High Octane Fuel
09-01-2005, 08:23 AM
#4
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there is really no benifits in running it though as our cars are fairly low compression.... they did a test on this show I was watching yesterday they ran a truck on a dyno and tuned it to it's optimum A/F levels (changing anything would lose power) and ran both regular and premium.. it had almost exactly the same HP and torque curve either way
If you get some high compression piston heads (hwarang piston heads from hp.com) and properly tune the car you'll see much better n/a gains than you would with our 8:1s though.
If you get some high compression piston heads (hwarang piston heads from hp.com) and properly tune the car you'll see much better n/a gains than you would with our 8:1s though.
09-01-2005, 09:10 AM
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As said, with proper tuning (which might include spark timing advance if you use higher octane gas) you could squeeze the last drops of your NA performance on a std. engine by advancing the spark.
However, if you raise compression, by changing the pistons (which is the expensive way, and maybe the better) or by changing the head gasket or even milling a little on your head (this last option isw not the best, and should be done only by experts and only a little).
I think REAL Korea has special gaskets to raise compression on NA engines, and as far as I remember they are not too expensive (a little less than turbo gasket)
However, if you raise compression, by changing the pistons (which is the expensive way, and maybe the better) or by changing the head gasket or even milling a little on your head (this last option isw not the best, and should be done only by experts and only a little).
I think REAL Korea has special gaskets to raise compression on NA engines, and as far as I remember they are not too expensive (a little less than turbo gasket)
09-01-2005, 09:12 AM
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QUOTE (Dmitry @ Sep 1 2005, 08:48 AM)
purpose of going to high octane is - to avoid detonation. That's is.
Detonation can be in result of high compression ratio or high boost level.
Detonation can be in result of high compression ratio or high boost level.
i know i was asking if HE in particular had reasons to run that...meanin im not sure what mods he has or if he was just asking
09-01-2005, 09:22 AM
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No, it won't hurt anything in your engine, at the most it will hurt your wallet...
But if you get a better ECU, then you could have some mods and take advantage of that extra octanes.
But if you get a better ECU, then you could have some mods and take advantage of that extra octanes.