Tested out some Octane booster...

[rtz]

Originally posted by turbo54
I am currently waiting on a 55 gallon drum of TEL (thats Tetra-Ethyl Lead) to clear customs.  I've imported it from China.

The cost of the drum was $700.  It should turn about 2500 gallons of 93 into 116.

Did you ever get it?  How well did it work out?

[Cld12pk2go]

Did the TEL ever get through?

[Schralper]

Something I haven't seen mentioned is the fact that "boosters" of any kind will affect your plugs readings. Deposits and coloring.
Kinda like when av-gas leaves a lil white soot on the tailpipe even though A/F is spot on.
BTW you can get toluene at Home Depot, etc.
An easy way to determine octane w/o a lab analysis is with a hydrometer to measure specific gravity of the solution. There are labs out there that can test the gas for you to find out if it really is the octane listed. Also engine oil analysis (relatively cheap, money well spent). Especially w/ some of the $$ I've seen in some of the engines on this site.



http://www.Schralper.com

[ΜΟΛΩΝ ΛΑΒΕ!]

Originally posted by Schralper
you can get toluene at Home Depot, etc.

No, I was just there 2 hours ago. They have denatured alcohol and "Xylol" (contains Xylene) but no Toluol or Toluene.

[1QUICK86]

Originally posted by TurboSN95
Has anyone bought C16 recently?  I'm wondering what the latest its selling for... I used to pay $7 or $8 a gallon.

at the track it is 7.50...but at turbo people it is 9.

[ΜΟΛΩΝ ΛΑΒΕ!]

Originally posted by 1QUICK86
at the track it is 7.50...but at turbo people it is 9.

Damn....I would spray alcohol before paying that much. I don't like having to pay $3.50 for AvGas.

[SlowVO]

its funny because i live out here in az also and my Glendale Community College teacher said that our both summer and winter gas sucks because our winter gas is last summers gas from the eastern states because the boiling points from the summer of the eastern states are the same for our winter gas.  So basically our gas sucks

[ΜΟΛΩΝ ΛΑΒΕ!]

Originally posted by SlowVO
our winter gas is last summers gas from the eastern states

I highly doubt that....NO ONE would be willing to store it for six months. With the price of gas where it is (and climbing, and consumption just as high as ever) I think supply stocks are less than 20 days old.

Tell him he's full of crap.

[ΜΟΛΩΝ ΛΑΒΕ!]

Originally posted by turbo54
I am currently waiting on a 55 gallon drum of TEL (thats Tetra-Ethyl Lead) to clear customs.  I've imported it from China.

Updates on that?????

[ΜΟΛΩΝ ΛΑΒΕ!]

Bringing this to the top again....

I am going to try 4 gallons of AvGas mixed with one gallon Xylol (Xylene) this weekend (80%/20%)

Since Xylene has a higher specific gravity than gasoline, I am going to go two jets  richer.

[BlackMagic94]

You understand that 100LL has a lower SG than pump fuel?

[dman]

Originally posted by BlackMagic94
You understand that 100LL has a lower SG than pump fuel?

i've been using 100LL now for awhile but would like to return to 93 with my alchy kit..

your saying 100LL isn't any better than 93?

[BlackMagic94]

No 100LL is a better fuel if used right.  But it burns leaner than pump gas due to its lower specific gravity rating, thats all.

[Trentk]

Originally posted by dman
i've been using 100LL now for awhile but would like to return to 93 with my alchy kit..

your saying 100LL isn't any better than 93?

it is definitely a lot better than 93.  I have pumped about 400 gallons of it through my car.

[ΜΟΛΩΝ ΛΑΒΕ!]

Originally posted by BlackMagic94
100LL burns leaner than pump gas due to its lower specific gravity rating.

I am already tuned a shade lean on 100LL, adding Xylene will actually make the mixture richer (what I actually need) so I am leaving the jetting alone.

from this page:

http://www.idavette.net/hib/fuel/page2.htm

 

Toluene and xylene have specific gravities higher than pump gas
 so the more of them you add, the leaner you need to calibrate the engine’s air/fuel ratio.

Once you calibrate for toluene- or xylene-spiked, DIY racing gas; don’t go back to running conventional gasoline until you recalibrate to a richer mixture or you’ll be burning pistons.

[Teeps]

I was going to  use a bunch of xylene instead of spending a bunch of doh on Torco accelerator.

Why do you guys say not to use more than 30% Xylene?

BTW, Xylene has a higher octane than Tolene.

You can buy xylene in hD or Lowes or a paint supply shop.

Whatever I pour in I plan to burn out at the track, but I'm sure if you leave the stuff un for normal driving, you'd get some soot, and deposits.

[ΜΟΛΩΝ ΛΑΒΕ!]

I have been running 80% AvGas and 20% Xylene with good results.

I was tuned a just a little bit lean on AvGas, and I heard that Xylene will richen the mixture a little, so I figured what the hell. Seems to work well.

[dman]

hate to dredge up old topics but I think this one needs to hang around.

any updates on the octane booster originally talked about in this thread?

[redvictor]

they sell tetra ethyl lead in a product called Tetraboost in the UK.Website is www.tetraboost.co.uk.I'm going to try some on the dyno.
Also we use a product called Powerpour which was developed for nitrous,superchargers and turbos on pump gas.
See that on www.webster-race-engineering.co.uk
Not sure if tetraboost is available for the USA but Powerpour may be.....
btw,i have used Toluene with 2 stages of nitrous on 93 pump and it's just paint thinners.Didn't make that much difference either...

[Fast Eddy]

http://www.kemcooil.com/products.php?cId=4
This company claims to have TEL for sale, never tried it but looks like a good deal.

[dman]

we picked up some VP 104GT unleaded from Sunoco yesterday for the dyno trip. That shit smells just like Acetone. In fact my exhaust smells like it too, not the usual "race gas" smell. It seems to work well as I was able to run 12psi of boost non-intercooled on the dyno without a hint of detonation!

[Silverback]

Since Xylene has a higher specific gravity than gasoline, I am going to go two jets  richer.

I am already tuned a shade lean on 100LL, adding Xylene will actually make the mixture richer (what I actually need) so I am leaving the jetting alone.

from this page:

http://www.idavette.net/hib/fuel/page2.htm

Um, you contradicted yourself… yes, a higher specific gravity will make it richer, so why would you change jets 2 sizes richer still?

[random-strike]

small town airport here.... avgas i believe its between 100-110 octane at any time... is cheaper than premium at the pump...

[Silverback]

I’ve been thinking about this some more… I’d love to see independent tests or some proof that the torco stuff does something besides mixes with the gas (IE, some sort of significant chemical reaction creating new compounds).  If it acts like every other octane additive that I’ve ever heard of it would have to have an octane rating of 216 in the can to live up to the claims that they’re making.

As far as 100LL- a lower specific gravity means that it weighs less per gallon, and that assuming it still runs at the same stoich that normal gas does, that 14.7:1 ratio is based on weights so you’d have to run more of it with the same ammount of air…  that is the case in real life also, as well as _I believe_ having slightly lower energy.

Also, be aware, it’s “low lead” not unleaded.  It will foul O2 sensors and cats quickly.  Not as quickly as say leaded 116, but it will happen, so you don’t want to be running this stuff consistenly unless you’re running open loop or carbed