WBS FAQ: What size pulley can I run

[Mook]

If you have you have a supercharged W Body you've almost certainly been tempted to swap your stock pulley for a smaller unit. After all, this is the easiest way to make power on the supercharged cars. Unfortunately it's also the easiest way to blow your engine if proper pre-cautions are not taken.

This brief article will discuss what it takes to run each specific pulley. This article should be used as a reference only. You should always scan for knock after switching to a smaller supercharger pulley. Click here for more information on knock.

Your vehicle is equipped with a 3.8" supercharger pulley stock. The one exception to this rule is a limited amount of SLP branded Grand Prix GTXs and Regal GSXs which were equipped with a 3.5 pulley as an option. Your vehicle will make about 6lbs of boost with the stock pulley depending on weather conditions.

This guide makes the following assumptions:

• 
  [*]You're driving a 1997 - 2007 Vehicle with the Series II/ III Supercharged Engine
  [*]You're not running a converted L36/ Topswap
  [*]You're running a Gen III Eaton M90 Blower (add .10") to each listed size if you're running a 2004+ Grand Prix

To continue reading, please use the following link
http://www.wbodystore.com/grandprix....html?osCsid=119c7b57a0983dfe91f486146c07f483

Click to read more...

 

[02BlueGT]

• 
  [*]You're not running a converted L36/ Topswap
  [/LIST

• 
  
  There's never any write ups for me ........
  
  
  But SCAN SCAN SCAN, thats my advice

 

[Fish]

Need to change that Gen III to Gen V.

 

[02BlueGT]

Need to change that Gen III to Gen V.

I had that conversation with James and DoubleD a few weeks ago

 

[Turbocharged400sbc]

I had that conversation with James and DoubleD a few weeks ago

hey edsel did you loosen and re tq your knock sensors for the lower Tq of the L67 specs yet?

 

[02BlueGT]

hey edsel did you loosen and re tq your knock sensors for the lower Tq of the L67 specs yet?

its -x* outside.....so no, I am getting copper 104's and 103's though to see if my plugs are the problem.... And if it makes the sensors more sensitive then I might just leave em tight, my pistons are a little weaker, so my engine should be paying better attention to knock

 

[MuffHugger]

I hear you can run a 3.0 on a stock motor and run just fine.

 

[FuglyGTP]

I hear you can run a 3.0 on a stock motor and run just fine.

I'll give you $50 if you do it

 

[RebelGTP]

I'll give you $50 if you do it

he can run the pulley currently, but his car isn't going anywhere...

that was a low blow!

 

[gtp02]

my computer is acting up, can i go any smaller with a pulley without changing anything?

 

[10sec]

You can do whatever you want, but it's not suggested. Exhaust mods are very important, the stock dp is junk.

 

[gtp02]

haha damn i just sent you a pm

 

[cammareri1]

Anyone have a pulley puller I can pay them to use?