Any Plug Readers Here ? - Chevelle Tech
Performance Our High Performance area

 13Likes
Reply
 
LinkBack Thread Tools Search this Thread Display Modes
post #1 of 44 (permalink) Old Jun 8th, 19, 7:16 PM Thread Starter
Tech Team
 
Join Date: Aug 2018
Posts: 288
Any Plug Readers Here ?

What do you think ?
Attached Thumbnails
Click image for larger version

Name:	087D119F-BFCB-4DDE-B0C3-C3103C051318_1560035763205.jpg
Views:	93
Size:	25.1 KB
ID:	595374  
Reelysalty is offline  
Sponsored Links
Advertisement
 
post #2 of 44 (permalink) Old Jun 8th, 19, 7:20 PM
Tech Team
Rick
 
Join Date: May 2017
Location: Bossier City, Louisiana
Posts: 626
Re: Any Plug Readers Here ?

It's not too lean. Not oily and not black or sooty. I would not change a thing if all eight look like that one.

E10 ethanol fuel, I predict.

Rick

Sent from my SM-G965U using Tapatalk
DUTCH MAX HEADWORK likes this.

1970 El Camino under Reconstruction - 5.3L LS VORTEC Engine and 4L60E Transmission
B52bombardier1 is offline  
post #3 of 44 (permalink) Old Jun 8th, 19, 7:32 PM
Tech Team
 
Join Date: Apr 2017
Posts: 542
It looks great!
tacomatrd is offline  
 
post #4 of 44 (permalink) Old Jun 8th, 19, 8:13 PM Thread Starter
Tech Team
 
Join Date: Aug 2018
Posts: 288
Thanks
I should have mentioned I use either 93 ethanol free 50/50 w/airplane gas, lightly leaded, or 93 w/Race Gas Concentrate.

383, MSD 8360 and Holley 750 DP, deleted progressive linkage.

This is after driving around town today.
Reelysalty is offline  
post #5 of 44 (permalink) Old Jun 8th, 19, 8:54 PM
Tech Team
Harry
 
Join Date: Jan 2011
Location: Los Angeles
Posts: 296
Re: Any Plug Readers Here ?

the bright orange color tan is from the octane additive. I freaked out when I first saw it, but, it means nothing, it is just a by product of the additive.

Harry
1970 Chevelle SS396 (408), Fathom Blue,
Original Block & Forged Crank, KB Pistons, Edelbrock 6045 Heads,Comp Cam 292H, March Serpentine, RPM AirGap,750HP,100hp Nitrous
A/F Wideband,Tremec TKO 600, 12 bolt,
30 spline Moser Axles, Richmond 3:73's, Hotchkis control arms, swaybars, springs, Wilwood 12" rotors D/S, 4 piston calipers
hjdca is offline  
post #6 of 44 (permalink) Old Jun 10th, 19, 9:43 AM
Senior Tech Team
Rick
 
Join Date: Nov 2006
Location: Langhorne, Pa
Posts: 4,165
Re: Any Plug Readers Here ?

If that is after just driving around for a day then it looks aweful in my opinion. In a day of driving it should look like it just came out of the box.

1967 Chevelle Malibu 4 door


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


The 7.99 at 173mph pass:


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


8.02 at 171mph:


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Calculated Risk is offline  
post #7 of 44 (permalink) Old Jun 10th, 19, 4:57 PM Thread Starter
Tech Team
 
Join Date: Aug 2018
Posts: 288
Quote:
Originally Posted by Calculated Risk View Post
If that is after just driving around for a day then it looks aweful in my opinion. In a day of driving it should look like it just came out of the box.
“This is after driving around town today”
Reelysalty is offline  
post #8 of 44 (permalink) Old Jun 10th, 19, 5:18 PM
Tech Team
Chris
 
Join Date: Jul 2007
Location: Kelowna, BC, Canada
Posts: 954
Re: Any Plug Readers Here ?

Looks to me like you should put it back in a keep driving. Any driveability issues or just trying to dial it in a bit?

1969 Beaumont
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

1977 Bronco
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

The rest are boring responsible adult vehicles not worth mentioning.
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Chris27 is offline  
post #9 of 44 (permalink) Old Jun 10th, 19, 7:01 PM Thread Starter
Tech Team
 
Join Date: Aug 2018
Posts: 288
Quote:
Originally Posted by Chris27 View Post
Looks to me like you should put it back in a keep driving. Any driveability issues or just trying to dial it in a bit?
Plugs were fine, no engine issues then I re-jetted with bigger jets that came with Holley HP center section.

Plugs turned black. I went back to old jets in new HP body. Changed out plugs. Drove around town. Pink tint caught me off guard. Hadn’t noticed pink in past. I rotate between half 93/half airplane fuel and 93 w/Race Gas Concentrate. Luck of the draw I had just mixed RGC for test.

hjdca confirms what “pink plugs” Google search suggested

All seems fine although I’d rather word not get out about my “Pink Plugs” 😁
Reelysalty is offline  
post #10 of 44 (permalink) Old Jun 10th, 19, 8:07 PM
Tech Team
Chris
 
Join Date: Jul 2007
Location: Kelowna, BC, Canada
Posts: 954
Re: Any Plug Readers Here ?

Quote:
Originally Posted by Reelysalty View Post
Plugs were fine, no engine issues then I re-jetted with bigger jets that came with Holley HP center section.

Plugs turned black. I went back to old jets in new HP body. Changed out plugs. Drove around town. Pink tint caught me off guard. Hadn’t noticed pink in past. I rotate between half 93/half airplane fuel and 93 w/Race Gas Concentrate. Luck of the draw I had just mixed RGC for test.

hjdca confirms what “pink plugs” Google search suggested

All seems fine although I’d rather word not get out about my “Pink Plugs” 😁

I'm sure searching "pink plugs" in google might not return the results you're looking for. Assuming you're looking for something spark plug related.
Some things are better kept private
Pioneer4x4 likes this.

1969 Beaumont
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

1977 Bronco
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

The rest are boring responsible adult vehicles not worth mentioning.
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Chris27 is offline  
post #11 of 44 (permalink) Old Jun 11th, 19, 7:33 AM
Senior Tech Team
jeff
 
Join Date: Jan 2008
Location: yukon ok.
Posts: 4,814
Re: Any Plug Readers Here ?

I would keep an eye on the plugs and watch for faint lines on the outside where the steel nut area meets the white portion of the plug.
Faint lines going up and down the spark plug..those will be telling you it is misfiring.
Faint carbon tracking.
Tighten the gap if you see that.

I run my HEI sparked plugs at .035".
Here is a set of 4 from the right bank of my 906 vortec head 357" that runs a much modified 750 double pumper #4779.
These are AC 44 heat range plugs and been in the vehicle since June of last year.
AFR is 12.8 at wide open throttle and 13.5 was the last idle AFR I got.
Attached Thumbnails
Click image for larger version

Name:	001.jpg
Views:	56
Size:	102.5 KB
ID:	595494  
jeff swisher is offline  
post #12 of 44 (permalink) Old Jun 11th, 19, 7:39 AM
Tech Team
Rick
 
Join Date: May 2017
Location: Bossier City, Louisiana
Posts: 626
Re: Any Plug Readers Here ?

Please know that "airplane fuel" is likely 100 octane Low Lead AVGAS. But its actually more lead than the best Sunoco 260 fuel that money could buy in 1970. A lotta' lead.

So some of that could be lead deposits and I would not worry about it.

Rick

Sent from my SM-G965U using Tapatalk

1970 El Camino under Reconstruction - 5.3L LS VORTEC Engine and 4L60E Transmission
B52bombardier1 is offline  
post #13 of 44 (permalink) Old Jun 11th, 19, 8:15 AM Thread Starter
Tech Team
 
Join Date: Aug 2018
Posts: 288
blob:https://www.chevelles.com/dcdbc538-0...8-658003a56eca

WOW ! 👍

B52bombardier1, airport guy said octane was 110 or so and airplane gas is figured differently than car gas. It’s tinted light blue. Thanks for the explanation of “low lead”

I don’t hear so well (used to be married, haha) and am afraid of spark knock especially the modern ping which isn’t so loud. IMO, some RGC or airplane gas is cheap ins on a 4 speed car, 37* all in at app. 1700.
Reelysalty is offline  
post #14 of 44 (permalink) Old Jun 11th, 19, 8:17 AM Thread Starter
Tech Team
 
Join Date: Aug 2018
Posts: 288
WOW ! 👍. Is in reference to pic of Jeff swisher’s plugs.

For some reason pic didn’t copy.
Reelysalty is offline  
post #15 of 44 (permalink) Old Jun 11th, 19, 12:25 PM
Senior Tech Team
Rick
 
Join Date: Nov 2006
Location: Langhorne, Pa
Posts: 4,165
Re: Any Plug Readers Here ?

Quote:
Originally Posted by Reelysalty View Post
“This is after driving around town today”
What i'm saying is that if that is just from driving around for a day, it is way rich. They should look like they came out of the box after a day of use.
427L88 likes this.

1967 Chevelle Malibu 4 door


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


The 7.99 at 173mph pass:


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


8.02 at 171mph:


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Calculated Risk is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevelle Tech 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. Note, you will be sent a confirmation request to this address.

Email Address:
OR

Log-in










Thread Tools Search this Thread
Show Printable Version Show Printable Version
Email this Page Email this Page
Search this Thread:

Advanced Search
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 On
Pingbacks are On
Refbacks are On

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