Test results with new TB
Senior Member
Joined: Mar 2001
Posts: 1,352
Likes: 0
From: CORAL SPRINGS, FL. USA
WCfan, its really simple.It was demonstrated to me that the front divider, left untouched ,caused turbulance with the incoming air as it enters the T.B. The elination of the casting bosses and tapering of the entering bores creates a smoother transition right before they hit the opened butterflies. This creates a more favorable "direct shot" of undisturbed air. look at it this way: even the best designed heads, when ported and even "cleaned up" still show an increase in horsepower even though the valve size remains the same.Think about it. And BTW, TZrider happens to live about 20 minutes from me and turned me on to Rockwell.Paul happens to be a bright guy who,like myself, is very **** about what he does and does not put on his truck.And as far as I'm concerned, I could give a sh*t who uses what.If I think it works I put it on.If it doesn't, I give it back...and I let anybody know that before hand.I try to pass my findings on to my fellow Lightning brothers.
Senior Member
Joined: Dec 2000
Posts: 100
Likes: 0
From: Bright, Or.
Guys.
I am not trying to step on anybody’s toes and I made no personal attacks (tried to have a little fun though). As you perhaps can tell I do not care for G-tech meters and testing no matter how many times you test with equipment that is greatly subject to human error, you will lose your repeatability. If we were talking about a modified throttle body sitting on a TPI type intake manifold I could see some merit to the porting action. What we are looking at here is at induction system in front of a supercharger (pump), a supercharger that has a major U-turn before the rotors (as in big time restriction) so all of the nice polishing action is very minor at best. Now if you told me that you increased the bores from 57mm to 58.5mm, which you could, do, I would believe that you could report a gain.
I am not trying to step on anybody’s toes and I made no personal attacks (tried to have a little fun though). As you perhaps can tell I do not care for G-tech meters and testing no matter how many times you test with equipment that is greatly subject to human error, you will lose your repeatability. If we were talking about a modified throttle body sitting on a TPI type intake manifold I could see some merit to the porting action. What we are looking at here is at induction system in front of a supercharger (pump), a supercharger that has a major U-turn before the rotors (as in big time restriction) so all of the nice polishing action is very minor at best. Now if you told me that you increased the bores from 57mm to 58.5mm, which you could, do, I would believe that you could report a gain.
