Vacuum Source for D1SC Bypass Valve\Boost Gauge
Thread Starter
Teching In
Joined: Jul 2005
Posts: 2
Likes: 0
From: Minden Nevada
Vacuum Source for D1SC Bypass Valve\Boost Gauge I have recently installed a D1SC kit on my 02 SS. It came with the typical 4" pulley. I was only getting about 3 lbs boost, so I went to a 3.6". Now I am getting a little over 5. I live at 4500 feet, so you can expect lower boost numbers than at sea level. I am curious if my vacuum source is good enough and if the bypass valve is opening all the way? Where is the best source to pull the vacuum? I am currently pulling it off the line to the brake booster... Any help would be greatly appreciated...
Thread Starter
Teching In
Joined: Jul 2005
Posts: 2
Likes: 0
From: Minden Nevada
Good to know, I will leave it running off the brake booster line... I agree about the low boost numbers, I am hoping it is elevation... The motor is stock, just lt's, injectors, fuel pump...
Its probbaly about right with headers and your elevation, you can drop to a 3.4 but belt slippage starts to come into play. Also depends how high you turn it, I always ran my stock motor ATI car to 64-6500 rpm so you see a little more up there.
