{"product_id":"nissan-rb30et-ross-racing-forged-piston-8-5","title":"Nissan RB30ET Ross Racing Forged Piston (8.5:1)","description":"\u0026lt;h4\u0026gt;Ross Racing Forged Pistons to suit RB30ET\u0026lt;\/h4\u0026gt;\r\n\u0026lt;p\u0026gt;These are a custom piston made by Ross for Spool Imports.\u0026lt;\/p\u0026gt;\r\n\u0026lt;p\u0026gt;Pistons are available in:\u0026lt;\/p\u0026gt;\r\n\u0026lt;ul\u0026gt;\r\n\u0026lt;li\u0026gt;Compression Ratio: 8.5:1\u0026lt;\/li\u0026gt;\r\n\u0026lt;li\u0026gt;Bore Sizes: 86.5mm \u0026lt;\/li\u0026gt;\r\n\u0026lt;li\u0026gt;0.225” wall Carbon steel\u0026amp;nbsp;\u0026lt;\/li\u0026gt;\r\n\u0026lt;li\u0026gt;Pistons come with rings, gudgeon pins and pin locks\u0026lt;\/li\u0026gt;\r\n\u0026lt;li\u0026gt;Forged 2618\u0026lt;\/li\u0026gt;\r\n\u0026lt;\/ul\u0026gt;\r\n\u0026lt;p\u0026gt;Rated at 1000HP by Ross Racing.\u0026lt;\/p\u0026gt;\r\n\u0026lt;h4\u0026gt;Ross Racing Pistons:\u0026lt;\/h4\u0026gt;\r\n\u0026lt;p\u0026gt;All ROSS Racing Pistons (since 1985) have been forged from 2618 billet bar stock and have been heat treated and aged to a T61 condition (2618-T61). 2618-T61 is the material that is used when fatigue resistance and durability are of prime importance by all premium racing piston manufacturers.\u0026lt;\/p\u0026gt;\r\n\u0026lt;p\u0026gt;This material has less than 1% silicon particulate content. High silicon content pistons (forged from 4032 or MS75) will not stand up to the most extreme stress placed on many racing pistons. If a crack starts to form in a high silicon piston it will continue until the piston experiences a catastrophic failure. Simply stated, adding sand to the aluminum only makes it more brittle. In the rare instance of a 2618-T61 piston cracking, the crack will continue to an area where the stress is not as great and will then stop. Another advantage of 2618-T61 over the high silicon pistons is the ability to keep its shape under extreme pressure and high RPM's. \"Skirt Shrinking\" is not a problem with ROSS Racing Pistons.\u0026lt;\/p\u0026gt;\u003ch2\u003eAvailable options\u003c\/h2\u003e\u003cul\u003e\u003cli\u003ePiston Option: +0.5mm \/ 86.5mm 8.5:1\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eEngine build fitment\u003c\/h2\u003e\u003cp\u003eRB30ET (SOHC). Match the selected dimensions, engine generation and rotating assembly specification before machining or assembly.\u003c\/p\u003e\u003ch2\u003eInstallation and BBT workshop support\u003c\/h2\u003e\u003cp\u003eConfirm finished bore size, piston-to-wall clearance, compression height, pin specification, ring gaps and valve clearance against the supplied piston documentation.\u003c\/p\u003e\u003cp\u003eBuilt by Boost \u0026amp; Tune is an authorised Spool Imports dealer and can assist with component selection, engine assembly and tuning requirements for your build.\u003c\/p\u003e","brand":"Ross Racing Pistons","offers":[{"title":"+0.5mm \/ 86.5mm 8.5:1","offer_id":67601301241923,"sku":"BBT-SP-18D74311021C567A","price":1750.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0703\/0659\/4883\/files\/spool-a8cfbc94bd01-ross-racing-forged-pistons-8-5-1--4_6742abc3-fffc-47ea-b237-023d3b9826d3.png?v=1790918698","url":"https:\/\/builtbyboostandtune.com.au\/products\/nissan-rb30et-ross-racing-forged-piston-8-5","provider":"BUILT BY BOOST AND TUNE","version":"1.0","type":"link"}