[BerkTechnology]

Someone asked the question about octane boosters and race gas cost differences. What is very surprising is that the cost of regular 91pump + octane booster about the same as blending race gas and pump. This online calculator will also give you the total cost per tank. The delta is less than $10 per tank.

The thing is that I KNOW race fuel is 100 oct (or whatever oct #) whereas octane boosters are unknown.


A just to give you some facts & figures using a 135i w/ 14 gal tank as an example:

To get 93 octane using MS109: Dump 2 gallons of MS109, top off with 91 oct.
$3.50/gal 91 pump
$12.00/gal MS109 = $66.00/tank


To get 93 octane using 100 oct pump: Pump 3.3 gallons of 100 oct, top off with 91 oct.
$3.50/gal pump
$8.00/gal 100oct = $63.63/tank

Full tank of 91 pump + NOS Octane booster ($15/can) = $65/tank.
Full tank of 91 pump + Torco Octane booster ($30/can) = $80/tank.

Cost for a 5 gallon pail of VP MS109 fuel (105 octane) is about $60 or $12/gal. If you have a gas station with 100 octane at the pump it is usually around $8 per gallon.

For reference the 135i tank is 14 gallons and 335i tank is 16.1 gallons. Have fun doing your own calculations with the link below.
http://ranney.com/mjr/fuel_blend.html

The moral of the story? Use race gas to blend your own fuel so you are getting a known octane rating.

[themyst]

Good info, but why not just run methanol injection and get 100+ octane and additional cooling benefits for even less cost?

[DOUT]

Originally Posted by themyst

Good info, but why not just run methanol injection and get 100+ octane and additional cooling benefits for even less cost?

Not everyone has the balls to run a meth injection... I know i don't

[dzenno]

Originally Posted by themyst

Good info, but why not just run methanol injection and get 100+ octane and additional cooling benefits for even less cost?

Because meth should never be relied upon as fuel, period...one great example is possible cyl 6 meth starvation due to uneven mist/coolcharge distribution

[Penn999]

Originally Posted by dzenno

Because meth should never be relied upon as fuel, period...one great example is possible cyl 6 meth starvation due to uneven mist/coolcharge distribution

I used 10 gallons of sunoco 104 and the rest of the tank 93 shell v-power. According to the link above I ran 100 octane and got to 16psi autotuned on v4 maps. gained 18whp and 36wtq SAE over all pump gas. I liked it very much, and I look forward to doing some more testing on straight 104 with a higher max setting to 17-18psi or so. I will consider meth soon, I consider meth more of an IAT reducer than a fuel solution. I will address the issue as ambient temps begin to rise.

[Mikey_Bo0sts]

I understand your moral but where the fuck to get race fuel in the city ? lol and if I can get a drum where am I going to hold it in my apartment ? lol if I lived in NJ no doubt about that I'd have a drum of race gas in my garage

[shockin330i]

ms109 is 10.50 here :woot:

[Alchem]

Hehe I get 93 at the pump.

[RambleJ]

Originally Posted by BerkTechnology

Someone asked the question about octane boosters and race gas cost differences. What is very surprising is that the cost of regular 91pump + octane booster about the same as blending race gas and pump. This online calculator will also give you the total cost per tank. The delta is less than $10 per tank.

That does not sound correct. The octane boosters do not bring you up an entire octane rating, but actually will most likely bring you from 93 to 93.2 or 93.5. You have to read the fine print on the bottles.

[southlight]

Thread has been cleaned up. No more insults or infractions will follow. Thanks everybody.


Best regards,
south

[Mr. 5]

Originally Posted by southlight

Thread has been cleaned up. No more insults or infractions will follow. Thanks everybody.


Best regards,
south

So true.
If I see one more insult, infractions will be flying!

[BerkTechnology]

Originally Posted by RambleJ

That does not sound correct. The octane boosters do not bring you up an entire octane rating, but actually will most likely bring you from 93 to 93.2 or 93.5. You have to read the fine print on the bottles.

Depends on the octane booster you are running. That fine print is exactly what I'm talking about. You never really know what your actual octane rating is.

Torco actually gives you an octane blend chart but their booster is $30/can.



[IMG]I understand your moral but where the fuck to get race fuel in the city ? lol and if I can get a drum where am I going to hold it in my apartment ? lol if I lived in NJ no doubt about that I'd have a drum of race gas in my garage[/IMG]

In major metropolitan areas there are always a few scattered places that sell 100oct straight from the pump. There are 5 within a 25 mile radius where I live in Socal.

VP MS109 can be purchased at most speed shops in 5 gallon pails.

[Mr. 5]

What about Toluol?
Have you guys ever used straight Toluol to add to 91 octane?
Isn't octane booster just toluene (toluol)

[Mikey_Bo0sts]

Originally Posted by BerkTechnology

Depends on the octane booster you are running. That fine print is exactly what I'm talking about. You never really know what your actual octane rating is.

Torco actually gives you an octane blend chart but their booster is $30/can.



[IMG]I understand your moral but where the fuck to get race fuel in the city ? lol and if I can get a drum where am I going to hold it in my apartment ? lol if I lived in NJ no doubt about that I'd have a drum of race gas in my garage[/IMG]

In major metropolitan areas there are always a few scattered places that sell 100oct straight from the pump. There are 5 within a 25 mile radius where I live in Socal.

VP MS109 can be purchased at most speed shops in 5 gallon pails.

Actually you are right I have a spot selling meth and race gas couple of blocks away from me

[Mikey_Bo0sts]

Originally Posted by Mr. 5

What about Toluol?
Have you guys ever used straight Toluol to add to 91 octane?
Isn't octane booster just toluene (toluol)

You can buy xylene from home depot it works just as good

[BerkTechnology]

Originally Posted by Mr. 5

What about Toluol?
Have you guys ever used straight Toluol to add to 91 octane?
Isn't octane booster just toluene (toluol)

Man I just found an excellent article on exactly what we are talking about. Scientific data from an actual fuel laboratory.

Clifnotes:

-Toluene does raise octane
-Toluene is used by some "race gas" suppliers
-high quality race gas suppliers do NOT use Toulene in their fuel
-the internet homebrew of toulene & mineral spirits is crap
-straight toluene is better than the home brew but use with caution





http://www.europeancarweb.com/tech/0...ted/index.html

[StayRight]

I actually manage a petroleum laboratory in NJ. FYI, Toluene is already in gasoline at the pump.
We have the RON and MON engines and certify gasoline for most major oil companies in the NYH. Reading articles like this makes me want to test the additives just for shits and giggles. I'm really curious of the claims some of these manufacturers make, especially since I have personally tested many "octane enhancers" with disappointing results. Then again, since I totalled my 335 and bought a diesel it kind of took a back seat. What are the major fuel additives people are using? If I see them I might pick it up and see what the gains (or lack of) really are. I have seen NOS additive but never the Torco.

[Mr. 5]

Originally Posted by StayRight

I actually manage a petroleum laboratory in NJ. FYI, Toluene is already in gasoline at the pump.
We have the RON and MON engines and certify gasoline for most major oil companies in the NYH. Reading articles like this makes me want to test the additives just for shits and giggles. I'm really curious of the claims some of these manufacturers make, especially since I have personally tested many "octane enhancers" with disappointing results. Then again, since I totalled my 335 and bought a diesel it kind of took a back seat. What are the major fuel additives people are using? If I see them I might pick it up and see what the gains (or lack of) really are. I have seen NOS additive but never the Torco.

What about adding a gallon of it to 10 gallons of 91 octane?
I'd like to know if there's an equation somewhere to see how much octane toluol by itself will add any given octane of gas.

[BerkTechnology]

Originally Posted by Mr. 5

What about adding a gallon of it to 10 gallons of 91 octane?
I'd like to know if there's an equation somewhere to see how much octane toluol by itself will add any given octane of gas.

10 gal 91 oct + 1 gal 114 oct Toluene = 93.1 octane.

That link I posted above will calculate the blends for you. I used 11 gallon tank, 91 oct & 114 oct as my inputs. Scroll down and see what a 1 gal blend would give you.

To do it manually for 11 gallons:

(91x10) + (114x1) = 1024/11 = 93.09 oct

[BerkTechnology]

Originally Posted by StayRight

I actually manage a petroleum laboratory in NJ. FYI, Toluene is already in gasoline at the pump.
We have the RON and MON engines and certify gasoline for most major oil companies in the NYH. Reading articles like this makes me want to test the additives just for shits and giggles. I'm really curious of the claims some of these manufacturers make, especially since I have personally tested many "octane enhancers" with disappointing results. Then again, since I totalled my 335 and bought a diesel it kind of took a back seat. What are the major fuel additives people are using? If I see them I might pick it up and see what the gains (or lack of) really are. I have seen NOS additive but never the Torco.

Do it!! That would be awesome!

[Mr. 5]

Originally Posted by BerkTechnology

10 gal 91 oct + 1 gal 114 oct Toluene = 93.1 octane.

That link I posted above will calculate the blends for you. I used 11 gallon tank, 91 oct & 114 oct as my inputs. Scroll down and see what a 1 gal blend would give you.

To do it manually for 11 gallons:

(91x10) + (114x1) = 1024/11 = 93.09 oct

I didn't know that toluene was 114 octane though.
Sorry if you already said that.

[WinoGregorio]

Anyone else not buying the Torco claims? How can a 20:1 ratio with 91 pump gas yield 105? That would mean their product has a base AKI of almost 400! What?