Spark plug gap 919 - Wrist Twisters
 
Thread Tools Display Modes
post #1 of 9 Old 06-19-2007, 01:43 PM Thread Starter
Optio
 
Join Date: Jan 2006
Location: Lousiville
Posts: 903
Rep Power: 1
 

Awards Showcase
Veteran Donation 
Total Awards: 2

Spark plug gap 919

OK book list .030-.040 sounds like a pretty big range to me.Mine(stock ngk) came set at like .032 So it'll be Ok.But what would be best?

tvetree is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 06-19-2007, 01:47 PM
Pilus Posterior
 
wisco919's Avatar
 
Join Date: Dec 2006
Location: Milwaukee, Wisconsin
Posts: 2,119
Rep Power: 1
 

Awards Showcase
Donation Veteran 
Total Awards: 2

I believe by theory, the wider the gap the hotter the spark.

wisco919 is offline  
post #3 of 9 Old 06-19-2007, 01:51 PM
Old, Bold rider
 
robtharalson's Avatar
 
Join Date: Jan 2007
Location: Aurora, Colorado
Posts: 2,339
Rep Power: 1
 
Garage

Awards Showcase
Donation Veteran Community Leadership 
Total Awards: 3

The -9 in CR8XEH-9 denotes gap in tenths of a millimeter, so it should be about 0.036". This is fine for the 919, which seems to have enough zap to light the fires even with gaps exceeding 0.040". The wider the gap, the hotter the spark only up to a point -- even if the energy from the coils is sufficient at idle, it may not be at higher loads, where the higher pressures make the formation of the ionization path (necessary for spark formation) much more difficult. Stick close to the recommended gap.

Rob

robtharalson is offline  
post #4 of 9 Old 06-19-2007, 02:05 PM
Cornicen
 
royalchoppers's Avatar
 
Join Date: Mar 2007
Location: Marshall, TX
Posts: 575
Rep Power: 1
 
You're suppossed to have a gap?

Motorusher formally known as DirtySanchez919.
royalchoppers is offline  
post #5 of 9 Old 06-19-2007, 04:59 PM
 
Join Date: Feb 2007
Posts: 66
Rep Power: 0
 
You're suppossed to have a gap?

Yep, you fill the gap with the plug...

05919er is offline  
post #6 of 9 Old 06-19-2007, 07:37 PM Thread Starter
Optio
 
Join Date: Jan 2006
Location: Lousiville
Posts: 903
Rep Power: 1
 

Awards Showcase
Veteran Donation 
Total Awards: 2

Ok so I'll leave it at 32ish and if for anyreason I need to lift the tank again,I'll regap them to 36ish.

BTW #3 is reason enough to remove the pairs system,I really didn't give it much thought till I changed plugs this time.

tvetree is offline  
post #7 of 9 Old 06-20-2007, 10:34 AM
Hornet Grandpa!
 
Join Date: Jun 2006
Location: Richland, WA
Posts: 271
Rep Power: 1
 
I just bought four NGK Irridium plugs to put in this weekend. The invoice has a statement printed on it that says, "Do not gap these plugs, you might break the electrode!" I have not opened them to check the gap but if they are not right on, I'm just going to gap them for the recommended .035" (recommendation from NGK for the 919).

support_six is offline  
post #8 of 9 Old 06-21-2007, 07:15 AM
Hornet Grandpa!
 
Join Date: Jun 2006
Location: Richland, WA
Posts: 271
Rep Power: 1
 
I just opened the boxes on my Irridium plugs. They are gapped at .035 so I don't have to worry!

support_six is offline  
post #9 of 9 Old 06-21-2007, 08:12 AM
Corner speed sets u free
 
streakin919's Avatar
 
Join Date: Sep 2006
Location: Pacific NW
Posts: 1,115
Rep Power: 1
 
Garage

Awards Showcase
Trackday Recognition Donation Veteran 
Total Awards: 3

Quote:
Originally Posted by support_six View Post
I just opened the boxes on my Irridium plugs. They are gapped at .035 so I don't have to worry!
I've been using irridium for the past 2 years and love them.... better top end response on the track with them.

streakin919 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Wrist Twisters 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



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 Off
Pingbacks are Off
Refbacks are Off

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