{"product_id":"act-xact-b-series-streetlite-prolite-flywheels","title":"ACT XACT B-Series Streetlite and Prolite Flywheels","description":"\u003cul\u003e\n\u003cli\u003e12.2 lb Streetlite or 8.7 lb Prolite option \u003c\/li\u003e\n\u003cli\u003eForged, heat-treated chromoly steel in one-piece construction \u003c\/li\u003e\n\u003cli\u003e112-tooth induction-hardened ring gear \u003c\/li\u003e\n\u003cli\u003e220 mm friction surface diameter \u003c\/li\u003e\n\u003cli\u003eCNC machined and dynamically balanced; ACT lists SFI 1.1 \u003c\/li\u003e\n\u003cli\u003eVerified B-series manual applications; clutch pairing requires confirmation \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e   \u003cli\u003e\u003ca href=\"#Included\"\u003eIncluded\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eACT XACT B-Series Flywheels: 600110 Streetlite and 600105 Prolite\u003c\/h3\u003e\n\u003cp\u003eYou've got a clutch job planned for your B-series Integra, Civic Si or del Sol VTEC, and the flywheel choice will affect how the car feels long after the gearbox goes back in. ACT's 600110 Streetlite weighs 12.2 lb. The 600105 Prolite brings that down to 8.7 lb. Both are one-piece forged chromoly steel, with the same 112-tooth ring gear and 220 mm friction surface.\u003c\/p\u003e\n\u003ch3\u003eChoose for the driving you actually do\u003c\/h3\u003e\n\u003cp\u003eStreetlite is the starting point for a car that still does the commute. ACT recommends it for street and race use, with street or drag racing as its preference. You aren't choosing the lightest option, but you also aren't taking on Prolite's stated reduction in driveability just to save another 3.5 lb. ACT describes Streetlite's gear rattle as OE to mild.\u003c\/p\u003e\n\u003cp\u003eProlite makes more sense when you're putting together a road-race or rally car and engine response takes priority. It's ACT's lower-inertia choice, with reduced driveability and mild to moderate gear rattle in its description. That doesn't make it the automatic upgrade over Streetlite. If you're regularly creeping through traffic, weigh those compromises against the response you're looking for.\u003c\/p\u003e\n\u003cp\u003eA lighter flywheel stores less rotational energy. Engine speed can change more quickly, but you've also got less stored energy available as you pull away. Your clutch disc choice changes the picture too: a street disc and a ceramic race disc won't give you the same takeoff feel. Choose the pair around the car's use rather than chasing the lowest flywheel weight by itself.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlywheel Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eACT Part\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eFlywheel Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eACT Recommendation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStreetlite\u003c\/td\u003e\n\u003ctd\u003eact600110\u003c\/td\u003e\n\u003ctd\u003e600110\u003c\/td\u003e\n\u003ctd\u003e12.2 lb\u003c\/td\u003e\n\u003ctd\u003eStreet and race; street or drag preference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProlite\u003c\/td\u003e\n\u003ctd\u003eact600105\u003c\/td\u003e\n\u003ctd\u003e600105\u003c\/td\u003e\n\u003ctd\u003e8.7 lb\u003c\/td\u003e\n\u003ctd\u003eRace; road racing or rally preference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eSteel construction and later servicing\u003c\/h3\u003e\n\u003cp\u003eThese aren't aluminum flywheels with separate friction inserts. ACT starts with a heat-treated chromoly steel forging, CNC machines it and dynamically balances the finished flywheel. The induction-hardened ring gear and friction face are part of its one-piece construction. You can have the face resurfaced within ACT's limits when it needs cleanup, without buying a replacement insert.\u003c\/p\u003e\n\u003cp\u003eProlite is still a steel flywheel. Its lower weight doesn't change the material, ring-gear tooth count or listed friction-surface diameter. ACT lists SFI 1.1 for both versions.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eForged, heat-treated chromoly steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eOne piece; CNC machined and dynamically balanced\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRing gear\u003c\/td\u003e\n\u003ctd\u003e112 teeth; induction hardened\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFriction surface diameter\u003c\/td\u003e\n\u003ctd\u003e220 mm \/ 8.7 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSFI specification listed by ACT\u003c\/td\u003e\n\u003ctd\u003e1.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eVerified manual applications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake \/ Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTrim \/ Engine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-2001\u003c\/td\u003e\n\u003ctd\u003eAcura Integra\u003c\/td\u003e\n\u003ctd\u003eVerified GS, LS, RS, GS-R, Special Edition and Type R years; B17 \/ B18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1994-1997\u003c\/td\u003e\n\u003ctd\u003eHonda Civic del Sol\u003c\/td\u003e\n\u003ctd\u003eVTEC; 1.6L B16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1999-2000\u003c\/td\u003e\n\u003ctd\u003eHonda Civic\u003c\/td\u003e\n\u003ctd\u003eSi; 1.6L B16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1998-2001\u003c\/td\u003e\n\u003ctd\u003eHonda CR-V\u003c\/td\u003e\n\u003ctd\u003eEX \/ LX; 2.0L B20, manual only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eA 1995 del Sol Si and a 1995 del Sol VTEC aren't the same application. These flywheels are listed for the B16-powered VTEC model, not the SOHC Si. The same care applies to a swapped Civic: the badge on the trunk won't identify the engine, gearbox or clutch you've installed. Check that actual combination before choosing either flywheel.\u003c\/p\u003e\n\u003cp\u003eACT lists both flywheels for the 1990-1991 Integra as well as the later B-series applications, but that doesn't make every B-series clutch disc interchangeable. Match the clutch to your transmission and verify its fit against the flywheel. These aren't K-series flywheels, and automatic cars aren't covered.\u003c\/p\u003e\n\u003ch3\u003eWhat comes with it and what to check\u003c\/h3\u003e\n\u003cp\u003eYou get one selected flywheel. The clutch is a separate purchase. Follow ACT's installation instructions and the fastener specifications for your application; don't transfer assumptions from a different engine or flywheel. The flywheel step sets the relationship between the friction face and pressure-plate mounting face, so keep that dimension correct.\u003c\/p\u003e\n\u003cp\u003eFor later resurfacing, ACT calls for a flywheel grinder and no more than 0.040 in \/ 1.02 mm of material removal. Have the machinist remove only what's needed for cleanup while maintaining the proper step. That maximum isn't permission to take another 0.040 in off at each clutch change.\u003c\/p\u003e\n\u003cp\u003eACT provides a 12-month limited warranty under its published terms. Keep your receipt; installation labor isn't covered. Both part numbers carry a California Proposition 65 warning.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003eManual transmissions only. Application is specific to verified B-series engine\/trim\/year combinations; Civic del Sol VTEC is included, SOHC S\/Si is excluded. Integra GS 1990-1993 and 1997-2001, LS 1990-2001, RS 1990-1998, GS-R 1992-2001, Special Edition 1995-1996, Type R 1997-2001. Civic Si 1999-2000; CR-V EX\/LX 1998-2001. Engine swaps require verification of actual engine, transmission, clutch and flywheel arrangement. Flywheel compatibility does not establish clutch-disc spline compatibility across transmission years.\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\n\n \n\u003cli id=\"Included\"\u003e\n\u003cp\u003eOne selected ACT flywheel, 600110 Streetlite or 600105 Prolite. Clutch sold separately. Bolt\/hardware inclusion has not been verified.\u003c\/p\u003e\n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"ACT Clutch","offers":[{"title":"Prolite","offer_id":67634764906530,"sku":"ACT600105","price":291.0,"currency_code":"USD","in_stock":false},{"title":"Streetlite","offer_id":67634764939298,"sku":"ACT600110","price":255.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/act-xact-b-series-streetlite-a_mg76.jpg?v=1790902924","url":"https:\/\/www.hybrid-racing.com\/products\/act-xact-b-series-streetlite-prolite-flywheels","provider":"Hybrid Racing","version":"1.0","type":"link"}