I have a 2006 Ram with the 4.7L.. Im wanting to port and polish my throttle body. Will this show any difference in performance or throttle responce on this engine? My friend has an 06 chevy with the 4.8L v8 and he ported and polished his tb and he said he could tell a big difference afterwards. I know one thing, he has a poweraid tb spacer and you can hear it whistling pretty loud when he leaves out down the road, so it has to be getting alot more air. i have one installed behind my tb too and the whistle is not near as loud. we both have k&n CAIs.. If you've done this before on your 4.7L let me know how it turned out and if you have pics post them so i can check em out.
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I understand that when he sends you the TB that it is ported which would clean out any gunk left, but I really would just rather have my own done. I'm sure this is a question for him though.
I wonder if it is that great of a mod? I do get that more air=more combustion and if your CAI is restricted by a small TB then it is useless, but does anyone have an REAL results? $180 is pretty cheap for the possible gains
Here is the link to the fastman. http://www.thefastman.com/ Select your engine size. There is a lot of info on there of what he does. The short of it is that he cleans them out, bores out the centers to a true 68MM or what you want. He then puts in new butterflys to fit the new bores. In the big picture $190 (that has shipping included) is a hell of a deal for a TB.
2003, 1500 4.7, CAI, detroit true track, 4.10 gears, HO cams, e-fan, jet scoop, 180 stat, TCI torque converter, 69mm fastman TB, 08 intake manifold, underdrive pullies, moes fan shroud delete, Gibson shorty headers, magna flow hi flow cat split to dual exhaust after the cat, superchips tune.
Froggy, how would you go about doing this? What does are necessary for completing this task?
Im becoming intrigued... i want to know more. a little sand paper? lol
It's a little more complicated than just getting some sand paper to do it right. I had mine done by Dan Arcand. He opens up the frontside bore to 85 mm and tapers it down to the butterfly. He knife edges the throttle blade and converts the shaft into a half shaft. You could probably sand up the bore easy enough, but converting the shaft is pretty much imposible as a DIY. Even knife edging the blade can be tricky.
'07 5.7 4x4, custom stu cam, ported throttle body, headers, y pipe, dumped exhaust, 180 tstat, aeroforce interceptor w/ afr, 6" suspension, 3" body, 35s, Kenwood DDX512, infinity ref, 10.4" TFT-LCD Flip-down Overhead Monitor, bunch of other stuff