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Old 08-14-2019, 02:23 PM   #10
Scooby Newbie
Member#: 447898
Join Date: May 2016
Location: Sacramento, CA
2016 WRX (traded)
2019 STI CWP


Originally Posted by WideBody View Post
It all depends on how the power is delivered, but I owned a 2015 WRX and after I got over the "wow, this is fast in normal driving compared to the old one" feeling I felt the car was pretty anemic once you actually revved it out. It just felt like it died after 3000RPM which isn't a good feeling whatsoever. I know that's an issue with most of these modern DIT engines from all manufacturers, but I just hope they can keep the redline higher and at least add some "drama" to the STI with the new motor while still adding performance throughout the curve.

I've recently driven some high strung NA motors and that is truly a great feeling. It's something that I truly miss and probably something we'll never see again sadly. I feel like a 6000RPM redline on a "performance" car is the new norm until it's fully electric. The era of 8000+ RPM redlines is most likely over.
I agree, I wasn't impressed by the stock FA20DIT powerband. Adding flex fuel & a tune helped quite a bit.

I think a higher powerband and ~7,500 rpm redline is very reasonable to ask for. Subaru can easily make power up there as proved by many FA20 builds on here. Swapping to a slightly larger turbo and higher flowing intake manifold is all that it takes. They could also change the cam profiles and improve the head flow. The BRZ heads already make power up there. Dual injection (port & direct) also helps with higher RPM power and minimizes carbon buildup. The extra displacement from the FA24 would help offset additional turbo lag.

I've owned a lot of Hondas (S2000, Civic w/ K20a, Civic w/ B18C, etc.) with 8,500-9,000 rpm redlines. Now we live in a time where v8 Mustangs have a higher redline than most cars (Mustang GT 7,500 rpm & GT350 8,250 rpm).
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