explain hig gas prices now? Beginning of the spring?

Av-gas at the local airport is over $6/gallon. The only benefit of running leaded high octane av-gas, of course, is if you have a high compression engine (used to have 11:1 on my 67 with cast iron heads). But mine didn't have any oxygen sensors nor cats to plug up.

I can buy some gas from you (if you have it cheap) to put in my 67 (I will bump the ignition timing more). :-)

2000badbird

iTrader: (5)

Yes it will destroy ho2's and cats, In my s-10 i have a 11.5 to 1 355 We put 458hp and 485ftlbs on 93. We filled up the fuel cell on vp 112 we added +3 of timing and made 9 more hp than on 93 so there will be some sort of gain. Thats with no carb adjustments. Now with that bein said this is a low tech old school small block no pcm, knock sensors, or ho2s or cats so it would take an exprienced tuner to make the adjustments with our late model efi engines to see the power gains adding timing and possibly adding more fuel while keeping th a/f in check. So in a nutshell its not a practical way of making more power without making tuning adjustments .

olaferickson

There is a gas station down the street from me in Brockton Ma. that has 101 octane race gas for $7.99 a gallon. Is there any point in using that? I know I have to run at least 93 to keep the knock sensors happy but is 101 any better?

MM2000Z

i also can get 100LL from work...my ? is can i mix it with 93 and be safe...or better yet mix it half and half with 87 and bump the octane up to around 93 so it wont ping? I always wondered that..I dump it in my plow truck whenever i get a chance though, Usually mixing it half/half with 87.

BriancWS6

iTrader: (18)

So many people have a mis-understanding of what higher octane fuel does. The higher the octane is the more resistant to pre-ignition it is, or the slower its burns. If your not getting detonation with 91, or 93, then you won't see any benefit from running a higher octane fuel. The most power is made with the lowest octane that doesnt give you detonation. Leaded fuel kills your O2s in a hurry, so if you have an application that requires higher than 93 pump gas, then find some unleaded fuel to run.

styoung

iTrader: (4)

i have heard somewhere not sure if it true or not but avation fuel has different aditives in it, and that it isnt good for your car. the aditives are for the alitude its used, thats why at take off the mixture in small single engine planes is very rich, but than again there is a home built plane that uses a ford model A engine or a corvair engine in it, thats all i know, or i think i know if that makes any sence

ICRAZY6

iTrader: (68)

Yes there are aditives in aviation grade fuels. Now you can run aviation fuel in diesal vehicals. But JP-8 or Jet-A's not going to work well in you car.

Pro52R

iTrader: (15)

High Ocatne fuel is good when you have raised compression...to keep from detonation.


Also w/ higher ocatane fuel you can turn up the boost on a boosted application and make better numbers...IE..less detonation



Thats the nice thing about diesel..theres one grade that can makes all sorts of crazy power

DwayneZ28

i tried it in my old LT1 car.... could not tell any difference.

greysteel_M6

iTrader: (5)

Unless your running a cat-less system stay the f-away from leaded gas.

crazboy99

i know JP-8 is like diesel...we put it in things that require diesel at work...if that was the case with the 100LL it wont work with a gasoline powered engine...id test it out on something that is cheaper...like a lawnmower or something before you put it in your car...better to screw up a $200 engine then one that costs a couple thousand...me personally wouldnt do it...if you want race gas...get race gas

ICRAZY6

iTrader: (68)

Funny thing is on our Chinook Helicopters we can run gas if we had to. It would lack performance but we would still be able to fly them. There would also be a huge inspection once we landed and would have to drop the fuel cells for new ones and replace other parts of the fuel system.

Big_D

just do it! not too many times.. itll be fun.. i promise

tx77015ls1

a turbine engine can run on almost any combustible liquid, i bet the lead would leave deposits on the inside of the engine