CSF
R34 Skyline GT-R/GTS High-Performance All-Aluminum Radiator - Silver
R34 Skyline GT-R/GTS High-Performance All-Aluminum Radiator - Silver
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After the huge success of the CSF x TopRank Billet R32 (CSF #7217/7217B) & R33 (CSF #7219/7219B) Radiators, CSF received a lot of feedback from customers looking for a non-billet version. CSF is now pleased to announce the full line of High-Performance All-Aluminum Radiators for the R32, R33, and R34 Nissan Skylines.
CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your R34 Skyline running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. This radiator features a 2-Row core with CSF's exclusive B-Tube Technology: Unlike a regular oval shape "O" type radiator tube, CSF uses a specially engineered tube in the shape of a "B". These "B-tubes" are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (with better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded. The design (inlet in the middle of the tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes - producing the efficiency of two smaller tubes vs. one large tube within the same space criteria. With "B-tubes" you are able to get "dual liquid laminar flow". CSF also uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab.
The CSF R34 Skyline radiator is a true "Drop-in fit" design requiring no modifications to install. OE style brackets are all CNC machined and welded for the best durability possible. Inlet/Outlet connections are designed to match the OE connections so you can reuse OEM hoses or aftermarket. Trust the cooling experts at CSF for the best performing, highest-quality, and most reliable radiators.
Product Details
Design & Engineering
The inline 6 motors found in the R34 Skylines are quite robust. Whether you have a basic 2.0L RB20 or legendary RB26, you probably don't worry too much about engine reliability. The GT-R's RB26 is well known for making big power and being reliable while doing it. However, power gains come at the cost of a lot of extra heat. While the factory radiator does a decent job keeping heat in check on stock setups, it's always better to have more protection, especially as you're making big power upgrades.
CSF vs OEM
The 2-Row 42mm core greatly not only increases the fluid capacity of the radiator, but also improves the cores ability to dissipate heat. CSF's Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance. More cooling rows also improve the overall efficiency of the radiator. More cooling tubes means more surface area for the coolant's heat to dissipate from.
| Feature | R34 CSF | R34 OEM |
|---|---|---|
| Core Rows & Thickness | 2 â 42mm | 1 â 15mm |
| # Cooling Tubes | 75 | 71 |
| # Cooling Fin Rows | 76 | 72 |
| Fin Height/Width | 6.5mm | 7.5mm |
| Core Material | Aluminum | Aluminum |
| Tank Material | Aluminum | Plastic |
| Construction | 100% TIG Welded | Crimp on Gasket |
Each end tank is constructed from high-grade aluminum for strength and durability. The TIG-Welded construction further increases the overall strength. Each top end tank includes a pre-plugged 1/8th NPT and each bottom end tank includes M16x1.5P ports for temperature sensors. The CSF radiators mount in the factory location and require no modifications or cutting.
Each radiator includes a 1.4 bar high pressure cap with an embossed CSF logo. High pressure radiator caps raise the boiling point of coolant. This helps protect the system from boiling over at higher operating temperatures. While the radiator is designed to keep the system from reaching such temperatures, it is always good to have extra protection for situations where the coolant gets too hot.
â Fitment Notes
The CSF #7231/7231B are based on the early model GT-R Radiator Design (Slim Tank). The radiators fit both the early and late model R34 GT-Rs, but the fan shroud will require different fan shroud mounting hardware when installed on late model GT-Rs. To mount a late model fan shroud to the CSF Radiator you will need:
- Nut-Spring (qty 4) - Nissan: 21489-AA400
- Screw (qty 4) - Nissan: 01456-00451
This will secure the fan to the sides of the radiator instead of being secured to the top and bottom tanks.
Features
- 2-Row - 42mm Ultra-High-Performance Core
- 75 Cooling Tubes with CSF's Exclusive B-Tube Technology
- 6.5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
- CNC Machined Mounting Pins and OEM Style Inlet/Outlet
- 1/8th NPT Temp Sensor Port on Top End Tank
- M16 x 1.5P temperature sensor port with pre-installed plug
- 100% All Aluminum TIG-Welded Construction
- 1.4 Bar High Pressure Radiator Cap with CSF embossed logo
- True Plug-and-Play "Drop-in Fit" Installation Requires Absolutely No Modifications
- Individually Leak and Pressure Tested
- OE Location Fan Shroud Mounting Points
- Hand Brushed Satin Finish
- 2-Year Limited Warranty
Applications
| Year Range | Make | Chassis Code | Model | Trim | Engine / Trans / Etc | Notes |
|---|---|---|---|---|---|---|
| 1999-2002 | Nissan | R34 | Skyline | 25GT | 2.5L L6 | - |
| 1999-2002 | Nissan | R34 | Skyline | 25GT FOUR | 2.5L L6 | - |
| 1999-2002 | Nissan | R34 | Skyline | 25GT Turbo | Turbocharged 2.5L L6 | - |
| 1999-2002 | Nissan | R34 | Skyline | 25GT-V | 2.5L L6 | - |
| 1999-2002 | Nissan | R34 | Skyline | 25GT-X | 2.5L L6 | - |
| 1999-2002 | Nissan | R34 | Skyline | 25GT-X FOUR | 2.5L L6 | - |
| 1999-2002 | Nissan | R34 | Skyline | 25GT-X Turbo | Turbocharged 2.5L L6 | - |
| 1999-2002 | Nissan | R34 | Skyline | GT | 2.0L L6 | - |
| 1999-2002 | Nissan | R34 | Skyline | GT-R | Turbocharged 2.6L L6 | - |
â Fitment Notes
The CSF #7231/7231B are based on the early model GT-R Radiator Design (Slim Tank). The radiators fit both the early and late model R34 GT-Rs, but the fan shroud will require different fan shroud mounting hardware when installed on late model GT-Rs. To mount a late model fan shroud to the CSF Radiator you will need:
- Nut-Spring (qty 4) - Nissan: 21489-AA400
- Screw (qty 4) - Nissan: 01456-00451
This will secure the fan to the sides of the radiator instead of being secured to the top and bottom tanks.
OEM Part Numbers
- Nissan: 21410-AA401
- Nissan: 21410 AA401
- Nissan: 21410AA401
- Nissan: 21410-AA400
- Nissan: 21410 AA400
- Nissan: 21410AA400
Warranty
Cooling Systems and Flexibles, Inc. (CSF) warrants CSFâs High-Performance Cooling Systems, under normal use and service, to the original purchaser of the vehicle in which the product was originally installed. For more information and details please visit our Warranty Page
SKU# 7231 Warranty Term: 2 years