2.5L Motor Buildup pics
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I'm too lazy to post, so you are just going to have to go to my other post ( http://www.cti-club.com/forum/viewtopic.php?t=156 ) to see the images.
But here's what up so far...
Completed items:
Motor in Car
Manifold on
Injectors and fuel rails on
exhaust and turbo on
IC mounted to the front
p7's on the car
Coming Soon:
Finished Powdercoating parts (changed color to a rich metallic red)
Accy. Brackets onto block as well as accy.
Fuel and coolant piping
Wiring
-Paul
But here's what up so far...
Completed items:
Motor in Car

Manifold on
Injectors and fuel rails on
exhaust and turbo on
IC mounted to the front
p7's on the car
Coming Soon:
Finished Powdercoating parts (changed color to a rich metallic red)
Accy. Brackets onto block as well as accy.
Fuel and coolant piping
Wiring

-Paul
Last edited by paulnose; Apr 20, 2003 at 10:58 AM.
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Very nice... is this going into a GC8?
Got a couple questions too:
What is the CR with your new pistons?
Where did you source the block and head castings?
Are you using the Eastwood home powdercoating kit? I've got to get some details on that!
What are your tranny plans?
Thanks,
Dan
Got a couple questions too:
What is the CR with your new pistons?
Where did you source the block and head castings?
Are you using the Eastwood home powdercoating kit? I've got to get some details on that!
What are your tranny plans?
Thanks,
Dan
your build up looks awesome.
Hmmm .... How come you didn't port the heads? It seems like a good idea, and it couldn't hurt.
Otherwise nice build up. Can't wait to see the end product.
Hmmm .... How come you didn't port the heads? It seems like a good idea, and it couldn't hurt.
Otherwise nice build up. Can't wait to see the end product.
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Sorry for the delay in reply, it didn't e-mail me the fact that the thread was replied to.
Okay, to answer the questions....
Adamrs:
The Manifold will be sandblasted clean to the raw cast aluminum look. Then it will be powdercoated clear. I am also doing the same for the alternator housing. The are all currently blue, kind of cusco bluish.
As far as other tricks, I'm working on trying to get a wrx powersteering bracket on there for clearing of the intake pipe for the turbo. But other than that it'll be pretty standard, I ordered the 850cc custom injectors yesterday, and am just finishing up the rest of the powdercoating today.
ScoobyRS25:
If you mean the intake manifold, increasing flow would be marginal at best.
If you are refering to the heads, cobb is a rip off at $2500 for the work. As far as going to any old place to do it, head design and flow is very specialized. It take some junking of heads before a final product that works well can be had.
So to answer you question, yes better flow on the heads would have been nice, but I was not willing to pay all that money for Cobb to do the work, and do not feel there are many that can do the work properly on the subie heads.
meebs:
Might want to contact tonyb, he is the webmaster of the cti-club website, although he has gotten much flak from the New England chapter of the North American Impreza Owners Club(which CTI-club is a part of, but they tend to hold all the events in the northern states, making them very unaccessable to us CT people.) But this is all politics, so I'd rather not get into that. But tonyb does all the design for the site.
DanMan:
Yes this motor is going into the old GC8, Sorry to disappoint all you WRX fanatics, Will have pics of my license plate up when it gets here, CT dmv has already reserved it for me
you wrx'ers should love it.
The compression ratio of the motor with the new pistons will be 8.5:1 This number will be double checked however before entering it into the autronics. (I have to cc out the old heads, and gasket. (deck clearance on the motor is around .010"))
The block was sourced from someone on i-club (sorry I can't remember your name) it is a phase II turn in block for piston slap, approximately 17,000 miles on it.
The head castings came from my local subaru dealer http://www.wiltonsubaru.com/ ask for Alan in parts, he was a great help to me. Let me borrow the parts manual (still have to return it, but might catalogue it in the computer first with the digicam) (much faster than the scanner, but doesn't look as good) the castings are available seperate from the whole assembly as PN: 11039AB265 for 98-2.5L SOHC EJ251+EJ253
Yes this is the eastwood home powdercoating kit, which is decent, but has it's limitations. I originally almost chromed everything and was going to blue over that, however the voltage output of the home kit is not strong enough to effectively attach the topcoat to the chrome. Therefore I had to spend an entire day striping and sandblasting all the crap. Then just applied the topcoat, which actually worked out, cause I like the finish of the translucent blue over the casting more than the mirror blue when it was over the chrome.
For the tranny, I'm gonna whine, Currently will be running the stock gearbox with the ACT street disk I've had for over a year sitting in my room. This is only temporary, as I will be upgrading to the MRT Straight cut Dogbox in the spring.
Imprezer:
Thanks
BongMan:
Thanks
and see above for head answer.
Thank you all for your input, I will have more pictures up this weekend when I will have the last few parts I forgot to order til this week (crush washers for the block plugs)
-Paul
Oh, attach files is enabled, here is the blue:
Okay, to answer the questions....
Adamrs:
The Manifold will be sandblasted clean to the raw cast aluminum look. Then it will be powdercoated clear. I am also doing the same for the alternator housing. The are all currently blue, kind of cusco bluish.
As far as other tricks, I'm working on trying to get a wrx powersteering bracket on there for clearing of the intake pipe for the turbo. But other than that it'll be pretty standard, I ordered the 850cc custom injectors yesterday, and am just finishing up the rest of the powdercoating today.
ScoobyRS25:
If you mean the intake manifold, increasing flow would be marginal at best.
If you are refering to the heads, cobb is a rip off at $2500 for the work. As far as going to any old place to do it, head design and flow is very specialized. It take some junking of heads before a final product that works well can be had.
So to answer you question, yes better flow on the heads would have been nice, but I was not willing to pay all that money for Cobb to do the work, and do not feel there are many that can do the work properly on the subie heads.
meebs:
Might want to contact tonyb, he is the webmaster of the cti-club website, although he has gotten much flak from the New England chapter of the North American Impreza Owners Club(which CTI-club is a part of, but they tend to hold all the events in the northern states, making them very unaccessable to us CT people.) But this is all politics, so I'd rather not get into that. But tonyb does all the design for the site.
DanMan:
Yes this motor is going into the old GC8, Sorry to disappoint all you WRX fanatics, Will have pics of my license plate up when it gets here, CT dmv has already reserved it for me
you wrx'ers should love it. The compression ratio of the motor with the new pistons will be 8.5:1 This number will be double checked however before entering it into the autronics. (I have to cc out the old heads, and gasket. (deck clearance on the motor is around .010"))
The block was sourced from someone on i-club (sorry I can't remember your name) it is a phase II turn in block for piston slap, approximately 17,000 miles on it.
The head castings came from my local subaru dealer http://www.wiltonsubaru.com/ ask for Alan in parts, he was a great help to me. Let me borrow the parts manual (still have to return it, but might catalogue it in the computer first with the digicam) (much faster than the scanner, but doesn't look as good) the castings are available seperate from the whole assembly as PN: 11039AB265 for 98-2.5L SOHC EJ251+EJ253
Yes this is the eastwood home powdercoating kit, which is decent, but has it's limitations. I originally almost chromed everything and was going to blue over that, however the voltage output of the home kit is not strong enough to effectively attach the topcoat to the chrome. Therefore I had to spend an entire day striping and sandblasting all the crap. Then just applied the topcoat, which actually worked out, cause I like the finish of the translucent blue over the casting more than the mirror blue when it was over the chrome.
For the tranny, I'm gonna whine, Currently will be running the stock gearbox with the ACT street disk I've had for over a year sitting in my room. This is only temporary, as I will be upgrading to the MRT Straight cut Dogbox in the spring.
Imprezer:
Thanks

BongMan:
Thanks
and see above for head answer.Thank you all for your input, I will have more pictures up this weekend when I will have the last few parts I forgot to order til this week (crush washers for the block plugs)
-Paul
Oh, attach files is enabled, here is the blue:
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Latest Pics are up, the motor is in the car, many many changes to original design plan....
http://www.cti-club.com/forum/viewtopic.php?t=156
-Paul
http://www.cti-club.com/forum/viewtopic.php?t=156
-Paul
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That's awesome man.
I gotta ask though, where'd you get all that nice shiny factory fastening hardware (bolts and what not).
I just did a swap on a buddies car and we had to use all the grimy ones off his old motor
Did you get the 17.5 housing on the SR40 or a 20? You sure its gonna flow enough for all that motor (and fuel)?
I can't wait unitl I have time to a project like this... oh, and the patience
Dan
I gotta ask though, where'd you get all that nice shiny factory fastening hardware (bolts and what not).
I just did a swap on a buddies car and we had to use all the grimy ones off his old motor
Did you get the 17.5 housing on the SR40 or a 20? You sure its gonna flow enough for all that motor (and fuel)?
I can't wait unitl I have time to a project like this... oh, and the patience

Dan
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Dan,
All the shiny factory stuff, which is everything (only the case, crank, and rocker assembly are used) came from Wilton Subaru in Wilton, CT. I spent many hours looking through the parts catalogs and listing all parts I needed and ordering them. I will warn you however, the Subaru hardware is extremely expensive and adds up quickly, my total list bill at Wilton Subaru so far has been a little over $4k.
As for the Turbo, I'm pretty sure it's the 17.5, it was a saga to just get the turbo, so I just took whatever SR40 they gave me, which is probably the recommended 17.5. It's really gonna have an effect on the spooling, and the car isn't even running yet and I'm already thinking of the SR50, but I want a very responsive motor, so it's going to be very dependant on when this thing produces full boost to whether I upgrade or not.
All the shiny factory stuff, which is everything (only the case, crank, and rocker assembly are used) came from Wilton Subaru in Wilton, CT. I spent many hours looking through the parts catalogs and listing all parts I needed and ordering them. I will warn you however, the Subaru hardware is extremely expensive and adds up quickly, my total list bill at Wilton Subaru so far has been a little over $4k.
As for the Turbo, I'm pretty sure it's the 17.5, it was a saga to just get the turbo, so I just took whatever SR40 they gave me, which is probably the recommended 17.5. It's really gonna have an effect on the spooling, and the car isn't even running yet and I'm already thinking of the SR50, but I want a very responsive motor, so it's going to be very dependant on when this thing produces full boost to whether I upgrade or not.
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rentankonko,
As far as plans for the rest of the car. I'm going to beef up the drivetrain with either sti hardened drivetrain mounts (already have engine and tranny's) or with urethane mounts. I'm going to go with an MRT straight cut gears on all gears, still deciding on diffs, but those will get upgraded with the tranny.
Then for suspension, I've always looked towards the DMS 50mm, but that's not set in stone, and is way down the road
Brakes are my next upgrade after the drivtrain. I really haven't decided at all what to get. I'm probably gonna wait until the STi parts become available to check on the brembo setup. Then decide between that or probably stoptechs. I still want the prodrive/alcon WRC 366/305 6/4 tramac setup, but no one will sell them, I'll probably contact prodrive direct again later, they gave me SPD tuning as a source, and Mike wasn't helpful.
Body, most likely prodrive wing and front lip, and morettes with full HID conversion (my fogs are already done)
For the engine I have a few things left, I need to make the oil cooler later before I really start beating on her. The oil cooler will be top mounted where the 'stock' intercooler would have been if the 2.5 came turbo so the hood scoop will still be funtional. I also want to upgrade the radiator (one of the top mounts snapped anyways, so it needs replacing, epoxied together for now)
As for everything else, powdercoating all undercarriage components to keep it rust free and pretty, oh and aluminum control arms, anti lift kit, light weight rear beam, and a few other misc things.
Interior got my STI RA steering wheel coming in tomorrow, have the STI Ti shift ****, getting STi SSK when I do the tranny, and have the STi pedals on now. I will be putting in new seats at some point, and replacing the carpet with something a bit more plush.
MORE PICS TONIGHT.... IC mounted to the car, Interior (front is completely striped, just a mess of wires, it's funny), My pedals, My shifter, all the powdercoated stuff on the motor.
-Paul
Any other questions feel free to ask, sorry for the length of this post, but it was a all incompassing question.
As far as plans for the rest of the car. I'm going to beef up the drivetrain with either sti hardened drivetrain mounts (already have engine and tranny's) or with urethane mounts. I'm going to go with an MRT straight cut gears on all gears, still deciding on diffs, but those will get upgraded with the tranny.
Then for suspension, I've always looked towards the DMS 50mm, but that's not set in stone, and is way down the road
Brakes are my next upgrade after the drivtrain. I really haven't decided at all what to get. I'm probably gonna wait until the STi parts become available to check on the brembo setup. Then decide between that or probably stoptechs. I still want the prodrive/alcon WRC 366/305 6/4 tramac setup, but no one will sell them, I'll probably contact prodrive direct again later, they gave me SPD tuning as a source, and Mike wasn't helpful.
Body, most likely prodrive wing and front lip, and morettes with full HID conversion (my fogs are already done)
For the engine I have a few things left, I need to make the oil cooler later before I really start beating on her. The oil cooler will be top mounted where the 'stock' intercooler would have been if the 2.5 came turbo so the hood scoop will still be funtional. I also want to upgrade the radiator (one of the top mounts snapped anyways, so it needs replacing, epoxied together for now)
As for everything else, powdercoating all undercarriage components to keep it rust free and pretty, oh and aluminum control arms, anti lift kit, light weight rear beam, and a few other misc things.
Interior got my STI RA steering wheel coming in tomorrow, have the STI Ti shift ****, getting STi SSK when I do the tranny, and have the STi pedals on now. I will be putting in new seats at some point, and replacing the carpet with something a bit more plush.
MORE PICS TONIGHT.... IC mounted to the car, Interior (front is completely striped, just a mess of wires, it's funny), My pedals, My shifter, all the powdercoated stuff on the motor.
-Paul
Any other questions feel free to ask, sorry for the length of this post, but it was a all incompassing question.


