At what power does the factory R35 flywheel fail?

T1 Race Development reports that the factory GT-R flywheel, which is made from thin steel, often cracks and fails at around 1,300 wheel horsepower and above. Cars below that level rarely need the upgrade. Above it, the factory part becomes a common failure point, which is why T1 developed the GT1R flywheel with ETS and Tilton Engineering.

Does the Flywheel for R35 include new bolts?

No. The T1 Flywheel for R35 is sold on its own, and the upgraded GT1R flywheel bolts are a separate part. T1 Race Development recommends fitting the bolts with the flywheel, because once the flywheel can carry big power the factory fasteners become the next weak point. Order both if the car does not already have the upgraded bolts.

Who makes the GT1R flywheel?

The GT1R flywheel is the result of a partnership between T1 Race Development, ETS and Tilton Engineering. Tilton is a long-established maker of racing clutches and flywheels, and ETS builds turbo systems for high-power GT-R builds. T1 developed the design for its own GT1R program and sells it under the GT1R name.

Is the GT1R flywheel worth fitting on a mildly modified GT-R?

For most mildly modified cars it is not necessary. T1 Race Development developed the flywheel for builds past roughly 1,300 wheel horsepower, where the thin factory flywheel cracks. If the car is heading toward that level, or the drivetrain is already apart for other work, fitting it then avoids a second teardown later.

How difficult is the flywheel installation on an R35?

It is a major drivetrain job, so it is normally combined with clutch, transmission or engine work rather than done on its own. T1 Race Development advises a shop experienced with the VR38DETT and the GR6 transaxle, and the upgraded GT1R flywheel bolts should go in at the same time.

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Description

T1 Race Development GT1R Flywheel for R35 Nissan GT-R

T1 Race Development’s GT1R Flywheel for R35 Nissan GT-R exists because of a failure T1 met on its own builds: the factory flywheel is thin steel, and on cars past roughly 1,300 wheel horsepower it cracks. T1 solved it with two partners who know high-power drivetrains, ETS, the turbo system builder, and Tilton Engineering, whose clutches and flywheels have been fixtures in professional racing for decades. It is the part to fit before the factory flywheel becomes the next thing that breaks on a big-power GT-R.

Development and Testing

The flywheel comes out of the same program that produced T1’s diff cover and transmission braces: build the car, break the part, then engineer the replacement. T1 has taken its own VR38DETT builds past 2,400 wheel horsepower and learned the limits of the factory flywheel on the way, and the GT1R part was designed with Tilton to carry that load without cracking. T1 recommends pairing it with its upgraded GT1R flywheel bolts, so the fasteners are no longer the weak point either.

Features

Replaces the thin steel factory flywheel that cracks at 1,300+ whp
Developed by T1 with ETS and Tilton Engineering
Pairs with the GT1R upgraded flywheel bolt kit
Proven in the T1 high-horsepower build program

Applications

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

Notes

Flywheel bolts are not included; T1 sells its upgraded GT1R flywheel bolts separately and recommends them with this part
The Flywheel for R35 suits built cars past roughly 1,300 wheel horsepower, where T1 has seen the factory part crack
Fitting a flywheel is major drivetrain work, so plan it alongside other engine or driveline jobs with a shop experienced on the GR6

Frequently Asked Questions

At what power does the factory R35 flywheel fail? T1 Race Development reports that the factory GT-R flywheel, which is made from thin steel, often cracks and fails at around 1,300 wheel horsepower and above. Cars below that level rarely need the upgrade. Above it, the factory part becomes a common failure point, which is why T1 developed the GT1R flywheel with ETS and Tilton Engineering.
Does the Flywheel for R35 include new bolts? No. The T1 Flywheel for R35 is sold on its own, and the upgraded GT1R flywheel bolts are a separate part. T1 Race Development recommends fitting the bolts with the flywheel, because once the flywheel can carry big power the factory fasteners become the next weak point. Order both if the car does not already have the upgraded bolts.
Who makes the GT1R flywheel? The GT1R flywheel is the result of a partnership between T1 Race Development, ETS and Tilton Engineering. Tilton is a long-established maker of racing clutches and flywheels, and ETS builds turbo systems for high-power GT-R builds. T1 developed the design for its own GT1R program and sells it under the GT1R name.
Is the GT1R flywheel worth fitting on a mildly modified GT-R? For most mildly modified cars it is not necessary. T1 Race Development developed the flywheel for builds past roughly 1,300 wheel horsepower, where the thin factory flywheel cracks. If the car is heading toward that level, or the drivetrain is already apart for other work, fitting it then avoids a second teardown later.
How difficult is the flywheel installation on an R35? It is a major drivetrain job, so it is normally combined with clutch, transmission or engine work rather than done on its own. T1 Race Development advises a shop experienced with the VR38DETT and the GR6 transaxle, and the upgraded GT1R flywheel bolts should go in at the same time.

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

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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 Flywheel for R35 Nissan GT-R

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T1 Race Development GT1R Flywheel for R35 Nissan GT-R

Development and Testing

Features

Applications

Notes

Frequently Asked Questions

About T1 Race Development

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