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Old 03-19-2010, 03:30 AM   #1
EtoS
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Default 2.6l Track Motor build 2008 STi Maxwell Power Services

As the title says I'll be building a 2.6l track motor with Maxwell Power Services.

First a BIG thanks to all those involved:

Dominic Acia and Craig of Maxwell Power Services for the engine build
Geoff of Full Race for alot of technical feed back and turbo/exhaust
Geoff of Cygnus Performance for supplying most of the parts short of the longblock for this build


Short Block:



Maxwell Power Services Power Factor Track Edition 2.6l:

EJ257 Block


99.5mm JE custom pistons



Maxwell Power Services 83mm Billet Crankshaft


4340 I-Beam Standard length rods


ACL Race Bearings

Metal Jacket Harmonic Crank Pulley


Full Blueprint and Balance

Heads:

Maxwell Power Services Signature Series Heads:
CNC Ported Heads (30% exhaust flow gain/22% intake)
+1mm Ferrea Stainless Intake Valves
+1mm Ferrea Super Alloy Exhaust Valves
Ferrea Valve Springs with Ti Retainers
Kelford 220-c 272 Cams

Tuning
Element Tuning Hydra 2.6 EMS with Wideband 02

Turbo:

EFR 7670 .92 AR Twinscroll Turbo with Ceramic Coated Hotside and Blanket
Grimmspeed Boost Control Solenoid

Intake:

Fast Motorsports FMIC with DIY custom Reverse Intake Manifold
Grimmspeed Phenolic Spacer
GrimmspeedTGV Deletes

Exhaust:

Full Race TwinScroll Exhaust Manifold and Up-Pipe(Coated and Wrapped)
Full Race Downpipe
Magnaflow CBE


Oiling:

Maxwell Power Services 11mm oil Pump
Killer Bee oil pickup and sump


Accusump
YimiSports TMOC Kit

Cooling:

Koyo Radiator
Slim Radiator Fans
Grimmspeed Thermostat
Samco Hoses


Fueling:

Injector Dynamics 2200cc on 93 pump and e85
Element Tuning Hydramist
Pump 93, E85 and E98

Ignition:

NGK Spark Plugs
Optima Red Top

Clutch:
Carbonectics 3 Plate Carbon Clutch
SS clutch line



There are a few things still undecided. If anyone can give some suggestions on those I'd be more then willing to hear them out.

I'll update this as I decide on more things to put on or remember to put whatever I forgot on the list.
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Last edited by EtoS; 03-28-2011 at 04:16 PM.
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Old 03-19-2010, 10:53 AM   #2
Nuke209
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what fuel do you plan on running?
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Old 03-19-2010, 11:18 AM   #3
EtoS
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Quote:
Originally Posted by Nuke209 View Post
what fuel do you plan on running?
Pump 93 and E85.
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Old 03-19-2010, 04:00 PM   #4
mtcs
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sounds like a great build!!
GT3076R won't keep you entertained for long...

I just dumped mine and picked up a precision 6262SP....Great turbo! You should look into that as an option.
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Old 03-19-2010, 04:51 PM   #5
acssa
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who is cnc porting the heads?
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Old 03-19-2010, 06:20 PM   #6
Nuke209
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Quote:
Originally Posted by EtoS View Post
Pump 93 and E85.
I ran out of fuel on the ID1000cc, so we had to tap the FPR to raise up the fuel pressure.

ID2200cc with dual walboro should be fine.
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Old 03-19-2010, 07:09 PM   #7
EtoS
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Quote:
Originally Posted by acssa View Post
who is cnc porting the heads?
Maxwell Power Services.
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Old 03-19-2010, 07:11 PM   #8
25rsti
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seems like an exciting build, good luck with everything
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Old 03-21-2010, 04:00 PM   #9
D Money
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nice build, where are you from? Your location says Trenton, which is the town next to where I live. haha
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Old 03-21-2010, 04:09 PM   #10
hoagie rolls
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Why are you sticking with a top mount? All that power and then your not effectivly cooling down the intercooler...Front mount will show more gains.
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Old 03-21-2010, 04:33 PM   #11
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I would have used his 2.35 motor and had a huge powerband.
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Old 03-21-2010, 07:09 PM   #12
EtoS
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Quote:
Originally Posted by hoagie rolls View Post
Why are you sticking with a top mount? All that power and then your not effectivly cooling down the intercooler...Front mount will show more gains.
Top mount for less lag. It's not like I'll be using the stock top mount. You'd be surprised how well a good top mount can handle power and alot less lag then FMIC. Also makes more sense to use a TMIC for stock location turbo. I also will go FMIC when I go to phase 2 with a rotated turbo and twinscroll.
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Old 03-21-2010, 07:13 PM   #13
EtoS
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Quote:
Originally Posted by scby rex View Post
I would have used his 2.35 motor and had a huge powerband.
It's definitely a nice setup but not the one I want. Maybe with another subaru if I make a flat out race car. Definitely going to be checking that car out when I go to build the engine
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Old 03-21-2010, 07:21 PM   #14
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I don't get it... you're buying a FR 1.5 scroll header then down the road you're going to swap out the 1.5 scroll up pipe for the twin scroll up-pipe? With a build costing this much I don't see why you couldn't just go TS from the start.

And you mention about wanting less lag by using a TMIC yet you say this is a track build but have GT40's and GT42's listed as turbo options?
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Old 03-21-2010, 07:37 PM   #15
EtoS
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Quote:
Originally Posted by alcoolaid View Post
I don't get it... you're buying a FR 1.5 scroll header then down the road you're going to swap out the 1.5 scroll up pipe for the twin scroll up-pipe? With a build costing this much I don't see why you couldn't just go TS from the start.

And you mention about wanting less lag by using a TMIC yet you say this is a track build but have GT40's and GT42's listed as turbo options?
Yes cause the header is the same with a different up pipe from 1.5 to twinscroll. I could go twinscroll from the start but I don't want that much power from the get go. I'd rather move my way up in steps then go flat out. This engine is going to see alot of track time over the years hence why the big build. I don't see the problem with trying out different setups. And in this case whatever I lose from going to FMIC I could hand down to my fiances 05 STi.

And yes the gt40 and gt42 are options. Untill I see what the motor is really capable of that will be reserved for later judgement. So few have done a build like this so it's not like I can just do a search and find a whole page of what people encountered.
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Old 03-30-2010, 05:09 PM   #16
EtoS
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Updated information and new layout.
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Old 05-19-2010, 02:40 PM   #17
EtoS
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Updated.

So May 11th I flew from NJ to Seattle WA and took a shuttle to Arlington where Maxwell Power Services was located to do the engine build under the Build Your Own program they have. There I met the crew of 3- Dominic Acia, Craig and Wes. Dominic does the tunes/engineering/design, Craig does the engine builds among other things and Wes does the installs. I was there to learn how they put a 2.6 stroker together and take pics of the engine. Overall what a great bunch of guys and amazing facility they have there. I'll post up pictures of what they have to offer there.
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Old 05-19-2010, 03:10 PM   #18
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You're in good hands with them. Looking good!
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Old 05-19-2010, 03:43 PM   #19
Thran
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for the oil cooler, where are you going to mount it? and which kit did you get?
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Old 05-19-2010, 04:03 PM   #20
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I'd just skip the whole stock location turbo process if your planning on goin rotated. Also I had major issues with the kelfod 272/268 dual acvs cams and the ATP stock location 35r. But I was also running the stock ecu/cobb ap. My engine builder told me the cams were too big for the atp 35r.
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Old 05-19-2010, 05:40 PM   #21
Bariga
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just get twinscroll kit with 35R or 40R and tell dom to make you a 18 psi map, and when you feel like you tired of it go for 30psi map
+ that fullrace uppipe you wont sell it its waist of money to go that way
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Old 05-19-2010, 08:59 PM   #22
EtoS
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Quote:
Originally Posted by Thran View Post
for the oil cooler, where are you going to mount it? and which kit did you get?
The way things are looking I may skip the 1.5 scroll and go twinscroll so I'd do a top mount oil cooler setup.

Quote:
Originally Posted by Danomite View Post
I'd just skip the whole stock location turbo process if your planning on goin rotated. Also I had major issues with the kelfod 272/268 dual acvs cams and the ATP stock location 35r. But I was also running the stock ecu/cobb ap. My engine builder told me the cams were too big for the atp 35r.
Quote:
Originally Posted by Bariga View Post
just get twinscroll kit with 35R or 40R and tell dom to make you a 18 psi map, and when you feel like you tired of it go for 30psi map
+ that fullrace uppipe you wont sell it its waist of money to go that way
It's looking to go that route. I may go with a BW 35r comparable turbo. FMIC vs TMIC has different response which was what I wanted out of a 1.5 scroll TMIC setup. O well I guess the safer more powerful route is better to take
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Old 05-19-2010, 09:17 PM   #23
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If I were to do my turbo setup again i would have went rotated from the getgo and saved myself some hassle.
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Old 05-19-2010, 10:39 PM   #24
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Quote:
Originally Posted by EtoS View Post
The way things are looking I may skip the 1.5 scroll and go twinscroll so I'd do a top mount oil cooler setup.
Which one are you thinking about? i have been tossing the idea of going with a tmoc but i always heard about oil pressure isnt great traveling against gravity, wanted to read some more about it
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Old 05-20-2010, 12:31 AM   #25
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Cool... I look forward to seeing your build come together.

I really like the way Maxwell can do the build, install, and tuning all under one roof. Having seen so much finger-pointing when things go wrong and each step was done by a completely different company, there's no way I'd ever go that route. One stop shopping FTW.
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