propane vs. racing fuel

[thumpin pumpkin]

can anyone tell me the octane rating of propane, or how it compares to racing gas, 110 or 117 octane. which is capable of making the most power. is propane even rated in octane or is it btu's
thanks nick

 

[730-LP]

Propane is 120 octane rated at 90 btu's,gas 100 btu's, diesel 140btu's per gallon.John Deere raised compression from 6.11 to 1 on gas to 8 to 1 on LP to make up for the lose in btu's.It never gets old or stale like gas.

 

[Anonymous-0]

i pulled from 1959 till 1980. The tractors had cow poop on them. It was pure fun. When the mods came, I QUIT.

 

[Anonymous-0]

Hey Nick, About all the racing fuel is 110 octane, I was always told that LP was around 120

 

[Anonymous-0]

I bet you cried like that every time you got beat.

It's best for the sport when a puss like you quits.

 

[Anonymous-0]

there is also "hot "propane out there which has a advantage my opinion.

 

[buickanddeere]

LP vapour diplaces more air in the intake manifold than gasoline or alcohol. This somewhat limits LP HP vs. liquid fuel HP.

 

[guido]

Hello tumpin pumpkin,
Here are some BTU values per 1 US gallon.
Diesel 130.000 BTU'S at (LHV 36 API gravity)
Gasoline 115.400 BTU'S (LHV)
Methanol 56.600 BTU'S
Ethanol 75.700 BTU'S
Propane 86.650 BTU'S, 1 US gallon = 4.25 Lb.
Octane rating for propane about 110.

Guido.

 

[louis110]

The guy said from 1959 to 1980. Tractors with cow poop on them. He's right.
I'd very much like to get into tractor pulling, but I can't shell out big bucks for all the parts. Don't yell at him. He pulled for 20 years, he has plenty of experience under his belt. He picked the right time to get out.