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  #1  
Old 23-06-2012, 05:51 PM
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Default Built Engine Lifespan

Hi all,

As the title suggest, I am interested to hear people's opinions and experiences on how long their built engine has lasted.

I have a a GC8 version 6 STI, 2.5 short block conversion with forged internals. Engine has done just over 60 000km since the build and is still going strong. Still has the VF 28 turbo, stock intercooler and injectors. Very safe tune, 186KW ATW.

I am looking at doing further mods to the car and turning up the wick, wondering if I am being to ambitious with a motor that has done that many
k's.

cheers,

boydey

Last edited by boydey; 02-04-2018 at 05:22 PM.
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Old 23-06-2012, 05:55 PM
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Old 23-06-2012, 06:06 PM
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does you fully forged motor have oil phasing of the crank done ?
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Old 23-06-2012, 06:11 PM
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How was it built and by who?
Was it actually a "built" short block or a factory EJ257?
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Old 23-06-2012, 06:33 PM
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Quote:
Originally Posted by seagull View Post
does you fully forged motor have oil phasing of the crank done ?
Hi seagull,
not that I am aware of, the previous owner had the engine built and i cant find anything to suggest it was. What is the benefit of oil phasing the crank?
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Old 23-06-2012, 06:35 PM
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Quote:
Originally Posted by GX-REX View Post
How was it built and by who?
Was it actually a "built" short block or a factory EJ257?
Hi GX-REX,

it is a built short block so it still retains the stock heads from the 207. RTE did the build in 2005.
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Old 23-06-2012, 06:40 PM
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Quote:
Originally Posted by boydey View Post
Hi GX-REX,

it is a built short block so it still retains the stock heads from the 207. RTE did the build in 2005.
Sounds like you have just got forged pistons in it:
ie: it will still have issues when you force more than 18 or so psi into the bores. Keep it under this and it should run as well as it does now for a fair while yet. Service history is where it is really important in this case.
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Old 23-06-2012, 06:49 PM
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reading here
http://www.perth-wrx.com/vb/mechanic...nk-2-5ltr.html
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Old 23-06-2012, 07:27 PM
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Quote:
Originally Posted by phizzle View Post
Sounds like you have just got forged pistons in it:
ie: it will still have issues when you force more than 18 or so psi into the bores. Keep it under this and it should run as well as it does now for a fair while yet. Service history is where it is really important in this case.

Hi phizzle,

Has excellent service history, I am mates with the previous owner. The 2.5 short block was first installed with factory internals. Did not last long, broken ring land So the current setup is actually the second build.

Parts from the build list:
CP forged pistons
Eagle forged connecting rods
ARP Head Studs
Looks like the original crank was reused. This was a US STI 2.5 short block so not sure what the specs are.
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Old 23-06-2012, 07:36 PM
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some 2.5 short blocks have nitrated cranks
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