'07 2.5 Impreza Prodrive - NEED More Power!
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'07 2.5 Impreza Prodrive - NEED More Power!
Evening all,
Essentially I've got a 2007 2.5 Impreza Prodrive which is 100% standard.
I've already ordered a Tein Coilover kit, AP Racing brake kit (all round) etc etc, but I'm after more power.
What are these blocks good for before I need to started thinking about pistons, rods etc?
I'm looking for around 400bhp for now, nice and reliable and not too crippling on the pocket.
Any info is much appreciated, and I apologise in advance for my newbie-ness!
Cheers all,
Ryan
Essentially I've got a 2007 2.5 Impreza Prodrive which is 100% standard.
I've already ordered a Tein Coilover kit, AP Racing brake kit (all round) etc etc, but I'm after more power.
What are these blocks good for before I need to started thinking about pistons, rods etc?
I'm looking for around 400bhp for now, nice and reliable and not too crippling on the pocket.
Any info is much appreciated, and I apologise in advance for my newbie-ness!
Cheers all,
Ryan
#6
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These blocks are so unpredictable its impossible to say what the safe limit is. Some people have had failures on standard blocks where as others have been lucky and run higher figures. Mine has been running around 390bhp for about 4 years now but thats on low boost (1.2 bar) and with arp 11mm headstuds. Im currently having a 2.1 built for mine but if i were in your position i'd look at going with a good set of forged pistons, some cosworth head gaskets and some decent headstuds. Then get a decent panel filter, and a remap. I'd expect to see around 360bhp with peace of mind
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Cheers guys. I guess future proofing the car isn't a bad thing either.
What rod/piston combos do you guys normally go for? I don't mind maxing out the standard turbo and then upgrading to a bigger snail later down the line.
What about uprated valve sets, fuel pumps, injectors etc? Doesn't my PPP already come with a few upgrades in that respect?
Thanks
What rod/piston combos do you guys normally go for? I don't mind maxing out the standard turbo and then upgrading to a bigger snail later down the line.
What about uprated valve sets, fuel pumps, injectors etc? Doesn't my PPP already come with a few upgrades in that respect?
Thanks
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