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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain.


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Old 01-18-2015, 12:56 PM   #1
ChrisD
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Recommended Forged Con Rods?

I'm picking my GT86 up next week and am planning to get a stage 3 or stage 4 AVO turbo installed, so obviously quite a lot more power than the standard engine was ever designed to handle and it seems like a few people with 300+ bhp have ended up with con rods smashing through their engines... So I'm trying to find some forged connecting rods to put in before I get the turbo installed.

Can anyone recommend any that I can buy in the UK? I've found a few but I have no idea which are good or bad, and some of them I can't seem to get hold of in the UK anyway.

Also, would you say forged pistons would be necessary too or is that going a bit over the top for 300 - 400 bhp ?

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Old 01-18-2015, 04:54 PM   #2
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If your going to crack the motor open you might as well do a full build and do the pistons and anything else you might want.

Last edited by dabocx; 01-18-2015 at 05:39 PM.
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Old 01-18-2015, 05:28 PM   #3
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yeah no reason to not minus well, unless of course you can't add well.
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Old 01-18-2015, 06:16 PM   #4
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If your going to crack the motor open you might as well do a full build and do the pistons and anything else you might want.
Yeah I probably will get forged pistons too but I've already found some of those. It's the con rods I'm struggling to find in the UK
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Old 01-20-2015, 09:07 AM   #5
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OK so I emailed Carrillo and they said the following:

"We do have pro-H style connecting rods in stock for this application under part number SB_AFA20_1HS_5090B6W and the cost per set would be $1472.00. Our main distributor in the UK would be Performance Unlimited - http://www.performanceunlimited.co.u...carrillo-rods/ "
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Old 01-21-2015, 02:53 AM   #6
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Now thats a bad @* thread right there!
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Old 01-21-2015, 03:51 AM   #7
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You could buy Pauter Machine from the U.S. and deal with import tax (if any). It might work out to be cheaper than the Carrillos.
http://pauter.com/shop/rods/subaru/s...brz-asym-rods/
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Old 01-21-2015, 06:26 AM   #8
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Old 01-21-2015, 06:33 AM   #9
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HKS Stroker kit?
http://www.hks-power.co.jp/en/produc...city/fa20.html
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Old 01-21-2015, 06:43 AM   #10
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All that money and effort for just an additional 93cc and 8kW at the engine? Note that the dyno graph is with an aftermarket camshaft as well.
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Old 01-21-2015, 06:46 AM   #11
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All that money and effort for just an additional 93cc and 8kW? Note that the dyno graph is with an aftermarket camshaft as well.
Yeah clearly it's not meant for NA applications, that would be total overkill. But if you're gonna go the FI way, I reckon it's the best internals kit out there.
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Old 01-21-2015, 06:47 AM   #12
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Yeah clearly it's not meant for NA applications, that would be total overkill. But if you're gonna go the FI way, I reckon it's the best internals kit out there.
I'm thinking Element Tuning might disagree with you.
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Old 01-21-2015, 12:01 PM   #13
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Yeah clearly it's not meant for NA applications, that would be total overkill. But if you're gonna go the FI way, I reckon it's the best internals kit out there.

I ran pretty much all HKS parts on my Evo way back as they were some of the first readily available parts out. While they worked good and the quality was great it wasn't long before better cheaper options became plentiful, i imagine that will be the case here.
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Old 01-21-2015, 03:42 PM   #14
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I hate when people just put that... because it makes me think I've asked a really dumb question that everyone is going to flame me for lol
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