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Old 11-03-2011, 09:18 AM   #1
bswilmington
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Default 06 Sti vs 08 Sti rods?

Does anyone know if there is any difference in 06 Sti rod vs 08 Sti rod.

What im mostly concerned with is weight difference, is there any?

As far as i know rod lenght should be the same unless someone elses knows differently
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Old 11-03-2011, 09:33 AM   #2
juanmedina
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I just know there are a little thicker, so I imagine they are heavier and stronger.... Idk
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Old 11-03-2011, 11:51 AM   #3
bswilmington
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Can anyone confirm weight is heavier and by how much?

Thanks for info juan.
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Old 11-05-2011, 01:44 PM   #4
theonlygreat
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I have rods from a newer EJ257 subaru shortblock, so there is no real year to it, but should be newer than 08. They weigh about 583g +/-1 on my digital scale. They have the number 14 cast into the side.

Last edited by theonlygreat; 11-05-2011 at 04:11 PM.
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Old 11-05-2011, 02:47 PM   #5
bswilmington
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Thank you, I was hoping that they wont be any higher than that. I found 589g in rod weight thread. I didnt know if 589g was newer rods or older ones.
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Old 11-05-2011, 03:53 PM   #6
Ryan314
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I don't think there is any difference at all from 04 to present... Nothing significant anyway.
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Old 11-05-2011, 04:24 PM   #7
2006whitesti
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Quote:
Originally Posted by Ryan314 View Post
I don't think there is any difference at all from 04 to present... Nothing significant anyway.

They are in fact different. Not sure what all was changed, but I know for a fact they are different.
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Old 06-07-2018, 01:10 AM   #8
nycyrus
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Default 06 Sti vs 08 Sti rods?

Was this ever resolved? I’m at this stage right now trying to determine if getting 2008 rods are any different from 2006. They have different part numbers. Is the difference like the 2008 crankshaft where they’re also nitrate coated ?
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Old 06-07-2018, 06:49 AM   #9
Titter
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Default 06 Sti vs 08 Sti rods?

sti rods havent changed in like 15 years. different part #s doesnt always mean the part has changed in subaru land.

it was 2012 when the crank got its nitride coating.
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Old 06-07-2018, 07:37 AM   #10
Bram
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Quote:
Originally Posted by Titter View Post
sti rods havent changed in like 15 years. different part #s doesnt always mean the part has changed in subaru land.

it was 2012 when the crank got its nitride coating.
Nitrate treated cranks were not made for very long. The majority of the cranks are induction hardened and NOT nitrated. Nitrated cranks are black, and induction heated cranks have the bands of colour change on the webbings etc that makes them look like they have been red hot before.

Alot of people mistakinely confuse induction hardened cranks as nitrated for some reason.
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Old 06-07-2018, 09:56 AM   #11
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Thanks for that!
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Old 06-07-2018, 11:52 AM   #12
Titter
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Default 06 Sti vs 08 Sti rods?

you can buy new nitride cranks today. so sayin they wernt made for very long is false. also im 99% sure they are still used in oem sti’s to this date.

https://www.flatironstuning.com/p-19...rankshaft.aspx

The Subaru Part # 12200AA430 which is the Nitride Treated Crank, superseded from the 12200AA330 heat treated.

i was wrog about the year though. it was 2010 (MY11)

Last edited by Titter; 06-07-2018 at 11:59 AM.
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Old 06-07-2018, 05:52 PM   #13
Bram
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Ok. Well i got a brand new short motor in 2012, which was sold to me as the nitrated crank motor, but it had an induction hardened crank in it.
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Old 06-08-2018, 07:26 AM   #14
Titter
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could have been New Old Stock. was it from a dealership or a 3rd party parts store? either way that sucks.
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Old 06-16-2018, 11:31 PM   #15
sponaugle
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As it happens, this is discussed here a tad - https://forums.nasioc.com/forums/sho...1#post45685836
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