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
Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Wastegated Paxton tuning
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="TTUhouston" data-source="post: 16353714" data-attributes="member: 185096"><p>I am working with Lund on updating my tune after adding a wastegate (@ 10 psig spring), upping pulley to a 3.33 (~15-17? psig without wastegate), ATI harmonic balancer, MMR OPG and CS, and offroad h-pipe. </p><p></p><p>The fuel from 3500-6000 RPM has been a challenge. Originally lund thought no tune updates would be required from my previous tune. We noticed lean/high STFT in this range so he added 15% fuel. Now, new datalog and it helped the AFR (peaks around .86 lambda instead of ~.9 before) but the STFT went way up (peaks around 1.15 now and was 1.10 before). What is interesting is that the STFT and AFR both clear up when we get close to redline because it was originally tuned at ~10 psig at redline. </p><p></p><p>To me that says its a tune issue not a mechanical fuel issue, it would be worst at high RPM (max fuel demand). Something is definitely confusing though.</p><p></p><p>Any help appreciated.</p></blockquote><p></p>
[QUOTE="TTUhouston, post: 16353714, member: 185096"] I am working with Lund on updating my tune after adding a wastegate (@ 10 psig spring), upping pulley to a 3.33 (~15-17? psig without wastegate), ATI harmonic balancer, MMR OPG and CS, and offroad h-pipe. The fuel from 3500-6000 RPM has been a challenge. Originally lund thought no tune updates would be required from my previous tune. We noticed lean/high STFT in this range so he added 15% fuel. Now, new datalog and it helped the AFR (peaks around .86 lambda instead of ~.9 before) but the STFT went way up (peaks around 1.15 now and was 1.10 before). What is interesting is that the STFT and AFR both clear up when we get close to redline because it was originally tuned at ~10 psig at redline. To me that says its a tune issue not a mechanical fuel issue, it would be worst at high RPM (max fuel demand). Something is definitely confusing though. Any help appreciated. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Wastegated Paxton tuning
Top