BW EFR 7163 Twinscroll kit by CBRD

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Nov 3, 2016 | 10:18 PM
  #76  
Quote: Same. Would love to even see E85, cams, built block and boost past 26psi.
Even stock block past 26psi
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Nov 4, 2016 | 05:22 AM
  #77  
I accept donations, and will use my car as a test for you guys
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Nov 4, 2016 | 06:40 AM
  #78  
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.
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Nov 4, 2016 | 09:38 AM
  #79  
Quote: 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.
It will actually spool faster the higher your target boost is.
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Nov 5, 2016 | 08:36 PM
  #80  
Quote: Same. Would love to even see E85, cams, built block and boost past 26psi.
How much would that cost? If people spend that money don't they tend to just go insane with power levels?
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Nov 6, 2016 | 10:48 AM
  #81  
Quote: How much would that cost? If people spend that money don't they tend to just go insane with power levels?
People build their motors all the time without chasing power. There are even people running around with built motors and stock turbos.
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Nov 6, 2016 | 05:43 PM
  #82  
Quote: People build their motors all the time without chasing power. There are even people running around with built motors and stock turbos.
I always assumed the people that had a built bottom end and stock-elsewhere were in transition.

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.
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Nov 7, 2016 | 09:44 AM
  #83  
Quote: I accept donations, and will use my car as a test for you guys

Donations for what? All you need are a pump and injectors, turn the boost up. The stock short block will hold 400-430wtq.
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Nov 7, 2016 | 11:15 AM
  #84  
Quote: Donations for what? All you need are a pump and injectors, turn the boost up. The stock short block will hold 400-430wtq.


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.
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Nov 25, 2016 | 04:17 PM
  #85  
Quote: 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.
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.
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Nov 25, 2016 | 04:59 PM
  #86  
Quote: 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.
How'a the MAP oil pan working for you on the track - do you still street your Evo X at all? I assume the dipstick isn't used, do you remove the tube?
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Nov 25, 2016 | 10:28 PM
  #87  
Quote: How'a the MAP oil pan working for you on the track - do you still street your Evo X at all? I assume the dipstick isn't used, do you remove the tube?
MAP oil pan seems great. Extra capacity and baffling probably helps a lot in big sweepers like ACS ROVAL turn 1-2. I also added <60 PSI triggered Accusump for that. Yes the dipstick is still there, why would I remove it?

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.
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