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Installing A 38mm External Wastegate On A Gts25t

jUsT-dRiFt-iT
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jUsT-dRiFt-iT Enthusiast

jUsT-dRiFt-iT

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I want to install a 38mm external wastegate and screamer pipe on my GTS25t on the standard extractors. I have looked around on these forums and havnt been able to find any guides an i was wondering if anybody knew where there was one on these forums or anywhere else? Any help would be much appreciated, cheers.

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BOZ22N Grand Master

BOZ22N

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Dont waste your time unless you absolutly need it. And as for a screemer - im guessing you dont need your car on the road for too long.. they sound shiet on 25's any way

Hey i have one and it sounds sweet as, but i dont drive it on the street much.

Each there own. :)

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jUsT-dRiFt-iT Enthusiast

jUsT-dRiFt-iT

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why?

You wont be able to do this at home unless you have a die grinder, an oxy set and a tig welder

I have all those things as my dad is an engineer but just need instructions on hooking up all the lines, blocking/removing the internal etc..so nobody knows where there is any guides on this forum?

Edited by jUsT-dRiFt-iT
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r33_racer Grand Master

r33_racer

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no difference in the sound of a screamer...atleast none i can tell from a 20, 25 or 26 even on the rb30dets... Ive had ones on both 25 and 25/30's and ive heard em on 26/30's. unless my ears are playing up i reckon they all sound the same. Like a huge arse exhaust leak, but tough on the race track, its just lame when they spit flames and melt the steering rack boots haha.

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R31Nismoid Grand Master

R31Nismoid

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no difference in the sound of a screamer...atleast none i can tell from a 20, 25 or 26 even on the rb30dets... Ive had ones on both 25 and 25/30's and ive heard em on 26/30's. unless my ears are playing up i reckon they all sound the same. Like a huge arse exhaust leak, but tough on the race track, its just lame when they spit flames and melt the steering rack boots haha.

Every screamer will sound different depending on

Manifold

Gate size

Screamer exit pipe size/angle/position etc

Gate position on the manifold

etc etc.

But on a stocker turbo - pointless, even with the stock manifold i dont think there is a lot to gain

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mattymagoo22 Community Regular

mattymagoo22

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You need to disable your internal gate you could weld it shut or have something hold it shut from outside where its hooked up to the actuator. Tehn you to find a location in front of the turbo entry where exhaust gas can be made to bypass the turbo (hope you're good at welding cast iron as its nearly impossible) bolt on your external gate and screamer pipe, run manifold pressure to it and there you go!

man you're going to be going to a lot of trouble. it would be easier to buy an aftermarket manifold with the facility for an external gate and save yourself some brain damage.

hope this helped

Matt.

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jUsT-dRiFt-iT Enthusiast

jUsT-dRiFt-iT

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You need to disable your internal gate you could weld it shut or have something hold it shut from outside where its hooked up to the actuator. Tehn you to find a location in front of the turbo entry where exhaust gas can be made to bypass the turbo (hope you're good at welding cast iron as its nearly impossible) bolt on your external gate and screamer pipe, run manifold pressure to it and there you go!

man you're going to be going to a lot of trouble. it would be easier to buy an aftermarket manifold with the facility for an external gate and save yourself some brain damage.

hope this helped

Matt.

Yeah i think i mite just get some extractors ay it seems like it would be alot easier. If i get extractors with a place to bolt on the external what would i have to do then? Would i still have to find a place in front of the turbo entry to bypass the exhaust gas from the turbo or would the extractors take care of that?

Cheers.

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R31Nismoid Grand Master

R31Nismoid

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And hopefully the person that steals your car is screaming "FTP" out the window as he drives off with it.

Then you might get some respect when you actually need them, unfortunately they wont say "FHNH?" (fck who now huh?) as they are forced to respond to even the biggest morons

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jUsT-dRiFt-iT Enthusiast

jUsT-dRiFt-iT

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And hopefully the person that steals your car is screaming "FTP" out the window as he drives off with it.

Then you might get some respect when you actually need them, unfortunately they wont say "FHNH?" (fck who now huh?) as they are forced to respond to even the biggest morons

I have needed them on a couple of occacions and every time they have ended up turning everyting on me and my mates instead of the people that have auctually started the sh*t..the New Zealand law is pathetic, it protects the criminal more than it does the victim..and this is now why i believe FTP as i have only had bad experiences with them..

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