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Old 08-20-2012, 11:43 PM   #59
Scooby Guru
Member#: 261612
Join Date: Oct 2010
Location: Minneapolis, MN
2002 WRX - 750WHP
9.5s @ 150mph


This new BW turbo looks very promising, but it's hard for me to compare to other stock location turbo's due to the fact that you need a new uppipe and downpipe to be able to run it. If someone already has an uppipe and downpipe (as many people do who are looking to upgrade their turbo), then it is getting dangerously close to rotated territory.

If this turbo meets your power goal, and spool is your absolute primary concern (and you're willing to spend the money to get it) then this might be perfect. If budget/simplicity are your main objectives, then there seems to be similarly performing turbo's that would work with the stock up/down pipe. If you want big power, then you're probably looking rotated. This turbo kind of seems to fit into a middle ground. Maybe it will be perfect for some (or possibly many) people.

Originally Posted by bilt2run View Post
Certainly nice numbers but..I think there are some 1.5xtr "e85" charts that look very similar to these,maybe a bit more taper, with same type mods, Correct me if im wrong...
Yeah, the TopSpeed dyno plots for the Dom1.5XTR look pretty similar. Stock motor, stock TMIC as well. The TopSpeed car had a full exhaust system though. See below (note the rpm's where the two turbo's hit 200ft-lbs, 300, 400: they are basically identical).

Originally Posted by socalLGT View Post
Car: 2008 Subaru Impreza WRX STi
Tuner: Me, Paul Leung of YimiSport Tuning
Dyno Info: Dynojet 424X
Ambient Temp: 95*F
Elevation: about 1300' ASL
Transmission: Stock 6MT
Gear: 4th
Peak HP at RPM: 440whp @ 5900rpm (E85). 350whp @ 5900rpm (CA 91 octane)
Peak Torque at RPM: 443ft/lbs @ 3600rpm (E85). 353ft/lbs @3600rpm (CA 91 octane)
Baseline hp/tq for a stock on same dyno: 230HP/255tq - 2008 STi
Target Boost: 25 PSI (E85), 22 PSI (91 Octane)
Target AFR: 12:1 (gasoline scale on E85), 10.9:1 on 91 octane
Fuel: E85 and CA 91 octane pump gas

- Full-Race uppipe and catted downpipe to locate a Borg Warner EFR7163 (2013 release turbo, one of only a handful that have made their way out in to the world) in stock location. Ready to bolt up to all OEM or aftermarket parts that will fit the stock turbo (inlets, TMIC's, FMIC's etc...)
- Fujitsubo Legalis R catback (with the 2.5" taper intact)
- Custom YimiSport 73mm CAI
- Custom YimiSport FPR kit
- APS turbo inlet pipe
- Grimmspeed hybrid EBCS/MBC boost control
- Deatschwerks 1000cc injectors
- Synergy 300lph fuel pump
- Cobb AP

Dyno Graphs:

Pump and E85
Originally Posted by TopSpeed View Post
TopSpeed Motorsports 2011 STI Project Car:

Dyno: Dyno Jet
Tuner: Douglas Wilks
Wheel HP: 377.61
Wheel TQ: 415.01
Ambient Temp: 85.47 F (23% Humidity)
Elevation: 1000ft (EST.)

Car Info
Year: 2011
Engine Management: Cobb AP
Turbo: Blouch Dom 1.5
Intercooler: Stock
Meth Kit: None
Injectors: Injected Dynamics 1000cc
Intake/Inlet: Stock Air Box/Perrin Inlet
Headers: Invidia Race Headers
Uppipe: Invidia
Downpipe: Invidia
CBE: Invidia

Here is an overlay of the Dom1.5 10cm & a 20gXT 10cm

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