Forced Induction Superchargers | Turbochargers | Intercoolers

BOV and wastegate

Thread Tools
 
Search this Thread
 
Old Jun 3, 2012 | 09:35 PM
  #1  
lbm13186's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Feb 2011
Posts: 405
Likes: 0
From: Stamford, ct
Default BOV and wastegate

Need some help guys

What is the different in BOV and Wastegates??

At what point is it necessary or good to have a BOV or Wastegate?
is it a hp thing or is it a boost amount? or is it just better to have one than not having one?
Reply
Old Jun 4, 2012 | 07:27 AM
  #2  
oange ss's Avatar
TECH Junkie
20 Year Member
iTrader: (50)
 
Joined: Jan 2005
Posts: 3,241
Likes: 6
From: Texas
Default

BOV unloads charge side during throttle transients to prevent damage to the compressor, wastegate controls boost by limiting exhaust flow to the turbine.
Reply
Old Jun 4, 2012 | 09:06 AM
  #3  
HRHohio's Avatar
TECH Resident
 
Joined: Nov 2011
Posts: 916
Likes: 5
From: Las Vegas, NV
Default

You need the Wastegate, and SHOULD have the BOV for any turbo application. Recommend you get them both.

Like Oange SS said...
Wastegate limits the amount of boost your exhaust can make through the turbo - saves you from overboosting your car and blowing up engine by forcing too much boost into system.

BOV gives the boost a place to go when the throttle body plate closes (letting off accelerator) so that it doesn't go backwards through the turbo and stall it (saves wear and tear on the turbo unit). The momentum of the turbo spinning will continue to make boost even after the throttle is let off. BOV allows it to continue to spin, but gives the compressed air an avenue of escape.

Get em both.
Reply
Old Jun 4, 2012 | 10:33 AM
  #4  
fastsspr's Avatar
TECH Fanatic
20 Year Member
iTrader: (49)
 
Joined: Oct 2003
Posts: 1,313
Likes: 10
From: Las Vegas NV
Default

Originally Posted by HRHohio
You need the Wastegate, and SHOULD have the BOV for any turbo application. Recommend you get them both.

Like Oange SS said...
Wastegate limits the amount of boost your exhaust can make through the turbo - saves you from overboosting your car and blowing up engine by forcing too much boost into system.

BOV gives the boost a place to go when the throttle body plate closes (letting off accelerator) so that it doesn't go backwards through the turbo and stall it (saves wear and tear on the turbo unit). The momentum of the turbo spinning will continue to make boost even after the throttle is let off. BOV allows it to continue to spin, but gives the compressed air an avenue of escape.

Get em both.
Is no better explanation !
Reply
Old Jun 4, 2012 | 10:47 PM
  #5  
lbm13186's Avatar
Thread Starter
TECH Regular
iTrader: (4)
 
Joined: Feb 2011
Posts: 405
Likes: 0
From: Stamford, ct
Default

Im going with a Procharger system so i would assume all i need is a BOV correct??
Reply
Old Jun 5, 2012 | 12:11 AM
  #6  
HRHohio's Avatar
TECH Resident
 
Joined: Nov 2011
Posts: 916
Likes: 5
From: Las Vegas, NV
Default

Originally Posted by lbm13186
Im going with a Procharger system so i would assume all i need is a BOV correct??
I'm going to say yes, because superchargers run off the crank/pully instead of the exhaust (i.e. no waste exhaust to wastegate). I'm a turbo guy so superchargers are a bit out of my comfort zone to talk about, however similar the principle is.

Here's a pic of a BOV (round red thing in the bottom left corner) coming off the pipe. (Procharger setup on a Ford Mustang).

http://www.elitestangs.com/forum/sho...up-sbf-mustang
Reply
Old Jun 13, 2012 | 09:56 PM
  #7  
5.0 LsX's Avatar
Launching!
iTrader: (7)
 
Joined: May 2010
Posts: 250
Likes: 0
From: 510
Default

your probably going to need a bypass valve depending on the application and setup
Reply




All times are GMT -5. The time now is 12:48 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
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-5
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-6
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-7
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-8
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-9
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