External Wastegate

[IGOTASTi]

I'm looking to get an external wastegate for my STi. First what size should I go with (38mm or 44mm)?

Second who makes the best setup, and bang for the buck?

Thank you.

 

[finallymysti]

I can tell you DON'T get the cobb ewg setup. it doesn't mate up to the header well.

 

[IGOTASTi]

I can tell you DON'T get the cobb ewg setup. it doesn't mate up to the header well.

Really?

 

[finallymysti]

yes. I and two shops have tried to get it to seal and couldn't. then I called cobb (excellent customer service) and said I think it was miss-manufactured, they replaced it with one from a new batch. and I got a new set of headers incase mine were warped. guess what, still can't get it to stay sealed/leak free.

 

[IGOTASTi]

Wow.

Thanks for letting me know.

 

[IGOTASTi]

So, you've decided to become more ricer?

Put a trumpet tube on that rocket pipe of uselessness so it's even louder when it does nothing but make more noise.

My vote is stay internally gated :Fuji:

Not worth it?

 

[Grinder34]

i agree with fuji. sooo many better places to spend money.

 

[IGOTASTi]

i agree with fuji. sooo many better places to spend money.

Thanks for saving me the $$$.

I also thought I could pick up more HP.

I really love our community. It saves me from wasting money, and from making really dumb mistakes.

 

[Batmobile_Engage]

So, you've decided to become more ricer?

Put a trumpet tube on that rocket pipe of uselessness so it's even louder when it does nothing but make more noise.

My vote is stay internally gated :Fuji:

:rofl:

i agree with fuji. sooo many better places to spend money.

Carbon Fiber Driveshaft...hint, hint

 

[IGOTASTi]

Gonna do injectors instead, and turn up the boost.

 

[Batmobile_Engage]

Injectors are always a good idea. If you're ever going to 850cc or larger, I think I'd recommend a top feed conversion.
If I remember correctly, Lexi is still on the factory turbo, right? Be careful when tuning, don't try to run the VF39 to the
upper limit of it's operating range (by running lots of boost, 19 psi is a good limit).

 

[IGOTASTi]

I would rebuild the stock turbo with a billet wheel & some pnp. Considerably lighter than stock, and flows much more.

Top feeds, TGV deletes

Gains per dollar will be much better than an EWG. If you're worried about inconsistent boost, change to a manual boost controller and possibly change out the waste gate actuator arm for a higher spring pressure.

Thanks Fuji for the advice. I'm going to take that route you have suggested.

 

[Robert Viehweger]

I'm going to add some racing stripes and flame canister to my exhaust pipes. I saw this one guy say he got 80 whp out of it!

http://www.hotlicksexhaust.com/