Cant read boost on my lb7 with edge

Dave L Weaver

New member
Apr 5, 2011
57
0
0
38
Chester County Pa
I have a edge insight cts monitor and it only reads up to 22 psi stop there and never spikes over. I am running a 2.8 71 mm turbo s0 i know its boosting way more! Any ideas?
 

McRat

Diesel Hotrodder
Aug 2, 2006
11,249
26
38
64
Norco CA
www.mcratracing.com
37 - 14.7 (atmospheric) = 22 boost.

Not sure if that's significant, but it might be.

But more to the point, if the device is reading the ECM, then it's restricted by what the ECM will report. Not sure at the "cap" point on LB7's but I do know that the LLY's are capped by the ECM at about 30 PSI IIRC.
 

Dave L Weaver

New member
Apr 5, 2011
57
0
0
38
Chester County Pa
37 - 14.7 (atmospheric) = 22 boost.

Not sure if that's significant, but it might be.

But more to the point, if the device is reading the ECM, then it's restricted by what the ECM will report. Not sure at the "cap" point on LB7's but I do know that the LLY's are capped by the ECM at about 30 PSI IIRC.
Well we stuck a guage on and it was well over 40 on just my 4th efi setting!
 

1chevy02

New member
Jun 23, 2009
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Do some searching, seems like mcrat posted about putting a different sensor in his lly.