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Need advice - tuning STi 6 to 2.5l
View Poll Results: Which sub-assembly do you think i should use?
Go 2.5 litre but must be 2.5 STi crank etc. 2 100.00%
Go 2.5 litre, can use Forrester sub-assembly 0 0%
Use 2004> WRX 2.0 sub-assembly - later technology so should be fine 0 0%
Repair 2.0 STi 6 crank as this is the best of all these options 0 0%
Voters: 2. You may not vote on this poll

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Old 23 Aug 2007, 05:36 PM   #16 (permalink)
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its not boost its flow capability on the 440's you'll run out of...........

generally speaking they will be fine up to around 340'ish BHP.............

if you need an STi9 crank, or any other parts we carry a large stock at good prices

online shop!!
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Old 23 Aug 2007, 06:08 PM   #17 (permalink)
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Originally Posted by stockcar View Post
perfectly normal for a modded engine, although part of it depends on how well you run it in

customers last spec M5 was on around 1-1.5ltrs /1000mile and perfectly fine by BMW stds
I just wouldnt like using a engine that uses that amount of oil, I'd feel like I'd be filling it up with oil nearly as much as I would petrol!!

I was going to say I'm only using the 440cc injectors but I'm running 1.2 bar of boost without a problem. The injectors are at the maximum capacity but I have a fuel reg to help push it that little bit more.. The car seems to run very nicely

If anything, I think I might have 550cc put in if I ever do replace the engine, but we'll see what happens when the time comes
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