Throttle Bodies vs Extrude Hone

[Brad Manhattan Beach]

Freddie:

I would talk to Dan Cragin at Santa Monica Dodge. Based on what I remember from Dan, if your car is close to stock, neither of these will yield much performance. If your engine is pretty built out, you'll see more results. It's worth your dime to make the call to Dan.

Good luck.

 

[Fred(DrivingSchool)Kinder]

Call Dan Cragin is good advice. He has been working on a car that had an engine up grade from Caldwell. The intake was extrude honed, heads ported and polished 1.7 T&D rollers, new pistons (a little more compression), new cam little more lift. Stock throttle bodies were compared vs larger with a net gain of one hp and one foot pound of torque.

 

[JonB]

I have a definite opinion here, having cut open an OEM intake manifold, the answer is clear:

EXTRUDE HONE THE BUGGER ! Then bolt-on TBs. Both is better.

You can bolt on TBs the size of trash cans, but if the manifold and heads wont flow, at good velocitsy AND volume, what good is it? In fact, it is a quaranteed detriment, until roadspeeds approach 80-100 mph !

JonB