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Nitrous vs. Propane

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Robes87GN

Bench Racing Hater
Joined
Aug 7, 2003
Messages
397
Big debate, which is better and why? I never even heard of propane injection till i joined this board, but it seems to work wonders. All my friends are "Yay, new smallblock for my camaro" kind of guys, and they dont couldnt tell me about this at all. Also... Nitrous, not Nawwwws. We may have turbos, but we aint rice.
 
No debate. They are totally different in the way they make power.

Propane is more similar to alcohol in the way it reacts inside the motor. In other words propane lets you run higher boost on pump gas, thus your power gained is from the additional boost.

Nitrous you cannot crank the boost up and spray on pump gas. You do this..kaboom.

Totally different.

No debate ;)
 
Even simpler,

Propane is simply raising the octane which allows you to add more boost/timing.

Nitrous is actually making more power itself (cooling and adding oxygen along with more fuel)

A good comparision would be adding an octane booster (if they actually worked) to the gas tank compared to adding nitro methane to the gas. If you don't change anything (and it was running good to begin with) when you increase the octane then you won't make any more power.
 
Gotcha, thanks for the help. Any advice on it for a budget tight kid looking for 10's in 2 years?
 
10 seconds and budgets.. dont mix...

HTH

If you want reliable, mid 11's is more reasonable..

alky will get you there, propain should, NOS will also but require race fuel.
 
Or NOS with Propane.. from an email I received last night.

The propane / nitrous on the Viper made an increase of 110
rwhp and 180 rwtq ..... the propane had 93 jets (two of them at 80 psi ) and
the n02 had two 36 jets. A single 36 nitrous jet with gasoline is usually
good for 44 hp.....flywhp I think. The a/f would drop about .5 at this tune
up (richer). Only one dyno pull and the numbers were 677 rwhp and 760 rwtq.

Not too shabby.
 
propane

Several years ago Turbo magazine(before riceafacation)converted a 300Z TT over to propane from gas as a fuel. Results:
100 or so to the tire from the cooling effect,increased octane,and ability to increase boost. I believe the cooling effect has a lot more to do with power on the propane kits than the higher octane The extra octane and fuel helps too but not as much.
One up side to propane-I can run my camp stove and fish cooker too! Not like the alky LOL.:D
 
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