Lucas 244 Report post Posted September 11, 2017 Capacity Upgrade Kit developed by taking advantage of knowledge and experience acquired through D1 drift and time attack at Tsukuba Circuit.This kit was designed exclusively for the FA20 engine by meticulous analysis and experiment. HKS delivers this kit with “Made in Japan” quality.High performance specifications withstanding 550PSThis kit is for people want to upgrade all the way including the engine internals. Stock HKS 2.1L Piston Bore dia. mm 86 86 Displacement cc 1998.2 2091.2 Comp. Ratio (measured) G/K 0.5 mm 12.1 12.4 G/K 0.6 mm 12 12.3 G/K 0.7 mm 11.9 12.1 G/K 1.0 mm 11.5 11.8 Boring/Horing – n/n Remarks Cast D. ignition Forged D. ignition Con’rod Big end dia. 53 51 (RB & SR) Bolt size M9.5 M8 Remarks Split I-beam Split I-beam Crankshaft Stroke mm 86 90 Main journal dia. 68 68 Pin journal dia. 50 48 Remarks Forged Forged In order to maintain the engine block strength, the stock bore size is maintained meaning there is no need for cylinder liners Reduces the cost of installation as liners, bore & hone and block facing processes are unnecessary. Don't forget, this kit isn't supposed to give you more power on it's own. It allows you to have more power safely, thanks to strengthened internals. So, you won't have to be worried about your engine when pushing 350+ BHP https://www.part-box.com/21004-at002-hks-2.1l-capacity-upgrade-kit-86.0mm-pistons-toyota-gt86-subaru-brz?search=21004-AT002&description=true £3132 Delivered Share this post Link to post Share on other sites
Tareim 343 Report post Posted September 11, 2017 23 minutes ago, Lucas@PartBox said: Don't forget, this kit isn't supposed to give you more power on it's own. It allows you to have more power safely, thanks to strengthened internals. So, you won't have to be worried about your engine when pushing 350+ BHP the rods aren't strengthened though are they? at the very least they are not forged Share this post Link to post Share on other sites
Lucas 244 Report post Posted September 11, 2017 8 minutes ago, Tareim said: the rods aren't strengthened though are they? at the very least they are not forged They are I-Beam rods. They are not as strong as H-Beam in boxer engines, but they are significantly stronger than the stock ones. If you look at Manley's I-Beam con rods for FA20, they are rated to 1000bhp. Share this post Link to post Share on other sites
TTR 509 Report post Posted September 11, 2017 @smudge think you should get this! 4 SimonB95, Mike, surrey86 and 1 other reacted to this Share this post Link to post Share on other sites
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