+- Madison Motorsports (https://forum.mmsports.org)
+-- Forum: Madison Motorsports (https://forum.mmsports.org/forumdisplay.php?fid=3)
+--- Forum: Lounge (https://forum.mmsports.org/forumdisplay.php?fid=6)
+--- Thread: snow! (/showthread.php?tid=5152)
- WRXtranceformed - 12-09-2006
I can understand what you're saying Chris...the only point that I was trying to make is that it seems silly to have to run anything higher than 93 octane in a naturally aspirated car. If it's tuned correctly, in my mind the only major things you should be worrying about engine wise on a race car is oil pressure, oil distribution to the entire engine, and whether or not the engine has a good enough cooling system.
The whole point of running race gas, especially leaded, is to give you a much broader range to play with the timing curves and turn up the boost whilst avoiding detonation, as you already know. It's to make a lot more power safely, which simply doesn't happen with NA engines. You'd be lucky to see a 10whp difference with C16 on a tuned NA car.
I'm sure somebody will come up with a link to prove me wrong hah, but I can't see ever wasting the money for super high octane fuel in an NA car. I certainly wouldn't waste the money on a tune for it. Once you throw in a power adder of course, like nitrous or a blower, then all of that goes out the window.
- white_2kgt - 12-10-2006
Dude, there are TONS of reasons to run a N/A car on high octane unleaded. Not just boosted cars benifit from it. Now you have to have the engine setup to take advantage from it and if you do so you will see a LOT more than 10rwhp. Higher octane fuel also helps runs the engine cooler.
- Apoc - 12-10-2006
If I wasn't connect 28.8k I would find that webpage you speak of.
Let's just say that "non-stock" NA engines sometimes require a bit higher octane as insurance.
- WRXtranceformed - 12-10-2006
white_2kgt Wrote:Dude, there are TONS of reasons to run a N/A car on high octane unleaded. Not just boosted cars benifit from it. Now you have to have the engine setup to take advantage from it and if you do so you will see a LOT more than 10rwhp. Higher octane fuel also helps runs the engine cooler.
One of my bosses has a Corvette with a custom solid roller 434, Dart Little M block, Brodix T1 M2 heads 227, crower 6.0" rods, JE forged flat top pistons, Eagle stroker crank, Lunati solid roller cam 252/252 .582/.582 lift miniram, bunch of other custom shit and he and I had the same discussion. That motor right now is putting down close to 500whp naturally aspirated with an inadequate intake. He and I had this conversation and when he goes to the track, he doesn't bother using 100+ octane. He says the gains are not worth wasting the money for it. He has a good tstat and a solid radiator and says it's fine.
I mean, are you guys seeing people with street-driven cars and motor setups using high octane and having it make that big of a difference? I could see if, like Chad said, you have a motor that is set up to run high octane fuel all the time and that's all you put in it.
Let me put it this way, on your streetable NA car, would you spend an extra 300-450 bucks for a 100+octane tune if you just had minor bolt ons, or even typical headwork / cams etc.? At that point, why not just run a "conservative" nitrous tune instead? :lol:
- white_2kgt - 12-10-2006
WRXtranceformed Wrote:white_2kgt Wrote:Dude, there are TONS of reasons to run a N/A car on high octane unleaded. Not just boosted cars benifit from it. Now you have to have the engine setup to take advantage from it and if you do so you will see a LOT more than 10rwhp. Higher octane fuel also helps runs the engine cooler.
One of my bosses has a Corvette with a custom solid roller 434, Dart Little M block, Brodix T1 M2 heads 227, crower 6.0" rods, JE forged flat top pistons, Eagle stroker crank, Lunati solid roller cam 252/252 .582/.582 lift miniram, bunch of other custom shit and he and I had the same discussion. That motor right now is putting down close to 500whp naturally aspirated with an inadequate intake. He and I had this conversation and when he goes to the track, he doesn't bother using 100+ octane. He says the gains are not worth wasting the money for it. He has a good tstat and a solid radiator and says it's fine.
I mean, are you guys seeing people with street-driven cars and motor setups using high octane and having it make that big of a difference? I could see if, like Chad said, you have a motor that is set up to run high octane fuel all the time and that's all you put in it.
Let me put it this way, on your streetable NA car, would you spend an extra 300-450 bucks for a 100+octane tune if you just had minor bolt ons, or even typical headwork / cams etc.? At that point, why not just run a "conservative" nitrous tune instead? :lol:
I'm only saying that you need to run the gas the car is setup for. If the motor was built to use pump gas, then of course you wouldnt see any gains from just an octane change, you wouldn't see any gains on a turbo car either (unless it has knock sensors and you are setting them off on pump gas all the time), but, if the motor was built with race gas in mind, Cam2, Turbo blue, whatever, then it will make more power than if it were built for pump gas, plain and simple. I know 100s of people that can ONLY run 100+ in their N/A motor b/c that is what it was built for.
- Mike - 12-10-2006
oh my god... why is this still being discussed? nobody gives a shit, everybody is right, you all win!
- Jeff - 12-10-2006
Mike Wrote:oh my god... why is this still being discussed? nobody gives a shit, everybody is right, you all win!
Is there any way you can make this post automatically every time a thread gets more then ten posts long? :lol: