Join Today
Results 1 to 14 of 14
  1. #1
    Lawnmower Boy
    Now known as WAPAHO!!!
    JUDGENINJA's Avatar
    Join Date
    Nov 2004
    Location
    Guildford, Surrey
    Posts
    6,707
    Thanks
    1,058
    Thanked 1,733 Times in 1,162 Posts

    Manual Boost contollers....

    Well peeps I haven't raised enough cash to get the RICA unit I'm desperate to own so I'm going to opt for a MBC for the time being.....

    I'm trying to get info on how they work....

    Does the tuning dial screw in to close the valve or hold it open..?
    Does the valve work on pressure or vacuum..?

    Have people seen the brass one on Eaby for 22.99?
    Is it true that the brass one will be more reliable than the steel one?
    Is the price a good price?

    I did have a thought could I get one from a hydralic suppliers etc..and would it be cheaper?

    anyway any info would be good...?


    Current Garage:
    1997 960 3.0L 24v - Polestar...(Honest guv..!!)
    1997 855 T5 S - stripped to 1300kgs gross weight - 14.2sec qtr(rank 17*)
    2001 V40 T4 SE - 14.199@100.15MPH - Hybrid Turbo/VXR injectors and DeCat(Rank 15*)
    *Data Sept 2013
    Any Stuff For Sale - check out my Ebay link

  2. #2
    This user has no status

    Join Date
    Aug 2004
    Location
    Braintree, Essex
    Posts
    1,478
    Thanks
    0
    Thanked 13 Times in 12 Posts
    Boost controllers serve two functions; increase boost levels beyond the set wastegate spring pressure and reduce the "pre-opening" of the wastegate-controlled boost pressure.

    A manual boost controller will allow you to increase boost levels beyond what the wastegate spring is set. How does it work? Below is a diagram of a manual wastegate.



    In order to run a manual boost controller we need to tee off of the vacuum line which runs from the turbo compressor housing to the compressor reference port. The manual boost controller works using a spring and check ball, by screwing the adjusting screw into the boost controller you put more pressure on the spring which reduces the amount of airflow through the boost controller and into the boost controller port. Less airflow means less pressure will be assisting the spring to keep the wastegate plunger shut. The pressure in the vacuum line going to the compressor reference port will equal the pressure the turbo is producing. A boost controller will allow you to direct some of that pressure to the top of the wastegate diaphragm creating two opposable forces. By adjusting the spring pressure of the boost controller you can vary the amount of boost that the turbo will make before opening the wastegate's plunger. If you want to run a higher boost level than the wastegate spring allows you will need a boost controller.


    The manual boost controller is a very simple device that can help you make more power from your turbo setup. Here are three additional things to keep in mind about wastegates:

    Without a line running from the compressor housing to the wastegate's compressor reference port boost pressures will keep increasing forever. This will quickly destroy your engine!

    Run a wastegate as close to the desired boost pressure as possible this will help the boost controller handle the pressure better.

    You can't reduce your desired boost pressure lower than the spring rate.
    Brass ones are more common but this is due to it being a easier material to work with.

    The straight or "Inline" style MBC's are supposed to be better than the ones that "Right Angled", giving quicker responce and less spikes.

    Hope this helps
    SAM ECU
    Custom Super 60 18T Turbo With Uprated 300/70 W/G
    Blitz Dual SBC Boost Controller
    Blue Injectors
    NGK Iridium Spark Plugs
    Custom 1 Box 3" Turbo-Back Exhaust
    TurboXS Type R-HFL
    K&N Style Cone Filter With Cold Feed
    87 Deg Stat
    Full Poly Bushed
    Custom 60mm Drop Suspension
    Strut Brace
    18" Shadow Chrome Pegs
    305mm Drilled Brembo's With Ferodo DS Pads
    6000k HID Kit
    Flat Areo Style Wipers


    See All The Pics Of SAM Here

  3. #3
    Lawnmower Boy
    Now known as WAPAHO!!!
    JUDGENINJA's Avatar
    Join Date
    Nov 2004
    Location
    Guildford, Surrey
    Posts
    6,707
    Thanks
    1,058
    Thanked 1,733 Times in 1,162 Posts
    Your a fountain of knowledge as always....!!!!!

    An inline one it is then...
    Thanks

    JUDGE


    Current Garage:
    1997 960 3.0L 24v - Polestar...(Honest guv..!!)
    1997 855 T5 S - stripped to 1300kgs gross weight - 14.2sec qtr(rank 17*)
    2001 V40 T4 SE - 14.199@100.15MPH - Hybrid Turbo/VXR injectors and DeCat(Rank 15*)
    *Data Sept 2013
    Any Stuff For Sale - check out my Ebay link

  4. #4
    This user has no status

    Join Date
    Aug 2004
    Location
    Braintree, Essex
    Posts
    1,478
    Thanks
    0
    Thanked 13 Times in 12 Posts
    Quote Originally Posted by JUDGENINJA
    Your a fountain of knowledge as always....!!!!!

    An inline one it is then...
    Thanks

    JUDGE
    Just glad to be of service mate
    SAM ECU
    Custom Super 60 18T Turbo With Uprated 300/70 W/G
    Blitz Dual SBC Boost Controller
    Blue Injectors
    NGK Iridium Spark Plugs
    Custom 1 Box 3" Turbo-Back Exhaust
    TurboXS Type R-HFL
    K&N Style Cone Filter With Cold Feed
    87 Deg Stat
    Full Poly Bushed
    Custom 60mm Drop Suspension
    Strut Brace
    18" Shadow Chrome Pegs
    305mm Drilled Brembo's With Ferodo DS Pads
    6000k HID Kit
    Flat Areo Style Wipers


    See All The Pics Of SAM Here

  5. #5
    Senior Member
    I have been unfaithful to
    Volvo twice since joining this
    forum but it's only for more
    than 5 pots nuf said
    lance's Avatar
    Join Date
    Aug 2004
    Location
    Notts
    Posts
    3,391
    Thanks
    946
    Thanked 281 Times in 249 Posts
    Judge
    I have a mbc sat in my car unconected that you can have for 10+ postage, if you are intrested, or I can bring it to Avon Park!
    2004 V50 T5 SE

  6. #6
    Lawnmower Boy
    Now known as WAPAHO!!!
    JUDGENINJA's Avatar
    Join Date
    Nov 2004
    Location
    Guildford, Surrey
    Posts
    6,707
    Thanks
    1,058
    Thanked 1,733 Times in 1,162 Posts
    Yes Please....PM sent...


    Current Garage:
    1997 960 3.0L 24v - Polestar...(Honest guv..!!)
    1997 855 T5 S - stripped to 1300kgs gross weight - 14.2sec qtr(rank 17*)
    2001 V40 T4 SE - 14.199@100.15MPH - Hybrid Turbo/VXR injectors and DeCat(Rank 15*)
    *Data Sept 2013
    Any Stuff For Sale - check out my Ebay link

  7. #7
    Shiny Superstar
    Back in the game!
    Wobbly Dave's Avatar
    Join Date
    Aug 2004
    Location
    Stunning Shropshire
    Posts
    17,736
    Thanks
    2,495
    Thanked 3,456 Times in 2,451 Posts
    I am feeling the love!
    Volvo ABS ECU Repair
    Join my projecteers tribe - Old Volvos Never Die - They just get faster.

    Visit my VPCUK garage and my YouTube channel - WobblyDave72

  8. #8
    Lawnmower Boy
    Now known as WAPAHO!!!
    JUDGENINJA's Avatar
    Join Date
    Nov 2004
    Location
    Guildford, Surrey
    Posts
    6,707
    Thanks
    1,058
    Thanked 1,733 Times in 1,162 Posts
    I do start worry when you start to feel the love.... have you been playing that spank the monkey game ??????.........lol


    Current Garage:
    1997 960 3.0L 24v - Polestar...(Honest guv..!!)
    1997 855 T5 S - stripped to 1300kgs gross weight - 14.2sec qtr(rank 17*)
    2001 V40 T4 SE - 14.199@100.15MPH - Hybrid Turbo/VXR injectors and DeCat(Rank 15*)
    *Data Sept 2013
    Any Stuff For Sale - check out my Ebay link

  9. #9
    Shiny Superstar
    Back in the game!
    Wobbly Dave's Avatar
    Join Date
    Aug 2004
    Location
    Stunning Shropshire
    Posts
    17,736
    Thanks
    2,495
    Thanked 3,456 Times in 2,451 Posts
    I was speaking more of the ovlov! Namely the spirit of mutual appreciation and co-operation, in respect of a Swedish car marque.
    Volvo ABS ECU Repair
    Join my projecteers tribe - Old Volvos Never Die - They just get faster.

    Visit my VPCUK garage and my YouTube channel - WobblyDave72

  10. #10
    This user has no status

    Join Date
    Aug 2004
    Location
    Braintree, Essex
    Posts
    1,478
    Thanks
    0
    Thanked 13 Times in 12 Posts
    Quote Originally Posted by dave850R
    I was speaking more of the ovlov! Namely the spirit of mutual appreciation and co-operation, in respect of a Swedish car marque.
    We love feeling the love, dont we Dave
    SAM ECU
    Custom Super 60 18T Turbo With Uprated 300/70 W/G
    Blitz Dual SBC Boost Controller
    Blue Injectors
    NGK Iridium Spark Plugs
    Custom 1 Box 3" Turbo-Back Exhaust
    TurboXS Type R-HFL
    K&N Style Cone Filter With Cold Feed
    87 Deg Stat
    Full Poly Bushed
    Custom 60mm Drop Suspension
    Strut Brace
    18" Shadow Chrome Pegs
    305mm Drilled Brembo's With Ferodo DS Pads
    6000k HID Kit
    Flat Areo Style Wipers


    See All The Pics Of SAM Here

  11. #11
    Senior Member
    This user has no status
    Justin's Avatar
    Join Date
    Aug 2004
    Location
    Midlands UK
    Posts
    3,706
    Thanks
    374
    Thanked 678 Times in 255 Posts
    Im right there with ya, Dave and Bracer, the force is strong in you 2
    <a href="<a href=http://s65.photobucket.com/albums/h225/RobertBingley/Misc/?action=view&current=Animation1.gif target=_blank>http://s65.photobucket.com/albums/h2...Animation1.gif</a>" target="_blank"><img src="<a href=http://i65.photobucket.com/albums/h225/RobertBingley/Misc/Animation1.gif target=_blank>http://i65.photobucket.com/albums/h2...Animation1.gif</a>" border="0" alt="Photobucket"></a>

  12. #12
    Shiny Superstar
    Back in the game!
    Wobbly Dave's Avatar
    Join Date
    Aug 2004
    Location
    Stunning Shropshire
    Posts
    17,736
    Thanks
    2,495
    Thanked 3,456 Times in 2,451 Posts
    I came short of using "group hug". What with Lance giving the MBC away practically and Steve to tell how to set it up ... I tell ya - I'm welling up
    Volvo ABS ECU Repair
    Join my projecteers tribe - Old Volvos Never Die - They just get faster.

    Visit my VPCUK garage and my YouTube channel - WobblyDave72

  13. #13
    Lawnmower Boy
    Now known as WAPAHO!!!
    JUDGENINJA's Avatar
    Join Date
    Nov 2004
    Location
    Guildford, Surrey
    Posts
    6,707
    Thanks
    1,058
    Thanked 1,733 Times in 1,162 Posts
    Thread resurection - not for any other reason than to follow up on Stibo's declaration to VPC love...this was my first ever thread in 2005, as you can see VPC love was strong back there too... A group of normal(ish) people willing to help me out..... The people may have changed, but the sentiment in the site is alive and well....


    Current Garage:
    1997 960 3.0L 24v - Polestar...(Honest guv..!!)
    1997 855 T5 S - stripped to 1300kgs gross weight - 14.2sec qtr(rank 17*)
    2001 V40 T4 SE - 14.199@100.15MPH - Hybrid Turbo/VXR injectors and DeCat(Rank 15*)
    *Data Sept 2013
    Any Stuff For Sale - check out my Ebay link

  14. The Following 7 Users Say Thank You to JUDGENINJA For This Useful Post:

    claymore (Monday 16th July 2012),Jamest5r (Monday 16th July 2012),lance (Monday 16th July 2012),MoleT-5R (Monday 16th July 2012),Rhys (Monday 16th July 2012),Rnash2002 (Monday 16th July 2012),t6monster (Tuesday 17th July 2012)

  15. #14
    Senior Member
    I have been unfaithful to
    Volvo twice since joining this
    forum but it's only for more
    than 5 pots nuf said
    lance's Avatar
    Join Date
    Aug 2004
    Location
    Notts
    Posts
    3,391
    Thanks
    946
    Thanked 281 Times in 249 Posts
    I'm still here, forgot I had an Mbc but remember judges 850 and good old days at the pod and avon
    2004 V50 T5 SE


 

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
ipv6 ready