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Old 27-07-2011, 11:08 PM   #1
zakjames
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Default AU I6 block power capability

How much power can the standard AU I6 block take before it decides to give up. Im looking at a full engine rebuild + the usual N/A internal work (minus stroke/forge) and was wondering how many ponies can I be looking at with the standard block. Also looking at a supercharger setup running low boost (8-11psi) so what could I safely expect from my I6 block?



(Also any threads already related to this question would be appreciated, couldnt find anything in my searches)

Cheers guys.

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Old 27-07-2011, 11:22 PM   #2
BOTTLEDUP
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Default Re: AU I6 block power capability

There is a turbo'd EL over here making well over 600rwhp with an AU 4 litre block, so I'd say you'll be pretty safe.
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Old 28-07-2011, 06:06 AM   #3
dansedgli
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Default Re: AU I6 block power capability

300rwkw would be on the limit for the stock rods IMO.

Change the rods and it's all good for lots more.
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Old 28-07-2011, 06:52 AM   #4
zakjames
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Default Re: AU I6 block power capability

coolio cheers guys, so the stnd pistons + rings would be up for the job then.
and on a side note is there a stroker kit for the 4.0L ? I emailed JMM asking if they had a kit or if they knew where I could find one but am still awaiting reply. Cheers.
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Old 28-07-2011, 06:55 AM   #5
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Default Re: AU I6 block power capability

Craigs au6ute (I think thats his name) has run over 350kw since 2005. Not sure on whats in the bottom end, but there you go.
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Old 28-07-2011, 11:02 AM   #6
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Default Re: AU I6 block power capability

The block will be fine your potential application Zak. The standard rods should handle the psi you quoted up to a certain point too. It will boil down to your tuner and how good he is.

But essentially, you block should be good to go without major drama's.
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