TB and Spacer?

[TUGGER]

Why no gains from the TB and Spacer?

 

[rmays06]

Still not proven, take solice in the fact that the engine from the factory breaths adequate (sp) enough. N/A you won't really need them, spend the money on something else.

 

[Ken04]

Why no gains from the TB and Spacer?

a spacer is an absolute waste of money. The theory and practice of a spacer under a carb is well proven. But an inch, a half an inch because it increases the velocity and atomization of the air/fuel mixture when the carb sits directly on top of the intake runners. Adding a spacer to a tb downstream of a 12" long intake tract does nothing but pad the pockets of the manufacturer and the retail store. All that stuff is garbage, the Helix, the spacer with the fake-o grooves in it to 'spin' the air is junk. A 70mm tb properly tuned with after adding a cold air intake will help, but it's just good mechanics. More air and fuel in, more hp.

 

[scrming]

a spacer is an absolute waste of money. The theory and practice of a spacer under a carb is well proven. But an inch, a half an inch because it increases the velocity and atomization of the air/fuel mixture when the carb sits directly on top of the intake runners. Adding a spacer to a tb downstream of a 12" long intake tract does nothing but pad the pockets of the manufacturer and the retail store. All that stuff is garbage, the Helix, the spacer with the fake-o grooves in it to 'spin' the air is junk. A 70mm tb properly tuned with after adding a cold air intake will help, but it's just good mechanics. More air and fuel in, more hp.

actually... even a larger throttle body on our cars has shown 0 gains... even when going FI... the bottleneck is else where... not the TB...

 

[Ken04]

actually... even a larger throttle body on our cars has shown 0 gains... even when going FI... the bottleneck is else where... not the TB...

agreed, I have a friend back east with more than a few mods including a 70 mm tb. He also has a 'shop car' he calls it with a 4.0 V6 making 440 rwhp. But it has more than a bigger tb. His stock car has cai, chip, true duals, Hurst shifter that dyno's a bit better than stock. But a straight tb swap will not add hp/trk, true enough.

 

[rmays06]

a spacer is an absolute waste of money. The theory and practice of a spacer under a carb is well proven. But an inch, a half an inch because it increases the velocity and atomization of the air/fuel mixture when the carb sits directly on top of the intake runners. Adding a spacer to a tb downstream of a 12" long intake tract does nothing but pad the pockets of the manufacturer and the retail store. All that stuff is garbage, the Helix, the spacer with the fake-o grooves in it to 'spin' the air is junk. A 70mm tb properly tuned with after adding a cold air intake will help, but it's just good mechanics. More air and fuel in, more hp.

ken great write up man, I understand the principle behind it now...thanks.