Does a stock R35 GT-R need an air oil separator?

Even a stock GT-R leaves an oil film in the turbo inlets and intake runners, according to T1 Race Development, and the problem grows with power, forged pistons and ethanol fuel. A separator earns its keep on modified cars, where blowby rises and oil starts reaching the intercooler and blow-off valves. On a stock car it mainly keeps the intake tract clean.

Does the Oil Separator Kit for R35 need to be emptied?

No. The T1 Oil Separator Kit for R35 is a fully recirculating system. Oil collected in its two separation stages drains back to the engine through a 6AN check valve, so there is no can to empty and no risk of an overfull can spilling into the turbo inlets. It also avoids the oil smell that vented systems can carry into the cabin.

How long does the GT1R separator take to install?

T1 Race Development rates installation at under two hours for a first-time installer using basic hand tools, including the oil drainback. The kit arrives with pre-assembled lines, a CNC aluminum mounting bracket and stainless steel hardware, and T1 publishes step-by-step instructions on its support site.

How does the GT1R separator keep oil out of the turbos?

Crankcase vapor passes through detailed internal passages that separate oil in two stages, first the larger droplets and then the finer mist. Cleaned air continues to the intake while the separated oil returns to the engine. A 6AN check valve in the drain stops crankcase pressure from pushing up through the bottom, where the separator is designed to drain.

What if the engine makes more blowby than one separator can handle?

On engines running extreme boost, the volume of air moving through the crankcase can exceed what a single separator returns. T1 Race Development offers the GT1R Secondary Breather Kit for those builds, which lets the separator vent to a catch can mounted at the front of the car instead of back through the turbo inlets.

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Description

T1 Race Development GT1R Air/Oil Separator Kit for R35 Nissan GT-R

T1 Race Development’s GT1R Air/Oil Separator Kit for R35 Nissan GT-R keeps crankcase oil out of the intake tract, where even a stock GT-R leaves a film in the turbo inlets and runners. Add boost, forged pistons with looser clearances or ethanol, which is harder on ring seal, and blowby climbs, carrying more oil into the intercooler and onto the valves. T1’s answer is a closed system that returns the oil to the engine, so there is no can to empty and no oily smell drifting into the cabin.

Design and Performance

Detailed internal passages separate oil in two stages, first the heavier droplets and then the fine mist, and the oil drains back to the engine through a 6AN check valve in the base. That valve lets oil return while stopping crankcase pressure from feeding the separator from below. The three-piece CNC body is anodized black, engraved with the GT1R logo, sealed with Viton o-rings and plumbed through AN o-ring boss ports.

Bolt-On and Go

A CNC aluminum bracket and stainless steel hardware mount the separator to the engine, and the lines arrive pre-assembled with Redhorse Performance black anodized crimp hose ends on black AN hose.

Features

Two-stage separation of heavy droplets and fine oil mist
Fully recirculating and maintenance free, with nothing to empty
Three-piece CNC body, black anodized and GT1R engraved
Viton o-ring seals and AN o-ring boss ports
6AN check valve in the drain to block crankcase pressure

What’s Included

GT1R CNC air/oil separator
CNC aluminum mounting bracket and stainless steel hardware
Pre-assembled lines with Redhorse Performance crimp hose ends
Oil drainback system

Applications

Nissan GT-R: R35 | 2009-2024 | 3.8L VR38DETT V6

Notes

On engines running extreme boost, the Oil Separator Kit for R35 can vent to the T1 Race Development GT1R Secondary Breather Kit (GT1R Secondary Breather Kit 1) instead of back through the turbo inlets

Frequently Asked Questions

Does a stock R35 GT-R need an air oil separator? Even a stock GT-R leaves an oil film in the turbo inlets and intake runners, according to T1 Race Development, and the problem grows with power, forged pistons and ethanol fuel. A separator earns its keep on modified cars, where blowby rises and oil starts reaching the intercooler and blow-off valves. On a stock car it mainly keeps the intake tract clean.
Does the Oil Separator Kit for R35 need to be emptied? No. The T1 Oil Separator Kit for R35 is a fully recirculating system. Oil collected in its two separation stages drains back to the engine through a 6AN check valve, so there is no can to empty and no risk of an overfull can spilling into the turbo inlets. It also avoids the oil smell that vented systems can carry into the cabin.
How long does the GT1R separator take to install? T1 Race Development rates installation at under two hours for a first-time installer using basic hand tools, including the oil drainback. The kit arrives with pre-assembled lines, a CNC aluminum mounting bracket and stainless steel hardware, and T1 publishes step-by-step instructions on its support site.
How does the GT1R separator keep oil out of the turbos? Crankcase vapor passes through detailed internal passages that separate oil in two stages, first the larger droplets and then the finer mist. Cleaned air continues to the intake while the separated oil returns to the engine. A 6AN check valve in the drain stops crankcase pressure from pushing up through the bottom, where the separator is designed to drain.
What if the engine makes more blowby than one separator can handle? On engines running extreme boost, the volume of air moving through the crankcase can exceed what a single separator returns. T1 Race Development offers the GT1R Secondary Breather Kit for those builds, which lets the separator vent to a catch can mounted at the front of the car instead of back through the turbo inlets.

About T1 Race Development

T1 Race Development was founded in Texas in 2005 by Tony Palo, whose 2000 Acura Integra GSR became the first eight-second front-wheel-drive street car before the shop turned its attention to the Nissan GT-R. T1 went on to become the first to exceed 230 mph in the half mile in a GT-R and the first to make 2,400 whp from the VR38DETT, and it now develops engines, drivetrain parts and complete builds for the R35 GT-R, Lamborghini Huracan and Audi R8.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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T1 Race Development GT1R Air/Oil Separator Kit for R35 Nissan GT-R [GT1R AOS]

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T1 Race Development GT1R Air/Oil Separator Kit for R35 Nissan GT-R

Design and Performance

Bolt-On and Go

Features

What’s Included

Applications

Notes

Frequently Asked Questions

About T1 Race Development

Reviews