Why replace the factory damper with the Boost Logic Crank Pulley for R35?

Boost Logic believes the factory damper is tuned for the stock power level and links crankshaft resonance to erratic main bearing wear in the VR38. The Boost Logic Crank Pulley for R35 uses a larger, higher quality damper ring designed for engines producing more torque than factory, so it suits tuned and built cars.

Is the damper SFI approved?

Yes. Boost Logic lists the damper as SFI 18.1 approved. SFI 18.1 is the specification covering crankshaft hub harmonic dampers, which some racing organizations require in their rules, so the part suits cars that see drag strip or track use as well as street driving.

Does it change the pulley diameter?

No. The Boost Logic damper keeps the OEM crank pulley diameter, so the accessory drive runs at the same ratio as the factory setup. The benefit comes from the larger damper ring, which controls torsional vibration, rather than from underdriving the accessories. That keeps the change focused on vibration control.

Does the pulley have timing marks?

Yes. Boost Logic laser engraves timing marks around the full 360 degrees of the damper. That makes the marks readable wherever the engine stops, which helps during timing checks and engine assembly work on a built VR38, alongside the SFI 18.1 approval and OEM pulley diameter Boost Logic also lists.

Does a stock-power GT-R need it?

Not usually. Boost Logic designs the damper for a broader range of power levels and for engines making more torque than factory, where resonance is stronger. On a car at stock power the factory damper is working within the range it was tuned for, so the upgrade matters most once the engine is tuned, fitted with larger turbos or rebuilt.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

Reviews

Product Inquiry

Description

Boost Logic Crank Pulley for R35 Nissan GT-R

Boost Logic’s Crank Pulley for R35 Nissan GT-R is a harmonic damper built to control crankshaft resonance on VR38 engines making more torque than stock. Boost Logic believes the factory damper is tuned for the stock power level, likely sharing its design with the VQ35 part, and links it to erratic main bearing wear once output rises. The Boost Logic unit uses a larger, higher quality damper ring than factory, is SFI 18.1 approved and keeps the OEM pulley diameter. It makes most sense on a tuned or built GT-R; a car at stock power is running within the range the factory damper was made for.

Design and Performance

Crankshaft resonance first shows up as erratic main bearing wear, and stronger resonance can lead to crankshaft failure over time, although Boost Logic does not expect to see that failure in the VR38. Its damper is designed to work across a broader range of power levels and modifications than the factory part, and it carries 360-degree laser engraved timing marks.

Features

Reduces torsional vibration
SFI 18.1 approved
Larger, higher quality damper ring than the factory unit
360-degree laser engraved timing marks
OEM crank pulley diameter
Designed for a broader range of power levels and modifications

Applications

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

Notes

The Crank Pulley for R35 keeps the OEM diameter, so the accessory drive ratio is unchanged
Designed for the VR38DETT engine in the R35 GT-R
Boost Logic does not list a crank bolt or other hardware as included

Frequently Asked Questions

Why replace the factory damper with the Boost Logic Crank Pulley for R35? Boost Logic believes the factory damper is tuned for the stock power level and links crankshaft resonance to erratic main bearing wear in the VR38. The Boost Logic Crank Pulley for R35 uses a larger, higher quality damper ring designed for engines producing more torque than factory, so it suits tuned and built cars.
Is the damper SFI approved? Yes. Boost Logic lists the damper as SFI 18.1 approved. SFI 18.1 is the specification covering crankshaft hub harmonic dampers, which some racing organizations require in their rules, so the part suits cars that see drag strip or track use as well as street driving.
Does it change the pulley diameter? No. The Boost Logic damper keeps the OEM crank pulley diameter, so the accessory drive runs at the same ratio as the factory setup. The benefit comes from the larger damper ring, which controls torsional vibration, rather than from underdriving the accessories. That keeps the change focused on vibration control.
Does the pulley have timing marks? Yes. Boost Logic laser engraves timing marks around the full 360 degrees of the damper. That makes the marks readable wherever the engine stops, which helps during timing checks and engine assembly work on a built VR38, alongside the SFI 18.1 approval and OEM pulley diameter Boost Logic also lists.
Does a stock-power GT-R need it? Not usually. Boost Logic designs the damper for a broader range of power levels and for engines making more torque than factory, where resonance is stronger. On a car at stock power the factory damper is working within the range it was tuned for, so the upgrade matters most once the engine is tuned, fitted with larger turbos or rebuilt.

About Boost Logic

Boost Logic was founded in Austin, Texas in 2003 and made its name with Toyota Supra turbo kits, setting street car records at 6speed record days and the Texas Mile that stood long after the company stopped racing Supras competitively. It designs turbo systems, titanium exhausts, intercoolers and engine components for the Toyota Supra, Porsche 911 Turbo, Nissan GT-R, Ferrari and Lamborghini, and its R35 GT-R builds have trapped over 180 mph in the quarter mile and over 200 mph in the half mile.

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.

Reviews

There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Product Inquiry

First Name (*required)

Last Name (*required)

Your E-Mail (*required)

Telephone Number (*required)

Country (*required)

Vehicle Year / Make / Model (*required)

Please Explain What do you want to do with your vehicle

Additional Information (optional)

I agree to the terms & conditions and privacy policy and to have Bulletproof Automotive LLC contact me for promotion, marketing and other purposes via email, phone or SMS message.

Boost Logic Crank Pulley for R35 Nissan GT-R [BL 02010801]

Guaranteed Safe Checkout

Boost Logic Crank Pulley for R35 Nissan GT-R

Design and Performance

Features

Applications

Notes

Frequently Asked Questions

About Boost Logic

Reviews