inquirylist

In vehicles with a 2GR-FE engine, even a slight overspeed of 300-400 rpm is often enough to cause contact between the valves and pistons. The result: costly repairs. This risk can be minimised by installing harder JUBU valve springs. For very sporty driving, engines with increased performance and for track day and racing use, we strongly recommend installing harder valve springs.

The spring rate has only increased by 10% compared to the JUBU single valve spring.

Caution: Too much spring force on the valve springs increases power loss and puts unnecessary strain on the valve!

Benefits and advantages

• Reduction of the risk of engine damage in the event of over-revving
• Increased engine stability during very sporty driving as well as track day and racing use
• The standard for JUBU Sport Camshafts 600 and for track/race use with JUBU Sport Camshafts 500

Product details

• 40% more spring force compared to the original valve springs
• Only 10% more spring force than the JUBU single spring, but speeds of up to 8250 rpm are possible
• Speeds of up to 8250 rpm possible
• Very light upper spring retainer
• Camshaft lifts of up to +13.5 mm possible
• Plug & play, can be used as a set

Suitable for

• all Exige S3 models (V6)
• all Evora models
• 3-Eleven
• Emira V6

Scope of delivery

• 1 set of harder JUBU double valve springs (24 pieces)
• 1 set of upper spring seats JUBU (24 pieces)
• 1 set of lower spring seats JUBU (24 pieces)

If you have any questions about your order or the product, please contact us – we will be happy to advise you!