Valid point. However I think given the ct9a is no less than 10 years old by now chances are most cars will have at least some of those mods already. Including downpipe, exhaust manifold and wastegate actuator. In fact I'll go as far to say the kind of person who is potentially looking to go for an efr is likely already utilizing some stock appearing aftermarket turbo as is in the 450-500whp range but looking for more. If this is the case most just need to buy the turbo and maybe the fuel system to support it.

 

Good to finally see some more results from the 7163 from FullRace. The Evo 9 turbo curve on that dyno was impressive to begin with (450 lb.ft down low and nearly 400hp). The 7163 loses about 500RPM of spool (using the 300 lb.ft. crossing point as a reference) but gains 100HP in the midrange and around 175HP up top. That's a pretty good trade-off.

If you're looking for a bargain upgrade path, the FP Red makes a lot of sense. Lots of bang for your buck. It's the easy button setup.

If you're looking to squeeze that last 10-20% out of the setup and you're willing to pay a little more for it, the 7163 is shaping up to be a good option.

 

So much win in your setup.

 

I sold all of my bolt-ons and I am coming out not too far in the red all said and done, but I think in just about any situation it will cost more to implement an EFR vs. a stock frame turbo, even with the ridiculous prices of the bb stuff. However my cost all-in will be disproportionate because of my charge piping and downpipe.

I think trying to define the EFR value proposition in terms of cost will almost always be a losing battle vs. the stock frame stuff - but if everyone was going for the best price/performance they would all have 71HTAs

 

It looks like there is more than enough room to make the wastegate arm longer as well.

 

EFR turbo is not cheap,, modding evo is not cheap! Some people might buy exedy triple, cheap people buy act 6pucks. I spend on injectors dynamics. Others can buy your generic aftermarket injectors from donkeypowers, 5oh, injectorsclinic,. I spend $$$ on efr turbo and you can buy your rossport all good bro!

 

I wouldn't call Ross Sport, which is by extension a Forced Performance product, a cheap or generic part.

 

As a consumer you are free to spend your dollars however you like. I actually really want the 7163 to be worth it. But given the cost and difficulty involved with fitting it to an 8/9, I am just not sure that it is.

 

Trade-off is loss of some travel but perhaps ok if goal is high boost.

+1

 

The reliability of the OEM cast manifold setup is quite important to those running on the road course. Running a power/weight class that puts the engine requirements in the 300-400AWHP range, there are still no better options than stock twin scroll.

There are a lot of cracked tubular headers out at the track. Heat, vibration and bouncing over curbing take its toll.

 

From what I've seen, the 7163 is a 550whp turbo on kill and the HTA and HTZ MHI Reds are 600whp turbos on kill.

But people with the 7163 love the transient response. Honestly, I don't think either set up is bad. Looking forward to more dyno's and feedback on the 7163.

 

Actually it is owen developments / FP so pretty high end turbo manufacturer

 

I'm wondering what sould i get for respons.. V-band or twin scroll t4 .?

 

The T4TS will win for transient response but it gives up some top end.

 

I've made 570whp with a T4 IWG 7163... just for reference.