bishopzx12
Zone Head
Posts: 517
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posted September 27, 2007 08:50 AM
Toluene
Hey guys i was wonderign have any of you guys tried this as an octane booster. Also if you have did you ever try it will running nitrous. His is an alternative to buying race fuel for thos ehigh prices. You can get about a 5 gallon bucket i think for about 10-20 bucks and mix it with your regular gas to increase your octane points. I think Toluene is rated at about 114. I am new to this and have only tried it in a car but since a bike in a smaller internal combustion engine i figure it woudl work the same. Any comments. What do you guys think.
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1996 ZX7R
1999 ZX9R
1999 ZX11
2000 ZX12R 1270
2002 GSXR 1000 "I was Drunk"
2003 ZX12R 1375
2006 ZX14
2012 ZX14R
  
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jw
Novice Class
Posts: 81
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posted September 27, 2007 09:09 AM
 Edited By: jw on 27 Sep 2007 10:09
Won't get you near race fuel.
Maybe 4-5 extra points and less improvement with better (higher octane) fuels.
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Ojref
Expert Class
Posts: 336
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posted September 27, 2007 09:12 AM
Edited By: Ojref on 27 Sep 2007 10:22
The short answer is yes you can. The long answer is, while toluene will increase your RMS/2 rating, the BTU's per measured amount of fuel is lower than race formulated fuels. Gasoline/Toluene mix has wee little more specific power output than standard pump fuel, but not as much as a race formulated fuel of the same octane rating.
Raising the octane level of a fuel does not increase the energy output of a fuel. If you want to increase compression or increase timing to achieve more power output , going to a higher octane fuel with a slower burn rate will do this. If you want more power without doing the latter, going to a formulated race fuel like MR9, which is rated about 87 octane RMS/2 , would provide a dyno proven power increase. It has a substantially higher power density than pump fuel.
A lot of people fall into the old oil company marketing crap or tales of higher octane = more power. You want to run the lowest octane fuel you can without encountering pre-ignition or detonation. I've found after the Brock's SMEG upgrade and PCIII I can run 87 octane without detonation, as long as the bike doesn't get extremely heat soaked, then it will knock a little when lugged - but this is in 95F Houston heat, under extreme conditions. Most people can run 89 on a totaly stock bike without issue.
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2006 Kawasaki ZX-14 Ninja, Red now with mo' Brock's in my lyfe
1991 Yamaha Vmax - Because I need a mule to carry the manhood
2002 Ford Lightning - Ford GT Aluminum block engined, 802HP 911TQ now WhippleCharged
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dutchzx14
Expert Class
Posts: 213
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posted September 27, 2007 09:48 AM
Here in holland, regular fuel has octane 91, premium is 98.. and in germany you have formula shell with octane 100. the latest will also increase your hp with 3 ps.. (dyno proven on a zx10r). In England they tested regular, premium, and formula shell on a subaru wrx sti. diverence between the regular and formula shell was 20 ps
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raband
Expert Class
Posts: 121
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posted September 27, 2007 03:30 PM
quote:
Here in holland, regular fuel has octane 91, premium is 98.. and in germany you have formula shell with octane 100. the latest will also increase your hp with 3 ps.. (dyno proven on a zx10r). In England they tested regular, premium, and formula shell on a subaru wrx sti. diverence between the regular and formula shell was 20 ps
They use a different scale in the U.S. - their regular 85?? would be the equivelent of the 91 regular. Seems to be a 5-7 point diff between their scale and ours (Australia uses the higher scale too)
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