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Underdrive Pulleys? #4729077
04/16/18 05:05 PM
04/16/18 05:05 PM
Joined: Aug 2014
Posts: 412
Florida
lawnguy Offline OP
lawnguy  Offline OP

Joined: Aug 2014
Posts: 412
Florida
I see that there are 2 offerings for underdrive pulleys for my vehicle. I noticed that they are each made from different metals.

Which is the better choice in your opinion,and why?

https://www.summitracing.com/int/parts/asp-528774/overview/year/2000/make/ford/model/f-150

https://www.summitracing.com/int/parts/bbk-15550/overview/year/2000/make/ford/model/f-150

Re: Underdrive Pulleys? [Re: lawnguy] #4729079
04/16/18 05:09 PM
04/16/18 05:09 PM
Joined: Oct 2010
Posts: 9,529
Virginia Beach
Astro14 Offline
Astro14  Offline

Joined: Oct 2010
Posts: 9,529
Virginia Beach
Why do you want to under drive your accessories?

Do you race the truck?

The drawback is reduced cooling system and alternator effectiveness if your truck is idling in the heat...which would be common in FL, wouldn't it?


32 Packard 15W40
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: Underdrive Pulleys? [Re: lawnguy] #4729083
04/16/18 05:13 PM
04/16/18 05:13 PM
Joined: Mar 2013
Posts: 5,300
The Midwest
skyactiv Offline
skyactiv  Offline

Joined: Mar 2013
Posts: 5,300
The Midwest
If you live in Florida and pull a trailer, I do not recommended installing one. You need to sell that F150 with it's 4.6 V8
and get something much quicker like a Chevy or GMC with a 6.0L V8 or an F150 with a Ecoboost 3.5.


Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual

Re: Underdrive Pulleys? [Re: lawnguy] #4729085
04/16/18 05:17 PM
04/16/18 05:17 PM
Joined: Feb 2003
Posts: 8,077
Jupiter, Florida
Cujet Offline
Cujet  Offline

Joined: Feb 2003
Posts: 8,077
Jupiter, Florida
Aluminum is not a great pulley material for poly v belts. Steel is considerably longer lasting.

If you are removing a harmonic damper and installing an underdrive pulley, consider that some engines have crankshaft vibration related failures.

One common failure that happens when a harmonic damper is removed, is the crank driven oil pump gears can shatter.


People who count on their fingers should maintain a discreet silence.
Re: Underdrive Pulleys? [Re: lawnguy] #4729094
04/16/18 05:26 PM
04/16/18 05:26 PM
Joined: Oct 2010
Posts: 9,529
Virginia Beach
Astro14 Offline
Astro14  Offline

Joined: Oct 2010
Posts: 9,529
Virginia Beach
If you need more power, sell this truck and buy one with a 5.4.

No tuner, pulley, exhaust, or intake will make enough difference in your case.

Honestly, you will be unhappy with the results of any of the above. They won't fix what's wrong with your truck: the 4.6


32 Packard 15W40
02 Volvo V70 T5 0W40 M1
02 Volvo V70 XC 0W40 Edge
05 MB S600 0W40 M1
16 Tundra 1794 5W30 Pennzoil Ultra
Re: Underdrive Pulleys? [Re: lawnguy] #4729128
04/16/18 06:04 PM
04/16/18 06:04 PM
Joined: Oct 2014
Posts: 13,297
Canyon County Idaho
CT8 Offline
CT8  Offline

Joined: Oct 2014
Posts: 13,297
Canyon County Idaho
Do not waste your $$$$.


2015 Ford F150 2.7
2018 Ford F350 6.2
Re: Underdrive Pulleys? [Re: lawnguy] #4729150
04/16/18 06:21 PM
04/16/18 06:21 PM
Joined: Jun 2003
Posts: 34,074
ME
eljefino Offline
eljefino  Offline

Joined: Jun 2003
Posts: 34,074
ME
Did you ever change your axle ratio? That's how you get bolt-on power for cheap.

Re: Underdrive Pulleys? [Re: lawnguy] #4729153
04/16/18 06:29 PM
04/16/18 06:29 PM
Joined: Apr 2008
Posts: 39,149
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline

Joined: Apr 2008
Posts: 39,149
Ontario, Canada
This is an epic waste of money on a truck. If this was an old 5.0L that you were drag racing and needed to shave a 10th or 2, sure, underdrives and an E-fan all day long. Plus gears, aluminum driveshaft, icing the intake....etc. But on a DD truck? why are we continuing to try and chase the mole hair in the hay field? You already know what makes sense, we've discussed it many times now.


2019 RAM 1500 Sport - Mobil 1 EP 0w-20, FRAM Ultra
2016 Grand Cherokee SRT - Castrol Edge 0w-40, FRAM Ultra
Re: Underdrive Pulleys? [Re: lawnguy] #4729204
04/16/18 07:11 PM
04/16/18 07:11 PM
Joined: Feb 2013
Posts: 11,343
Phoenix, AZ
Nick1994 Offline
Nick1994  Offline

Joined: Feb 2013
Posts: 11,343
Phoenix, AZ
This truck must be a race car by now with all the mods done to it.

Let's see a 0-60 video!


2015 Hyundai Sonata 2.4L 92k STP Synthetic HM 10w30 & Wix
2000 Toyota Camry 2.2L 233k Mobil Super HM 10w40 & Fram Ultra
1996 Jeep Cherokee 4.0L 148k Mobil 1 HM 10w40 & Fram Ultra
Re: Underdrive Pulleys? [Re: lawnguy] #4729210
04/16/18 07:16 PM
04/16/18 07:16 PM
Joined: Apr 2016
Posts: 815
Specific Ocean
Kibitoshin Offline
Kibitoshin  Offline

Joined: Apr 2016
Posts: 815
Specific Ocean
lol this guy looking for big power from simple bolt ons.

Better off shopping for a used HD truck preferably an F250 6.2 gasser.


Shin Gekiretsu Shin'ou'hou
01 Toyota Tundra 2WD V8 4.7L
02 Chevy Silverado C1500 V8 5.3L
Re: Underdrive Pulleys? [Re: lawnguy] #4729232
04/16/18 07:38 PM
04/16/18 07:38 PM
Joined: May 2005
Posts: 543
WI
oily boyd Offline
oily boyd  Offline

Joined: May 2005
Posts: 543
WI
Underdrive pulleys were a waste of money on my 5.0 Mustang in 1990 and they're still a waste of money now; the only "benefit" you may see is higher coolant temps at idle in Florida.

Those reviews on the sellers website saying that you can feel the difference are nonsense. Other poster who said change rearend ratio is spot on but: gotta set them up correctly so they're not noisy/wear prone and make sure your drive shaft is balanced well enough for the increased highway revs.


Kind Regards,

Boyd
Re: Underdrive Pulleys? [Re: lawnguy] #4729290
04/16/18 08:24 PM
04/16/18 08:24 PM
Joined: Nov 2017
Posts: 683
South Carolina
eyeofthetiger Offline
eyeofthetiger  Offline

Joined: Nov 2017
Posts: 683
South Carolina
The aluminum pulleys are the better choice, of course, because they are shiny. I might also assume that they are lower mass than the steel pulleys. Race car.


2017 Ford Fiesta 1.0T - Valvoline SynPower 5W-20, Motorcraft FL910S
1988 GMC K1500 4.3/700R4 - Supertech 15W-40, Fram TG3980
1986 Ford Ranger 2.0 - uhh
Re: Underdrive Pulleys? [Re: lawnguy] #4729396
04/16/18 09:36 PM
04/16/18 09:36 PM
Joined: Aug 2004
Posts: 2,178
5600 feet elevation, Arizona
double vanos Offline
double vanos  Offline

Joined: Aug 2004
Posts: 2,178
5600 feet elevation, Arizona
I agree with the rear end ratio change as the best solution. Had a co-worker want to put a blower on his 5.3 Chevy pick up. He took my advice and scraped the blower idea, after the 4:10s went in the difference was profound. Cost him a lot less than a blower.


Sabine Schmitz is the Queen of the 'Ring; Svetlana Kapanina is the Queen of the SKIES...
Re: Underdrive Pulleys? [Re: lawnguy] #4729697
04/17/18 09:05 AM
04/17/18 09:05 AM
Joined: Dec 2006
Posts: 825
The IL
SevenBizzos Offline
SevenBizzos  Offline

Joined: Dec 2006
Posts: 825
The IL
I'd go BBK on them. People have noticed differences with them. If you're blasting an after market radio or the air conditioning, you'll notice it negatively.

I'm in agreement that to really wake up that engine, a new ring and pinion and a tune are the best option.

Re: Underdrive Pulleys? [Re: lawnguy] #4733264
04/20/18 03:59 PM
04/20/18 03:59 PM
Joined: Aug 2014
Posts: 412
Florida
lawnguy Offline OP
lawnguy  Offline OP

Joined: Aug 2014
Posts: 412
Florida
It's so funny how all I do is ask a simple question,and I get so much negative comments. So funny!

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