Newbie wanting info on external wastegate

[andy91145]

I was looking to get a decat and screamer pipe but after reading into then there seems to be a lot of hate for them so I would just like to know what sort of work is involved fitting and setting up an external wastegate, currently everything is stock but I am planning full exhaust, manifold and fmic. Where do they bolt to and what sort of spring would I need when I eventually get round to doing it.

Thanks in advance wanting to learn as much as possible as I'm new to the Starlet scene

[AdamB]

You'll need an external wastegate compatible manifold, decat comes with most kits you buy.

The spring depends on what boost you plan on running, but if you have a boost controller then you can't set boost lower than the spring pressure.

[rasslenny]

based on what u said Adam does that mean you can set the boost controller to more than the spring pressure??
i always thought it was up to the spring pressure and thats what has stopped me from going external cuz i didnt want after all of that to have to go find a spring for 1.5 bar

if i am wrong this makes me very happy as its one less thing to purchase if i go that rout

[Danb]

based on what u said Adam does that mean you can set the boost controller to more than the spring pressure??

i always thought it was up to the spring pressure and thats what has stopped me from going external cuz i didnt want after all of that to have to go find a spring for 1.5 bar

if i am wrong this makes me very happy as its one less thing to purchase if i go that rout

Yeah as Adam said, spring pressure dictates the lowest boost pressure you will run, you will then use a boost controller to increase the boost accordingly.

hope this helps

[rasslenny]

Yeah as Adam said, spring pressure dictates the lowest boost pressure you will run, you will then use a boost controller to increase the boost accordingly.

hope this helps

absolutely astonishing lol

[andy91145]

You'll need an external wastegate compatible manifold, decat comes with most kits you buy.

The spring depends on what boost you plan on running, but if you have a boost controller then you can't set boost lower than the spring pressure.

Where abouts would I get a manifold that is compatible?

[daniel_g]

Zisco, WEPR, Race-Tech.

Can personally vouch for the Zisco EWG kit.

[AdamB]

As above, one of the traders on here will be able to help you out.

I've also got a Zisco kit, albeit for a GT28 though.

[Danb]

Also tuning developments - their kit is the only one that allows both screamer to atmosphere and it plumbed back in.

[AdamB]

Also tuning developments - their kit is the only one that allows both screamer to atmosphere and it plumbed back in.

Wepr have just done their own one as well, I see on facebook yesterday I think it was.

[Danb]

Wepr have just done their own one as well, I see on facebook yesterday I think it was.

Ah have they now... Ill have to have a butchers

[daniel_g]

My Zisco TD04 kit had the EWG pipe re routed back into the decat, so no crazy screamer action.