Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
SVT Shelby GT500
Boost Issues
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Willie" data-source="post: 16631659" data-attributes="member: 14133"><p>As you may have read elsewhere, our boost gauge is not a direct reading, rather "inferred". The following is my opinion so take it for what it's worth. I believe this boost gauge is actually reading load, with Zero being a load of 1.00 (or 100 percent volumetric efficiency), or the point where positive pressure kicks in.</p><p></p><p>I have a GM 3-bar MAP sensor. It is used for three things: 1) Reference for my methanol system, 2) Reference for my JMS fuel pump booster, and 3) For datalogging through one analog channel. Comparing my mechanical boost gauge with my MAP sensor values, I know they are basically spot on.</p><p></p><p>I have also datalogged load values. Based on my belief stated above and datalogged values, I created a Boost vs Load spreadsheet. Have you datalogged any full boost passes, before and / or after your gauge started reading low? If so, this would be evidence that you are indeed not making the boost you have. If not, I think the only way to determine this is as 2011 GTCS stated, install a mechanical gauge temporarily and if you can datalog, compare the two, maximum load to what your gauge reads.</p><p></p><p>My spreadsheet shows that 10# boost equals ~ 1.70 Load, 18.2# equals 2.15 Load.</p></blockquote><p></p>
[QUOTE="Willie, post: 16631659, member: 14133"] As you may have read elsewhere, our boost gauge is not a direct reading, rather "inferred". The following is my opinion so take it for what it's worth. I believe this boost gauge is actually reading load, with Zero being a load of 1.00 (or 100 percent volumetric efficiency), or the point where positive pressure kicks in. I have a GM 3-bar MAP sensor. It is used for three things: 1) Reference for my methanol system, 2) Reference for my JMS fuel pump booster, and 3) For datalogging through one analog channel. Comparing my mechanical boost gauge with my MAP sensor values, I know they are basically spot on. I have also datalogged load values. Based on my belief stated above and datalogged values, I created a Boost vs Load spreadsheet. Have you datalogged any full boost passes, before and / or after your gauge started reading low? If so, this would be evidence that you are indeed not making the boost you have. If not, I think the only way to determine this is as 2011 GTCS stated, install a mechanical gauge temporarily and if you can datalog, compare the two, maximum load to what your gauge reads. My spreadsheet shows that 10# boost equals ~ 1.70 Load, 18.2# equals 2.15 Load. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
SVT Shelby GT500
Boost Issues
Top