Borg Warner EFR 7163 vs 7670

[Niran]

Hey guys.

 

If I'm going to run a single scroll twisted setup on a 2.5L 2011 STI, with:

 

- Power goals of 350kw

- Full boost by 3500rpms 

- Holds power to redline

- 98 pump gas tune

 

Which of the two aformentioned turbos would you go for? I'm personally leaning towards the 7163 from what I've read, but have no experience.

 

Also concerned about the capabilities of the internal Watergate. Apparently you need to get a turbosmart twin port IWG to make it handle higher boost pressures on the STI? 

 

Also unsure about the BOV capabilities. 

 

Other than that, they look like amazing turbos! 

 

Hoping they will retain some of that street rapid power onset, over the steady increase too 

[boon]

1 hour ago, Niran said:

Hey guys.

 

If I'm going to run a single scroll twisted setup on a 2.5L 2011 STI, with:

 

- Power goals of 350kw

- Full boost by 3500rpms 

- Holds power to redline

- 98 pump gas tune

 

Which of the two aformentioned turbos would you go for? I'm personally leaning towards the 7163 from what I've read, but have no experience.

 

Also concerned about the capabilities of the internal Watergate. Apparently you need to get a turbosmart twin port IWG to make it handle higher boost pressures on the STI? 

 

Also unsure about the BOV capabilities. 

 

Other than that, they look like amazing turbos! 

 

Hoping they will retain some of that street rapid power onset, over the steady increase too 

 

A magical unicorn if you want full boost at 3500rpm and 350wkw on pump gas. Or you'll be replacing turbos and headers all the time due to the hectic antilag you'll have to run. Maybe nitrous would get you there?

 

A 7163 will spool about that level but only flows enough for maybe 330wkw. 7670 juuuuust flows enough for 350wkw but will spool at more like 4000rpm.

 

Time to make some decisions by the sounds of things.

[Niran]

Yeah figured that would be the case @boon 

 

I think given I'm single scroll and 2.5L, the quicker spool is worth more than the extra 20hp, as can't rev to 8k anyways.

 

Plus guessing he 7670 will be pricier.

 

330wkw will be plenty for sure!

 

What do you reckon about the Watergate and BOV?