Jeff122886's Twinscroll Full-Race EFR 8374 Build
#1
Jeff
Thread Starter
Jeff122886's Twinscroll Full-Race EFR 8374 Build
I figured its about time I start this thread since stuff is starting to come together, will keep this first page updated
Big thanks to all the people I have bought parts from for bearing with my constant nagging
Thanks to Brian from CRSX for putting up with a bunch of questions/orders for misc parts
Another thanks to Raffi at Full-Race ( raffi@full-race.com ) for helping me out with my order, keeping me informed and putting up with me
And most importantly the person doing my motor & tune Derek from Innovative Motorworks http://www.innovative-motorworks.com/
List of mods:
Block:
Benson sleeved K20Z1 block with 87mm bore
Wiseco 9.8:1 pistons
Manley Turbo Tuff Rods
ARP Studs
Hybrid Racing Tensioner
Honda bearings
Honda 87mm headgasket
New water pump, oil pump, chains, etc...
Head:
K20A2 Head
Ferrea 6000 valves
Brian Crower titanium retainers, springs, seats
Brian Crower Stg 2 N/A Cams
Supporting mods/Turblow/clutch/etc...
Twinscroll Full-Race 8374 EFR kit
3" K-Teller Piping, 3" Vibrant Res, 3" Vibrant flat black muffler
RBC
1000CC ID Injectors
Hybrid Racing Fuel Rail
Aeromotive Fuel filter
Aeromotive FPR
Bosch 044 fuel pump
Walbro intank pump
-8AN Russell feed
-6AN Russell return
Competition Clutch Twin Disk
Tilton CMC
Hybrid Racing shift linkage bushings
Innovative mounts @ 75A
PPG 1-4 with tsx 6th & Quaife LSD
Buddyclub N+ Coilovers
Buddyclub rear camber kit
Stoptech Rotors
Hawk HPS Pads
Russell SS brake lines
Billet Design Battery bracket w/ Odyssey pc680MT batt
Mickey Thompson Drag Radials
Vibrant 4" Velocity Stack
might be forgetting a few other things...
here is the spare block I bought
and the spare head
bunch of oem goodies
My fuel stuff
Clutch Stuff
Drag Radials
Battery w/ bracket
Full-Race Kit
close-up of the mani
And finally here are pics of the motor build, courtesy of Derek from Innovative Motorworks We are still waiting on the bearings before the build starts
Block finally back from Benson Sleeving
Pistons, crank, rods installed
almost all together, missing a pivot bolt on the chain guide, have to get thru the dealer so we are waiting on a new one
me and my friend picked up our built motors
And so it Begins
Motor almost ready to pull
ready to pull
lifting out
empty motor bay
new twin going in, flywheel on
clutch disks and pp on
going back in
Big thanks to all the people I have bought parts from for bearing with my constant nagging
Thanks to Brian from CRSX for putting up with a bunch of questions/orders for misc parts
Another thanks to Raffi at Full-Race ( raffi@full-race.com ) for helping me out with my order, keeping me informed and putting up with me
And most importantly the person doing my motor & tune Derek from Innovative Motorworks http://www.innovative-motorworks.com/
List of mods:
Block:
Benson sleeved K20Z1 block with 87mm bore
Wiseco 9.8:1 pistons
Manley Turbo Tuff Rods
ARP Studs
Hybrid Racing Tensioner
Honda bearings
Honda 87mm headgasket
New water pump, oil pump, chains, etc...
Head:
K20A2 Head
Ferrea 6000 valves
Brian Crower titanium retainers, springs, seats
Brian Crower Stg 2 N/A Cams
Supporting mods/Turblow/clutch/etc...
Twinscroll Full-Race 8374 EFR kit
3" K-Teller Piping, 3" Vibrant Res, 3" Vibrant flat black muffler
RBC
1000CC ID Injectors
Hybrid Racing Fuel Rail
Aeromotive Fuel filter
Aeromotive FPR
Bosch 044 fuel pump
Walbro intank pump
-8AN Russell feed
-6AN Russell return
Competition Clutch Twin Disk
Tilton CMC
Hybrid Racing shift linkage bushings
Innovative mounts @ 75A
PPG 1-4 with tsx 6th & Quaife LSD
Buddyclub N+ Coilovers
Buddyclub rear camber kit
Stoptech Rotors
Hawk HPS Pads
Russell SS brake lines
Billet Design Battery bracket w/ Odyssey pc680MT batt
Mickey Thompson Drag Radials
Vibrant 4" Velocity Stack
might be forgetting a few other things...
here is the spare block I bought
and the spare head
bunch of oem goodies
My fuel stuff
Clutch Stuff
Drag Radials
Battery w/ bracket
Full-Race Kit
close-up of the mani
And finally here are pics of the motor build, courtesy of Derek from Innovative Motorworks We are still waiting on the bearings before the build starts
Block finally back from Benson Sleeving
Pistons, crank, rods installed
almost all together, missing a pivot bolt on the chain guide, have to get thru the dealer so we are waiting on a new one
me and my friend picked up our built motors
And so it Begins
Motor almost ready to pull
ready to pull
lifting out
empty motor bay
new twin going in, flywheel on
clutch disks and pp on
going back in
Last edited by Jeff122886; 11-29-2011 at 09:21 PM.
The following users liked this post:
Ken1997TL (10-01-2014)
#2
Jeff
Thread Starter
all 4 mounts bolted up, wiring underway
pulled my knuckles off to install buddy club ball joints
new ball joints are in the knuckle
radiator, battery, front bumper bar re-installed, as well as cruise control deleted
mounted and wired up my new AEM digital gauges
installed my RBC, fuel injectors, fuel rail, and fuel feed
clean up the engine bay, installed my ktuned throttle body bracket and cable, tilton cmc, and a few other things
mounted up the intercooler
and mounted the turbo manifold
ran some of the ic pipes, mounted the cmc resevoir, bled the clutch, still need to hook up the injector clips, run vacuum lines and hook up the turbo when it comes
body is back together
intercooler pipes hooked up, fuel injector wiring done..... now just gotta wait on this turbo. but when it comes just gotta clock it, hooked up oil and water lines and boom
car is back together, back on the ground.....
pulled my knuckles off to install buddy club ball joints
new ball joints are in the knuckle
radiator, battery, front bumper bar re-installed, as well as cruise control deleted
mounted and wired up my new AEM digital gauges
installed my RBC, fuel injectors, fuel rail, and fuel feed
clean up the engine bay, installed my ktuned throttle body bracket and cable, tilton cmc, and a few other things
mounted up the intercooler
and mounted the turbo manifold
ran some of the ic pipes, mounted the cmc resevoir, bled the clutch, still need to hook up the injector clips, run vacuum lines and hook up the turbo when it comes
body is back together
intercooler pipes hooked up, fuel injector wiring done..... now just gotta wait on this turbo. but when it comes just gotta clock it, hooked up oil and water lines and boom
car is back together, back on the ground.....
#4
Jeff
Thread Starter
finally have everything hooked up. well still need to extend boost solenoid wires, and mate up the 2nd piece of my downpipe then fill her up with oil.
heres the first startup vid
http://www.youtube.com/watch?v=XyIcjmyXZUM
ready to make some numbers
old exhaust vs new
on the dyno
http://www.youtube.com/watch?v=VmQz63CQ7Y4
heres the first startup vid
http://www.youtube.com/watch?v=XyIcjmyXZUM
ready to make some numbers
old exhaust vs new
on the dyno
http://www.youtube.com/watch?v=VmQz63CQ7Y4
#5
Jeff
Thread Starter
This is from D-Rob's thread he created. took the quote out so pics would show up
http://forums..com/showthread.php?t=801063
"As some of you know the twin scroll EFR 8374's have finally begun shipping, and a customer of mine ("Jeff122886" here) was one of the first to receive one of these puppy's.
Yesterday, he made the long trip from Boston (7 hours each way) for some welding, engine break-in, and finally pump gas and C16 tuning.
His previous mid-pipe was constructed by what looked to be a blind baby with a MIG welder, and was thrashed up pretty well by the road. Below is the old versus new, because there's no use trying to make a bunch of power with a fancy new turbo through a crushed exhaust.
The turbo sitting nice and comfy in the engine bay of the RSX. It's strange to see a Full-Race divided sidewinder without gates on it!
Finally, the car on the dyno.
The engine was fresh (we assembled the engine over the summer, Benson-sleeved 87mm/Wiseco 9.8:1, Manley rods, etc...), so we did a small engine break-in on the dyno, changed the oil, and went for the lowest boost pressure setting available with the actuator on the turbo.
I was amazing to find that the internal gate was able to hold boost wonderfully at low pressures, with nothing but a small increase in boost over engine speed.
Next was to turn the boost up with the integrated solenoid. Upon applying duty cycle, I found that boost did not significantly move up until about the 50% or so range with this actuator. We also saw that while the internal gate does a great job bypassing exhaust flow to keep boost down, it still carries the same characteristics as most internally-gated turbos, in the way that once pressure goes up, it has a tendency to spike, then level, and ultimately fall off. That being said, I was able to make about 20psi in the middle, and 17.5psi up top with the first actuator, with controller duty cycle at 90% or so from 7,000 RPM and higher.
Below is a plot of the boost pressures on pump fuel. It is a comparison of the "high" setting, and the "low" setting after some preload adjustment.
With that said, the final 93 octane numbers were 508whp / 410wtq @ 20psi falling to 17.5psi up top. Because of this boost taper, the torque curve is a tad wavey up top. The engine's torque curve holds on, while boost drops. The dotted line shows wastegate pressure with a slight 1-2psi creep, so the curve looks normal.
After learning of the gate's tendency to drop boost pressure, a slightly stiffer actuator was installed while the 93 octane was pumped out, and C16 filled in its place.
The new actuator's lowest setting was around 14-15psi, and with that we were able to make about 25psi up top with 90% solenoid duty. In the middle, there was enough to make 28psi or so, but for the sake of consistency, we tuned to a flattened out 25psi.
At 25psi, we ended with 640whp / 480wtq.
As with the other gate, we saw a spike in pressure on spool-up, a slight drop, and then stabilize. The spike in torque on spool up can be seen on the pressure plot below.
Here is a comparison of the final C16 plots versus the final 93 octane.
Over-all, the turbo seemed to make similar power to a 6262, but spooled much like a GT3076R on this engine.
Here are a couple comparisons versus similar turbochargers:
EFR 8374 versus GT3582R
EFR 8374 versus T3/T67 H.O. (car with T67 is 11:1, on E85 even)
The EFR 8374 is hands-down one of the most responsive turbochargers of this size that I have dealt with.
Thanks for taking a look, just thought I would share the results.
- Derek
"
http://forums..com/showthread.php?t=801063
"As some of you know the twin scroll EFR 8374's have finally begun shipping, and a customer of mine ("Jeff122886" here) was one of the first to receive one of these puppy's.
Yesterday, he made the long trip from Boston (7 hours each way) for some welding, engine break-in, and finally pump gas and C16 tuning.
His previous mid-pipe was constructed by what looked to be a blind baby with a MIG welder, and was thrashed up pretty well by the road. Below is the old versus new, because there's no use trying to make a bunch of power with a fancy new turbo through a crushed exhaust.
The turbo sitting nice and comfy in the engine bay of the RSX. It's strange to see a Full-Race divided sidewinder without gates on it!
Finally, the car on the dyno.
The engine was fresh (we assembled the engine over the summer, Benson-sleeved 87mm/Wiseco 9.8:1, Manley rods, etc...), so we did a small engine break-in on the dyno, changed the oil, and went for the lowest boost pressure setting available with the actuator on the turbo.
I was amazing to find that the internal gate was able to hold boost wonderfully at low pressures, with nothing but a small increase in boost over engine speed.
Next was to turn the boost up with the integrated solenoid. Upon applying duty cycle, I found that boost did not significantly move up until about the 50% or so range with this actuator. We also saw that while the internal gate does a great job bypassing exhaust flow to keep boost down, it still carries the same characteristics as most internally-gated turbos, in the way that once pressure goes up, it has a tendency to spike, then level, and ultimately fall off. That being said, I was able to make about 20psi in the middle, and 17.5psi up top with the first actuator, with controller duty cycle at 90% or so from 7,000 RPM and higher.
Below is a plot of the boost pressures on pump fuel. It is a comparison of the "high" setting, and the "low" setting after some preload adjustment.
With that said, the final 93 octane numbers were 508whp / 410wtq @ 20psi falling to 17.5psi up top. Because of this boost taper, the torque curve is a tad wavey up top. The engine's torque curve holds on, while boost drops. The dotted line shows wastegate pressure with a slight 1-2psi creep, so the curve looks normal.
After learning of the gate's tendency to drop boost pressure, a slightly stiffer actuator was installed while the 93 octane was pumped out, and C16 filled in its place.
The new actuator's lowest setting was around 14-15psi, and with that we were able to make about 25psi up top with 90% solenoid duty. In the middle, there was enough to make 28psi or so, but for the sake of consistency, we tuned to a flattened out 25psi.
At 25psi, we ended with 640whp / 480wtq.
As with the other gate, we saw a spike in pressure on spool-up, a slight drop, and then stabilize. The spike in torque on spool up can be seen on the pressure plot below.
Here is a comparison of the final C16 plots versus the final 93 octane.
Over-all, the turbo seemed to make similar power to a 6262, but spooled much like a GT3076R on this engine.
Here are a couple comparisons versus similar turbochargers:
EFR 8374 versus GT3582R
EFR 8374 versus T3/T67 H.O. (car with T67 is 11:1, on E85 even)
The EFR 8374 is hands-down one of the most responsive turbochargers of this size that I have dealt with.
Thanks for taking a look, just thought I would share the results.
- Derek
"
The following users liked this post:
GivatiTL (12-26-2011)
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#10
Instructor
#12
Moderator
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Holy shit! Absolutely mind blowing. Congrats to you sir
#18
TimmieT
diff angle, kinda like this angle more
http://www.youtube.com/watch?v=h0r4Z2rG8w8
http://www.youtube.com/watch?v=h0r4Z2rG8w8
#22
Burning Brakes
This car is fantastic! Can't wait for the full race turbo kit in my tsx!!! Great job man, car looks awesome, and the engine is unreal!
#23
Burning Brakes
Wait wait wait, i just saw it says Worcester Area! Like Mass?
#24
Jeff
Thread Starter
will have a bunch of updates in a few weeks or so.
teaser pic
#25
Burning Brakes
no way??!? Where are you getting all your work done? Car looks amazing...idk if you are apart of masstuning...but there are a bunch of meets and things coming up..you should definitely go cars great http://www.facebook.com/groups/18385...6564120709849/ list of upcoming meets and things
#26
Jeff
Thread Starter
no way??!? Where are you getting all your work done? Car looks amazing...idk if you are apart of masstuning...but there are a bunch of meets and things coming up..you should definitely go cars great http://www.facebook.com/groups/18385...6564120709849/ list of upcoming meets and things
#27
Burning Brakes
Wow...respect, good for you man! Thats fantastic! Can't wait to see it at one of the meets
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godfather2 (05-31-2012)
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Wow
#33
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Fucking sick, nice work man
#35
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#37
takin care of Business in
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Join Date: Jan 2008
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sooooo SICK !!!
looks greats and its FASTTT !!!!