Advertisement

Si PRL Motorsports Type-R Turbo Swapped 1.5T Civic Si

17siturb0

Senior Member
Joined
Dec 3, 2016
Messages
1,319
Reaction score
826
Location
U.S North east
Car(s)
2017 civic si sedan, 2006 civic si coupe
323hp 348tq on pump gas, 360hp 397tq on E85 blend?



Advertisement


 

kshawn

Senior Member
First Name
Matthew
Joined
Apr 23, 2016
Messages
1,941
Reaction score
1,482
Location
Maine
Car(s)
2017 Civic SI
Country flag
:pickme:
 
OP
PRL Motorsports

PRL Motorsports

Premium Performance Products
Elite Sponsor
Joined
Jan 26, 2017
Messages
1,315
Reaction score
3,563
Location
Export, PA
Website
prlmotorsports.com
Car(s)
2017 Civic Si, 2016 Civic EX-T, 2018 Type R
Country flag
  • Thread starter
  • Thread Starter
  • #33
So here we have it... :headbang:

Type%20R%20Turbo%20Swap_zpsegxqmy13.jpg


326 hp & 305 tq on 93 octane pump gas and 342 hp & 319 tq on e30 blend fuel. We were very impressed with the pump gas power!

Type%20R%20Turbo%20vs_zps4nrxvivl.jpg


Here is an e30 blend comparison of the stock turbo vs the Type-R turbo. Obviously with the larger turbo comes more turbo lag, about 1000 RPM worth. However, the engine now pulls to redline and peaks near 7000 RPM instead of 5200 RPM. The Type-R turbo softened the bottom-end torque spike significantly and made 20 ft/lbs less peak torque than the stock turbo. This powerband looks much safer on the stock motor/connecting rods. ;)

@KTuner and @VitViper worked their magic on the VTC tables to make this setup work properly and pull to redline. We managed to hold ~29 PSI all the way to redline, unlike the Type-R 2.0T 's engine and turbo setup that starts dropping boost pressure up top. This just goes to show how well the small displacement 1.5L breathes with a larger turbo/turbine. The next obstacle to overcome is fueling, as we have now maxed out the factory fuel system.
 

360glitch

Moderator
Joined
Feb 15, 2017
Messages
4,077
Reaction score
4,062
Location
USA
Car(s)
2017 Civic Si Sedan
Vehicle Showcase
1
Country flag
This powerband looks much safer on the stock motor/connecting rods. ;)
:yes:


Great results! I am curious though, with more fuel could you get more out of this particular setup?
 

kshawn

Senior Member
First Name
Matthew
Joined
Apr 23, 2016
Messages
1,941
Reaction score
1,482
Location
Maine
Car(s)
2017 Civic SI
Country flag
29psi :respect: was this on factory internals? I'm assuming this was a SI as well.
 

LilToTo17

Senior Member
First Name
Kevin
Joined
Jul 14, 2017
Messages
3,185
Reaction score
1,414
Location
Santa Rosa, CA
Website
wheelwell.com
Car(s)
98 Civic EX with SI Conversion-Sold, 2017 Civic Si Sedan
Vehicle Showcase
1
Country flag
this cant be safe for this little 1.5 is it? also is this plug and play?
This Type R turbo swap was just for testing only.
 

davemarco

Senior Member
Joined
Jun 3, 2017
Messages
2,395
Reaction score
1,323
Location
New York
Car(s)
2019 Civic Type R (CBP), 2001 Honda Prelude (Premium White Pearl)
Country flag
If the upcoming big turbo kit is based on this, then I would be interested in understanding whether internals would be required to be safe, and what the target cost would be.

I've been holding fire on my purchases of the current PRL lineup in the hopes of maximizing my power/$ investment.
 

kshawn

Senior Member
First Name
Matthew
Joined
Apr 23, 2016
Messages
1,941
Reaction score
1,482
Location
Maine
Car(s)
2017 Civic SI
Country flag
If the upcoming big turbo kit is based on this, then I would be interested in understanding whether internals would be required to be safe, and what the target cost would be.

I've been holding fire on my purchases of the current PRL lineup in the hopes of maximizing my power/$ investment.
Same
 
OP
PRL Motorsports

PRL Motorsports

Premium Performance Products
Elite Sponsor
Joined
Jan 26, 2017
Messages
1,315
Reaction score
3,563
Location
Export, PA
Website
prlmotorsports.com
Car(s)
2017 Civic Si, 2016 Civic EX-T, 2018 Type R
Country flag
  • Thread starter
  • Thread Starter
  • #42
If the upcoming big turbo kit is based on this, then I would be interested in understanding whether internals would be required to be safe, and what the target cost would be.

I've been holding fire on my purchases of the current PRL lineup in the hopes of maximizing my power/$ investment.
Any kit we finalize will utilize our cobra cold air intake and front mount intercooler kit, along with the front pipe.
 

kshawn

Senior Member
First Name
Matthew
Joined
Apr 23, 2016
Messages
1,941
Reaction score
1,482
Location
Maine
Car(s)
2017 Civic SI
Country flag
Any chance a water/meth kit would help with the fuel limitation? Untill possible upgraded fuel system options come out.
 

kshawn

Senior Member
First Name
Matthew
Joined
Apr 23, 2016
Messages
1,941
Reaction score
1,482
Location
Maine
Car(s)
2017 Civic SI
Country flag
Learn about turbocharging. Psi is irrelevant. It’s about power and torque.
I wouldn't say it's irrelevant.. but 29 at 7000rpm is easier on the engine then the same at 4-5k. Torque brakes things and with boost down low you make alot more tq. Move the boost up in the high range and you'll make more hp/power. That being said, to much boost and it dosnt matter where you're making it.

Seeing 29psi on factory internals,on a 1.5 consumer Honda engine, is impressive in my mind. Even with it being moved to the high rpms, vs our rod bending stock turbo.
 

Advertisement






Advertisement




Top