Boost limits of 93 octane? - Ford Mustang Forums : Corral.net Mustang Forum
 
LinkBack Thread Tools Display Modes
post #1 of 1 Old 05-19-2010, 12:07 PM Thread Starter
Registered User
 
chris123's Avatar
 
Trader Feedback: (43)
Join Date: Nov 2002
Location: Woodstock,Georgia
Posts: 1,220
Boost limits of 93 octane?

Recently went to the track and was running 93 octane and 14psi of boost and all was well with the passes. Tried to get my AMS500 to ramp boost in second gear but had issue with the controller all night(My fault im sure). Decided to induce a small vaccum leak in the signal line to the waste gate via a vacuum T. When I came out of the hole the boost spiked to 21psi and it popped through the intake badly! I got out of the throttle and backed into easily and it did it again this time blowing the one of the intake charge pipes off. Obviously the "Small" signal leak to the waste gate was larger than expected and as I was only looking for 3 or 4 more pounds of boost I found 7lbs! My question is after reading the data which I logged in my FAST the Air/Fuel was 12.0 to 1 and timing was 19 degrees, why did it pop back through the intake? The plugs are Autolite 3923 racing gapped @ .025 with a MSD 6al ignition system. Any Ideas?


358 cid Dart block (8.2 deck) foxlake ported Victor Jr's
Victor 5.0 Anderson b4 cam BBK long tubes TKO 600
Anderson Motorsports YSI 8/2.95 10 rib setup
755RWHP @ 6750 RPM'S on pump gas & meth
chris123 is offline  
Sponsored Links
Advertisement
 
Reply

Bookmarks

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Mustang Forums : Corral.net Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Maximum boost limits on pump gas? twin051302 Superchargers 15 03-20-2008 05:32 AM
what are practical limits of boost and pump gas??? nutty90 5.0/5.8 Engine Tech 1 08-24-2002 07:46 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome