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Dgal · 05-07-2010, 09:40 AM

I reserve the right to be wrong, but I believe the Nascar teams have experimented with larger ratio rocker arms in order to reduce the amount of spring pressure on a given lift/duration. Less spring pressure should equate to less parasitic hp loss within the valve train.

05-07-2010, 09:40 AM	#31
Dgal Member Join Date: Dec 2009 Posts: 169 Likes: 0 Liked 0 Times in 0 Posts	Re: Rocker Arms I reserve the right to be wrong, but I believe the Nascar teams have experimented with larger ratio rocker arms in order to reduce the amount of spring pressure on a given lift/duration. Less spring pressure should equate to less parasitic hp loss within the valve train.