New Turbo Compressor Housing Adds 40hp? Subaru STi tuned to 500hp | Edge Autosport

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This 2012 Subaru WRX STi has been through a bit of a rollercoaster on our dyno, putting on this new BorgWarner SX-E 7163 turbine compressor cover and testing the improvements it yields over the standard cover. This updated cold side cover boasts an anti-surge housing and improved aerodynamic design to maximize the potential of this powerful 7163 turbocharger.
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Jason Zuress, of JAZ Tuning is in house for this project, optimizing this built Subaru for some serious power. He has been tuning this build for years, and working together with Alan, these guys are sure to deliver the 500 ponies this customer is aiming for.
Jason is a good friend, and talented tuner, make sure to check out what he offers over at jaztuning.com
We can custom order you any specialty turbo components, make sure to give us a call with your questions and goals, we can find just the parts for you!
We offer all kinds of tuning solutions, including direct-injection Subaru e-tunes and dyno tunes:
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Опубликовано:

12 сен 2024

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Комментарии : 37

@stitesstephen 2 года назад

Fun to watch and very interesting to see the various aspects of the tuning process.

@EdgeAutosport 2 года назад

Thanks, glad you enjoyed it!

@gar24407 Год назад

I have always said this small inlet turbos are restricting turbos. To move air in, the front of the turbo is at (almost) perfect vacuum. So with the same delta in pressure (atm vs vacuum). The bigger inlet will flow more, more HP. If I go with an EFR stock location I will put some massive spacer under the tgvs to get a bigger inlet.

@yamahaSHO Год назад

I don't disagree, but the scroll is bigger as well.

@BabyCharlotteschannel Год назад

Yeah, every improvement in flow capability will always show an increase in power-- period..

@delta-tuning 8 месяцев назад

Don't run a stock location turbo if you want lots of power, period. The 90* bend in the turbo inlet hurts flow a lot and the exhaust housing is more restrictive which increases back pressure. The turbo is also sucking in less dense air at the inlet, so it needs a greater VOLUME of air (larger diameter tubing) at the inlet than the denser air at the compressor outlet (smaller diameter tubing), since you are moving the same amount of MASS of air, with less VOLUME now. This is why most common big turbo kits use a 4" inlet and 2.5" intercooler piping.

@godsoe_is_old 2 года назад

That was awesome ….I’m excited to see some RS3 content!

@whiteSTi12 2 года назад

Thanks for lletting my car spew its coolant on your dyno!.

@EdgeAutosport 2 года назад

Any time! lol

@HeidiFegles Месяц назад

It’s called marking your territory every Subaru is known to do it from time to time.

@serb5280 2 года назад

Looks like Kevin is buying 10 more turbos. He should buy me the sxe housing for my efr7163.

@EdgeAutosport 2 года назад

😆

@whiteSTi12 2 года назад

no drazen :D

@thecookeman 2 года назад

What's that chu chu noise under load? Is it compressor surge? How much lag would an efr7670 add?

@EdgeAutosport 2 года назад

I believe you are hearing the external wastegate, boxer engines tend make that chugging wastegate noise at WOT with their unequal length exhaust manifold. A 7670 is gonna be a pretty laggy setup, but when it hits...

@TestDriveInline5 3 месяца назад

Have you tested running the EFR turbos completely without a BOV/RCV? would be interesting to see if the compressor wheel and shaft can withstand it.

@HeidiFegles Месяц назад

Stretched the head studs

@whiteSTi12 Месяц назад

@@HeidiFegles nope, was a bad headgasket sent to me by a vendor. I replaced with oem and never had an issue after that even running 30psi boost. Sold the car a couple weeks ago.

@HeidiFegles Месяц назад

@@whiteSTi12 are you on stock head studs still or arp? And that’s crazy the gasket was imperfect, I wonder how often that is the case and we blame it on other stuff thinking that’s the problem.

@whiteSTi12 Месяц назад

@@HeidiFegles I was running ARP 625+ headstuds. The gasket was bent during shipping and I called the vendor to ask if it was OK and they said it was fine to use.

@yamahaSHO Месяц назад

The tune before and after was about the same and it's been a couple years since tuning it and the car is still running just fine... And sold as noted. The owner realized that making power with a Subaru was expensive and on a time table.

@HeidiFegles Месяц назад

@@yamahaSHO well 2 years and still running. Must be a good tune I’d say. 30 psi if the load isn’t dialed on the timing table then that motor will blow in half. Ya I know from experience haha. I built a motor did my best on it at age 22 and I’m 35 now, but I flashed my timing curve in and forgot to rescale the load and we’ll. 30 psi 38degrees advance. And well you can imagine the giant puff of steam and the rod sticking out of the hood after that lol.

@DruNicholsMD Год назад

Is there a seperate compressor map for the SXE combo?

@Kevin.OBrien44 20 дней назад

u ever find out?

@GreenLifeOmaha_GLO Год назад

Those are super small. I'm used to looking at s480 v8s lol

@michaelvalverde2384 2 года назад

👌💯

@EdgeAutosport 2 года назад

Thanks for the watch!

@jaimeaj24 Год назад

Hi guys! Were you running e85 on this build?

@jasonzuress9908 Год назад

Yes, this is a FlexFuel setup and the ethanol content was around 81%, IIRC.

@jeremyvankeulen1006 2 года назад

Is there benifets on 6758 turbo

@yamahaSHO 2 года назад

There is a guy on NASIOC who is going to try this with a 6758 (not sure exactly what cover you need). I am. Also curious in the results.

@EdgeAutosport 2 года назад

Yeah, with that smaller 6758, we'd say it would even further decrease spool time, and beef up the mid-range power curve, possibly the whole curve. We can order you the right cover if interested, please reach out if you want to pick one up and try for yourself.