throttle body
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06-13-2007, 01:02 AM
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#29
06-13-2007, 04:59 PM
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RE: throttle body
ORIGINAL: superdak05
yes it will. if you go to big then you wil lose a lot of low end grunt. but in the higher rpm range it will be a screamer. but if you keep the stock cam set up the refabbed 68 will be just fine. you will notice the truck will not be so sluggish off the line. it will maintain speeds while going up a hill with the cruise on and it will even drop your rpm a little while cruising on the highway
yes it will. if you go to big then you wil lose a lot of low end grunt. but in the higher rpm range it will be a screamer. but if you keep the stock cam set up the refabbed 68 will be just fine. you will notice the truck will not be so sluggish off the line. it will maintain speeds while going up a hill with the cruise on and it will even drop your rpm a little while cruising on the highway
Recommended sizes:
Working with the 4.7 motor has shown 68mm to be the optimal size for street performance use. This is the size I recommend. I can machine both the Dodge 4.7 99-2000 65mm and 2001-present 68mm TB's to a True 68.50mm bore.
As for KRC, don't go to them for too much. They're way over priced. Fastman sells them a whole lot cheaper than KRC.
If you talk to Dan, he also sells the performance cams and can reprogram the ECU. You'll be looking at about $1500 after all is said and done with just those three things. That's quite a bit of HP/TQ for the price.
I was going to go with a 69mm just to one up the stock, but he said that I would do a lot better with the 68.5. If you're going to get a S/C, then get the 72mm, but don't install it until you get the S/C.