Radium FHST Fuel Hanger Surge Tank, 350Z/G35
Application: Nissan 350Z / Fairlady Z (Z33), Nissan Skyline V35/V36, Infiniti G35, G37, Q50 and Q60 - some models need a fuel level adapter
Part Type: In-tank fuel hanger surge tank (FHST) - fuel pumps not included
Part Number: 20-1830, 20-1832
The Radium Fuel Hanger Surge Tank (FHST) tackles fuel starvation in the Nissan Z33/V35 chassis, caused by the saddle-bag-style OEM tank and its weak baffling during aggressive driving such as track use. Because the surge tank is built inside the OEM tank, there's no cutting of sheet metal and no separate surge tank mounted in the cabin.
The FHST runs one or two aftermarket fuel pumps, supplies 1:1 regulated fuel and is E85 compatible. Two versions are available to suit different pump families, and later Skyline/G37/Q50/Q60 and early Z33/V35 models use a Radium fuel level adapter.
Key Features
-
Drop-In Installation: Built inside the OEM tank - no sheet-metal cutting or cabin-mounted surge tank
-
1 or 2 Surge Pumps: Runs one or two aftermarket pumps
-
Brushless Compatible: 20-1832 suits the DeatschWerks DW440 brushless pump
-
Integrated Regulator: Adjustable 1:1 fuel pressure regulator
-
Pressure Gauge: 0-100 psi fuel pressure gauge included
-
Starvation Protection: Surge tank inside the OEM tank keeps the pumps supplied
-
High-Current Electrical: Stainless electrical studs with non-conductive acorn nuts, ETFE-insulated in-tank wiring
-
Construction: Anodised aluminium with stainless hardware
-
Fuel Compatibility: Petrol, methanol and ethanol (E85) compatible
Available Configurations
-
20-1830: Suits Walbro GSS342 or AEM 50-1200 (E85) pumps
-
20-1832: Suits Walbro F90000267, F90000274, F90000285 or DeatschWerks DW440 (brushless) pumps
What's Included
- Fuel hanger surge tank with integrated 1:1 regulator
- Hardware for pump installation
- DIY wiring for one pump, including one relay and one fuse
- 0-100 psi fuel pressure gauge
- EFI hose
- Fittings
- Vacuum plug for constant-pressure setups
Optional Parts
-
Radium Fuel Level Sender Adaptor - Nissan 350Z Z33/Nissan Skyline V35 (20-0596) - required for early 350Z/Fairlady Z (Jan 02 to Jan 04) and early Skyline/G35 Coupe (Jan 01 to Mar 03)
-
Radium Fuel Level Adapter, Nissan Skyline V36 / Infiniti G37 / Q50 / Q60 (20-0896) - required for late Skyline, G37, Q50 and Q60 models
-
Radium Fuel Hanger FPR Block Off Plate - Ford Mustang S197/S550 11+ (20-0806) - converts the built-in regulator to a return-style system for an external regulator
-
Radium 20-1000-0606 Low Profile Swivel Banjo Fitting, 6AN ORB to 6AN Male (20-1000-0606) - low-profile 6AN ORB return port fitting recommended with the 20-0806 block-off
-
Radium 20-1000-0808 Low Profile Swivel Banjo Fitting, 8AN ORB to 8AN Male (20-1000-0808) - 8AN low-profile adapter for the FHST OUT port, recommended for high flow
Important Notes
- Fuel pumps are not included
- The OEM venturi system must be used with the FHST, and the OEM module pump must be upgraded to at least 340 LPH at 40 psi
- Do not modify the OEM fuel pressure regulator or the OEM venturi jet pump
- The FHST IN fitting cannot be changed because it contains a component the venturi system needs
- The Radium integrated regulator must be the only fuel pressure regulator in the system
- The OEM post-pump filter stays in place; a downstream aftermarket filter is recommended but not required
- Radium notes the fuel level gauge will read inaccurately, although starvation will not occur prematurely
- Vacuum reference is optional - open to atmosphere gives constant pressure, connected to intake vacuum gives 1:1 rising rate
- Not compatible with Q50/Q60 2.0 Turbo models
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Nissan 350Z / Fairlady Z (Jan 2004 on)
- Nissan 350Z / Fairlady Z (Jan 2002 to Jan 2004) - requires 20-0596
- Nissan Skyline Sedan (Jan 2001 to Dec 2008) - requires 20-0896
- Infiniti G35 Sedan (2001 on)
- Infiniti G37 Sedan (Dec 2008 on) - requires 20-0896
- Infiniti Q50 (Nov 2013 on) - requires 20-0896; not 2.0 Turbo
- Nissan Skyline Coupe (Mar 2003 to Dec 2008)
- Nissan Skyline Coupe (Jan 2001 to Mar 2003) - requires 20-0596
- Nissan Skyline Coupe (Dec 2008 on) - requires 20-0896
- Infiniti G35 Coupe (Mar 2003 on)
- Infiniti G35 Coupe (Jan 2001 to Mar 2003) - requires 20-0596
- Infiniti G37 Coupe (Dec 2008 on) - requires 20-0896
- Infiniti Q60 (Nov 2013 on) - requires 20-0896; not 2.0 Turbo
For application support, send your vehicle details to TJ Auto Parts through the Parts Finder.
Supplier-listed applications:
- Nissan 350Z / Fairlady Z (Jan 2004 on)
- Nissan 350Z / Fairlady Z (Jan 2002 to Jan 2004) - requires 20-0596
- Nissan Skyline Sedan (Jan 2001 to Dec 2008) - requires 20-0896
- Infiniti G35 Sedan (2001 on)
- Infiniti G37 Sedan (Dec 2008 on) - requires 20-0896
- Infiniti Q50 (Nov 2013 on) - requires 20-0896; not 2.0 Turbo
- Nissan Skyline Coupe (Mar 2003 to Dec 2008)
- Nissan Skyline Coupe (Jan 2001 to Mar 2003) - requires 20-0596
- Nissan Skyline Coupe (Dec 2008 on) - requires 20-0896
- Infiniti G35 Coupe (Mar 2003 on)
- Infiniti G35 Coupe (Jan 2001 to Mar 2003) - requires 20-0596
- Infiniti G37 Coupe (Dec 2008 on) - requires 20-0896
- Infiniti Q60 (Nov 2013 on) - requires 20-0896; not 2.0 Turbo
Note: Compatibility information is provided as a general guide only. Some vehicles may have multiple part variations for the same model or engine. To ensure this product is the correct fit and to be eligible for our Fitment Guarantee, please contact our team before purchasing.
Can’t find the part you’re looking for?
If you can’t find the part you need, please fill out our Fitment Finder or visit our Contact Us page. One of our expert team members will respond promptly to assist with your enquiry.
How do I make payment?
Payment is completed during checkout. We accept all major payment methods via Shopify Payments including credit/debit cards, Apple Pay, Google Pay, and more. Direct bank transfer is also available please contact us at contact@tjautoparts.com.au for bank details and instructions.
How long will it take to process my order?
We aim to process and dispatch all orders within 1–2 business days. If there are any delays, we will notify you promptly via email.
What if I’ve seen a cheaper price elsewhere?
We always aim to offer the best value. If you’ve found a better price elsewhere, get in touch with us and we’ll do our best to match or beat it.
Where do the products come from?
All products are sourced directly from the manufacturer or authorised suppliers to ensure authenticity. Every item is backed by the manufacturer’s warranty.
Do you offer trade accounts or special pricing?
Yes, we offer trade accounts and pricing for qualified customers. To find out more or apply, simply email us at contact@tjautoparts.com.au and our team will assist you.
To see more FAQs visit our FAQs page or get in touch today.
Shipping Rates
We offer free standard shipping on all orders over $150 (excluding bulky items). For orders under $150. Standard shipping starts at $9.95. Express shipping starts at $14.95. Shipping costs can be calculated in the cart or at checkout. Orders containing bulky items such as batteries, brake discs, liquids, and lift kits may incur additional shipping charges, particularly to remote or regional areas.
Dispatch & Handling
We aim to process and dispatch all orders within 1-2 business days. In the event of any delays, our customer service team will notify you. Tracking numbers are sent via email once your order has been dispatched and can also be accessed from your account.
For enquires on same day delivery or pickup, please contact our team before ordering to check availability. Custom or order in only items may have longer lead times. For more details on shipping, see our Delivery information page.
Returns and Refunds
If you change your mind or need to cancel an order, simply contact us at contact@tjautoparts.com.au within 30 days of delivery. Items should be unused and in their original packaging. A small restocking/admin fee of 5–20% may apply to help cover processing costs. This fee is only applicable at the discretion of our staff and may not apply to all orders. Return shipping is covered by you unless we sent the wrong or faulty item, in which case we’ll take care of it. Once we receive your return, refunds are processed quickly, usually within 48 hours, with up to 5 business days for your bank to complete the transfer.
We’re here to help make returns easy and hassle free! Contact us with any questions.
Warranty
All products come with the manufacturer’s warranty. If you experience any issues, please contact us at contact@tjautoparts.com.au. For full details on warranty coverage and claims, please visit our Returns page.
