EFR Series Turbo Behavior??
Feb 10, 2017, 01:30 AM
#1
Newbie
Thread Starter
EFR Series Turbo Behavior??
I'm planning a build. 2.2L, head, GSC S2, intake manifold port and some other supporting mods. Currently I have the EFR 7163 Twin scroll. It hits peak TQ at around 4100 RPMs. I have been considering a turbo upgrade as well, but I'm not sure because I don't want to lose too much spool and make the car a pain on the street, as its my daily driver.
So, my question to the community is this, can anyone tell me how the larger EFR turbos might affect my spool and how much power I might gain from one to the next? I am referring to the 7670, 8374 and 9180. I understand there is also a 9174 although I've never actually seen one yet. I would be going with twin scroll. I was thinking the 8374 might be the way to go. Well, I'm also running 93 Oct pump gas too.
So, if anyone can answer this question I would appreciate it.
I'm making about 400 HP on CBRDs Mustang dyno and 320 TQ at 4100 RPMs, 26-27 PSI max I believe.
Sorry I didn't list mods before, I thought I had them in the signature.
My Mods:
BW EFR 7163 Twin Scroll-Internal BOV/WG
CBRD Tubular Exhaust Manifold
CBRD Downpipe
UR Resonated Test Pipe and Catback
CBRD 3 in Intake
CBRD 3.5 in Intercooler
ETS UICP/LICP
ID 1000cc
DW 265 lph
So, my question to the community is this, can anyone tell me how the larger EFR turbos might affect my spool and how much power I might gain from one to the next? I am referring to the 7670, 8374 and 9180. I understand there is also a 9174 although I've never actually seen one yet. I would be going with twin scroll. I was thinking the 8374 might be the way to go. Well, I'm also running 93 Oct pump gas too.
So, if anyone can answer this question I would appreciate it.
I'm making about 400 HP on CBRDs Mustang dyno and 320 TQ at 4100 RPMs, 26-27 PSI max I believe.
Sorry I didn't list mods before, I thought I had them in the signature.
My Mods:
BW EFR 7163 Twin Scroll-Internal BOV/WG
CBRD Tubular Exhaust Manifold
CBRD Downpipe
UR Resonated Test Pipe and Catback
CBRD 3 in Intake
CBRD 3.5 in Intercooler
ETS UICP/LICP
ID 1000cc
DW 265 lph
Last edited by cerealkeller; Feb 10, 2017 at 07:39 AM.
Feb 13, 2017, 12:38 PM
#2
I'm planning a build. 2.2L, head, GSC S2, intake manifold port and some other supporting mods. Currently I have the EFR 7163 Twin scroll. It hits peak TQ at around 4100 RPMs. I have been considering a turbo upgrade as well, but I'm not sure because I don't want to lose too much spool and make the car a pain on the street, as its my daily driver.
So, my question to the community is this, can anyone tell me how the larger EFR turbos might affect my spool and how much power I might gain from one to the next? I am referring to the 7670, 8374 and 9180. I understand there is also a 9174 although I've never actually seen one yet. I would be going with twin scroll. I was thinking the 8374 might be the way to go. Well, I'm also running 93 Oct pump gas too.
So, if anyone can answer this question I would appreciate it.
I'm making about 400 HP on CBRDs Mustang dyno and 320 TQ at 4100 RPMs, 26-27 PSI max I believe.
Sorry I didn't list mods before, I thought I had them in the signature.
My Mods:
BW EFR 7163 Twin Scroll-Internal BOV/WG
CBRD Tubular Exhaust Manifold
CBRD Downpipe
UR Resonated Test Pipe and Catback
CBRD 3 in Intake
CBRD 3.5 in Intercooler
ETS UICP/LICP
ID 1000cc
DW 265 lph
So, my question to the community is this, can anyone tell me how the larger EFR turbos might affect my spool and how much power I might gain from one to the next? I am referring to the 7670, 8374 and 9180. I understand there is also a 9174 although I've never actually seen one yet. I would be going with twin scroll. I was thinking the 8374 might be the way to go. Well, I'm also running 93 Oct pump gas too.
So, if anyone can answer this question I would appreciate it.
I'm making about 400 HP on CBRDs Mustang dyno and 320 TQ at 4100 RPMs, 26-27 PSI max I believe.
Sorry I didn't list mods before, I thought I had them in the signature.
My Mods:
BW EFR 7163 Twin Scroll-Internal BOV/WG
CBRD Tubular Exhaust Manifold
CBRD Downpipe
UR Resonated Test Pipe and Catback
CBRD 3 in Intake
CBRD 3.5 in Intercooler
ETS UICP/LICP
ID 1000cc
DW 265 lph
https://www.evolutionm.net/forums/ev...cams-93-a.html
Mar 2, 2018, 08:06 PM
#3
I'm planning a build. 2.2L, head, GSC S2, intake manifold port and some other supporting mods. Currently I have the EFR 7163 Twin scroll. It hits peak TQ at around 4100 RPMs. I have been considering a turbo upgrade as well, but I'm not sure because I don't want to lose too much spool and make the car a pain on the street, as its my daily driver.
So, my question to the community is this, can anyone tell me how the larger EFR turbos might affect my spool and how much power I might gain from one to the next? I am referring to the 7670, 8374 and 9180. I understand there is also a 9174 although I've never actually seen one yet. I would be going with twin scroll. I was thinking the 8374 might be the way to go. Well, I'm also running 93 Oct pump gas too.
So, if anyone can answer this question I would appreciate it.
I'm making about 400 HP on CBRDs Mustang dyno and 320 TQ at 4100 RPMs, 26-27 PSI max I believe.
Sorry I didn't list mods before, I thought I had them in the signature.
My Mods:
BW EFR 7163 Twin Scroll-Internal BOV/WG
CBRD Tubular Exhaust Manifold
CBRD Downpipe
UR Resonated Test Pipe and Catback
CBRD 3 in Intake
CBRD 3.5 in Intercooler
ETS UICP/LICP
ID 1000cc
DW 265 lph
So, my question to the community is this, can anyone tell me how the larger EFR turbos might affect my spool and how much power I might gain from one to the next? I am referring to the 7670, 8374 and 9180. I understand there is also a 9174 although I've never actually seen one yet. I would be going with twin scroll. I was thinking the 8374 might be the way to go. Well, I'm also running 93 Oct pump gas too.
So, if anyone can answer this question I would appreciate it.
I'm making about 400 HP on CBRDs Mustang dyno and 320 TQ at 4100 RPMs, 26-27 PSI max I believe.
Sorry I didn't list mods before, I thought I had them in the signature.
My Mods:
BW EFR 7163 Twin Scroll-Internal BOV/WG
CBRD Tubular Exhaust Manifold
CBRD Downpipe
UR Resonated Test Pipe and Catback
CBRD 3 in Intake
CBRD 3.5 in Intercooler
ETS UICP/LICP
ID 1000cc
DW 265 lph
Mar 3, 2018, 08:17 AM
#4
Newbie
Thread Starter
I'm pretty sure a 7163 Twin Scroll on my setup would spool like a stock engine with bolt ons and tune.
Its pretty wild. Doesn't like crawling at low speed, so I would certainly recommend not getting a final drive upgrade with the AMS cams if you live in a city. I live out in the sticks, so it's really not too bad, but it still a bit of a pain in the butt some times. Once you're moving, it's great. Spools up quick for such a huge turbo and pulls hard as hell all the way to redline.
If you want an engine that makes more power than stock and spools every bit as good, the 7163 isn't a bad choice. If you don't mind losing some spool and want a monster Evo then the bigger turbos are good. The 7670 may actually be the way to go without cams for a happy medium. I wouldn't go anything bigger than an 8374 for pump gas.
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