2.0 WRX heads, 2.5 STi shortblock, 20G DYNO numbers
12-26-2003, 12:33 PM
#1
Guest
Posts: n/a
2.0 WRX heads, 2.5 STi shortblock, 20G DYNO numbers
Greetings everyone,
Not quite sure where to put this...but lots of people have asked to see the data. That being said...please excuse the double post.
Well we finally got around to posting our 20G sti/wrx dyno sheet.
The dyno runs were taken a little more than 1 month ago. Of course the car is running a "little" stronger now :devil:
Here is a list of the modifications done to the hybrid (Sti/WRX/20g Ver1).
Modifications
- USDM 2.5L STi Shortblock
- USDM 2.0L WRX stock Heads
- M2 Turboback Exhuast
- Helix Uppipe
- STi Injectors
- Walbro Fuel Pump
- 20G Turbo (15.5 PSI, yeah that is it)
- I-Speed ECUtek
These tests were conducted on only 15.5PSI becuse the tiny little STi injectors cannot handle any more work. FYI, the duty cycle on the injectors was about 90%.
Chris
I-Speed USA
cescamilla@i-speedusa.com
Not quite sure where to put this...but lots of people have asked to see the data. That being said...please excuse the double post.
Well we finally got around to posting our 20G sti/wrx dyno sheet.
The dyno runs were taken a little more than 1 month ago. Of course the car is running a "little" stronger now :devil:
Here is a list of the modifications done to the hybrid (Sti/WRX/20g Ver1).
Modifications
- USDM 2.5L STi Shortblock
- USDM 2.0L WRX stock Heads
- M2 Turboback Exhuast
- Helix Uppipe
- STi Injectors
- Walbro Fuel Pump
- 20G Turbo (15.5 PSI, yeah that is it)
- I-Speed ECUtek
These tests were conducted on only 15.5PSI becuse the tiny little STi injectors cannot handle any more work. FYI, the duty cycle on the injectors was about 90%.
Chris
I-Speed USA
cescamilla@i-speedusa.com
12-26-2003, 04:00 PM
#3
Guest
Posts: n/a
This particular set-up was not created for resale purposes. It was created for data gathering. Of course, some of this data will then be turned toward developing turn key kits
Here is an approximation of what these pieces would cost, individually:
- USDM 2.5L STi Shortblock (1400-1700 new)
- USDM 2.0L WRX stock Heads (700-1000 used)
- M2 Turboback Exhuast (800 used)
- Helix Uppipe (200 new)
- STi Injectors (350 new)
- Walbro Fuel Pump (120 new)
- 20G Turbo (1000 used)
- I-Speed ECUtek (650 new)
So if you want to replicate this set-up, then you are looking to spend $3400-$4000 un-installed.
Chris
I-Speed USA
cescamilla@i-speedusa.com
Here is an approximation of what these pieces would cost, individually:
- USDM 2.5L STi Shortblock (1400-1700 new)
- USDM 2.0L WRX stock Heads (700-1000 used)
- M2 Turboback Exhuast (800 used)
- Helix Uppipe (200 new)
- STi Injectors (350 new)
- Walbro Fuel Pump (120 new)
- 20G Turbo (1000 used)
- I-Speed ECUtek (650 new)
So if you want to replicate this set-up, then you are looking to spend $3400-$4000 un-installed.
Chris
I-Speed USA
cescamilla@i-speedusa.com
12-27-2003, 11:18 AM
#4
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iTrader: (1)
Join Date: Jun 2003
Location: blaine,WA
Posts: 935
Car Info: 2002 wrx wagon black
Re: 2.0 WRX heads, 2.5 STi shortblock, 20G DYNO numbers
Originally posted by I-Speed USA
Greetings everyone,
Not quite sure where to put this...but lots of people have asked to see the data. That being said...please excuse the double post.
Well we finally got around to posting our 20G sti/wrx dyno sheet.
The dyno runs were taken a little more than 1 month ago. Of course the car is running a "little" stronger now :devil:
Here is a list of the modifications done to the hybrid (Sti/WRX/20g Ver1).
Modifications
- USDM 2.5L STi Shortblock
- USDM 2.0L WRX stock Heads
- M2 Turboback Exhuast
- Helix Uppipe
- STi Injectors
- Walbro Fuel Pump
- 20G Turbo (15.5 PSI, yeah that is it)
- I-Speed ECUtek
These tests were conducted on only 15.5PSI becuse the tiny little STi injectors cannot handle any more work. FYI, the duty cycle on the injectors was about 90%.
Chris
I-Speed USA
cescamilla@i-speedusa.com
Greetings everyone,
Not quite sure where to put this...but lots of people have asked to see the data. That being said...please excuse the double post.
Well we finally got around to posting our 20G sti/wrx dyno sheet.
The dyno runs were taken a little more than 1 month ago. Of course the car is running a "little" stronger now :devil:
Here is a list of the modifications done to the hybrid (Sti/WRX/20g Ver1).
Modifications
- USDM 2.5L STi Shortblock
- USDM 2.0L WRX stock Heads
- M2 Turboback Exhuast
- Helix Uppipe
- STi Injectors
- Walbro Fuel Pump
- 20G Turbo (15.5 PSI, yeah that is it)
- I-Speed ECUtek
These tests were conducted on only 15.5PSI becuse the tiny little STi injectors cannot handle any more work. FYI, the duty cycle on the injectors was about 90%.
Chris
I-Speed USA
cescamilla@i-speedusa.com
12-27-2003, 11:38 AM
#5
VIP Member
iTrader: (3)
Join Date: Nov 2002
Location: Lastweek Lane - Watertown, NY
Posts: 10,133
Car Info: 02WRXpseudoSTiWannabeWagon
Please pardon the n00bish question, but I would've figured that with that setup, with maybe larger injectors, could produce near 400hp. I thought that the internals in the US STI block were supposed to actually be stronger than forged. And I thought that the amount of air a 20g could flow on top of a little 4 banger was was tremendous, and would be staggering on top of a little bit bigger 4 banger. Is it that the heads are THAT restrictive?
12-27-2003, 12:05 PM
#6
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raazin -yes the V7 heads will bolt up. However you will need the V7 ECU to use the avcs.
gpatmac- The set-up can produce larger numbers. Larger injectors, Fuel rails, and more boost will work wonders
. Remember that the dyno plot above is only from 15.5 psi.
Chris
I-Speed USA
cescamilla@i-speedusa.com
gpatmac- The set-up can produce larger numbers. Larger injectors, Fuel rails, and more boost will work wonders
. Remember that the dyno plot above is only from 15.5 psi.Chris
I-Speed USA
cescamilla@i-speedusa.com
12-27-2003, 02:48 PM
#9
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12-27-2003, 10:52 PM
#10
@Stoptech
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Join Date: Nov 2002
Location: San Francisco, CA
Posts: 2,416
Car Info: 2002 WRX Wagon
please post more dyno graphs when you get some larger injectors in that bad boy.
i think the 20G will be the limiting factor here, but it will be interesting to see what it can do at full tilt on race gas. i'd be surprised if boost can be pushed past 19 PSI on 91 octane.
and will somebody please confirm what the hell the internals are made of in the EJ257 so that we can stop guessing?!?!
good work i-speed, gotta love the experimenting... wish i could help.
i think the 20G will be the limiting factor here, but it will be interesting to see what it can do at full tilt on race gas. i'd be surprised if boost can be pushed past 19 PSI on 91 octane.
and will somebody please confirm what the hell the internals are made of in the EJ257 so that we can stop guessing?!?!
good work i-speed, gotta love the experimenting... wish i could help.
12-28-2003, 09:14 PM
#11
Not sure the 20G will be the limiting factor here, if I am not mistaken they have 4G63's pushing 10's with them, I would imagine that once Chris and Co get the fueling sorted the only stumbling block may be the stock US EJ20 cams.
That being said I would imagine it pull some serious numbers and with it's torque capibility would be fun to drive around town.
Mike
(510) 487-4447
www.mpjperformance.com
www.gb-motorsports.com
That being said I would imagine it pull some serious numbers and with it's torque capibility would be fun to drive around town.
Mike
(510) 487-4447
www.mpjperformance.com
www.gb-motorsports.com
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