Supertech Vs. Ferrea. Either better than the other?
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Supertech Vs. Ferrea. Either better than the other?
Hey guys, I'm thinking about putting a bigger turbo setup on my Evo. I'm currecntly already running Cosworth 272/272 cams, and since I will end up needing to rev my car out a little higher, I want to get springs/retainers.
Does anyone have any advise about whether I should get Supertech or Ferrea dual spring, retainers? Are they both of equal quality... I seem to hear a lot of good things about both, with nothing bad. Thanks.
Does anyone have any advise about whether I should get Supertech or Ferrea dual spring, retainers? Are they both of equal quality... I seem to hear a lot of good things about both, with nothing bad. Thanks.
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#11
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both are good quality parts. but if your splitting hairs...
Ferrea has slight edge in quality, but with that comes higher prices, some would argue that the quality difference is negligible & not worth the cost increase.
as far as i know supertech is the only one offering .5 over valves & ferrea the only ones offering sodium filled/hollow valves
Ferrea has slight edge in quality, but with that comes higher prices, some would argue that the quality difference is negligible & not worth the cost increase.
as far as i know supertech is the only one offering .5 over valves & ferrea the only ones offering sodium filled/hollow valves
#12
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I have felt both springs in my hands and the Ferrea springs weight dramaticly less than the supertechs.dont get me wrong there both AMAZING springs but the supertech are alot heavier and there a lot nosier valvetrain when the engine is running. I'm going to be installing the Ferrea springs on my car.
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