Low or No boost ????? - 95 Riviera - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Buick When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 05-30-2006, 07:32 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: May 2006
Location: Claremore , Oklahoma
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Hafrod is on a distinguished road
Default Low or No boost ????? - 95 Riviera

I just installed a boost gauge(VDO) in my Rivi and it showed about 1 to1& 1/2 Lbs of boost.So I took the one out of my Grand national ,it is an Autometer and it reads Vac. and boost. It reads the same amount of boost as the VDO gauge.Its reading 17 to 18 lbs of Vac. I have it Teed in at the throttle body where it goes to vac modulator on trans. Whats up with that?????
Hafrod is offline   Reply With Quote
Old 05-30-2006, 07:35 PM   #2
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: May 2006
Location: Claremore , Oklahoma
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Hafrod is on a distinguished road
Default

I might add also that you CAN hear the supercharger when you stomp it BUT my wifes new 300C SPANKED MY A%#! My car does NOT feel strong at all.
Hafrod is offline   Reply With Quote
Old 06-01-2006, 12:02 AM   #3
Senior Member
Posts like a Supercharger
 
Join Date: Mar 2006
Location: Chicago
Posts: 193
Thanks: 0
Thanked 0 Times in 0 Posts
BlownBuick is on a distinguished road
Default

Your problem is that you have it hooked up to the vacuum modulaor vacuum line. That'* right after the throttle body and will never see boost of any kind, only a maximum of atmospheric pressure.

You need to hook the gauge up to either the MAP sensor line or the line that goes to the Boost Bypass Valve Actuator (round black thing near throttle body). It has 2 vacuum lines on it, and one will be the correct one, but I don't have a Series I so I couldn't tell you which one it is. I'm sure someone'll know.
BlownBuick is offline   Reply With Quote
Old 06-01-2006, 12:06 AM   #4
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Your Rivi won't have a MAP sensor. That means you have an empty vacuum port on the tree by the BCA. If you have no empty port, get a vacuum tree from an SSEi, then you will. You can use that port for your gauge.
J Wikoff is offline   Reply With Quote
Old 06-01-2006, 12:19 AM   #5
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

Wait, you won't have any empty ports. But what you can do is snag the FPR vacuum line from an SSEi. It will have an extra port on it that the MAP sensor usually uses.
J Wikoff is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Low boost, no boost problem immusicman Forced Induction 12 09-27-2009 01:05 AM
Boost Control Solenoid Maintenance and Boost Control Actuator Test for low Boost* Toddster Trouble shooting + Test Procedures 0 03-21-2009 07:24 PM
More boost via boost controller... DanCulkin Performance, Brainstorming & Tuning 14 07-02-2007 12:02 PM
low boost, low power, SES.....what happened? mikey Forced Induction 14 11-08-2005 10:58 AM
low stock Boost vs high stock boost hvactech Performance, Brainstorming & Tuning 12 05-10-2005 11:14 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 06:41 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.