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
SVTPerformance's Chain of Restaurants
Tuning À la carte
MAF trasfer table and AFR
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="Don 95Vert" data-source="post: 14505671" data-attributes="member: 15121"><p>I should say, read the book! HAHA! Ford uses 14.64 as stoich for gasoline and 14.08 as stoich for E10. So it is a good idea to use those when tuning Fords, since Ford uses those values. Most widebands in the price range that most people can afford - with a couple exceptions - are calibrated for stoich being 14.7. Since this is just an internal calculation based on Lambda, all is not lost. Because really when you see 14.7 on a non-adjustable wideband, you can figure it must be Lambda 1.0 - and it does not matter what fuel is used, that is stoich. Even if the stoich is actually 14.08, or 9.76, it doesn't matter, you still look for 14.7. The key is Lambda and Lambda 1.0 equals 14.7 via the manufacturer's internal calculation. The sensor itself switches around the stoich point of whatever fuel is being used, it does not care what it is, it just knows what stoich is and then the electronics calculate that data and report to you what you see. Using Lambda to tune eliminates this confusion. And, calculations are being made whether you use fuel trims or not - and using them at some point in the process will be a good double check on your cheap (compared to a 6k lab grade Horiba) wideband and will tell you if all is well with your 02 sensors when they start working again. Of course 2011+ with wideband sensors from the factory are a bit different.</p></blockquote><p></p>
[QUOTE="Don 95Vert, post: 14505671, member: 15121"] I should say, read the book! HAHA! Ford uses 14.64 as stoich for gasoline and 14.08 as stoich for E10. So it is a good idea to use those when tuning Fords, since Ford uses those values. Most widebands in the price range that most people can afford - with a couple exceptions - are calibrated for stoich being 14.7. Since this is just an internal calculation based on Lambda, all is not lost. Because really when you see 14.7 on a non-adjustable wideband, you can figure it must be Lambda 1.0 - and it does not matter what fuel is used, that is stoich. Even if the stoich is actually 14.08, or 9.76, it doesn't matter, you still look for 14.7. The key is Lambda and Lambda 1.0 equals 14.7 via the manufacturer's internal calculation. The sensor itself switches around the stoich point of whatever fuel is being used, it does not care what it is, it just knows what stoich is and then the electronics calculate that data and report to you what you see. Using Lambda to tune eliminates this confusion. And, calculations are being made whether you use fuel trims or not - and using them at some point in the process will be a good double check on your cheap (compared to a 6k lab grade Horiba) wideband and will tell you if all is well with your 02 sensors when they start working again. Of course 2011+ with wideband sensors from the factory are a bit different. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
SVTPerformance's Chain of Restaurants
Tuning À la carte
MAF trasfer table and AFR
Top