chpspecial Posted October 22, 2014 Report Share Posted October 22, 2014 I have a used gm 2 bar map sensor from a cobalt ss. Plug and play minus the tuning. 35$ shipped to the lower 48 Sent from my HTC6500LVW using Tapatalk Quote Link to comment Share on other sites More sharing options...
chpspecial Posted October 26, 2014 Author Report Share Posted October 26, 2014 Bump Sent from my HTC6500LVW using Tapatalk Quote Link to comment Share on other sites More sharing options...
Aldofashow Posted October 26, 2014 Report Share Posted October 26, 2014 Where would this max out at and will it work on a 2003 Quote Link to comment Share on other sites More sharing options...
BlueAWDSS Posted October 26, 2014 Report Share Posted October 26, 2014 14.7 Quote Link to comment Share on other sites More sharing options...
chpspecial Posted October 30, 2014 Author Report Share Posted October 30, 2014 Where would this max out at and will it work on a 2003 14.7 Yes and yes. It came of off my 2004. And a 2 bar sensor reads 14.7psi of vacuum and 14.7 of positive boost in kpa terms it reads 205 kpa Sent from my HTC6500LVW using Tapatalk Quote Link to comment Share on other sites More sharing options...
Aldofashow Posted October 30, 2014 Report Share Posted October 30, 2014 If I hit 15lbs of boost will that even matter and I can add this and still run the MAF and not have to swap to an sd tune right. just add this on when I mount everything and have the setup tuned and run it Quote Link to comment Share on other sites More sharing options...
BlueAWDSS Posted October 30, 2014 Report Share Posted October 30, 2014 Yes and yes. It came of off my 2004. And a 2 bar sensor reads 14.7psi of vacuum and 14.7 of positive boost in kpa terms it reads 205 kpa Sent from my HTC6500LVW using Tapatalk The map sensor will read more than 14.7 vacuum. Figuring that a healthy motor will idle in between 18 to 21 without a hub overlap cam. 2 bar maps will only read 14.7 pressure. Reason it being call a manifold absolute pressure sensor. Paul If I hit 15lbs of boost will that even matter and I can add this and still run the MAF and not have to swap to an sd tune right. just add this on when I mount everything and have the setup tuned and run it If you're going boosted just run a SD tune. A lot easier than running both. Just saying. Quote Link to comment Share on other sites More sharing options...
chpspecial Posted October 30, 2014 Author Report Share Posted October 30, 2014 The map sensor will read more than 14.7 vacuum. Figuring that a healthy motor will idle in between 18 to 21 without a hub overlap cam. 2 bar maps will only read 14.7 pressure. Reason it being call a manifold absolute pressure sensor. Paul If you're going boosted just run a SD tune. A lot easier than running both. Just saying. You are mistaking psi with inhg. Sent from my HTC6500LVW using Tapatalk Quote Link to comment Share on other sites More sharing options...
BlueAWDSS Posted October 30, 2014 Report Share Posted October 30, 2014 Nope definitely not lol. Psi is pressure, inhg is inches vacuum. A 2 bar map will read past 14.7 inhg. But will not read past 14.7 psi. Quote Link to comment Share on other sites More sharing options...
Aldofashow Posted October 30, 2014 Report Share Posted October 30, 2014 Ok I would think my vacuum would be the same as stock unless I swap the cam which are future plans but for now I would just be adding boost so would this work for me or should I be looking at getting something different. Quote Link to comment Share on other sites More sharing options...
chpspecial Posted October 31, 2014 Author Report Share Posted October 31, 2014 A two bar map sensor will read two bars of pressure. In an engine the first bar is usually negative or vacuum. Psi is a positive unit of measure not negative hense why vac/boost gauges don't read negative psi for vacuum. InHg is known unit for negative pressure, I.e. vacuum. 1 bar= 14.7 psi=29.5 inhg. So a 2 bar map sensor can read up to 29.5 inhg in vacuum and 14.7 psi in boost. Or if you want to talk absolute terms. 200 kpa, where 0-100 is vacuum, 100-200kps is boost. Sent from my HTC6500LVW using Tapatalk Quote Link to comment Share on other sites More sharing options...
BlueAWDSS Posted November 4, 2014 Report Share Posted November 4, 2014 That's what I was getting at. Quote Link to comment Share on other sites More sharing options...
WantaSSS Posted May 6, 2015 Report Share Posted May 6, 2015 Shot in the dark... Still have this? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.