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| Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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04-18-2024, 09:35 PM
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#1 |
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87mm High Comp Pistons
Toda Power Liner Kit Toyota GT-86 2012+
Toda Increased Capacity 2300 KIT Toyota GT-86 2012+ -or- HKS 2.2L Complete Engine FA20 Step 3 Subaru | Scion | Toyota 2013-2020 If I where to use these kits to increase engine capacity. Why is it seemingly impossible to find high quality 87mm High compression ratio pistons? I want 87mm Pistons, 12.5 cr or 12.7 cr. Or is it possible to modify the HKS Pistions before ordering? I want higher compression ratio and bigger bore. Also, I need the valves to match. -I dont care about FI(Forced Induction), as I am a NA (Naturally Aspirated) fan, and will remain that way. |
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04-19-2024, 06:06 AM
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#2 |
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with the cost of those is probably cheaper a long block fa24 and goes faster..
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04-19-2024, 07:58 AM
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Quote:
__________________
2014 GT86 Orange 6 Speed https://www.youtube.com/@spareroomracing3168/featured Build Thread: https://www.ft86club.com/forums/showthread.php?t=153004
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04-19-2024, 08:43 AM
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Waayyyy cheaper. I've seen entire FA24 running assembly with trans locally for 9k. |
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| The Following User Says Thank You to RToyo86 For This Useful Post: | Tatsu333 (04-20-2024) |
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04-20-2024, 04:39 AM
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#5 |
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It is impossible, so I decided to improvise. Custom made 90mm 11.5:1 pistons and custom sleeves. Modified OEM head gaskets. Just under 2.2L on the stock crank.
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04-20-2024, 04:44 AM
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#6 |
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Sleeves were made by LAsleeve. They'll likely make you another set if you ask them. Some of the forged piston manufacturers will do custom stuff. Gaskets are trickier... I got greedy and had to machine a bit out of stock ones to get 90mm. If you keep it sensible the stock gaskets are good for 89.5mm
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