BW EFR 7163 Twinscroll kit by CBRD
Yeah. It might be fun if there was a way to still make any kind of power under 5k rpm. I already spool a bit later than stock. I think that the more power you go for, the later boost will kick in. That's a compromise I am not willing to make. I drive my car mostly on the street, no track, so what's the point of making 600 whp at over 4500-5000 rpm? Yes, it will be fast and once you get in boost it pulls but below 4000 rpm you got nothing. I don't know if I'm right but please correct me if I'm not. I still want some sort of early boost. That's what makes it fun on the treet.
By the way, mine is the open scroll kit.
By the way, mine is the open scroll kit.
Yeah. It might be fun if there was a way to still make any kind of power under 5k rpm. I already spool a bit later than stock. I think that the more power you go for, the later boost will kick in. That's a compromise I am not willing to make. I drive my car mostly on the street, no track, so what's the point of making 600 whp at over 4500-5000 rpm? Yes, it will be fast and once you get in boost it pulls but below 4000 rpm you got nothing. I don't know if I'm right but please correct me if I'm not. I still want some sort of early boost. That's what makes it fun on the treet.
By the way, mine is the open scroll kit.
By the way, mine is the open scroll kit.
With a built bottom and stock turbo what gains can be seen? I assume you can turn it up to the limits of what your gas quality will allow you to.
I accept donations of new a new pump and new injectors

I would love cams and a built block with this thing though. E85 would be wonderful, except the nearest station that carries it is about 35 miles away.
Yeah. It might be fun if there was a way to still make any kind of power under 5k rpm. I already spool a bit later than stock. I think that the more power you go for, the later boost will kick in. That's a compromise I am not willing to make. I drive my car mostly on the street, no track, so what's the point of making 600 whp at over 4500-5000 rpm? Yes, it will be fast and once you get in boost it pulls but below 4000 rpm you got nothing. I don't know if I'm right but please correct me if I'm not. I still want some sort of early boost. That's what makes it fun on the treet.
By the way, mine is the open scroll kit.
By the way, mine is the open scroll kit.
The idea of "...below 4000 rpm you got nothing...." is basically a myth with true 500+ WHP Evos. Unless you're talking huge turbos like a 40R or bigger, a 35R will spool so fast in 1st or 2nd gear there is almost no feeling of lag, you're in the sweet spot in 1-2 seconds riding a wave of TQ, you don't really notice anything but massive acceleration pressing you back into your seat.
My car was built to be a beast at the track, and this resulted in the best car for me on the street as well. Unless you need all your power under 5000 RPM because your goal is to race people stoplight to stoplight, on busy streets in broad daylight, and rarely exceed 60 MPH. I wait until traffic dies down and find empty streets in LA canyons or onramps. No cops, few cars, no people, much safer for everyone.
In my opinion you are not right about this. Many of the best cars in history (Ferraris, Porsche GTs, M cars, etc) make most of their power above 5000 RPMs and are a blast to drive on the street--canyons, onramps, etc. My 8500 RPM 2.0 Evo X is fun to drive all the time and I make peak power at 8200 RPM.
The idea of "...below 4000 rpm you got nothing...." is basically a myth with true 500+ WHP Evos. Unless you're talking huge turbos like a 40R or bigger, a 35R will spool so fast in 1st or 2nd gear there is almost no feeling of lag, you're in the sweet spot in 1-2 seconds riding a wave of TQ, you don't really notice anything but massive acceleration pressing you back into your seat.
My car was built to be a beast at the track, and this resulted in the best car for me on the street as well. Unless you need all your power under 5000 RPM because your goal is to race people stoplight to stoplight, on busy streets in broad daylight, and rarely exceed 60 MPH. I wait until traffic dies down and find empty streets in LA canyons or onramps. No cops, few cars, no people, much safer for everyone.
The idea of "...below 4000 rpm you got nothing...." is basically a myth with true 500+ WHP Evos. Unless you're talking huge turbos like a 40R or bigger, a 35R will spool so fast in 1st or 2nd gear there is almost no feeling of lag, you're in the sweet spot in 1-2 seconds riding a wave of TQ, you don't really notice anything but massive acceleration pressing you back into your seat.
My car was built to be a beast at the track, and this resulted in the best car for me on the street as well. Unless you need all your power under 5000 RPM because your goal is to race people stoplight to stoplight, on busy streets in broad daylight, and rarely exceed 60 MPH. I wait until traffic dies down and find empty streets in LA canyons or onramps. No cops, few cars, no people, much safer for everyone.
I still street drive my Evo a lot. I save it for later at night when there's no traffic, I live 5 minutes from great canyons in LA. It's very streetable and I swap trunks so I don't have the AM wing around town.
Thread
Thread Starter
Forum
Replies
Last Post
tscompusa
Evo X Dyno Results
20
Feb 21, 2018 06:13 AM
aschmuck
Evo X Engine / Turbo / Drivetrain
24
Nov 3, 2015 10:48 AM
FS[Mid-Atlantic]: CBRD RX KIT EFR 7163 downpipe manifold
MisterRegato
For Sale - Engine / Drivetrain / Power
7
Oct 30, 2015 08:51 AM
FS[Mid-Atlantic]: Borg Warner EFR-7163 complete setup
Technical10
For Sale/WTB - Engine / Drivetrain / Power
0
Aug 7, 2014 09:12 AM









