Blowing spark out (windsor) - Ford Mustang Forums : Corral.net Mustang Forum
 
LinkBack Thread Tools Display Modes
post #1 of 6 Old 07-29-2012, 04:47 PM Thread Starter
Registered User
 
Trader Feedback: (3)
Join Date: Sep 2005
Location: Franklin, Indiana
Posts: 358
Blowing spark out (windsor)

I saw the other thread here but it seemed more inclined towards the mod family.

Car runs really great and pulls clean all the way to 7,500rpm when boost is set at or below 20lbs. Last night with air temps being in the low 70's I turned the boost up to 26lbs and wanted to do some tuning to get ready for some track fun on Wed. Right away the car started breaking up when it exceeded 20+. I kept bringing boost down 1/2 turn at a time (Hallman b/c) and it didn't clean back up till it was back down 19-20lbs. When it was missing out it would drop the air fuel from 11.8/12.2 to 10.2 or richer.

Heads are a Trick Flow High Port

Compression ratio is 9.5:1

The plugs I'm using are NGK BPR8ES gapped at .22, the ignition system consists of a MSD coil, MSD 6AL, Ford racing wires.

I run E-85 and have 105lb injectors. Fuel system is more then enough.

Any suggestions?
Am I a bone head for running this plug?
Should I try switching to the BR8ES the non projected tip?
Different plug all together?
More coil?

Thanks


BOSS 331, GT4276, High Ports, Manual Trans w/RXT twin disc
muchos1898 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old 07-29-2012, 09:11 PM
Registered User
 
GroverDill's Avatar
 
Trader Feedback: (9)
Join Date: Nov 1999
Location: Rathdrum ID 83858
Posts: 1,427
I would change to the non projected tip plug.


KMS West member, SoCal chapter (retired)

9 second power, 14 second driver.
GroverDill is offline  
post #3 of 6 Old 07-29-2012, 09:57 PM
Registered User
 
mw95gt's Avatar
 
Trader Feedback: (1)
Join Date: Mar 2011
Location: Michigan
Posts: 295
What coil is it? I have the MSD HVC 2 coil (the blue one)...Might have to tighten up the gap some or go to a fine wire non projected tip....

95gt Dart block 363, TEA 205 Heads. 78MM Turdblower Custom cam, All fab work done by me....Moates tuned by me, AODE done up, yep I got overdrive. Drag radials, 327 rear. Next setup to come over winter...lol
mw95gt is offline  
Sponsored Links
Advertisement
 
post #4 of 6 Old 07-30-2012, 02:48 AM Thread Starter
Registered User
 
Trader Feedback: (3)
Join Date: Sep 2005
Location: Franklin, Indiana
Posts: 358
The coil is the MSD Blaster tfi. It's the one that looks like an oem replacement.

BOSS 331, GT4276, High Ports, Manual Trans w/RXT twin disc
muchos1898 is offline  
post #5 of 6 Old 07-30-2012, 08:26 AM
Registered User
 
millhouse's Avatar
 
Trader Feedback: (9)
Join Date: May 2002
Location: Simpsonville, SC
Posts: 3,209
Quote:
Originally Posted by muchos1898 View Post
Should I try switching to the BR8ES the non projected tip?
Thanks
Yes. Keep in mind though that a recessed tip plug will typically "act" colder than a projected tip. This typically means you can run one step hotter than normal.

Get the projected tip plugs, gap them at .025 and take it from there.

2016 Ruby Red Mustang GT PP
Prior Cars
1989 Mustang Notch - Twin Turbo - 500RWHP, 1996 Mustang Cobra, 1994 Mustang GT Vert - 408w
millhouse is offline  
post #6 of 6 Old 07-30-2012, 09:11 AM Thread Starter
Registered User
 
Trader Feedback: (3)
Join Date: Sep 2005
Location: Franklin, Indiana
Posts: 358
I already run the BPR8ES and the gap is .22, the (P) means projected. I'm thinking if I switch to a stronger coil and iridium plugs it will most likely solve the issue.

BOSS 331, GT4276, High Ports, Manual Trans w/RXT twin disc
muchos1898 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
Spark Blow Out turbo96 SVT & DOHC 5 07-28-2012 05:02 PM
Spark Plug Trimming, good idea or bad idea? 2002 SN95 GT GT & SOHC 15 03-08-2012 06:35 PM
1986 efi no spark at plug asv 5.0/5.8 Engine Tech 3 05-24-2011 03:37 PM
Cast Iron Windsor SenioR - What Spark Plug? andrewsg203 5.0/5.8 Engine Tech 2 04-03-2011 11:45 AM
Spark, but No Start 306Guy 5.0/5.8 Engine Tech 2 03-07-2011 05:18 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