brian potter

hi,
i have a sti ppp 02 model and is standard 305bhp, now all of my prevoius cars have had dump valves on, now this is were i need help-----
i'm looking for a dump valve that gives off the rally slag noise (chatter effect) what would you recommend and will fitting one make the tickover lumpy as it did on my evo1 & gti-r but not the evo6????
any advice would be great
thanks
chris

rooferman

iTrader: (6)

Rally cars dont have dump valves so you aint gonna get a chatter effect with a vta valve,the chatter is the wastegate opening/closing....

brian potter

ar ha thats why then (he he) well what seems to be the best suited dump valve for the scooby
cheers

Aztec Performance Ltd

iTrader: (234)

You'll not go wrong with a HKS SSQV if you're after a VTA.

Bob

XS-Home

The choice is yours whether you want to blow off or not That's all it is a bit of wind....

full_bore

I've currently got a HKS SSQ Blow off valve on my MY98 uk turbo and it won't give you the effect you're after. I have the same dilema and want a chatter noise but all I get with my HKS SSQ BOV is a quite high pitch chirp. If I feather the throttle off at low revs (around 3k) I get a slight chatter but that's about it. I've only ever heard a cosworth that sounds like what you and I are both after.

zesty

I have a forge vta on mine and that doesnt 'chatter', I wish it did though.

corradoboy

The best suited one is the recirculating one that's already fitted. If you want the silly noise and the potential risks to the engine that come with it, follow the other guys advice