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Old 10-03-2010, 09:59 PM   #1
sleepersaurusrex
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Member#: 259120
Join Date: Sep 2010
Location: Oklahoma
Vehicle:
03 WRX
Silver

Default 2.7L Stroker build for an 03 WRX

Just wanted to go over my proposed set up with you guys and see what you are thinking. I already have a brand new STi shortblock I will be building up over the next year and my plans are:

2.0 heads ported and polished
Cosworth 280 cams with springs and retainers etc....
Crower 2.7L stroker kit with sleeves
Lightened flywheel and crank pulley (not decided on the brand yet)
Upgraded intake manifold (need suggestions on brand that is good value for performance)
TGV delete
My own custom TMIC (which I will NOT give details on until the patent is officially pending )
850-900cc DW Injectors
Aquamist Methanol Injection Kit
Tial 44mm EWG

And I cannot decide for sure what turbo I want to go with, I want to keep the car a sleeper so a stock location turbo able to support my goal of 500whp on pump gas would be great! However I know my options are limited as far as stock location goes, I was considering the DOM 4 but I wouldn't rule out going rotated if it was 100% necessary. The reason for that being is that you can guess by my name that I want to keep the car a sleeper and looking as close to stock as possible. But if I do have to go rotated I would go with nothing else than a GT35R since it can handle all the power I would ever need. So any suggestions and/or comments would be greatly appreciated.

Thanks.
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Old 10-03-2010, 10:18 PM   #2
sense of nature
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?? pending....
sale....

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Hope your pockets are deep.. that kinda build is pricey IMO
G/L
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Old 10-03-2010, 10:25 PM   #3
sleepersaurusrex
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03 WRX
Silver

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Quote:
Originally Posted by sense of nature View Post
Hope your pockets are deep.. that kinda build is pricey IMO
G/L
Yeah they have some depth lol not the Grand Canyon or anything hahaha. But with anything I do I make sure that it is done properly and with parts that are worth putting in. But first I have to go through and replace the whole drive train PPG gears axles diffs etc. It will all be worth it in the end.
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Old 10-03-2010, 10:39 PM   #4
Nuke209
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Join Date: Feb 2006
Chapter/Region: MWSOC
Location: Minnesota
Vehicle:
2003 WRX
NF Performance

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Have you looked into a TS Borg Warner 83-75
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Old 10-03-2010, 10:56 PM   #5
Sinister redlines
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Chapter/Region: NWIC
Location: Port Orchard, WA
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05 HTA3586,BB 2.5L
CGM

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Just so happens I have a 2.7 kit for sale uber cheap!!!
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Old 10-04-2010, 12:03 AM   #6
AWD P & A
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Location: Mason, TN
Vehicle:
1999 2.5RS 2.35L
Black Diamond Pearl

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For your goal look into the new AMR CXR750. It's got a 8cm hotside with a 80lbs/min compressor side. I have the old Dom 4.0R with a 2.35L and it spools decently with the 8cm hotside. The Dom 4 has a 65lbs/min comprssor housing btw.

Actually Im wanting someone to try the AMR turbo first before I buy one
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Old 10-04-2010, 06:37 AM   #7
MartinSTi05
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Got a brand new 83mm crank I may be willing to part with. Not to mention the knowledge of running this setup with an aftermarket intake mani;-)
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Old 10-05-2010, 02:12 PM   #8
sleepersaurusrex
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At this point all my money is set to the side for a PPG straight cut syncro set and reinforce the rest of the drivetrain through the drive shaft shop. I am going with level 5 axles and getting their aluminum drive shaft to help reduce power train loss. So drivetrain first then I will go with building up the motor. I will keep your contact's though for when I am ready to start getting parts for the motor.
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Old 10-05-2010, 10:09 PM   #9
5432gone
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2003 Holset bug-I
WRB

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honestly on this build i would look at a Precison 6262 or maybe s300
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Old 10-05-2010, 10:34 PM   #10
juanmedina
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WRX VF39+E85 12.0, 121mph

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Quote:
Originally Posted by AWD P & A View Post
For your goal look into the new AMR CXR750. It's got a 8cm hotside with a 80lbs/min compressor side. I have the old Dom 4.0R with a 2.35L and it spools decently with the 8cm hotside. The Dom 4 has a 65lbs/min comprssor housing btw.

Actually Im wanting someone to try the AMR turbo first before I buy one
I think Mikey at Phatbotti Tuning TKR is going to try it soon
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Old 10-06-2010, 04:37 AM   #11
MartinSTi05
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Quote:
Originally Posted by 5432gone View Post
honestly on this build i would look at a Precison 6262 or maybe s300
+1 on a Borg Warner s300. I ran an s300 83-75 on my 2.7L and it made low 600's on a dynojet and was making 300Ft Lbs of torgue by about 3500 RPM. It was FTW!
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Old 10-06-2010, 11:47 AM   #12
project_skyline
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Location: Western Slope, Colorado
Vehicle:
03 Evo VIII
2011 STI

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Quote:
Originally Posted by AWD P & A View Post
For your goal look into the new AMR CXR750. It's got a 8cm hotside with a 80lbs/min compressor side. I have the old Dom 4.0R with a 2.35L and it spools decently with the 8cm hotside. The Dom 4 has a 65lbs/min comprssor housing btw.

Actually Im wanting someone to try the AMR turbo first before I buy one
80lbs a min my ass. I'd like to see a stock location turbo try and do that. I'd bet a grand it doesn't flow anything close to that.
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Old 10-06-2010, 01:19 PM   #13
sleepersaurusrex
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Yeah I am thinking about going with the DOM 4 XTR since it is a stock location turbo and I am trying to keep this car as much of a sleeper as possible. It has the capacity to support 600whp+ according to Blouch so I guess I will test that out and go from there.
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Old 10-06-2010, 03:58 PM   #14
project_skyline
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2011 STI

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Possibly with a good race fuel or e85 depending on dyno you could do it.

Looking forward to seeing your secret TMIC, 2.7 should be fun and make some nice tq.
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