Tuning Developments Uprated Performance Drop In Valve Spring & Retainer Set for all Nissan Skyline R33 R34 GTST GTT RB25DET (inc NEO) Engines






More New product launch’s from Tuning Developments, we have been working for over 18months on a new range of valve train products to fit the RB25DET pre NEO and NEO Engines, and after testing these products for so long, they are now available.

Tuning Developments Performance Valve Spring Kits use a single spring setup with the optimum base spring pressure to suit the RB25 Cylinder Head, they have been custom developed for Tuning Developments ONLY and are one of the best drop in valve spring sets on the market today. Along with this we include a custom Retainer Set for Both the Exhaust Side & Intake Side which allow for further increase in valve lift upto 10mm Lift on the Intake Side and 10.50mm Lift on the Exhaust Side.

Standard valve springs are common to show signs of valve bounce/weakness once running above standard rev limit when running bigger turbocharger setups with high boost pressures or when running high RPMs consistantly, we strongly recommend these Performance Uprated Valve Spring Kits for anyone building a Forged Engine or looking to have one built as these ensure perfect performance no matter what RPM the engine is running.

100% direct fitment onto a Standard RB25DET Cylinder Head, Also a perfect combination with Performance Camshaft Kits, we strongly advise a experienced engine builder install these products and all required measurements should be checked prior to complete install, if your unsure or would require fitting please contact us for further details and pricing.

Fitment:

Nissan Skyline R33 GTST RB25DET
Nissan Skyline R34 GTT RB25DET NEO


If your looking for more information or would like to make a Trade Enquiry, please call or email us with your requirements and we will be happy to help.


Trade/group sales welcome, please contact us on enquiry@tuningdevelopments.co.uk with your requirements.



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