Power Hungry Performance Forum - Underdrive Pulleys

Page 6 of 8

« First

Show 100 post(s) from this thread on one page

Power Hungry Performance Forum (http://forum.gopowerhungry.com/index.php)

- 2004 to 2008 F-150 and Mark-LT (http://forum.gopowerhungry.com/forumdisplay.php?f=13)

- - Underdrive Pulleys (http://forum.gopowerhungry.com/showthread.php?t=600)

88Racing

Mon, March 16th, 2009 09:11 AM

Really, 4.6 still takes the stock size belt.

Just for curiousity what pulleys are swapped out?

The 5.4 swaps the crank and the waterpump, with new resized ones.

Lars

Dixie Design

Mon, March 16th, 2009 10:41 AM

Quote:

Originally Posted by 88Racing (Post 5730)

Really, 4.6 still takes the stock size belt.

Just for curiousity what pulleys are swapped out?

The 5.4 swaps the crank and the waterpump, with new resized ones.

Lars

Summit's kit for the 4.6L 04 New body style and up replaces the same, crank & waterpump. The Crank was definitely bigger than stock. Their kit for the 04 Heritage and older was a 3 pulley set, with a new alternator pulley being the 3rd.

I was surprised it took the stock length belt, I bought the 99" belt first and it would NOT fit. Was half expecting the stock length to slip at WOT shifting like my old belt/pullies did, but it didn't.

way2qk4u2c

Mon, March 16th, 2009 11:05 AM

Does anyone know what part number is for the 04-08 5.4l UDP on the summit site?

Dixie Design

Mon, March 16th, 2009 11:11 AM

Quote:

Originally Posted by way2qk4u2c (Post 5735)

Does anyone know what part number is for the 04-08 5.4l UDP on the summit site?

I don't think Summit has a kit for the 5.4's

88Racing

Mon, March 16th, 2009 11:43 AM

Quote:

Originally Posted by Dixie Design (Post 5734)

I was surprised it took the stock length belt, I bought the 99" belt first and it would NOT fit. Was half expecting the stock length to slip at WOT shifting like my old belt/pullies did, but it didn't.

Yes Neal that suprises me also. Just another ? Where is the belt tensioner indicating mark? I usually mark it if I am working on one that doesn't have them.

Lars

RZDANO

Mon, March 16th, 2009 12:59 PM

[QUOTE=Dixie Design;5734]Summit's kit for the 4.6L 04 New body style and up replaces the same, crank & waterpump. The Crank was definitely bigger than stock. Their kit for the 04 Heritage and older was a 3 pulley set, with a new alternator pulley being the 3rd.

Are You sure the crank pulley was larger???? That would be an overdrive.:confused:

Dixie Design

Mon, March 16th, 2009 01:15 PM

Quote:

Originally Posted by RZDANO (Post 5744)

Are You sure the crank pulley was larger???? That would be an overdrive.:confused:

:hehe: my bad, yeah it's smaller. Forums are "against the rules" at my 8-4, was in a hurry. Crank's smaller :)

Jackpine

Mon, March 16th, 2009 01:24 PM

I was going to ask the same question, when I saw "larger" - didn't make a lot of sense, did it? So, if the alternator pulley isn't swapped, I wonder if the crank is even smaller to give the same effect?

- Jack

Dixie Design

Mon, March 16th, 2009 01:40 PM

Quote:

Originally Posted by JackandJanet (Post 5750)

I wish I would have measured before I put them on, when I pull my fan out to install Troyer's efans, I'll snap some extra photos and take some diameters for y'all.

I'll post the photos I took after the install tonight.

Dixie Design

Mon, March 16th, 2009 06:16 PM

As promised, here are a couple pics I took after the install. I'll upload some more when I get that big ol fan out of the way :)

The waterpump pulley is the one closer, the crank pulley is the pretty shiney one.

http://i14.photobucket.com/albums/a3...0/CIMG1670.jpg

http://i14.photobucket.com/albums/a3...0/CIMG1671.jpg

And no I haven't put the Gatorback Belt on yet, just got the replacement this weekend after Summit sent me the wrong one for the 3rd time.

All times are GMT -4. The time now is 03:00 AM.

Page 6 of 8

« First

Show 100 post(s) from this thread on one page