C5 Forced Induction/Nitrous C5 Corvette Turbochargers, Superchargers, Centrifugal, Twin Screw & Roots Blowers, Twin Turbo Kits, Intercoolers, Wet & Dry Nitrous Injection, Meth
Sponsored by:
Sponsored by:

Bov adjusted wrong ???

Thread Tools
 
Search this Thread
 
Old May 29, 2012 | 03:30 PM
  #1  
Zeus-of-Boost's Avatar
Zeus-of-Boost
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Nov 2008
Posts: 998
Likes: 0
Default Bov adjusted wrong ???

Could a non-adjusted bov keep my car from not running right. ? I had the tuner put a base tune on my PCM for my new 408 d1sc build but now it will not idel for long and when I give it has it dies.

The reason I think the vortech mondo bov may be the culprit is bc , when the bov was off the car, I installed a hose onto to bov nipple and sucked on it with my mouth to see how much vacuum it woul take to open it. It surprisingly took a good bit of sucking lol to get the bov to start opening. It just doesn't seem like the motor creates enough vacuum to open my bov.

Just brain storming and figured ou guys could shed some light on the subject.
Thoughs????
Reply
Old May 29, 2012 | 03:36 PM
  #2  
HP_Addict's Avatar
HP_Addict
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Apr 2003
Posts: 2,285
Likes: 16
From: Nashville TN
Default

you can adjust that with the screw on top. I don't remember if screwing it in lowers or raises the amount of vac needed. Did you buy it new? Usually they do not have to be adjusted.
Reply
Old May 29, 2012 | 03:58 PM
  #3  
Zeus-of-Boost's Avatar
Zeus-of-Boost
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Nov 2008
Posts: 998
Likes: 0
Default

Originally Posted by HP_Addict
you can adjust that with the screw on top. I don't remember if screwing it in lowers or raises the amount of vac needed. Did you buy it new? Usually they do not have to be adjusted.
yes, i bought it new and a&a said that it should be preset from the factory. but if the "factory presets" worked for every set up, then why make them adjustable at all.

i might remove my "plastic panel"( bov is infront of pass side wheel well) when i get home and crank the car up and see if any air is coming out of the bov. If not i will adjust it and see what happens
Reply
Old May 29, 2012 | 05:32 PM
  #4  
Milan's Avatar
Milan
Safety Car
15 Year Member
All Eyes On Me
Photogenic
Liked
 
Joined: Jan 2008
Posts: 4,797
Likes: 52
From: Boise
Default

Doesn't matter if it's getting pulled open or not, you are having an issue somewhere else. I still suspect your tuner. Still thinks it's injector data or airflow tables.

What injectors, throttle body/intake manifold are you using? He knows you have a 408 with a cam right?
Reply
Old May 29, 2012 | 06:04 PM
  #5  
Zeus-of-Boost's Avatar
Zeus-of-Boost
Thread Starter
Burning Brakes
15 Year Member
 
Joined: Nov 2008
Posts: 998
Likes: 0
Default

Millan, I'm using deka 80 lbs injectors, ls3 intake, And ls2 tb. I gave him all the motor specs. Just got off the phone with the tuner and he is going to come out withing the next couple days and scan it. I think your right tho.
Reply
Old May 29, 2012 | 06:13 PM
  #6  
MVP'S ZO6's Avatar
MVP'S ZO6
ISIS SUCKS FAT CHOAD
Supporting Lifetime Gold
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2008
Posts: 8,124
Likes: 53
From: Earth, United States
Default

Data log and post tune and data logs.
Reply
Old May 29, 2012 | 06:40 PM
  #7  
ajrothm's Avatar
ajrothm
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: May 2006
Posts: 9,993
Likes: 1,136
From: League City Tx
Default

The BOV doesn't have to be open for the car to idle. Turbo cars never have BOVs open when idling. Unless the vacuum hose is off of the BOV and is open to atmosphere..(vacuum leak). Sounds like you have a massive vacuum leak somewhere or your tune is jacked.
Reply
Old May 29, 2012 | 09:53 PM
  #8  
Arun@CCP's Avatar
0Arun@CCP
Former Vendor
 
Joined: Jul 2010
Posts: 4,504
Likes: 4
From: Waterloo Ontario
Default

The Mondo should not need any adjustments from the way they come from Vortech.

It's set at the lightest setting-screw all the way out, so it opens at 4-5inches of vacuum.

So at idle-it should be fully open.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-1

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-2

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-3

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-4

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-5

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-6

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-7

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-8

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-9

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
Old May 29, 2012 | 10:17 PM
  #9  
robert miller's Avatar
robert miller
Team Owner
15 Year Member
Active Streak: 30 Days
Active Streak: 60 Days
Photoriffic
 
Joined: Jan 2007
Posts: 29,063
Likes: 1,839
From: cookeville tennessee
Default

Originally Posted by Milan
Doesn't matter if it's getting pulled open or not, you are having an issue somewhere else. I still suspect your tuner. Still thinks it's injector data or airflow tables.

What injectors, throttle body/intake manifold are you using? He knows you have a 408 with a cam right?
I sounds like in the VE table.on low rpm settings you are lucky it is not killing the motor and getting code of low engine power and having to reset it.Robert
Reply
Old May 31, 2012 | 10:09 PM
  #10  
4SFED Z's Avatar
4SFED Z
Melting Slicks
 
Joined: Jun 2007
Posts: 2,704
Likes: 4
From: Lone Star State
Default

I think you need to swap for my turbosmart that's running right lol. Wanna swap
Reply

Get notified of new replies

To Bov adjusted wrong ???





All times are GMT -4. The time now is 07:50 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-7
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-8
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-9
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE