Pulley Upgrade, the details

[Fast Freddy]

This is an excellent question that never really got answered. Anyone :confused

with the stock blower you will create way to much heat before you run into a overrev situation. anything over 20 psi on the stock blower is way to many revs. and imo anything over 16 psi on the stock blower is to much heat. if you want more power than 16 psi delivers get a whipple and get more power an less heat.

 

[Jason Watt]

So One More Time Pleaseeeeeeeee.....

I'm just about to begin the pulley-swab project. I have a 2.7" item from Dallas Mustang, and I'm not quite sure how to go about the task..

1. Remove the blower put it on a table. (then drain the oil??)

2. Remove the the snaut

3. Pull the original pulley (with a puller??)

4. When mounting the new pulley on I suppose it needs to be heated?? Does it then slide right on, or does it need to be pressed??

Any thing else I need to know before I'ts "tool time"??

Thanks :thumbsup

 

[427Aggie]

No heating...its pressed on.

Call Rich (GT GUY) here in the states and have him go over it with you..he can walk you though it.

Matt

 

[B O N Y]

Didn't Shadowman post step by step instructions??? Do a search or PM him.

 

[FLASH]

Blower Speed

Black Ice,
Originally Posted by californiacuda
The supercharger on the GT is made by Lysholm of Sweden and repackaged by Eaton. On the Lysholm website, their 2.3L blower is listed with a max rpm of 13,500.
I'm not sure if my math is correct but if your numbers are correct both pulleys exceed the max rpm.

7.1/3.25=2.18x6500rpm engine speed = 14,200 blower rpm.
7.1/2.75=2.58x6500rpm engine speed = 16,782 blower rpm.
Is this correct?
Flash:confused

 

[BlackICE]

Black Ice,
Originally Posted by californiacuda
The supercharger on the GT is made by Lysholm of Sweden and repackaged by Eaton. On the Lysholm website, their 2.3L blower is listed with a max rpm of 13,500.
I'm not sure if my math is correct but if your numbers are correct both pulleys exceed the max rpm.

7.1/3.25=2.18x6500rpm engine speed = 14,200 blower rpm.
7.1/2.75=2.58x6500rpm engine speed = 16,782 blower rpm.
Is this correct?
Flash:confused

I came to the same conclusions. Note the GT blower is OEM and the specs could be a little different, but I believe Ford is alread running it very near max rpm. Since many are running the 2.7 and 2.8 pullies and the cars are still running without any problems, I would say that the spec is conservative. However the lifespan of the blower of course will be less. How much less, who knows.

 

[cobrar1339]

Humm didn't know that about the RPM. Good thread.

I did not read every post here, but in scanning did not see the anwser why the cover is removed on a pulley swap. From my info you only need to do this when swapping to the KB snout as it uses a spacer on the PS idler to line everything up just right. It's not a big deal and does not need to be done again after the KB snout is on. From there you can just pull the KB snout from the blower. Not oil leaks out with the KB snout as I recall. You DO NOT have to remove the glass, just the compartment door behind the amp. There is a pic in my gallery.