Now since that I had the motor ported along with the manifolds, I might as well go ahead and have a throttle body modification done. If you ever get a chance or have seen the differences between the brass throttle plates of the 13BT and the 13B-REW you'll notice a big difference. The REW TB has two big throttle plates in the secondaries and one small throttle plate in the primary, as for the 13BT all the plates are of similar size to the small plate in the REW TB. As you all know already that I'm trying to flow large amounts of air efficiently to feed the motor. Well any ways here at the shop JRFP started to bore out REW TB primaries to have all matching size plates in the primary and secondaries. The draw back of this modification was that I had to buy two FD TB because I could not find anyone that would sell the same exact size brass plate we were searching for. I ended up buying a good used FD TB from Herblenny and stripped TB from an other FD owner in Gainesville, FL awhile back. With this modification it help with the airflow by probably enhanced the primary size by 30% larger.
Here is the original plate on the left and the new plate installed
The old plate laying on top of the new one just for you all to see how much the size difference is.
From the inside
The FD throttle body all polished on the outside and the inside.
The the throttle body installed onto the motor.
Sorry everyone about the really crappy pictures, but I hope you enjoy.
11-10-2008, 09:09 AM
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