i have a 99 gtp with 100,000 miles. i just put a rebuilt supercharger on but it will give no boost when i give it the gas on take off. at higher rpms i can hear the supercharger running but the gage only shows about half boost. i would appreciate any help or suggestions on what might be or is wrong.

i have a 99 gtp with 100,000 miles. i just put a rebuilt supercharger on but it will give no boost when i give it the gas on take off. at higher rpms i can hear the supercharger running but the gage only shows about half boost. i would appreciate any help or suggestions on what might be or is wrong.

Are you sure the boost bypass vacuum lines are on correctly. Plus are you using an undersize SC pulley or the stock 3.8?

Are you sure the boost bypass vacuum lines are on correctly. Plus are you using an undersize SC pulley or the stock 3.8?
ill check them out. thanks!

ill check them out. thanks!

You're welcome. Here's a vacuum diagram for an L67 just in case.


http://i5.photobucket.com/albums/y186/lizzywiz/vacuum.jpg

What do you know, you can draw



You're welcome. Here's a vacuum diagram for an L67 just in case.


http://i5.photobucket.com/albums/y186/lizzywiz/vacuum.jpg

What do you know, you can draw

Not really Jim...lol. Just know how to copy, cut and paste.