Originally posted by Mike:
1. Tis is also why people cut the Bar that holds the tb butterfly and report gains.
2. The best way to do this mod is to remove the bar completely and do the IMRC spring mod. It tricks the IMRC int thinking it is still functioning.
1. They mean cut the ends off the bar to fill the holes and use to work IMRC cable. The rods are NOT in the ports. That's the part that is cut off.
2. Incorrect. If you do that you are waiting for the PCM to open the secondaries (or think it's opening it) before you get your timing & fuel increase.
You are better off running with a CEL and no spring.
The best way is to rig a rpm switch to make the IMRC open early (say 2000-2500rpm) so the PCM ramps up the timing early. Used in conjunction with a return spring and you get the early timing & fuel and do not have the CEL.
chezzter - Look at it from the frontal view. Straight up and down it has the same cross section with or without plates.
Mike - The secondary plates are not setup like the TB plate. No slot between the rods. It attaches to a counter sunk slot on the top side of the rod.
~With the rods left in = the same are normal test pinning. Plus the tiny area gained for the loss of the screws.
