Search results for 'crank shaft'
18 Item(s)
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Boundary QR25DE Billet Crankshaft Timing Sprocket
Regular Price: $159.98
Special Price $149.00
Boundary QR25DE Billet Crankshaft Timing Sprocket Fits ALL QR engines Crankshaft Timing Sprocket by Boundary Pumps®. Billet Crank Sprockets from Boundary follow the same heritage as oil pump gears, manufactured 100% in house with US sourced materials. These sprockets start with a chromoly steel that is 10 times stronger then the OEM powdered metal, hot quenched with a low temper for the highest strength and resistance to wear. more details on - https://www.carid.com/boundary-pumps/crankshaft-timing-sprocket-mpn-qr25de-sp.html All sprockets heat treated to maximum hardness while maintaining toughness Precision CNC machined and broached for accurate fit Dimensions checked after machining and after heat treating for guaranteed fit 80% more cross section versus OEM at the keyway Weighs 30% more then OEM High finish reduces friction and chain vibration New tooth geometry strengthens teeth and keyway Learn More -
QR25 Fully Counterweighted and Knife Edged Crankshaft
Regular Price: $1,260.98
Special Price $499.00
QR25 Fully Counterweighted and Knife Edged Crankshaft GEN 1 - QR25DE Will need to be turned/polished (journals)Normally reserved for racing applications, a knife edged crankshaft can help the engine produce more horsepower. Removing this material and bringing it to a sharp edge does a couple of things. First, knife edging can often remove pounds of weight. Less weight equates to a rotating assembly that spins with less resistance, and this in itself is responsible for some gains in horsepower.
The counterweights on a Stock Nissan crank is flat on the ends. As the crankshaft rotates, these counterweights come into direct contact with the engine's oil. This contact creates friction and splashes oil all over the bottom end of the engine. A knifed edged crankshaft actually glides through the oil much easier and encounters far less friction. Anytime friction can be reduced in an engine's rotating assembly or valvetrain, additional horsepower gains are realized. Excellent for turbo or NA applications.
IN STOCK NOW!
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Gen1 Signal Wheel for B16 Crank
Regular Price: $106.78
Special Price $96.14
Gen1 Signal Wheel for B16 Crank with Bolts Signal wheel to install a B16 Crankshaft or 2JR Knife-edged Crankshaft in a Gen1 QR25 (2002-2006). Complete OEM kit with Bolts Learn More -
Cam Phaser Sprocket (02-06 QR25)
Regular Price: $339.87
Special Price $289.78
If your QR suffers from chain rattle at start up when cold, the issue more than likely is a bad intake sprocket phaser. This can lead to jumped timing, bent valves, broken chains and/or broken main crank sprockets. 2JR offers new cam phaser sprockets. We have these in stock! Do not wait to replace your sprocket and risk an engine failure. Learn More -
QR25 Forged Turbo Block
Regular Price: $3,699.99
Special Price $3,299.99
QR25 Fully Forged Turbo Short Block built with 89.5mm Wiseco Dished Pistons with hard moly coated skirts, 2JR H Beam Forged Rods, ARP Rod Bolts and OEM Nissan Crank. Machined with ACL bearings, new OEM mains. Ready to drop in. Just add your head or a fresh 2JR head with 2JR valve springs for $599 more. Good for NA Builds and Turbo Builds up to 400whp. Excellent durability against detonation and extreme use. 1. 2JR 89.5mm Wiseco Dished Pistons with hard moly coated skirts 2. 2JR Forged H-Beam Rods 3. ARP Rod Bolts 4. OEM Crankshaft 5. ACL Bearings Optional: 2JR QR25DE Sleeved Block Darton MID Sleeves, installed. The stock block tends to crack the liner after 400whp. These blocks are good to over 700whp while the Darton MID Sleeves are made of ductile iron and are able to hold over 1000hp. The sleeves are unfinished and will need to be honed to match your piston size. Benefits: Cast iron performance in an aluminum block Improved block integral strength Improved cooling Learn More -
2JR High Performance Block
Regular Price: $2,599.99
Special Price $1,899.78
2JR High Performance Short Block built with 89.5mm 2JR Turbo cast pistons with hard anodized tops, 2JR I Beam Forged Rods, ARP Rod Bolts and OEM B15 SpecV Crank. Machined with ACL bearings, new OEM mains. Ready to drop in your 02-06 B15! Just add your head or a fresh 2JR head with 2JR valve springs for $599 more. Good for NA Builds and Turbo Builds up to 350whp. 1. 2JR Stock Comp Turbo Hard Anodized Pistons 2. 2JR Forged I-Beam Rods 3. ARP Rod Bolts 4. OEM B15 SpecV Crank 5. ACL Bearings Learn More -
2JR High Comp Short Block (10.0-1)
Regular Price: $2,699.99
Special Price $2,199.99
2JR High Comp Short Block built with B16 SpecV High Comp Pistons, B15 SpecV Rods and B15 SpecV Crank. Machined with ACL bearings, new OEM mains. Ready to drop in your 02-06 B15! Just add your head or a fresh 2JR head with 2JR valve springs for $599 more. This motor, with 2JR cams and plenum made 255 crank hp, NA on pump gas. 1. B16 SpecV High Comp Pistons - 10.1-1 2. B15 Spec-V Rods 3. B15 SpecV Crank 4. ACL Bearings Learn More -
(02-06) QR25DE Complete Engine (Street or Race)
Regular Price: $4,200.00
Special Price $3,990.00
(02-06) QR25DE Complete Engine 2JR Fully Built QR Engines are now available. Built to your specs, for NA, High Comp or Boost - including sleeved blocks capable of +700whp. No one has built more QRs than 2J with a commitment to quality and excellence. Engines are drop shipped to your location, ready for install or have us remove and install your new engine. Head Work – Machined Head 5 Angle valve angle job New OEM valves seals Cam Buckets (clearance to spec) OEM Cam Sets Cometic Headgasket Block – Balanced and Blueprinted, Assembled with Head (Long Block – complete/assembled) OEM Piston Set 9.5-1 Compression (Thicker Ring Lands & Better Quench Pads) Block Honed 2JRacing H Beam or I Beam Forged Rod Sets ARP Rod Bolts ARP Head Bolts ACL Main and Rod Bearings New OEM Front Cover (oil pump) New Water Pump JWT BSR Kit Complete Timing Equipment (chain, guides, tensioner, and sprocket) ALL New OEM Seals, Gaskets, O-Rings and Plugs New OEM Cam and Crank Sensors NGK LFR6A-11 Plugs Learn More -
2JR QR25DE Sleeved Block B15/B16
Regular Price: $2,899.98
Special Price $2,699.80
Finally! 2JR QR25 Blocks with Darton MID Sleeves, installed. The stock block tends to crack the liner after 400whp. These blocks are good to over 700whp while the Darton MID Sleeves are made of ductile iron and are able to hold over 1000hp. The sleeves are unfinished and will need to be honed to match your piston size. Benefits: Cast iron performance in an aluminum block Improved block integral strength Improved cooling NOTE: WHEN CHECKING OUT, SELECT FREE SHIPPING - SINCE YOU ALREADY CHOSE A SHIPPING OPTION ON THIS PAGE. YOU WILL RECEIVE A $250 CORE CHARGE WHEN A GOOD USABLE BLOCK IS RETURNED TO 2JR, THAT MEANS NO HOLES, ETC. Sleeving Process: includes the removal of the old sleeves, machining the block for the new sleeves, installation, and step decking. The process is done on a 3-axis CNC machine. Next the block is honed using a torque plate to simulates the QR cylinder head being bolted on and ensure the cylinder is as true as it was while in the honing machine. The QR is then line bored (where the crank sits) and honed to ensure its perfect. Each block is: - Hot tank cleaning - Darton MID Sleeves Installed - Bore & Hone w/ Torque Plate - Line Bore Learn More -
OEM Nissan B15 QR25 Full Engine Rebuild Kit (02-06)
Regular Price: $629.99
Special Price $589.98
Full rebuild kit for your Gen 1 (02-06 Sentra, Altima) QR25 that includes everything you need to rebuild your QR yourself. DOES NOT FIT THE FRONTIER
Headgasket
Intake manifold gasket
Exhaust manifold gasket
Valve cover gasket
Valve stem seals
All necessary O-rings
Front seal and rear main sealMain and Rod Bearings
10 Head Bolts
Oil Pump / Water Pump
Cam and Crank Sprockets
Main Timing Chain
Main Tensioner
All Chain Guide Rails
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JWT QR25DE Balance Shaft Removal Kit (BSR)
Regular Price: $129.99
Special Price $109.99
Must have for any lightly modified and/or turbo QR. The Balancer Shaft Removal kit is a must for high RPM performance. The QR25DE comes equipped with a balancer shaft assembly that spins at twice engine speed to generate an opposing inertial mass. Increases oil capacity by 1.5qts Learn More -
OEM QR25DE Engine Timing Kit
Regular Price: $209.14
Special Price $198.71
Complete Engine timing kit for the Gen 1 QR25DE motor (2002-2006) - fits all Gen 1 QRs OEM Nissan Parts include 1. Left and Right Guide Rails 2. Chain Tensioner 3. Main Chain 4. Exhaust Sprocket 5. Lower Main Sprocket 6. Orings for Upper Pan, Front Cover and Timing Cover Does not include Intake Cam Sprocket/Phaser (can be purchased separately) or the lower chain for the balance shafts - we suggest adding the BSR Kit Learn More -
K&N Nissan QR25 Performance Gold Oil Filter
Regular Price: $17.70
Special Price $15.98
Fits all QR25 Engines (all years/models) Each K&N Performance Gold Oil Filter comes with a 1” nut welded to the top of the canister so they can be easily wrenched-off with a standard tool. K&N Performance Gold Oil Filters use resin impregnated cellulose filter media. This allows for higher flow rates while providing outstanding filtration. High filter flow rates are important in racing vehicles where heavier grade oil is used and the oil is pumped much faster than in a standard vehicle. When the engine is circulating oil at high GPM rates, the high-flow oil filter helps reduce the loss of pressure through the filtering process. FEATURES * Drilled safety wire holes for racing in canister oil filters * Sturdy 1" (automotive) or 17 mm (motorcycle) wrench nut, where applicable, makes oil filter removal quick and easy * Heavy-duty construction * Resin-impregnated filter media provides maximum filtering surface for contaminant removal * Anti-drainback valve (where applicable) eliminates dry starts, prevents oil from draining back into crankcase during engine shutdown * Internally lubricated gasket provides positive seal while allowing easy on and off of filter * Rolled threads provide extra protection against stripping Learn More -
Brian Crower High RPM Valve Springs - QR25DE (all models)
Regular Price: $139.98
Special Price $129.78
Brian Crower High RPM Valve Springs - QR25DE (all models) * Valvesprings Designed for high rpm, Brian Crower valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures (chamfer, debur, etc...) for consistent pressures over long term, high rpm usage. Quality valve springs are critical in the prevention of premature valve float. * Retainers The ultimate in lightweight high performance, Brian Crower titanium retainers typically weigh in approximately 40% less than the factory OEM steel units. CNC machined for premium 6AL4V titanium bar stock to exacting tolerances. * Spring/Retainer Kits Brian Crower valve spring and titanium retainers kits are system matched to work in unison to deliver better valve control at extended rpm's and allow for greater lift camshafts for added performance and reliability. Fits all QR25DE models 2002 - 2013 ALTIMA 2005 - 2012 FRONTIER 2008 - 2012 ROGUE 2002 - 2012 SENTRA 2005 - 2006 X-TRAIL Learn More -
2JR HiPower H-Beam Rod Set (700whp)
Regular Price: $469.99
Special Price $429.99
2JR rod sets for the QR25 are extremely durable, lightweight and cost not much more than the factory B16 rod. All come with ARP rod bolts.
H-beam rod out of 4340 high tensile steel for QR turbo applications, good for up to 700whp. These are over 25mm in thickness.
I-Beam rod is extremely lightweight I-beam rod from 4340 that is designed for all NA and low boost (less than 450whp) applications.
Principal Design Features AISI 4340 is a heat treatable, low alloy steel containing nickel, chromium and molybdenum. It is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength. Applications Typical applications are for structural use, such as aircraft landing gear, power transmission gears and shafts and other structural parts. Tapered to Fit OEM / B16 and Frontier Pistons perfectly - as well as forged wiseco/je
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2JR HiPower I-Beam Rod Set (450whp)
Regular Price: $420.99
Special Price $399.99
2JR rod sets for the QR25 are extremely durable, lightweight and cost not much more than the factory B16 rod. All come with ARP rod bolts.
H-beam rod out of 4340 high tensile steel for QR turbo applications, good for up to 700whp. These are over 25mm in thickness.
I-Beam rod is extremely lightweight I-beam rod from 4340 that is designed for all NA and low boost (less than 450whp) applications.
Principal Design Features AISI 4340 is a heat treatable, low alloy steel containing nickel, chromium and molybdenum. It is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength. Applications Typical applications are for structural use, such as aircraft landing gear, power transmission gears and shafts and other structural parts. Tapered to Fit OEM / B16 and Frontier Pistons perfectly - as well as forged wiseco/je
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QR25 JWT CAMSHAFT SET S1 BILLET CAMS
Regular Price: $699.99
Special Price $649.98
CAMSHAFT SET QR25DE BILLET CAMS. GOOD IDLE AND DRIVABILITY WITH AN 8+HP GAIN. USES STOCKS SPRING AT STOCK REV CUT OR AQR25-SPRNG SPRING SET IF RUNNING TO 7200RPM.
FITS:
S1 Cam - Excellent street cam, good power and idle. Go with the best, JWT Learn More
ALTIMA, SENTRA, ALTIMA 2002+, SENTRA 2.5L,
ENGINES:
QR25DE, -
QR25 JWT CAMSHAFT SET C1 BILLET CAMS
Regular Price: $699.98
Special Price $649.98
Ultimate in cams for your QR motor. Go big with the C1s.CAMSHAFT SET QR25DE C1 BILLET CAMS, BETTER THAN THE JWT S1 CAMS ABOVE 3500 RPM WHEN USED WITH 2J RACING LONG TUBE HEADER, 3" COLLECTOR AND LOW RESTRICTION EXHAUST SYSTEM. THERE IS ANOTHER 10-15 HP POTENTIAL BEYOND THE JWT S1 CAMS FOR A COMPETITION ENGINE. C1 IS A LARGE PROFILE
FITS: ALTIMA 2002+, SENTRA 2.5L B15 and B16,
ENGINES: QR25DE,
Suggested to use Brian Crower Valve Springs Install Instructions http://www.jimwolftechnology.com/wolfpdf/CAM_ASER2-QRNC1_HEAD_CLEARANCING_INST.pdf http://www.jimwolftechnology.com/wolfpdf/CAMSHAFT_INSTALL_QR25DE_INSTRUCTIONS.pdf Learn More
18 Item(s)
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