Piston Ring help

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
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redneck zx
Posts: 72
Joined: Sun Sep 06, 2009 6:58 pm
Car: 1991 300zx TT
Location: montesano/olyimpa wasington

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Ok so I'm in the middle of my rebuild and have the pistons mentioned below. There are a few options for piston rings I'm looking at and seeing how I am rather unknowledgeable in this department, I'm asking you guys. Seeing as my pistons are manufactured from ARIAS, should I stick with their Rings, go Wisesco, CP, or are there others that you guys recommend?
So here are the links to the options I'm thinking
Wiseco
https://www.z1motorsports.com/product_i ... 9n9ir5euv3
CP
https://conceptzperformance.com/Cart/de ... p?II=10981
ARIAS
http://arias-pistons.myshopify.com/prod ... rome-rings


Cylinders: Make: Model: Spec: Head: Head cc:
6 NISSAN VG30DETT TC GAS 4 VALVE 49.5

Displacement: 182.88 2998 INSTALLATION INSTRUCTIONS:
Bore: 3.445 87.50 ARIAS FORGED PISTONS ARE MANUFACTURED TO PROVIDE
Stroke: 3.270 83.06 PISTON TO CYLINDER WALL CLEARANCE AS INDICATED BELOW,
Rod Length: 6.071 154.20 BASED ON BORE DIAMETER GIVEN AT TIME OF ORDER.
Comp. Height: 1.255 31.88 *Clearance: .0040 0.10 MM
Compression: 9.00 9.00


Pin Diameter: .866 22.00
Top Groove: .060 1.5
2nd Groove: .060 1.5
Oil Groove: .158 4.0
Piston Weight: 350.0


Part Number Qty
Pistons: 3520000 6
DISH\4VR-1
Pins: A86623514SN 6
Rings: 1515403445 6
Locks: 866043S 12

Buttons:
*NOTE: IF PISTONS ARE PRO-COATED, SUBTRACT .002 FROM CLEARANCE NUMBER.
GLS:


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Ace2cool
Posts: 11650
Joined: Sun Apr 20, 2008 5:21 pm
Car: 1991 Nissan 300ZX TT
1966 Datsun Fairlady 1600
2005 Suzuki GSX-R 600
1974 Honda CB550 Four
2009 Ford F150 Lariat
Location: Murfreesboro, TN

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I'm a fan of matching rings to pistons, but that's just me. As long as your tolerances match up, you'll be fine.


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