cuinrearview
Red saw lover
Could it really be that simple?If you didn’t adjust the screws, your saw is running leaner due to the added oxygen. That’s why it runs better
Could it really be that simple?If you didn’t adjust the screws, your saw is running leaner due to the added oxygen. That’s why it runs better
Raising compression raises torque. Raising octane creates less power. Octane is a measurement of a fuel’s resistance to combust. Higher octane fuels burn slower creating less power in a chainsaw.
...Could it really be that simple?
Could it really be that simple?
Most guys think that if their saw runs faster on 95 octane, then 95 octane puts out more power. But it wasn’t an apples to apples comparison if that was the case. The 95 or 104 or 110 that they used was probably a racing fuel that had other additives in that made the power. It wasn’t the additional octane that created it. It’s actually a pretty simple test. Pick up some 87 octane fuel and run a dozen timed cuts. And then add a bottle of octane boost to the same batch of fuel and try it
Raising compression raises torque. Raising octane creates less power. Octane is a measurement of a fuel’s resistance to combust. Higher octane fuels burn slower creating less power in a chainsaw.
I believe most of that to be true. They also aren’t allowed on the road because there are no road taxes built into the sale priceYes I am aware of what octane does, but racing fuels are more the just higher/lower octane. They are blended with different combinations of additives be it higher or lower or the added or lack of them. That's why many are restricted to off road use only because the volume of fuels used are lower then the mass fuels that are run in everyday autos. There are plenty of low octane racing fuels that produce more power and octane rating alone is not always the mane factor. Pollution and fuel economy are not as much a concern with racing applications as they are with street cars. Racing fuels are of a higher quality because they use stricter guidelines and production volumes are lower.
Whereby increasing torque.Raising compression raises torque. Raising octane creates less power. Octane is a measurement of a fuel’s resistance to combust. Higher octane fuels burn slower creating less power in a chainsaw.
Hold on to your domes fellas...
You responded too quickly to have watched that vid.Im not arguing with it being inefficient to run higher octane with lowrr compression but its not the case in an engine with higher compression such as one with a gasket delete or shaved head.
What would be your choice to pep up a 357xp? One or the other. A 47mm big bore kit or a higher comp piston.
Joe
If i was the op i would start with a base gasket delete if his current deck height allows it.
Assuming he already has done a muffler mod, that is.
Apart from time, all it costs is some solder to check squish and some sealant.
If he swaps the piston or p&c he will need to check the new deck height anyway...
Then why is it when I run 105 in my stock saw can I bear down way more on a full cut in big wood and it not bog down to a stop as easy as it does on pump fuel?
Yes I am aware of what octane does, but racing fuels are more the just higher/lower octane. They are blended with different combinations of additives be it higher or lower or the added or lack of them. That's why many are restricted to off road use only because the volume of fuels used are lower then the mass fuels that are run in everyday autos. There are plenty of low octane racing fuels that produce more power and octane rating alone is not always the mane factor. Pollution and fuel economy are not as much a concern with racing applications as they are with street cars. Racing fuels are of a higher quality because they use stricter guidelines and production volumes are lower.
I believe most of that to be true. They also aren’t allowed on the road because there are no road taxes built into the sale price
I didnt but I doubt it was trying to disprove him. Editing videos of my own at momentYou responded too quickly to have watched that vid.
Lol.Whereby increasing torque.
Example being diesel vs gas.
Higher compression engines run higher octane fuels. Hence every performace application in modified engines.
The increased compression allows for higher octane fuels to burn faster and more efficiently increasing power.
That is why they make race engines higher compression and run higher octane fuels.
Ok boss you win.Lol.
High compression ratios require higher octane fuels to prevent preignition. The added compression and heat tries to ignite the fuel too soon, hence the term “spark knock”. Therefore they need higher octane to slow the burn. The power doesn’t come from the octane, it’s actually the opposite. And so is your entire theory on compression and octane
Lol.
High compression ratios require higher octane fuels to prevent preignition. The added compression and heat tries to ignite the fuel too soon, hence the term “spark knock”. Therefore they need higher octane to slow the burn. The power doesn’t come from the octane, it’s actually the opposite. And so is your entire theory on compression and octane
Love when peeps compare bikes and quads to saws. @Huskybill
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