thinking of changing the cam...
Administrator
Joined: Apr 2010
Posts: 87,453
Likes: 4,218
From: Clayton MI
any difference was purely subconscious. Throttle body space does absolutely nothing on these trucks.
The rockers would be a much better idea than the cam. Somewhere in the neighborhood of 300 bucks, put 'em on, and they just work. With a cam, you will not be able to do much, before you need a custom tune, to make it work. (more money....) and getting it dialed in via mail order will be a drag.
The rockers would be a much better idea than the cam. Somewhere in the neighborhood of 300 bucks, put 'em on, and they just work. With a cam, you will not be able to do much, before you need a custom tune, to make it work. (more money....) and getting it dialed in via mail order will be a drag.
Rookie
Joined: May 2010
Posts: 75
Likes: 0
From: Columbus
I had the Trans-Dapt throttle Body Spacer on and I noticed a lil bit of take-off torque and like .2-.5 mpg gane. I just took it off because of clearance issues with my Cold- Air intake...the spacer ruined my cold-air breather that sits on top of the throttle body 
so I am getting rid of the spacer and keeping a cold-air intake system
so I am getting rid of the spacer and keeping a cold-air intake system
Champion
Joined: Jun 2004
Posts: 2,811
Likes: 2
From: Ft Campbell, KY/TN
Throttle body spacers cost from 50-70 bucks. I would use that 50-70 dollars to get THESE, and not a throttle body spacer:
MSD or Hypertech Coil $45: More spark power means you can gap your plugs at about .041 and get a power/MPG increase there.
OR
Pulstar iridium plugs: $9 each. They will create the best spark. I have not tried them, but I know someone who bought NGK V-powers and Pulstar plugs. Tried both and was going to return the pulstars if they were not as advertised. THere was so much of a difference between the two that the person kept the pulstars and returned the NGKs.
No one can tell me that a throttle body spacer can "twist" the air so much to create any gain. Especially with the size of the Kegger!!! You can't convince me that the air will be fulened from the throttle body through that massive kegger and into the conbustion chambers any different than without.
TB spacers work on TBI engines, not FI engines.
MSD or Hypertech Coil $45: More spark power means you can gap your plugs at about .041 and get a power/MPG increase there.
OR
Pulstar iridium plugs: $9 each. They will create the best spark. I have not tried them, but I know someone who bought NGK V-powers and Pulstar plugs. Tried both and was going to return the pulstars if they were not as advertised. THere was so much of a difference between the two that the person kept the pulstars and returned the NGKs.
No one can tell me that a throttle body spacer can "twist" the air so much to create any gain. Especially with the size of the Kegger!!! You can't convince me that the air will be fulened from the throttle body through that massive kegger and into the conbustion chambers any different than without.
TB spacers work on TBI engines, not FI engines.
Legend
Joined: Jul 2007
Posts: 7,843
Likes: 13
From: DFW, Texas
I had the Trans-Dapt throttle Body Spacer on and I noticed a lil bit of take-off torque and like .2-.5 mpg gane. I just took it off because of clearance issues with my Cold- Air intake...the spacer ruined my cold-air breather that sits on top of the throttle body so I am getting rid of the spacer and keeping a cold-air intake system
so I am getting rid of the spacer and keeping a cold-air intake systempurely placebo effect.
There is no way that you can "spiral" a column of air, allow it to enter a large open area like the plenum while still spiraling, and do a 180* turn up a runner and continue to have any spiral effect while going into a combustion chamber.
If the old days of Carburetors and Throttle Body injection, a spacer may have have allowed the fuel to atomize slightly better than with out one. But as the modern engine injects fuel just before entry into the combustion chamber, the spacer's only function is to serve as a pedestal to raise your air hat higher off the intake.