dang.. another 11 years of formal education down the drain..

Don't even need to take out the meter panel. Just unplug the speedo cable from the gearbox, stuff in an electric drill to the end of the speedo cable and run it at full speed. That will make your speedo 'teng piu'.

The car can go faster than the meter. That's not a problem since the speedlimiter has been removed. Remember JDM cars have a speedlimiter set at 180km/h, therefore the manufacturer does not see a point to put in a speedo that exceeds 180km/h.

It will not have the power to reach 6.5k rpm on 5th gear.

At 5th gear 4000RPM and 220km/h.. I call that a bullshit car... Mitsubishi does not have anything with that kind of gear ratio on 5th gear. In fact you can't get any engine with that kind of gear ratio into a Waja.

175km/h can be done on the Myvi. I was driving back from Ipoh yesterday and some Myvi tiong me at about 160km/h. I accelerate up to 170km/h and it was still there. Floored the pedal and then left him to smell smoke. So 170km/h for Myvi is possible (of course he was using my slipstream to help him).

Don't need to get dyno chart. I've heard a lot of kok and bull stories in my life and this is one of the biggest. Like the way they always say that they've experienced it themselves to make it more believable.

Any HP can be achieved but 0-150km/h in 6 seconds is not something that can be done easily, especially if it is on a front wheel drive car. Even the bugatti vegron's time from 0-160km/h is 5.5 seconds. Even most supercars struggle to do 0-160km/h in 6 seconds.

I drive a Subaru Impreza WRX.

That one can still tipu. Just calibrate it to higher speed. All RSMs allow you to calibrate the speedo since the voltage is not the same for all cars.

Which cut-off are you referring to? There is no cut-off for speed on the Savvy since it is not a requirement from JPJ.

If you are doing 175-180 at 5500rpm, at 6000 you'd be touching close to 200km/h. So the rev limiter is not a factor. The limiting factor is the Savvy's top speed should be it's lack of power and not electronic cut-off.

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Added on November 29, 2007, 8:09 pmNo, car manufacturer's do not limit the max speed due to safety reasons but more for regulatory reasons. Japanese manufacturers must (aka compulsory) limit JDM cars to 180km/h. European manufacturer's have a gentlemen's agreement that they will limit the car's top speed to 250km/h.

At 160km/h for the Ford Ranger, that is not cut off. That is the fastest it is built to go. Sorry dude.. that's the max and not limited by any OEM electronics.

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Added on November 29, 2007, 8:16 pm6200 is max which is limited by the ECU to prevent the engine from destroying itself. Actually, the redzone aka redline on the tachometer is your max. Anything inside means the engine is grinding itself to pieces. So your max is 6200 and not 8000. Tachometers always show more but look for the redline is where your max is.

This post has been edited by sleepwalker: Nov 29 2007, 08:16 PM

A piggyback will not remove the rev-cut. Electrical mods always come last after mechanical mods. No point changing the ECU when the engine cannot handle the extra rev. People increase the mechanical rev limitations in the engine before removing the electrical rev limitations in the ECU.

As for rev calculations, it's always rpm per km/h. So for example, if you are doing 6200rpm at 30-40km/h on first gear, at 7440rpm (20% more) you do 20% more speed, which is about 36-48km/h. Add another 10% rev to 8060rpm and you'd be doing 39-52km/h. The effect is linear.

Anyway, even if you remove the speed cut in the savvy without increasing more power, you'd still be stuck at 170km/h at 5500rpm as max power for the savvy is produced at 5500rpm.

Yes I do.

If I'm not mistaken.. this one too.. 180km/h with handbrake light still on.

That's great logic. The car is trying to tell you something is wrong with the brakes by lighting up the indicator and you go flat out trying to achieve top speed. No.. I think I'd go with the other explanation that the indicator is stuck in on.

Anyway, that photo does not look like it was taken with a good camera and if somebody is blasting down the highway at top speed, it would be shaking like the rest of the other photo. That photo is way to clear to be 180km/h on the road.

This post has been edited by sleepwalker: Dec 10 2008, 12:30 PM