gay question about turbo 'flutter'

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Originally Posted by drift student

4k miles ish........

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whaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
did ya have a BOV ? or
feck that was short time :eek::eek:

ah sure the turbo was 16years old...... no bov.

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Originally Posted by Greg

I don't know, I presume so because it was always running a dump valve before, and the car cuts out the odd time coming up to a junction which is what happens when you disconnect the recirc valve. It's a HPi filter one I think. How loud is loud? :)

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If your car is cutting out coming up to a junction sometimes, it means an air leak somewhere on those systems.. worth double checking everything dude ;)





FOR THE RECORD


Removing your dumpvalve/recirc valve/BOV/whatever will NOT have a negative effect on MOST turbos. Anything like T4 sized or less will be fine, the issues only come into play on bigger turbos where the blades are more susceptible to shear forces, whereas on smaller turbos the blades simply do not have enough surface area to get damaged.. This is fact peeps, end of :)

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Originally Posted by will_c

If your car is cutting out coming up to a junction sometimes, it means an air leak somewhere on those systems.. worth double checking everything

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That kind of makes sense and I'll explain why once I get to a laptop. Fuck typing it out on my phone.

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Originally Posted by Greg

I don't know, I presume so because it was always running a dump valve before, and the car cuts out the odd time coming up to a junction which is what happens when you disconnect the recirc valve. It's a HPi filter one I think. How loud is loud? :)

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must be aleak yeah , i never had that problem and the recirc is plugged out , never ever cuts out .. an i have hpi filter too ;)

happened me few times in the silvia , and that was down to a fucked silicone joiner on the intercooler..

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Originally Posted by Greg

That kind of makes sense and I'll explain why once I get to a laptop. Fuck typing it out on my phone.

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Right..... basically there is a vacuum pipe that is sitting there doing nothing and with it blocked off the car cuts out, idles lower, isn't as responsive off boost, and is ok on petrol. And with it open the car is much more responsive, doesn't cut out, idles higher, and drinks juice. Work that one out. :D

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Originally Posted by NIALL JZX

must be aleak yeah , i never had that problem and the recirc is plugged out , never ever cuts out .. an i have hpi filter too ;)

happened me few times in the silvia , and that was down to a fucked silicone joiner on the intercooler..

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Is yours mapped though? when mine was mapped it was perfect. Must have a route around your engine bay someday and see what is different. :)

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Originally Posted by Greg

Right..... basically there is a vacuum pipe that is sitting there doing nothing and with it blocked off the car cuts out, idles lower, isn't as responsive off boost, and is ok on petrol. And with it open the car is much more responsive, doesn't cut out, idles higher, and drinks juice. Work that one out. :D

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have you tried connecting it to a pipe that carries both boost and vacumn? can you trace where it goes to?

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Originally Posted by will_c

have you tried connecting it to a pipe that carries both boost and vacumn? can you trace where it goes to?

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I haven't, because I wouldn't know where to find one. It's got something to with the recirculating valve because it goes over to that area. I'll try find a connecter missing a pipe and stick it on that.

Pete, I think it could have something to do with back pressure.
Do you have a straight through on the car?
When I'm driving my car normally there's not much flutter but when I put my bung in it seems to be alot flutterier. It could be just that I can hear it more cause the car is quieter but I'm pretty sure the flutter is even longer when the bung is creating more back pressure. . . car runs like a bag of shit with it in though i might add.

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Originally Posted by NIALL JZX

same here , mine is grand with the last 18 months or that anyway without any hassle ..

it is savage loud :)

have u a decat in yours andrew ? they will automatically run higher boost if u have a decat ..

is there recirc system thing on the twin setup..?

@greg have u the recirc pluged out ? wat filter have u ? it should be loud ...

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Yeah i've a de-cat but also have many leaks and holes in my exhaust all along it and also possible leaking i/c pipes and vaccuum hoses etc. Wont know for sure what it's like til i've everything sorted, tightened up and replaced.. Haven't a notion if there's a recirc on it to be honest.. Anyone else know?