Honestly, you're imagining the difference. The miniscule gain a set of UDP provide is not , READ NOT, going to be noticeable on a 5500-6000lb truck. Seriously, this is just crazy what people believe and assume. Plain and simple. The frontal area of your truck alone would negate any "noticeable" gain of a couple of extra HP.

Please read my post at the beginning of this thread for a better explanation. I grow tired of reading posts by people with no legitimate experience in these matters and just post up crap that simply make no sense at all. Yeah, I know....go read something else then, right. Well, someone has to try and dissuade the other inexperienced folks on this forum from wasting their hard earned cash. I back up my claims with 1) a thorough understanding of engine/vehicle dynamics, 2) years of real drag racing experience AND experimentation, and 3) just simple common sense with regards to basics mechanics.

UDP are not worth a dime on a 6000lb truck.

 

The only crap is your reading skills...go back and show me where it says I got 25rwhp from "JUST PULLEYS". I also had an e-fan, Dynomax 2 1/4" oem replacement exhaust, K&N panel fitler, Jacobs kit which is what the small bolt-ons mentioned was. Lemme guess the e-fans were worth 15 rwhp, the exhaust 6 rwhp, K&N 2 the pulleys 2 rwhp. Your not the only car expert around here just one without a open mind to things just because they did't work for you. Oh and my car with these mods ran high 13's with 2.73 rear gears but I guess that probably wrong as well. Why the hell is everybody so damn negative around here......

 

It's only a few, but they want EVERYBODY to know about it. They rattle louder than anyone else.

 

Sorry chief, no re-read necessary. You implied through your very words that you gained 25HP with the addition of pulleys and I QUOTE "and a couple other small mods". So Mr. Car Expert, most would consider "e-fan, Dynomax 2 1/4" oem replacement exhaust, K&N panel fitler, Jacobs kit " more than just a "couple other mods". I would say of the 25 extra HP you claim, less that 5 of that came with the pulleys. Simply put, pulleys are worthless. You might as well start bragging about all the MPGs you would gain with the addition of that "Tornado" intake mod they advertise too. The "difference all around" you experienced is due to the "couple" of mods you made. Definitely NOT the pulleys. You will not find a single legitimate racer who will stand by the claims of UDP. Not a one. They just are not worth the VERY TINY bit they contribute. Let's just forget about what they do for a 6000lb areodynamic brick.

PS: You'd make a brilliant car salesman.

 

LOL.

This coming from guy who thinks he noticed a difference from the removal of some UDP.

Come on. Do you honestly think that anyone with any perceivable knowledge of motors is going to buy this claim that you actually noticed it when you "lost" 3-5 HP from your 300HP motor in you 6000lb truck??? LOFL again. With powers of perception at that level, you must also be clairvoyant.

Amazing.

 

Gentlemen....


Come on. Let's not shut the thread down...

 

Shut it down for what?

Having someone's claims disputed?

It could be called a debate of sorts, but shut it down if that's in everyone's best interests.

 

Agreed.

 

When you start throwing little 'under the table' jabs like 'You should be a salesman'... well, that's when it gets personal and things go south.

Take note. If I see any more of those, it's shut down... debate or not. Understood?

 

Let me backpedal a bit,

...delete personal attack....stand by everything else.

Point taken.

 

I'm 50/50 on this.

On one hand, I don't expect to pick up much if any real HP gains. I just want my engine to rev quicker. I'm thinking that a UDP and fan/water pump delete can gain me that. If I wasn't 4x4, I'd also get some 4.10 or 4.56 rear gears

on the other hand, I don't like the thought of possibly shortening the alternator life and having to get a custom tune done just to run UDP.

thanks for the info

 

The debate shall remain *LIVE*.

Thanks.

 

wow - some interesting reading here...

my .02 cents

I'm getting efans and pulleys, final performance mods for the truck before my new 'stang venture. Don't really care what the negative press says at this point. Might as well get the pulleys done while efans are being installed. Every little bit counts with these bolt on mods.. Oh yea, and did I mention I will be going to Troyer Performance for the install. Great honest folks to do business with and I'm fortunate enough to live close enough to have been able to do dyno days and had custom dyno time with Mike. My 93 max per tune rocks and efans and pulleys are a good finishing touch here !

 

You bastard!

 

My final thoughts.....not all mods are for everyone just like not all vehicles or brands are for everyone. I have pulleys on 2 of my vehicles with great results and no downfalls as of yet. I have seen increased power and much quicker ET's on my Mustang (3400lbs full of fuel and myself) and noticed that my trans isn't down shifting on hills that it did before in my truck. I don't have a 6000lb tank as my curb weight is around 4400lbs (1999 F150 XLT 4.6l auto flareside 4X4 regular cab) so maybe that's why I'm seeing better results then some.

I will post results on this site with MPG reports on my F150 either way, good or bad. If they don't work then I will let people know but they are about the best bang for buck on a nearly stock 5.0 IMO, I gained power and ET in the 1/4.

Lastly to rms8, we seemed to get off on the wrong foot and I apoligize if I seemed out of line but every comment you have posted in the thread seems very negative and not just about the product being discussed.

Anyways this is strictly pulley related about an earlier comment. You commented that this should show on a 2900lb 10 second drag car. To me that would be the last place 10-15 horse would show. Anybody knows that your looking at around 500rwhp to get deep into 10's, what would a measly 10-15 hp get you at that point. Now a car running in the 14's with 200rwhp would benefit from 10-15 hp added across the board much more. You can take that 14 second car and add about 70rwhp-80rwhp and pick up 2 seconds in the 1/4 or 12's with traction but to get from 12's to 10's you need about another 200rwhp or so added to your 270-280 rwhp numbers.