Manual Boost Controllers (MBCs). I don't want to spend two or three hours adjusting the waste gate rod again, only to find that the boost is still out of spec, so I'm going to install a manual boost controller.
Which one to get? The market has been infested with chinee crap MBCs, ranging in price from $3.90 to $25. "Made in US of A" start at about $100, with few choices in between. I'm leaning heavily toward the $100 variety; a catastrophic failure of the MBC could melt pistons. For the un-initiated, a MBC is installed in the boost sense line between the turbo charger pressure side (intake) and the waste-gate control valve (WGCV), so that the amount of pressure reaching the WGCV can be modulated. The MBC design I'm looking at has a simple seat-ball-spring valve, which blocks the boost pressure from reaching the WGCV until it exceeds the (adjustable) pressure of the spring holding the ball. Once the pressure overcomes the spring, full pressure reaches the WGCV and it will open to bleed off boost. ------------- Max Charleston SC _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
