ZXR 250 Air Filter

[backfruey]

Have a few questions 'bout the ZXR's air filter, which is sorta shaped like a top hat. Where would be best to purchase a free-flowing one from? Would there be any performnce gains?
Also, the air intakes, would it be stupid to try and enlarge them, y'know, to make the bike go faster?

[texmo]

Trying to make a 250cc bike go faster is like pissing in the wind.
Get a 600 if you want more speed.

[vtec]

Yeah agree with texmo. If you are determined and knowledgeable you can get small gains though. Not worth the effort though. And usually there is a cost somewhere else. Like a power loss in the mid-range for a gain in the upper.

Don't even think about changing the airflow characteristics if you aren't going to rejet the carburretors to suit. You'll probably just get a power loss, and make it way less rideable.

[qldzxr250a]

ive got a unifilter in mine. seemed to run a bit smoother than the orig. plus its re-usable just wash it then re-oil it.

all in all any gain will be minimal if any but i like to think it help

[R6_kid:Me]

by the air intakes i assume you mean the hoses? I enlarged mine to double the diameter and notice a massive increase in......... well nothing.

You want better power? Get the carbs cleaned, get a new original air filter, get the valves done, make sure that your chain is well lubed and tensioned correctly and that you are running the right gearing (no more than one or two teeth off standard at the back depending on your weight)

Then start saving your money for when you have your full.

[texmo]

Gareth the air intake hoses you speak of are there to cool down the regulator.
I got a can of carb cleaner but its shitand I am too lazy to clean mine by hand...

[backfruey]

It's not really so much for the power and speed gains, but making the power delivery alot smoother, possibly try and have it 'kick in' a little earlier.

[vtec]

Won't work. Free flowing the air intake will ruin your low rev and midrange power, with possibly a small gain at the top end (if you rejet). If you want the best midrange and low rev power. The only choice is to keep it stock. They design it to be as user friendly as possible straight from the factory.