What’s best for boosted HRs? 14lb vs 17lb lightweight flywheels. 07 base model 6MT Z33 — 3.538 final drive.
Current setup:
- 2007 350Z HR
- 6MT
- Factory 3.538 gears
- Z1 premium one-piece driveshaft
- CZP CSC relocation kit
- Timing cover/front cover currently off
- Trans currently out
- mygallery gaskets already done ✅
Doing maintenance while everything is apart:
- new clutch setup
- water pump
- thermostat
- main timing chain
- front guides/tensioner
Future plans:
- eventually install my 4.08 setup for an aggressive NA build
- possibly save factory 3.538 diff to the side for a future boosted setup
- build eventually want to do a VHR bottom end / HR head hybrid build later on
Main thing I’m debating RIGHT NOW is flywheel choice for the current stock base 3.538 setup:
- CZP chromoly lightweight flywheel (17lb)
or
- Z1 lightweight flywheel (14lb)
Any recommendations and or ideas are highly appreciated.
⭐️Anybody here running:
- lightweight flywheel + VQ35HR and 4.08 gears or 3:538 gears (final drive).
- boosted HR setups
- or similar drivetrain combos?
Trying to gather real-world experiences before I bolt everything together.
Current Owned Parts / Inventory
2007 Nissan 350Z HR Coupe — 6-Speed Manual Transmission
Drivetrain:
- Brand new CD00A 6-speed manual transmission from Z1 Motorsports
- 4.08 differential gear setup + reseal kit
- Z1 Motorsports Premium One-Piece Aluminum Driveshaft
- Z1 Motorsports High-Capacity Differential Cover
- Nissan Nismo Solid Differential Bushing Kit
Clutch / Flywheel / CSC:
- Z1 Motorsports VQ35HR Clutch & Flywheel Kit
- Z1 Lightweight Flywheel
- Performance Street Clutch
- Standard Full-Face Disc
- CZP-HR-CFW 17lb Chromoly Lightweight Flywheel
- Exedy NC23T Racing Pressure Plate (HR/VHR)
- Exedy NSD053UA Sprung Full-Face Disc
- CZP HRK V3 CSC Delete / Hydraulic Relocation Kit (HR/VHR)
- Z-Speed V3 CSC Delete Kit (370Z/G37)
Cooling / Oiling:
- Mishimoto MMRAD-350Z-07 Aluminum Radiator
- Mishimoto 370Z Thermostatic Oil Cooler Kit
- Part Number: MMOC-370Z-09T
- Z1 Motorsports HR Oil Catch Can
Suspension / Chassis:
- SPC Adjustable Front Upper Control Arms (FUCAs)
- Z1 Front Core Support H-Brace / M-Brace
Brakes:
- StopTech Front 4-Piston Big Brake Kit
- StopTech Front Rotors
Intake / Airflow:
- Nismo Dual Cold Air Intake
- Part Number: 16576-RNZ38
- Discontinued
- Jay-Z Performance Hand Ported Upper & Lower Plenums (VQ35HR)
- EPS HR/VHR Big Bore Throttle Body Kit
- JWT Pop Charger Air Filters / Intake Setup (VQ35HR)
- Brand New STILLEN VQ35HR Intake System
Ignition:
- Z1 Motorsports HR Coil Packs
Engine Components:
- (6x) Nissan OEM VQ35HR Pistons w/ Pins
- Part Number: A2010-JK21V
Exterior:
- OEM Nismo V3 Front Bumper / Fascia
- Part Number: FBM22-1A458H
- Paint Matched QX1 Glacier Pearl