sva retest 8.00am tomoz.Failed on 103db at 4250 rpm 2l pinto.Can we have a quick show of hands.....need some sleep,is that rpm 4250 too high my reference says 3500rpm

I seem to recall that it is 3/4 of the speed at which maximum power occurs.

4250 is 3/4 of 5666 RPM

Buy a Rev limiter


PS.. dont know the answer, but will find out on Tuesday! (SVA for me)

IIRC, you have to state on your SVA application form, the RPM at which max power occurs. It is this figure which then determines the noise test at 3/4 of the declared RPM.

Does that make sense?

Phil

Thanks guys....goodnight

My engine revs to about 6000 (1.4 k-series) and Peak power is 4500.
So they should test at 3375 max?

Depends what you declared on the SVA form Martin - should have read my article more carefully!!!

westf27, good luck with the re-test tomorrow.

Phil

And from me!

Steve

[Edited on 8-5-06 by Hellfire]

thanks phil sorted all the fiddlys only noise level iffy.fitted a db killer hope it works.might ask him to qualify his rpm value if it fails as it appears my peak power rpm is 5500....3/4 of which is 4125

quote:

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Originally posted by russbost
Depends what you declared on the SVA form Martin - should have read my article more carefully!!!

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My tester ignored what i put on the form. Tested at 3,900 rpm but i was well within (approx 93dB).

Good luck - sorry this reply was too late to help you.

quote:

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Originally posted by westf27
thanks phil sorted all the fiddlys only noise level iffy.fitted a db killer hope it works.might ask him to qualify his rpm value if it fails as it appears my peak power rpm is 5500....3/4 of which is 4125

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