chaffe

Hi, looking for a bit of advice please, im having to run an external gate due to my turbo having no internal gate. The actuator on my gate has two control air ports, am i right in thinking i can run it conventionally with one port (the one closest to the manifold) and use a bleed valve to adjust the boost limit, or pre load the spring more. And i suppose the other question would be if i was going to use the top port to balance the pressure, how do i go about its actuation? is it purley electronic, or is there a mechanical way of controlling it?
I also plan on running a screamer set up, just how load are they? im thinking it can also be silenced if its too load? Thanks in advance, chaffe.

chaffe

Anyone familiar with these? i will mess about when its running, but i wondered if anyone has any hard and fast rules.

chaffe

bump

Big Will_

As a rule if there are two ports on an external wastegate the top one is to hold it shut and the bottom one (nearest where the wastegate connects to the manifold) is to open it.

If you are running mechanical boost control then it is just the bottom one you want to connect to your pressure source with your boost control in the middle.

I'd only recommend using the top port in conjunction with more sophisticated electronic boost control.

Screamer pipes - unsilenced are f**king loud! Pretty much a no-no for track days unless you're only measured on static noise tests with a high limit such as 105dB etc.

chaffe

cheers, so its as i thought, just the same as a normal wastegate if you use the bottom port. Thanks for the reply