blowing white smoke at high RPM

go to a proper mechanic and get a "leak down test"

this will tell you where there is leaks in your engine and intake/exhaust .
Then get a "compression test" to tell you the condition of your piston rings and upper head.

Then work from there

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Originally Posted by sPoOnD_

kool guys..a few mechanics said it most likely to be the piston rings..anyone have a clue how much it cost to get em changed?..

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alot you need to get the pistons out to change the rings on them,if you know anything about engines you will understand this is a big $$$ labour job

blue smoke is oil burning, not white smoke......

vetec motors overfuel when switchover happens perhaps this would account for smoke??
i know my lude blows a bit at that point

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Originally Posted by claymore

AH did you miss post #13 where he said that a couple of mechanics confirmed what I and others have posted ...... worn PISTON RINGS which cause oil burning.

Judging of the "color" of smoke emitted by the exhaust system by amateurs is subjective at best. It just goes to show that the color of smoke is just one indication and relying other symptoms is more reliable

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and so do worn valve guides and seals

Put a Catch tank in, to see if you are getting blow by.

sounds like worn valve guide or steam seals. Leak down test will show this.

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Originally Posted by fatboyz39

sounds like worn valve guide or steam seals. Leak down test will show this.

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??? Really...

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Originally Posted by sPoOnD_

i was driving infront of my friend the other day, and was really pushing the car to abt 6000rpm - 7000rpm and he said i had alot of white smoke..anyone have a clue what might be wrong?

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Is the engine using oil?
How many KM's ?
Std ECU or otherwise?
Std Fuel pressure reg & pump or otherwise?
Is the PCV in good working order or is some other system fitted?

your the best vtecmachine!

im pretty sure its the headgasket :)

Have a mechanic do the leak test, check all your pistons are at right compression. Do you run ECU or AFC? Also your spark plugs are alright. Another is there is a possibility that the valve stain seal could be damaged. It's the seal that blocks out the air/oil when the pistons are working. You could alternatively try using thicker based engine oil, and see if the white smoke still comes. Most likely, is the pistons are leaking oil. check the compression.