What should my vacuum be? MS3 cam
04-12-2009, 02:43 PM
#1
On The Tree
Thread Starter
iTrader: (10)
Join Date: Jun 2007
Location: NE Philadelphia PA
Posts: 188
Likes: 0
Received 0 Likes
on
0 Posts
What should my vacuum be? MS3 cam I have been dealing with some issues after my brake conversion and cam upgrade. Don't know if its vacuum related or at the brakes.
I upgraded my LS powered Nissan 240sx. Ported 243 heads, springs, cams, well the entire top end. With the Texas Speed MS3 cam 114LSA at idle I see 8-10lbs vacuum? Is that the normal for my cam choice? I may have a bad brake booster, I checked everything else, but my brake feel somewhat manual.
I upgraded my LS powered Nissan 240sx. Ported 243 heads, springs, cams, well the entire top end. With the Texas Speed MS3 cam 114LSA at idle I see 8-10lbs vacuum? Is that the normal for my cam choice? I may have a bad brake booster, I checked everything else, but my brake feel somewhat manual.
04-17-2009, 06:38 PM
#4
Launching!
iTrader: (7)
Join Date: Sep 2005
Location: Cleburne, DFW
Posts: 214
Likes: 0
Received 0 Likes
on
0 Posts
mines on a 112 but i could check and see what i pull.
I got 9.5 at 800 rpm idle, its a stock ls1 with an ms3 and bolt ons. Hope that helps somehow.
I got 9.5 at 800 rpm idle, its a stock ls1 with an ms3 and bolt ons. Hope that helps somehow.
Last edited by slowrollin93; 04-17-2009 at 07:06 PM.
04-17-2009, 09:43 PM
#7
On The Tree
Thread Starter
iTrader: (10)
Join Date: Jun 2007
Location: NE Philadelphia PA
Posts: 188
Likes: 0
Received 0 Likes
on
0 Posts
she bounces from about 930-to 1050 rpm. My -8.95 was being read from the map sensor via the ecu. So the idle may be high I suppose. I need to get it back to the tuner to check a few things out on the tune anyhow. Thanks for the respose I need to get a real vacuum guage on here too
