Toluene as an OCT boost

[DraxeofDclan]

I lost the page refering to the use of toluene as an oct booster. Thought if I cant find it maybe it should be brought up again. I remember what I read but still want up to date comments on this issue. Im thinking of using a 1:5 ratio on 91, the best CA will give me @ the pump. From what I understand this should put the rating at 95....yes - no?

[DraxeofDclan]

And then I find it.......http://www.elektro.com/~audi/audi/toluene.html

[audiwop]

if you want to get an exact octane rating just do this formula. Just assume you have 9 gallons of 91oct and 5 gallons of Toluene (91*9)+(114*5)= 1389, then divide (1389/14gallons) this gives you a octane rating of 99.21oct

[ThirdStrike]

toluene is expensive. may as well buy race gas.

[audiwop]

^^^^ plus I heard it caused testicular cancer in lap rats "not joking about this either"

[DraxeofDclan]

Thanks for the formula!!! It seems a 1:5 ratio will raise it more than I thought. As for the price......http://www.icispricing.com/il_shared...SubPage138.asp Its only about $3.00 a gal. in bulk or $5.00 for one gallon at the hardware store.

[DraxeofDclan]

EVERYTHING causes cancer!!!

[ThirdStrike]

Thanks for the formula!!! It seems a 1:5 ratio will raise it more than I thought. As for the price......http://www.icispricing.com/il_shared...SubPage138.asp Its only about $3.00 a gal. in bulk or $5.00 for one gallon at the hardware store.

where the fuck is it $3/gallon?
all the paint stores want 5+

[SurferD]

^^^^ plus I heard it caused testicular cancer in lap rats "not joking about this either"

Don't want anything happening to my lap rat. hehehe

[SLC_S4]

EVERYTHING causes cancer!!!

Especially in the state of California

[b5s4tt]

i paid 12 for it at sherwin williams.

[DraxeofDclan]

Like I said, if you buy bulk(55gal drum) its about $3 gal.I guess Im lucky to have wholesale chemical suppliers here. I also said it was $5 a gal. at the hardware store. I think its just a matter of convenience....in my opinion its cheap and easy to fill my tank at the pump then add toluene to up the oct. Im no hard core racer, so you see how this could appeal to an occasional enthusiast.

[rouellettea4]

Don't know much about toulene, does it have anything in it thats harmful to the car? alternative to race fuel or a weak substitute?

[ThirdStrike]

i paid 12 for it at sherwin williams.

YAH i went there after work! what a rip

[EvilllEmpirE]

use an 8 to 1 to 9/1 ratio. You don't want to use more than 15% T mix as it is too dry. I used to run it all the time back in SoCal.....always 1 gallons of Toluene to every 8 gallons or so of 91. $5 is cheap...we used to buy in bulk and it was like $6 a gallon

[ThirdStrike]

use an 8 to 1 to 9/1 ratio. You don't want to use more than 15% T mix as it is too dry. I used to run it all the time back in SoCal.....always 1 gallons of Toluene to every 8 gallons or so of 91. $5 is cheap...we used to buy in bulk and it was like $6 a gallon

add a cap full of brake fluid for the dryness

[RolledMySTi]

add a cap full of brake fluid for the dryness

I've heard people say use Marvel Mystery Oil as well

[AWD87]

have people seen any longterm side-effects (on the car) from using this stuff?

[Allaidback]

Read this on another forum:

get xylene instead, no one cares how much you buy, it is 117 octane, contains only carbon and hydogen atoms, blends well with gasoline, and is mostly what is in auto part store octane boosters, plus some atf for lubrication and lurid dyes to make it look cool. since it is only C8H10, it won't hurt your cats or o2 sensors.

my local paint store sells it for $7/gallon in 5 gallon pails, and $3.87/gallon in 55 gallon drums with free delivery in the city limits.

55 gallons is doable if you get some like-minded souls together for a dyno day or at the drags and spilt it among yourselves. [$213/55 gallon drum]

at 70% 93 octane pumpgas and 30% xylene, you get 100 octane race fuel at a cost of $2.56/gallon assuming you pay $2/gallon for the pumpgas and $3.87/gallon for the xylene.

if you mix it 50-50, you get 103.5 octane at a cost of $2.94, using the costs as shown above. above this ratio you may want to add 4 or 8 ounces of atf for additional lubrication. running straight xylene is not recommended even if it is 117 octane for $3.87/gallon.

[Evilevo]

I wanna know where you are finding $2/gallon for 93!!!!!!

[Sleeeper X]

I wanna know where you are finding $2/gallon for 93!!!!!!

Well I don't know about 93 but I do know where to get E85 for 2.39.

How are things btw.

[Don Supreme]

Now that we have meth, no need for this old school trick........

[ThirdStrike]

Read this on another forum:

get xylene instead, no one cares how much you buy, it is 117 octane, contains only carbon and hydogen atoms, blends well with gasoline, and is mostly what is in auto part store octane boosters, plus some atf for lubrication and lurid dyes to make it look cool. since it is only C8H10, it won't hurt your cats or o2 sensors.

my local paint store sells it for $7/gallon in 5 gallon pails, and $3.87/gallon in 55 gallon drums with free delivery in the city limits.

55 gallons is doable if you get some like-minded souls together for a dyno day or at the drags and spilt it among yourselves. [$213/55 gallon drum]

at 70% 93 octane pumpgas and 30% xylene, you get 100 octane race fuel at a cost of $2.56/gallon assuming you pay $2/gallon for the pumpgas and $3.87/gallon for the xylene.

if you mix it 50-50, you get 103.5 octane at a cost of $2.94, using the costs as shown above. above this ratio you may want to add 4 or 8 ounces of atf for additional lubrication. running straight xylene is not recommended even if it is 117 octane for $3.87/gallon.

xylene is dryer than toulene... but yes can be used.
heres a good source of info on how to home brew race gas.
http://www.gnttype.org/techarea/misc/octanebooster.html
i dont suggest going for MTBE or Ethanol/methanol or even worse pure alcohol mixes without logging and seeing what your AFR's are doing before trying to use these mixes. wideband or fail!

[Evilevo]

MDS4. care to comment?

[Don Supreme]

Also, e85 --- is another better option.... requires tuning, but still better.

[ThirdStrike]

Also, e85 --- is another better option.... requires tuning, but still better.

dont make it sound simple. there were a couple threads on this.. e85 can become very dangerous with out drastic changes to your tune and possibly fueling.
http://www.audizine.com/forum/showth...&highlight=e85

[Evilevo]

that is why 60# injectors FTW

[Allaidback]

so it would be safe to add a 1:8 ratio without brake/trans fluid? When would you start adding fluid and how much? So it is not recommended to do a 50/50 mix to get 104 octane and run a race file?

[SACTOWNB5]

http://www.epa.gov/ttn/atw/hlthef/toluene.html

EPA's link to toluene health effects (human health risk assessments are what I do for a living :) )

[MacDaddy]

I tried toluene in my car, didn't seem to make a big difference in performance, but the car ran a little smoother.

[Evilevo]

I tried toluene in my car, didn't seem to make a big difference in performance, but the car ran a little smoother.

How much did you add?

[md s4]

MDS4. care to comment?

I have no idea what your talking about .. its not like I use t-sauce every weekend or anything ..

[Jayco88]

i paid 18 bucks for a gallon of the stuff.. added that to my half tank of 91oct, and never felt a difference... i hope it didn't damage my fuel lines or injectors or something like that.

[DraxeofDclan]

Would it be ok to run 93OCT chip setting after boosting our CA 91OCT pump fuel?

[md s4]

you need to add more than 1 gallon of T to a half tank of 91 to feel anything..

[Jayco88]

you need to add more than 1 gallon of T to a half tank of 91 to feel anything..

yeah, that i figured. but then it that would of been 36+ bucks for two gallons. by then it's just cheaper to fill up with 100oct

[Allaidback]

yeah, that i figured. but then it that would of been 36+ bucks for two gallons. by then it's just cheaper to fill up with 100oct

for real...sherwin williams wanted 12.99 for 32oz!

[md s4]

yeah, that i figured. but then it that would of been 36+ bucks for two gallons. by then it's just cheaper to fill up with 100oct

I pay $6 a gallon at sherwin williams for their 5 gallon can...$31.80 after taxes.... where do you pay $12 a gallon ??

[MacDaddy]

How much did you add?

I put in 1L to a full tank, and then 3L to the next full tank.

according to the wesbsites i looked at, that should be about the maximum and minumum amounts recommended to add to your fuel.

[Evilevo]

ask mds4 about what you should be doing. He has the fastest OTS APR stage 3 car i have ever seen ;)