|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Boost hang with JB4
|
|
08-15-2011, 03:30 AM | #1 |
Private First Class
16
Rep 185
Posts |
Boost hang with JB4
Is anyone else running into any problems on the highway? I can't seem to cruise around 80 without the car boosting 1-3 pounds (according to boost on fuel)
Once I put the car into "cruise" however the car doesn't boost at all. Only occasionally when going up hills ect.. This normal ? Mods now are DCI, Catless DP's, and jb4 (map 2) |
08-15-2011, 07:56 AM | #2 |
Major General
177
Rep 6,631
Posts |
The jb4/Procede reads preboost, which isn't necessarily accurate at low throttle. I used to have a mechanical boost gauge in my last n54 which reported vacuum at up to 3-4 psi on the in-dash piggy boost gauge.
Perfectly normal.
__________________
E90 LCI N54 6AT
|
Appreciate
0
|
08-15-2011, 08:17 AM | #3 | |
Joint Chiefs of Staff
4918
Rep 115,980
Posts |
Quote:
If you want to verify boost you can always do a catalog with the JB4 and/or get a dedicated boost gauge. Mike |
|
Appreciate
0
|
Bookmarks |
|
|