I am looking to upgrade my Throttle Body and have seen a couple different choices. Other than a couple hundred bucks, does anyone know any differences between the Fastman and the one from Hughes engines? I am looking at the 52mm. I have a 96 2500 4x4 with the 5.9.

 

sorry I do not have answers for you but I have a couple of things. First, nice lookin truck you have there. Second, is the only difference between stock and aftermarket TB's the size of the opening or is there something else?

 

really the only difference between the two companys is that the fastman take the TB you send him after you receive yours and uses that to make the new ones where huges has to get there own. ive heard nothing but good things about the fast man. i have yet to do it, one of these days, its on the bottom of a very long list. im just holding off because where i would might be getting a CNC so i might make mine myself. for RIPTO, he bores the stock TB out. puts in new butterfly valves and smooths out the edges around the bores so its a smoother transision into the engine.

 

is there a noticable performance gain by getting an aftermarket TB? and is it mostly in acceleration?

 

They are both definately great brands. The fastman can do no wrong, and he's very responsive to any questions you may have for him, just email him from thefastman.com. Personally, I chose to go with an F&B, not only because of the unbelievable looks, but because, overall, they are the most complete and best designed throttle bodies for a mopar. F&B is completely CNCed aluminum and polished completely smooth for the best airflow you can get. You can find them at v8performance.com. Unfortunately, there are much more expensive than both hughs or fastman. Hughs vs. Fastman...Fastman wins.

 

You might consider modifying your own like this owner did:

http://www.dakota-truck.net/UPGRADES/TB02/index.html

You can also get 'sworn under oath' information about what Chrysler thinks about throttle bodies by reading and studying their US Patent on the Magnum engine series of throttle bodies:

http://freepatentsonline.com/4905647.html

The gains from the throttle body mods according to the truthful companies is in the 4-7 hp range.

You can get a lot more 'bang for the buck' by taking off your cylinder heads and doing a mild DIY port job that simply cleans up the bowls above the valves and knocks the 'frog hair' casting nibs off the ports.

Want the biggest TB for the Magnum of all?



http://www.bionicdodge.com/bionic/in...34138#msg34138

 

That just might be the ugliest TB I've ever seen. Some people shouldn't be allowed to play with die grinders.

 

Don't forget the Mopar Performance 4 barrel throttle body: http://www.mopartsracing.com/parts/fuel.html

I'm seriously thinking about having a manifold built for my truck to run it [8D]

 

I agree, looks like a redneck went crazy on that TB with a grinder, as for gains, if your looking for gas mileage plumb in a V-6 because the Fastman didnt increase my mileage at all, just nice smooth throttle response over stock, very noticable difference.

 

Hey, anything that increases power without increasing displacement will increase gas mileage, as long as you can keep your foot from hammering down. It’s a simple formula, the more power you make the easier the motor can create momentum. And good God, that TB looks like a professional job, but there seems to be a lack of engineering sense involved, (sometimes common sense is not the best sense) it’s not something I’d put on my ride because by creating a single oval butterfly valve that is greater than two circular valves, you get obtrusive forces that tend to fight on another creating a flow that cannot completely pass through the entire valve, whereas, two smooth circular valves will create a even flow(it‘s mechanical engineering applied through schematics). And true, gains from a TB mod are in the 4-7 HP range, but that’s only when you clean up the flow obstructions from an original TB, but by increasing displacement of the TB, (which is what you achieve when purchasing an aftermarket TB) you increase the pure mass flow and your gains are only limited to the performance of your complimentary parts such as jets and fuel pumps etc.(which are, in the most part, unnecessary to replace because of the regulation performed by the PCM because the jets and pump are both capable of performing above stock).