New Complete set of 16 Ferrea “Dual Valve Springs” valve springs, Titanium retainers and Location rings
Seat pressure – 31 kg @ 38.5mm
Open pressure – 80 kg @ 28.5mm
Spiral height- 24mm
Max net lift – 13.5mm
The Ferrea spring package is a complete valve spring upgrade for the 2ZZ-GE engine, and the only one on the market as a complete set
An extra high resilience ensures that more aggressive camshafts can be used with more boost and higher revs.
Do you want to run up to 10,000 rpm? Then these are the valves you want to use.
Due to the high resilience, these are only recommended for extreme engines because they can cause higher wear on the valve seats and camshafts.
For most applications, the MWR valve springs are sufficient.
The standard valves are often the weak point, and it is highly advisable to replace them if these springs are used.
– Suitable for the following models:
– Celica T-Sport 2000-2006
– Corolla T-Sport 2002-2005
– Corolla T-Sport Compressor 2005-2007
And also for the following Lotus models:
– Lotus Elise 111R 2004-2006
– Lotus Elise R 2006-2010
– Lotus Elise SC 2008-2010
– Lotus Exige 2004-2008
– Lotus Exige S 2006-2013
– Lotus Exige 260 Cup 2011-2013
– Lotus 2-Eleven 2007-2010