Average boost? **UPDATE** - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Forced Induction All questions and problems regarding Superchargers, Turbos, NOS, ZEX, intercoolers, water injection, etc.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-13-2005, 01:24 AM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2005
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Smoof is on a distinguished road
Default Average boost? **UPDATE**

Hi there, I'm new here. I have a '95 T-Bird SC, but, my girlfriend has a '98 Bonneville SSEi.
Now, being the performance type that I am, my g/f and I were riding around in her Bonneville today. I asked her to floor it so I could see how much boost she was making (my car stock makes about 8lbs), she did and her boost gauge hit about 3lbs of boost. AFter we climbed a little higher on the speedo, the gauge started to bounce. It hit about 5, then jumped to 8, and bounced back and fourth until she took her foot off (bouncing fast, not smooth).
Anyway, I'm curious if 3lbs is average for her car to make. I'm figuring, since she wants her car to be faster, for her birthday, I might get her a 5% or 10% OD pulley.

Anyway, so is 3lbs normal, or is there anything I can do to fix that up a bit?
Smoof is offline   Reply With Quote
Old 04-13-2005, 01:26 AM   #2
Junior Member
 
Join Date: Mar 2004
Location: Purgatory
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
harofreak00 is on a distinguished road
Default

3psi is not normal... should be 7-8 stock...

gauge might be acting up...

get her a 3.4" SC pulley

should be in the 9-10 range under WOT then
harofreak00 is offline   Reply With Quote
Old 04-13-2005, 01:31 AM   #3
Senior Member
True Car Nut
 
Join Date: Sep 2004
Location: Farmington, Minnesota =MWBF '05 SURVIVOR= =CEBF '06 SURVIVOR= =August '06 COTM=
Posts: 9,130
Thanks: 0
Thanked 0 Times in 0 Posts
LakevilleSSEi is on a distinguished road
Default

Quote:
Originally Posted by harofreak00
3psi is not normal... should be 7-8 stock...

gauge might be acting up...

get her a 3.4" SC pulley

should be in the 9-10 range under WOT then
Make sure that you AT LEAST open up the intake and/or exhaust system to flow better before doing the pulley. Also colder plugs and a colder thermostat, because these 3800'* really run HOT. Spinning that Supercherger faster will generate a lot more and you can get KR (Knock Retard).
LakevilleSSEi is offline   Reply With Quote
Old 04-13-2005, 01:55 AM   #4
Senior Member
Posts like a Turbo
 
Join Date: Mar 2005
Location: South Jersey
Posts: 498
Thanks: 0
Thanked 0 Times in 0 Posts
xX1SSEI1Xx is on a distinguished road
Default

if it hit WOT {which i did a lot today.....was late for work } the gauge shows 10 psi without any hesitation....and i'm stock
xX1SSEI1Xx is offline   Reply With Quote
Old 04-13-2005, 02:00 AM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2005
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Smoof is on a distinguished road
Default

Now where would I pick-up a 3.4SC pulley? Perhaps getting her to stock would improve the performance enough for her. I'm gonna go play with her car a bit tomorrow and see if maybe I'm wrong, reading it from the passenger side, you know?

BTW, any ideas on what to do for the gauge? I'm not exactly a well versed mechanic, and what I know is Fords. I know absolutely nothing about GM.
Smoof is offline   Reply With Quote
Old 04-13-2005, 02:08 AM   #6
Senior Member
True Car Nut
 
Join Date: Sep 2004
Location: Farmington, Minnesota =MWBF '05 SURVIVOR= =CEBF '06 SURVIVOR= =August '06 COTM=
Posts: 9,130
Thanks: 0
Thanked 0 Times in 0 Posts
LakevilleSSEi is on a distinguished road
Default

pulleyboys.com sells everything that you will need to swap out the pulley on the car. As for the gauge....Mine tweaks out also....But tends to settle down after a while.....Good place to start would be to check for vaccum line leaks around the Supercharger and the MAP sensor. Get a Chiltons manual for the car.
LakevilleSSEi is offline   Reply With Quote
Old 04-13-2005, 02:23 AM   #7
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2005
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Smoof is on a distinguished road
Default

Thanks for the info, where and what is the MAP sensor? I've never heard of that before.
Smoof is offline   Reply With Quote
Old 04-13-2005, 04:39 AM   #8
PopaDopaDo
True Car Nut
 
popatim's Avatar
 
Join Date: Jan 2005
Location: NY
Posts: 4,957
Thanks: 0
Thanked 0 Times in 0 Posts
popatim is on a distinguished road
Default

Manifold Absolute pressure. fords have them too...maybe you're a carb guy
popatim is offline   Reply With Quote
Old 04-13-2005, 05:58 AM   #9
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Apr 2005
Posts: 31
Thanks: 0
Thanked 0 Times in 0 Posts
Smoof is on a distinguished road
Default

Quote:
Originally Posted by popatim
Manifold Absolute pressure. fords have them too...maybe you're a carb guy
Nope, just a newbie! Still learning!
Smoof is offline   Reply With Quote
Old 04-13-2005, 07:34 AM   #10
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

On the gauges, is it only the boost? Or does oil press and temp seem off from where you think it should be. And mine pegs after a moment or two.
Tstat is a 195

I found my gauges to be REALLY far off. No matter what my boost gauge says....I can feel it. Here'* my dash right now

They are easy to take apart and in techinfo there'* good procedures to clean the contacts etc. I've got an extra one...a 92-93 and I am going to try and fix it up to get rid of it. Far as I know it works 100% right now.

I've heard the superchargers do wear, or maybe it'* a boost soloniod.
BillBoost37 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Boost Control Solenoid Maintenance and Boost Control Actuator Test for low Boost* Toddster Trouble shooting + Test Procedures 0 03-21-2009 07:24 PM
Average Engine Life? CrAzY dUdE fOr U 1992-1999 19 12-21-2004 08:33 PM
What is Average? 97NAbonneville1 Lounge 14 02-19-2004 09:42 AM
Not your average San Francisco treat Burgundy_Boat Lounge 4 02-17-2004 01:23 AM
Average MPG? Glasuan Performance, Brainstorming & Tuning 53 02-11-2004 10:15 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 05:48 PM.


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.