MS 109 vs C16
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wow!! At 2 bars, that was what C16 is made for, but I seems many tuners think MS109 will be fine. IMO, if you wanna use C16, just DON'T let it sit for any extended period of time.
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C16 is far "safer" fuel. MS109 is only 105 octane compared to C16 which is 117 octane.
I personally prefer unleaded fuels over leaded, but at maximum boost levels...C16 or Torco 116 will definitely provide much greater protection than 105 octane MS109. It's pretty simple; the higher octane you run, the less chance you have of detonation occurring.
I'm almost 100% sure that if you try to run MS109 at 1.7 BAR or higher, you're anti-knock sensors will kick in....or worse.....
I personally prefer unleaded fuels over leaded, but at maximum boost levels...C16 or Torco 116 will definitely provide much greater protection than 105 octane MS109. It's pretty simple; the higher octane you run, the less chance you have of detonation occurring.
I'm almost 100% sure that if you try to run MS109 at 1.7 BAR or higher, you're anti-knock sensors will kick in....or worse.....
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Both Todd and Tym run and recommend running C16 for high boost applications...
I gave my opinion in the 2nd post of this thread....
While tuning on a load bearing dyno, I have been able to archive MBT timing on 109 with out detonation. This means I was able to run more ignition timing then would actually increase power with out knocking.....
C16 has his place, this I agree....in my opinion, there are very few cars in this community that will really benefit from it.
While tuning on a load bearing dyno, I have been able to archive MBT timing on 109 with out detonation. This means I was able to run more ignition timing then would actually increase power with out knocking.....
C16 has his place, this I agree....in my opinion, there are very few cars in this community that will really benefit from it.
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Thanks for your response, I will ask Todd what he thinks I should do.
Robert
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I haven't needed to change my plugs since I never run more than 2 tanks of leaded in a row. If I use leaded fuel, I switch back to unleaded after every 2 tanks of leaded to clean the plugs.
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My car does not need that much octane..LOL..., but I ran Blown gas drag motors for years and nothing I ever tried was as good as C16, 9.25-1 static with 34-36 psi of boost, zero issues, a great fuel to be sure.
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Turbo engines LOVE the C16 - especially these 996TT purr like a kitten. With that said though, I always make sure to run at least a tank or two of unleaded through as soon as possible after using to clean things out. No harm done even with cats and O2 sensors.
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In in most if not call cases I have been able to archive MBT before reaching detonation on both c16 and 109. This tells me that for most applications ms 109 is as good of a choose as c16.
I reserve c16 for very high boost, nitrous or VERY high horsepower stock motor applications.
For what its worth, my personal car runs over 2 bar of boost very regularly on ms 109.
I reserve c16 for very high boost, nitrous or VERY high horsepower stock motor applications.
For what its worth, my personal car runs over 2 bar of boost very regularly on ms 109.
Agreed proven on my evo same power was derived with no detonation.
S
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EXACTLY!!!
