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-   -   Just bought a stock Subaru STI Hatch what mods? (https://www.scoobynet.com/engine-management-and-ecu-remapping-453/1052245-just-bought-a-stock-subaru-sti-hatch-what-mods.html)

SubaruHatchSTI 20 January 2018 07:20 PM

Just bought a stock Subaru STI Hatch what mods?
 
Hi guys new to the forum, just got myself a clean unmodified Subaru sti hatchback 2008 and would like some advice on best performance mods to do, any help much appreciated thank you!

Tidgy 20 January 2018 07:32 PM

rebuild the engine with forged rods and pistons is a good sart

spindle121 20 January 2018 07:33 PM

Was thinking about the same thing. ,,,

SubaruHatchSTI 20 January 2018 09:01 PM

Ah just bought it on 60k and I had a full rebuild at 58 but just used oem Subaru parts. Is this a bad thing I know forged is a lot better how good would a oem rebuild be, likely to fail again?

spindle121 20 January 2018 10:08 PM

Who done the build ,,,,

hedgecutter 20 January 2018 10:14 PM

Just enjoy it whilst being ready to get it forged if it goes again; it should be good for awhile without pushing it, but a custom map will make it safer. Bit crazy to rebuild oem though. At that mileage I would refresh the suspension and brakes first, rather than the usual panel filter/exhaust/map upgrade

Bazil_SW 21 January 2018 12:13 AM

Be prepaid for needing a forged rebuild as has been said. I would go for forged pistons, con rods, uprated head studs (controversially stock gaskets) at the very least. Otherwise I love the low end torque from a 2.5 lump :-)

Tidgy 21 January 2018 12:36 AM


Originally Posted by SubaruHatchSTI (Post 11990399)
Ah just bought it on 60k and I had a full rebuild at 58 but just used oem Subaru parts. Is this a bad thing I know forged is a lot better how good would a oem rebuild be, likely to fail again?

it's pure pot luck, subaru made a monkeys job of building the 2.5 so they have a much higher failure rate than most cars. just enjoy it.

Built right its a cracking engine though

SubaruHatchSTI 21 January 2018 01:17 AM

Engine was rebuilt by TD racing just googled them and seen a thread from this site with good feedback Subaru specialist so i reckon they do as good of a job out the oem parts as possible shame it isn’t forged but yeah ile enjoy it while I can. Thinking to just keep it simple then with an pipe and a new map. Any of you guys reccomend a good pipe for these or anywhere to look for one? Thank you

hedgecutter 21 January 2018 07:16 AM

Tidgy, there is some suggestion now that the 2.5 and diesel failures, which were in the same build period, could be due to the Kobe Steel scandal . However this doesn't explain why others didn't suffer the same. Kobe was/is a major supplier to Subaru.

Matty81 21 January 2018 09:01 AM

I’d probably go for a map as previously said. Subaru made a balls up of the standard map they put on the 2.5. Where’s the pics ?

Matty81 21 January 2018 09:03 AM

I’d probably go for a map as previously said. Subaru made a balls up of the standard map they put on the 2.5. Where’s the pics ?

spindle121 21 January 2018 09:08 AM

Hi just to say I was running my hatch @ 360 bhp on all standard inturnals till my build was done but think i was one of the lucky ones as on stip down Big ends where ready to let go so as to say regular oil change and keep an eye on all your levels. Is the right way.

ZANY 21 January 2018 05:16 PM


Originally Posted by fawor (Post 11990540)
fake Sti gauges:lol1:
go polish Your fake spec c and tubbs knob Zany:)

:facepalm:

I’m here kiddo :brickwall

ZANY 21 January 2018 05:18 PM


Originally Posted by fawor (Post 11990512)
nothing will help apart sale

I say the same thing when u drop your mum off but your so persistent she’ll do so well when she has her dentures out :lol1:

Tidgy 22 January 2018 01:09 PM


Originally Posted by hedgecutter (Post 11990452)
Tidgy, there is some suggestion now that the 2.5 and diesel failures, which were in the same build period, could be due to the Kobe Steel scandal . However this doesn't explain why others didn't suffer the same. Kobe was/is a major supplier to Subaru.

no mate, the engines have been revised slightly over the years so the new ones are much newer. :thumb:

salsa-king 02 February 2018 05:55 PM

not everyone dies in the Plague of 1665 :)


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