Td04 help?

[Dave]

There is no right or wrong answer to this.. your wastegate is there to stop rediculously high exhaust manifold pressures (which in turn causes high boost/operspool) but you'll only get rediculously high EMP's on certain turbos (the smaller wheeled td04 for example) but if its a large hotsided td04 you'll have no issues, it'll be laggy, and flow alot of gas out in which case running no wastegate is absolutely fine because its big enough to keep EMP's lower. If its a blower thats fully spooled sub 3k, you'll probably have issues running no wastegate if your spanking 6k, and more than likely be changing gear because of this, because there is less power there... with a wastegate it'll free up the top end, thats what its for. Most of the time its not really noticable and either way it'll go like stink whatever you do, so its down to you to decide when your turbo is spooling and if a wastegate is needed. Get an EMP gauge and find out I've seen 120+ psi EMP before, causing spikes of 65psi boost, but it went like it was a nasp because of no flow (closed vnt vanes) but they are just an extension of wastegate theory.