Forced Induction Superchargers | Turbochargers | Intercoolers

pressure drop

Thread Tools
 
Search this Thread
 
Old May 8, 2008 | 08:12 PM
  #1  
Boosted 99 TA's Avatar
Thread Starter
TECH Apprentice
iTrader: (1)
 
Joined: Mar 2006
Posts: 336
Likes: 0
From: Burton, MI
Default pressure drop

hey guys i just did a sts install on my car i have a 5.5lb spring inthe wastegate right now and my car is only make 3psi do you think its possible for it to drop that much in pressure from goin through all the plumbing and intercooler or do you think it might be something else? I was getting my car tuned and they called me up and told me that and my clutch is starting to go out, so i only put down 400rwhp. They suggested to get like an 8lb spring so i can run right around 5 or 6 psi.
Reply
Old May 8, 2008 | 08:58 PM
  #2  
trans2000am's Avatar
TECH Fanatic
iTrader: (49)
 
Joined: Feb 2006
Posts: 1,518
Likes: 0
From: detroit
Default

yes you will lose psi going through the intercooler i due believe 1 pound if not 2 just up the spring in the gate or run a boost controller
Reply
Old May 8, 2008 | 09:00 PM
  #3  
Boosted 99 TA's Avatar
Thread Starter
TECH Apprentice
iTrader: (1)
 
Joined: Mar 2006
Posts: 336
Likes: 0
From: Burton, MI
Default

thanks for the help.
Reply
Old May 8, 2008 | 10:10 PM
  #4  
Websy21's Avatar
TECH Addict
iTrader: (34)
 
Joined: Jun 2007
Posts: 2,346
Likes: 1
From: Alberta, Canada
Default

It also makes a differnece where you reference it from. Where are you referencing if from at the moment? Before or after the intercooler? Its best to have a tapped fitting somewhere aftere the intercooler, the most common place people use is the compressor housing fitting. Which isn't a bad place but will generally see less boost b/c its the first place the boost is introduced thus going though numerous bends but mostly the intercooler inteself.

This could be aided to your advantage though. For example, I have an inner and outer spring of 7psi each for my wastegate. I am going to run a base setting on my stockblock until I get my 370 in. I will be refererncing from the compressor and running off the single 7psi wastegate spring. I am thinking this will net me anywhere from 5-6 which is jsut where I want it. I also have a boost controller that will be installed at a later date with the engine and most likely switching my reference source to after the intercooler. Hope this helps ya and wortht a try instead of getting a new spring depending where your reference is.
Reply
Old May 15, 2008 | 11:25 PM
  #5  
Boosted 99 TA's Avatar
Thread Starter
TECH Apprentice
iTrader: (1)
 
Joined: Mar 2006
Posts: 336
Likes: 0
From: Burton, MI
Default

its referenced at the compressor i know i should do it at the manifold but i put a different spring in there and it still not putting out more boost it went up to 4psi then goes back down to 3. And i dont have any exhaust leaks, what do you think?
Reply
Old May 26, 2008 | 10:53 AM
  #6  
lt170chevelle's Avatar
TECH Fanatic
iTrader: (2)
 
Joined: Jul 2006
Posts: 1,153
Likes: 1
From: BS,TX
Default

sounds like a intake piping leak somewhere...do you have and pvc openings that are not rerouted to compensate for boost? on my lt1 had to cap one off the tb
Reply




All times are GMT -5. The time now is 02:52 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE