There will be someone in here that wants to argue. i have argued in 2 different threads about how you should run what they recomend. Everyone else seems to think its a matter of being cheap or something. I think its funny really. There are alot of people on this forum that "think they know, but they have no idea."

HAHA

 

come on dthompson, you know everyone here is an expert, and there isnt possibly anything you could tell them that isnt either wrong or they already know. sometimes i wonder why people even ask questions if they wont accept an answer. like the n00bs who want to get a 1000rr as a first bike.

 

Your bike is more powerful. U.S. spec bikes are retarded (timing)

x

 

Where did you get the info that the US bikes are Retarded in timing as compared to the Australian version? I really want to find out bout this as I have done a few dyno runs and people are all saying that it is not possible for me to get those numbers??? But they are comparing to US model bikes. This is why I think that the two versions are running different maps and are producing different horsepower???

 

Ya, you better have reputable sources for that bombshell. I've found absolutely zero evidence that U.S. 1kRRs are tuned differently from other countries.

 

I've been running 87 octane in my '06 1KRR for about two tanks with absolutely no new noises or decreases in performance. I, like many others in this forum, have been trying to spread education to folks who believe that super is better including a link to a website that explains it and includes a dyno sheet showing that lower octane made better, more even power on their particular bike, but no one listens and instead decides to argue because surely they must know better. I'm thinking about doing a couple of dyno runs when I get up some money and compare 87 octane, 93 octane, and race gas (maybe 98 octane?) To get a difinitive answer for all the neysayers out there. I hate it when they ney-say...they're always ney-saying

 

I don't have any evidence that bikes are tuned differently in different countries. But I just came back from the UK where their minimum octane is 95, and goes up to 103 I believe? Now it may be just a different method of calculation. But there are variations of different motors, at least as far as Honda K-series are concerned that require the higher octane that I am under the impression, US soil does not permit. i.e. K20a2 versus K20a which is only a ~20bhp difference, which can be attributed to .5 more compression and advanced timing in the ECU. If someone knows differently, please speak up, but the circumstantial evidence suggests that there are different honda motors for different lands...

I am under the impression/belief at this point that US fuel is lower octane, hence they can not handle some of the higher andvanced timings that some motors are tuned for. I could very well be wrong, but haven't heard definitive proof either way at this point.

 

sorry to double post but I forgot my original question...

Say you put a power commander in tuned the maps for advanced timings to take advantage of a higher octane.

Is this something you could get power out of? Is it not true that you can tune for a higher octane without any major hardware changes?

We have a ECU flash for the 02-05 Civic Si which changes the requirements for 86 to 91 octane... Is this not an instance where higher octane should be used? So what everyone is saying is "There is no benefit to using higher octane when your hardware says otherwise"

 

Just advancing the timing with no engine modifications won't really net you anything except marginal power gains and a lot of extra heat and wear on the engine. I don't know what a K20a2 or K20a is exactly -- is it a bike engine? Bumping the compression .5 doesn't seem like 20hp but I guess it could be done.

 

the K-series motors, k20a2 k20a3 k20a etc... are the newest honda 4 cylinder auto motor series... the JDM motor is the K20a with slightly higher compression (not sure exactly off the top of my head the exact #s), cam profiles etc... some other things... they're ~20bhp more powerful, but also I assume advanced for higher octane gas.

that answers my question, advancing the timing for higher octane won't do much.