got de-cat system.

MY95

got HKS mushroom.

i need a dump valve also....does it matter which one i get? or can i get any cheap one like a baileys?

 

You may want to check this thread out before getting the Baileys http://www.scoobynet.co.uk/bbs/threa...hreadid=126283 , it might save some problems latter down the moddong line.

 

had a collins and it does the same thing, ain't there two types of dumpe valve? atmospheric is one and one of them cause the problem and the other doesn't??

 

There's 2 types, and both of them will cause problems if they're not made well - to air or back into the system shouldn't make any difference - if they leak, they leak

 

so best to go for better makes i.e HKS?

 

I've got a baileys evo dv on a MY97 with full decat. Can't say I've had any problems with it. I'm also running at 15psi WOT in 5th.

Get the odd pop out the exhaust but nothing more, even after some VERY spirited driving.

Do I need a induction kit to make it better? or is the Dawes making it run too lean? (like I said no problems with drivability at the moment + it goes like the proverbial off a shovel )

Matt

 

I think it's much easier to get flames, etc. with a 'harder' dump valve (such as the HKS) - the overfuelling will be more obvious the more sudden the changes are. With the HKS I get bangs having only driven normally & having a performace-cat in the way - only bangs as the cat gets rid of most of the fun - but without it, it was more rare to NOT get pops on gear changes, throttle release & the other usuals.
Seems to be harder with some of the other makes - or at least from the number of 'my car's not' that there are. The extra cost does make a difference here, I think!