TROYER underdrive pulleys
 

Hi, was just wondering if anyone has used the troyer perf. underdrive pulleys and had any luck with them? they claim around 13hp with a custom tune was curious if anyone had feed back on them as i cant find many reviews. Also i have yet to recieve my custom tunes, if i got it would it matter if i put it on after i got my custom tunes in? I dont know if i can make a custom tune with the programmer on top of the custom tune from bill to change the idle speed? thanks everyone for any word!

I've heard good things about u-drive pulleys from Troyer. I think you would be getting a quality product. And, the HP claims seem reasonable to me considering how they work.

You can simply go into the "Custom Options" menu and raise your idle speed once you have your custom tunes. You're not really putting a custom tune on top of another one here, just making a small adjustment to one of the parameters.

You can install the pulleys before or after getting the tunes, makes no difference.

- Jack

Ok awesome! i know that i need to change the belt soon due to all the chirping :drool2: haha, is there a big difference between the TROYER and BBK? the bbk is a bit cheaper and i can get free shipping too!

Let me know if anyone has an opinion on other brands of u-drive pulleys. I know Summit offers a few different brands that are comparable in price to BBK.

Fair warning to all interested in udp.

Watch out who you deal with and what product descriptions you are reading! Unless you like customer service people and want to be on a first and last name basis with them.

Troyer may be a bit more $$$ but his r+d into the pullies really pays off! Especially when you are half way through the install and figure out that you have the wrong kit or better yet belt.

So my vote is for troyer udp.

Haven't heard anything about the BBK's?

Just some thoughts!

Lars

Hey lars thanks for the advice i think i'm gonna hold off for now. Between the part, shipping, and install it seems like it would make more sense to just wait for my gryphon's custom tunes :cool_beans:

Thanks from me too Lars. Those were my thoughts about Troyer, but I thought it better to hear from someone who had experience with the product.

Didn't someone on this forum mount pulleys from Summit? I seem to remember a thread about this with positive results, but I'm too lazy to look for it.

- Jack

Here's the link for Dixie Design's experience with summit.
http://dygytalworld.ehost-services13...searchid=16173

This is why I warn of good product description and also do the mod when part stores are open!

There is also a guy that has some 4.6 ones for sale maybe? Don't remember the user name but it maybe in the link.

Lars

That link didn't work, Lars. I suspect this is the one you meant: http://dygytalworld.ehost-services13...ghlight=summit

- Jack

Thanx Jack!

The other thing that bothers me in that my constantly growing knowledge of mods and tuning, is that some to most of the advertising out there for these types of products is at WOT!(wide open throttle)

I am not bashing anyone particular vender!
I just thought to suggest this because how many of us have been mislead by not particularly false advertising but the lack information given to us when we are deciding that we need more POWER!

Like the udp.
13 hp at wot hmmmm=maybe 2-4 hp in daily driver real world mode.
The ideal hp can be acheived racing down the track but let's get real. How many of us get to do this?

Ok off the soap box.

So when you looking at mods multiply the hp by .25 and that maybe the more realistic number you are going to get for your daily driver.

Lars:2thumbs:

Excellent point Lars! I'm glad you brought it up.

What we need, as you say, is some information that is more relative to our daily driving habits. I think fuel economy is one such metric and passing performance is another. I can see towing capacity, for those that tow. What else is there? Longevity?

- Jack

The longevity part of the equation should be taken care of by an approval sticker found either on the crank pulley or a lose one to be applied by user in the engine bay.
The sticker indicates that the pulley has passed testing and is rated to be used on the motor it is to be installed on.
Can't really crawl under the truck right now to see what it says. But if I remember right it should be SFI Approved?

Lars

I was thinking more along the lines of what the mod could do for the longevity of other components in the truck (possibly by reducing wear and tear). For instance, I have seen claims that u-drive pulleys might extend the life of water pump bearings since the pump is spinning somewhat more slowly. I suspect this benefit is pretty small, but maybe it's worth noting (and I don't really know how you back up such a claim).

But, I like the label that the device has met certain minimum requirements and so should be safe to use. Kind of like the UL sticker on electrical equipment.

- Jack

When I put the UDP from Troyer on my truck I did notice that I got slighty better mpg, and better passing power. Been on my truck 2 yrs now with no issues. But at the time it was installed I also had the AF1 CAI kit installed at the same time so I can't say which gave the better gain but I'm happy with it.

97xl,
tell me about your wheels - what are they, what size, etc. i like the look of them.

jg

FWIW I had a set of MARCH underdrive pulleys on my F-150 (5.0) and hated them. Alternator wouldn't hardly charge at idle, parking lots were a pain because of the reduced power steering assist, so I ended up giving them away. Just sayin........

That's a good point also.
Some of the udp kits out there are a little bit to much underdriven.

I was skimming through because I've added the troyer pulleys to my list for future modifications. There were some valid points mentioned like real horsepower and the product's effect on the life of other parts in this thread. I also wouldn't mind having a little more tension in the steering wheel when going at low speeds. Has anyone else experienced this on their truck with any other kits like the troyer? I'm just trying to weigh the pros and cons of the $225+S/H kit. The gryphon is still paying for itself (it'll be quicker now that gas prices have gone up!:sigh:) so I'll probably wait for that before I buy another expensive upgrade. I'm not really worried about lowering the output of the air conditioner because I usually just have the windows down anyway. I'm not worried about the electrical that much either because my sound system pulls next to nothing when I run just the aux. speakers(like if I'm just sitting in there listening to music waiting for something). Would it be possible to leave that alternator pulley alone or would that mess up the belt size too much? Also, how difficult were they to install? I've got a list of mods longer than I care to list and they were all put in by me (except for the rims because I sold my stock rims for $100 when they expected them for free. :woot:) so I figure why start now if it's relatively easy.