View Full Version : horsepower on fuel
09-12-2001, 08:51 PM
Does anyone know how much more horsepower a person gains by running a racing fuel like turbo blue or cam2 over pumped gas? What kind of compression ratio is required to "have to" run off of performance fuel? I'm running 11 to 1 compression can I get by off of pumped gas. I have tried before but the valves rattle badly, can I get by with a octane boost or such? Any help on performance fuels will help.
09-13-2001, 02:01 AM
You have to adjust your timing to prevent knocking. Retarding your timing will help prevent knocking and allow you to run pump gas.
09-13-2001, 02:05 AM
Going to the race track and using the higher octane gas. Try doing a run, record the time. And then advance the timing. Record the time. Keep on doing it until your performance falls. Then you can use one of those internet calculators to find out your HP.
09-13-2001, 10:31 AM
I used an octane booster when I hit the 16 sec range. It helps the fuel burn better which in return creates hp. I haven't been to the track in approx. 3 months looking to go again real soon! Expecting mid 16s to low 16s. The last time I ran at the track I filled up with High Grade and dumped an Octane boost in. Its almost like using race fuel.
09-13-2001, 05:27 PM
higher octane burns slower not better.
the octane rateing is actually a knock rateing.
the higher the compression the faster the fuel burns, so if you run higher compression than 10:1 & you need premium or racing fuel depending if you get Knock. If you use 87 octane and dont get knock on a stock motor then you dont need 92 premium. The extra unburned fuel will cause a rich burn condition and lower your HP and ET.
octane boost says it raises the octane 7 point but they leave out the "on 80 octane fuel"
It doesnt do squat to 92 octane.
100 octane $4 a gallon
with fuel INJ the PCM can adjust the timing and uses a knock sensor to control the timing to prevent knock.
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