Any benefit to changing upper blower pulley??
Thread Starter
|
Senior Member
Joined: Dec 2004
Posts: 162
Likes: 0
From: OKC
Any benefit to changing upper blower pulley??
Are there any benefits to changing the upper pulley if I am going to run either a 4# or 5# lower crank pulley?? And if so, what size upper should I run with a 4# or 5# lower??
Senior Member
Joined: Jun 2004
Posts: 856
Likes: 0
From: Oregon
yeah, you get more boost 
Haha no but seriously if you're going to change the upper, you're probably going to want to add an aux. idler setup to reduce belt slippage. As for what size, it depends on your other mods/tune/what you want out of it.
Haha no but seriously if you're going to change the upper, you're probably going to want to add an aux. idler setup to reduce belt slippage. As for what size, it depends on your other mods/tune/what you want out of it.
Senior Member
Joined: Jun 2001
Posts: 1,210
Likes: 6
From: Cave Creek, AZ
Originally Posted by meansvt00
i would just pick the lower for the boost you want anf forget about the upper. if you shrink the upper you have to worry about belt slippage
Senior Member
Joined: Mar 2002
Posts: 11,153
Likes: 0
From: Selden NY
ok I'll be the one to disagree with everyone 
On my first Eaton, the Wasp, the Mag, The Wasp Gen II, and the Mag again,
I ALWAYS prefered and ran an upper and lower combo
A smaller upper along with a larger lower WILL result in FASTER boost
Another words 4+2 may be the same as a 6 lower (or so some think)
but you will always boost up faster with the 4+2 compared to the 6 only.
Many have argued this over the years, but I've seen and experienced it
first hand on the many Diff Superchargers that have been on my L.
You truly can not believe how IMMEDIATE you boost up with a smaller upper.
Call it less rotational mass, a lighter pulley, less drag, WHATEVER
But it is a fact.
AMOF I'm having a custom pulley made for the Mag as we speak and I'm hoping they can go smaller than 2.7, I'm also hoping to have them make me
a larger lower ring than the 9-7/8" I currently run.
BOOST IS OUR FRIEND, and the faster I can use it, the better.....
On my first Eaton, the Wasp, the Mag, The Wasp Gen II, and the Mag again,
I ALWAYS prefered and ran an upper and lower combo
A smaller upper along with a larger lower WILL result in FASTER boost
Another words 4+2 may be the same as a 6 lower (or so some think)
but you will always boost up faster with the 4+2 compared to the 6 only.
Many have argued this over the years, but I've seen and experienced it
first hand on the many Diff Superchargers that have been on my L.
You truly can not believe how IMMEDIATE you boost up with a smaller upper.
Call it less rotational mass, a lighter pulley, less drag, WHATEVER
But it is a fact.
AMOF I'm having a custom pulley made for the Mag as we speak and I'm hoping they can go smaller than 2.7, I'm also hoping to have them make me
a larger lower ring than the 9-7/8" I currently run.
BOOST IS OUR FRIEND, and the faster I can use it, the better.....
Senior Member
Joined: Oct 2002
Posts: 2,840
Likes: 0
From: Bridgeport, MI
Originally Posted by Rob_02Lightning
ok I'll be the one to disagree with everyone
On my first Eaton, the Wasp, the Mag, The Wasp Gen II, and the Mag again,
I ALWAYS prefered and ran an upper and lower combo
A smaller upper along with a larger lower WILL result in FASTER boost
Another words 4+2 may be the same as a 6 lower (or so some think)
but you will always boost up faster with the 4+2 compared to the 6 only.
Many have argued this over the years, but I've seen and experienced it
first hand on the many Diff Superchargers that have been on my L.
You truly can not believe how IMMEDIATE you boost up with a smaller upper.
Call it less rotational mass, a lighter pulley, less drag, WHATEVER
But it is a fact.
AMOF I'm having a custom pulley made for the Mag as we speak and I'm hoping they can go smaller than 2.7, I'm also hoping to have them make me
a larger lower ring than the 9-7/8" I currently run.
BOOST IS OUR FRIEND, and the faster I can use it, the better.....
On my first Eaton, the Wasp, the Mag, The Wasp Gen II, and the Mag again,
I ALWAYS prefered and ran an upper and lower combo
A smaller upper along with a larger lower WILL result in FASTER boost
Another words 4+2 may be the same as a 6 lower (or so some think)
but you will always boost up faster with the 4+2 compared to the 6 only.
Many have argued this over the years, but I've seen and experienced it
first hand on the many Diff Superchargers that have been on my L.
You truly can not believe how IMMEDIATE you boost up with a smaller upper.
Call it less rotational mass, a lighter pulley, less drag, WHATEVER
But it is a fact.
AMOF I'm having a custom pulley made for the Mag as we speak and I'm hoping they can go smaller than 2.7, I'm also hoping to have them make me
a larger lower ring than the 9-7/8" I currently run.
BOOST IS OUR FRIEND, and the faster I can use it, the better.....
God Bless,
Suavy
Trending Topics
Senior Member
Joined: Mar 2002
Posts: 11,153
Likes: 0
From: Selden NY
Thanks Suavy, thats prob what I have also, I just always called it a 2.7
I'm having a NON SLIP pulley made and hope to be able to go smaller still...
For what ever reason the Eaton doesnt slip with a 2.7 upper, but the Mag does A LOT.
I'm having a NON SLIP pulley made and hope to be able to go smaller still...
For what ever reason the Eaton doesnt slip with a 2.7 upper, but the Mag does A LOT.
Senior Member
Joined: Mar 2002
Posts: 11,153
Likes: 0
From: Selden NY
Jim
I am just waiting on a few measurements, and then it'll be made
(prob in the next few weeks) I'm trying to go smaller than 2.7 (if possible)
I'll find out a $ for you, I got to assume after the proto type, (mine)
the cost will be cheaper.
I want it in Billet, now I have too much Black under the hood
but I have a few goodies to put on over the winter that'll fix that (or sooner).....
I am just waiting on a few measurements, and then it'll be made
(prob in the next few weeks) I'm trying to go smaller than 2.7 (if possible)
I'll find out a $ for you, I got to assume after the proto type, (mine)
the cost will be cheaper.
I want it in Billet, now I have too much Black under the hood
but I have a few goodies to put on over the winter that'll fix that (or sooner).....
Senior Member
Joined: Jul 2005
Posts: 1,388
Likes: 0
From: hatboro-pa
Originally Posted by Rob_02Lightning
ok I'll be the one to disagree with everyone
On my first Eaton, the Wasp, the Mag, The Wasp Gen II, and the Mag again,
I ALWAYS prefered and ran an upper and lower combo
A smaller upper along with a larger lower WILL result in FASTER boost
Another words 4+2 may be the same as a 6 lower (or so some think)
but you will always boost up faster with the 4+2 compared to the 6 only.
Many have argued this over the years, but I've seen and experienced it
first hand on the many Diff Superchargers that have been on my L.
You truly can not believe how IMMEDIATE you boost up with a smaller upper.
Call it less rotational mass, a lighter pulley, less drag, WHATEVER
But it is a fact.
AMOF I'm having a custom pulley made for the Mag as we speak and I'm hoping they can go smaller than 2.7, I'm also hoping to have them make me
a larger lower ring than the 9-7/8" I currently run.
BOOST IS OUR FRIEND, and the faster I can use it, the better.....
On my first Eaton, the Wasp, the Mag, The Wasp Gen II, and the Mag again,
I ALWAYS prefered and ran an upper and lower combo
A smaller upper along with a larger lower WILL result in FASTER boost
Another words 4+2 may be the same as a 6 lower (or so some think)
but you will always boost up faster with the 4+2 compared to the 6 only.
Many have argued this over the years, but I've seen and experienced it
first hand on the many Diff Superchargers that have been on my L.
You truly can not believe how IMMEDIATE you boost up with a smaller upper.
Call it less rotational mass, a lighter pulley, less drag, WHATEVER
But it is a fact.
AMOF I'm having a custom pulley made for the Mag as we speak and I'm hoping they can go smaller than 2.7, I'm also hoping to have them make me
a larger lower ring than the 9-7/8" I currently run.
BOOST IS OUR FRIEND, and the faster I can use it, the better.....
Thanks.