I know a few people that didnt perform routine maintanance on there GTP'* and SSEi'* and there SC bearings, ect have failed so they for some reason bought a smaller belt so they arent running their SC... do they still need to run premium fuel if the SC isnt being used?
I know they should fix the problem and run the SC...but i would just like this question answered

You will have lower pressures under WOT, but still be about the same at idle and cruise. I'm sure it will be OK, but I still suggest premium. You will get a bit more mileage to off set the extra cost.

If they didn't maintain the */C do you really think they will Care if they run 93 Octane ???

lolzz

i think you should be fine but i also noticed that my mileage suffered quite a bit when i used 87 once instead of 93

sometimes the higher heat from higher octane fuel can cause more damage the do good, i would say no */C run mid grade

higher octane doesn't produce more heat, it'* just a measure of how easily it will more or less self-ignite. if you bypass the */C, you're running on a whopping 8.5:1 compression, totally within the realm of ****-water 87 octane fuel, especially if dealing with stock spark settings.

I second...

Higher octane simply keeps the fuel more stable at higher compression until there is spark... aka avoids detonation.

Without higher compression, there is no need for high octane fuel.

If I understand correctly, the series 2 supercharger belt runs only the supercharger right? So why are they buying shorter belts? To run all the extra idler pulleys? What you have with no supercharger is a L36, that has lower compression, and a big air restriction from stopped supercharger rotors. Run regular.

it doesn't burn cooler than lower octane, it just take a higher temp to make it burn, it actually burns hotter. I believe it is that for every 5 octane points it takes another 100° to ignite the fuel

It burns hotter because the Temp to Detonate is higher.

"because the combustion chamber environment is much hotter"

CC temps are higher because of a few factors, like higher compression or boost, which requires more octane to prevent detonation.

if higher octane fuel did burn hotter, it would have more BTUs for a given volume/weight compared to 87, but it doesn't, i've actually seen SLIGHTLY lower BTU content for higher octane gasoline before.

"I believe it is that for every 5 octane points it takes another 100° to ignite the fuel"

this may be true, but consider this: the laws of thermodynamics state that the greater the temp difference between a fuel when being oxidized compared to the state it was in beforehand, the more energy is extracted.