Manual Boost Controller - Cab or Engine Bay

[Schmieder]

1996 Grand Prix SE hybrid/3100v6 Turbo T04E .50 trim 5-8psig

The title pretty much says it.

I know there is a delay of sorts that is increased the longer the vacuum lines are from the compressor to the boost controller to the wastegate actuator.

But, when running low boost, 5-8 psig, how bad is the delay if I keet the vacuum lines to a minimum distance from the engine bay to the cab and back?

Or in other words...Has anyone installed a manual boost controller in the cab? And if so, was it effective or should I completely avoid the idea and keep the controller in the engine bay?

Thanks guys

[RedZMonte]

engine bay would be ideal... WAY back in the day my buddy had a turbo CRX (in 1998 ) he used a fish tank vave block and ran it to the glove box, when he wanted to race he opened the glove box, flipped a couple of the bleeder valves and raced... it was GHETTO but it worked..

shorter the better.

[WrathOfSocrus]

I remembered reading this a while back and thought of it when this thread popped up. Took a minute for me to hunt it down but there is a lot of interesting stuff on that site, particularly playing around with turbo modifications.

http://autospeed.com/cms/A_111119/article.html

I just bought some TGP parts recently and have been curious about some of these things, so I figured I would bring this up and hear what boosted people around here have to say about it.

EDIT - http://autospeed.com/cms/A_111348/article.html <- here is another article they have on the topic of boost control/wastegate creep

[RedZMonte]

somthing to consider, from what i understand on turbo with a Interal WG the "Ball and Spring" MBC will increase spool up and make the internal WG more accurate. not allowing it the WG to open untill the boost level set by the controler is hit... im not sure it offers the same advantage on a external WG... they are more precise for boost control, can someone verify that for me?

S

[Schmieder]

somthing to consider, from what i understand on turbo with a Interal WG the "Ball and Spring" MBC will increase spool up and make the internal WG more accurate. not allowing it the WG to open untill the boost level set by the controler is hit... im not sure it offers the same advantage on a external WG... they are more precise for boost control, can someone verify that for me?

S

I notice a very slight decrease in spool time using the MBC. The MBC is rigged between the turbo, external wg and plenum. No more then 2' of vac hose used. No creep so far, it hits the boost psi every time and sticks, no creep what so ever as far as I can tell by the gauge.

[timg]

Mine was in the engine bay right on the turbo. I don't think I would want to run a ton of tubing into the interior of the car.

Tim