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
The Terminator
Terminator Talk
Dyno SAE vs STD?
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="03Snake04" data-source="post: 9621732" data-attributes="member: 82298"><p>This is from a magazine article on "dynojet" dynos.</p><p></p><p>SAE j1349 correction:</p><p>29.23 in/hg.</p><p>77 degree temp</p><p>0 percent humidity</p><p></p><p>Standard correction:</p><p>29.92 in/hg.</p><p>68 degree temp</p><p>0 percent humidity</p><p></p><p>What this all means is that "Standard" will give you 2.6 percent better numbers (very popular for the import crowd). The example the magazine gave was a Vette making 412 (SAE corrected hp). With the Standard correction it made 423. All that you will have to do is multiply your "Standard rwhp" by .974 This should equal SAE (the one everyone uses). Up here in the great white North (Washington) the temps are in the 40-50 degree area, along with 29.9-30 in/hg. So, our numbers are actually corrected down from what it made at the rear. Usually, 96-97 percent of actual posted numbers. If you dyno when it's a hotter temp or higher altitudes the numbers will usually correct up to equal the desired temp, humidity and pressure of the correction factor. </p><p></p><p></p><p><strong>Source:</strong> LS1tech.com</p></blockquote><p></p>
[QUOTE="03Snake04, post: 9621732, member: 82298"] This is from a magazine article on "dynojet" dynos. SAE j1349 correction: 29.23 in/hg. 77 degree temp 0 percent humidity Standard correction: 29.92 in/hg. 68 degree temp 0 percent humidity What this all means is that "Standard" will give you 2.6 percent better numbers (very popular for the import crowd). The example the magazine gave was a Vette making 412 (SAE corrected hp). With the Standard correction it made 423. All that you will have to do is multiply your "Standard rwhp" by .974 This should equal SAE (the one everyone uses). Up here in the great white North (Washington) the temps are in the 40-50 degree area, along with 29.9-30 in/hg. So, our numbers are actually corrected down from what it made at the rear. Usually, 96-97 percent of actual posted numbers. If you dyno when it's a hotter temp or higher altitudes the numbers will usually correct up to equal the desired temp, humidity and pressure of the correction factor. [B]Source:[/B] LS1tech.com [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
The Terminator
Terminator Talk
Dyno SAE vs STD?
Top