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
Engine/Tuning
24* of timing on an upper only???
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="01cobravortech" data-source="post: 11050052" data-attributes="member: 14885"><p>I don't believe I speculated the A/F would really be as low as 11.5 as that would be overly optimistic. I think under 12.0 though. In my own experience, I've had a tailpipe sniffer read a 12.4 and a wideband show 11.9. I've seen a guy report on ModularFords a while back that the tailpipe sniffer read .8 leaner than what the wideband setup read. I'm not saying we're going to see these kind of variances in every car but they are off some from what a tailpipe sniffer reports. </p><p> </p><p>And that doesn't even factor in how often dyno owners change the 02 sensor on their reader. From what I've come to understand, some of these sensors are about $500 and need to be replaced after a certain number of dyno pulls because their accuracy is affected. So I mean theres a lot of things to consider when relying on a tailpipe sniffer to get an "accurate" reading. I would be curious to see what a good wideband would show hooked up to bungs before the cats.</p><p></p><p>And I also don't dismiss the good possibility that it is also as lean as you believe. Either way, I'm not a fan of verifying A/F by the dyno. I know you just can't weld on bungs that easily when we buy these cars but I think its a good "mod" to do on these cars for more accurate A/F readings as the setups become wilder and more dependant on very accurate A/F. And there are a lot of good tuners out there that can meet this demand.</p></blockquote><p></p>
[QUOTE="01cobravortech, post: 11050052, member: 14885"] I don't believe I speculated the A/F would really be as low as 11.5 as that would be overly optimistic. I think under 12.0 though. In my own experience, I've had a tailpipe sniffer read a 12.4 and a wideband show 11.9. I've seen a guy report on ModularFords a while back that the tailpipe sniffer read .8 leaner than what the wideband setup read. I'm not saying we're going to see these kind of variances in every car but they are off some from what a tailpipe sniffer reports. And that doesn't even factor in how often dyno owners change the 02 sensor on their reader. From what I've come to understand, some of these sensors are about $500 and need to be replaced after a certain number of dyno pulls because their accuracy is affected. So I mean theres a lot of things to consider when relying on a tailpipe sniffer to get an "accurate" reading. I would be curious to see what a good wideband would show hooked up to bungs before the cats. And I also don't dismiss the good possibility that it is also as lean as you believe. Either way, I'm not a fan of verifying A/F by the dyno. I know you just can't weld on bungs that easily when we buy these cars but I think its a good "mod" to do on these cars for more accurate A/F readings as the setups become wilder and more dependant on very accurate A/F. And there are a lot of good tuners out there that can meet this demand. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
The Terminator
Engine/Tuning
24* of timing on an upper only???
Top