Does race gas cause slow spool up?

[3.8vsix]

Does anyone know if this is true compared to pump gas. It seems I can tell a differance. Just wandering

 

[WHEEZER]

Never heard of that Travis. Howdy from Lenoir area.

 

[VadersV6]

The higher the octane, the slower the burn rate. But, by the time the gas has reached the turbine, its already a hot, spent gas with little energy left (if the engine is doing its job). Now its just a matter of the heat/pressure spinning the turbine. Im sure EGT's vary a bit from pump gas to race gas, but to what degree, I have no idea.

 

[Bescurred]

Yes... you need to adjust boost and fuel pressure according to whatever tuning tool you use IE..02Millivolts or wideband #'s. Justing adding high octane wont do a thing unless you tune the car with it.

 

[GNVYUS 1]

Higher octane fuel will run the car a little fater all around. I see it all the time on my Turbo Talon, the scanmaster will lean out the days I run 93 and fatten up in all the trims when I have the 50/50 with 110 unleaded.

Very possible you were on the edge of running fat already down low and now you are over the edge with the race gas, check it out.

 

[bison]

If anything the higher octanne gas will have a positive impact on the spool rate for a given timing number. More energy is put in the exhaust with the slower burn rate.