by RedMist » Sun Jul 17, 2005 6:17 pm
I have a set of those "ram tubes" they arent perfect, but are cheap. The reason I say they arent perfect is they dont have a 180 degree return and they dont have the correct taper for high end flow. They dont work on paper, using H calculations, for stock intake, they do work on my race engine (which typically use much shorter trumpets) However I have an extra 55mm in the intake (an adaptor plate) than a standard 20 valve. IE my trumpet length is 125mm long. You should loose overall performance by installing those trumpets, however without your engine and a dyno I cant say for certain. Engines are funny buggers.
The answer is Helmholtz!
Toyota ST185 Celica Rally.
Toyota ST205 Celica Rally.
Jimco/ Cosworth 350z Offroader - 609whp at 16psi