VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #11  
Old 05-20-2021, 12:33 PM
koupster's Avatar
koupster koupster is offline
 
Join Date: Dec 2013
Location: SLC, UT (KBTF)
Posts: 299
Default Massive plugs

Maybe this will help.
https://www.aviationconsumer.com/mai...ich-is-better/
__________________
Cheers, David
RV-6A - KBTF
Reply With Quote
  #12  
Old 05-20-2021, 12:41 PM
Steve Melton's Avatar
Steve Melton Steve Melton is offline
 
Join Date: Apr 2011
Location: Cincinnati, OH
Posts: 3,362
Default

yes, that's the photo. I don't have any data but I would guess spark plugs are like most electrical components where the failure rate is higher for infant mortality. once you have a plug that lasts 100 hrs, chances are that it will last until the electrodes wear beyond use. plugs can be used for a long time: less plugs, less chance for infant mortality, maybe less cost overall (aviation vs auto), less environmental impact. clean and rotate them at each oil change or every other oil change, or more.
__________________
Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 900+ for all

Simplicity is the art in design.
I was born an airplane nut. I have no explanation for it.
My Artwork is freely given and published and cannot be patented.
www.rvplasticparts.com

Last edited by Steve Melton : 05-20-2021 at 02:19 PM.
Reply With Quote
  #13  
Old 05-20-2021, 12:55 PM
Ironflight's Avatar
Ironflight Ironflight is offline
VAF Moderator / Line Boy
 
Join Date: Jan 2005
Location: Dayton, NV
Posts: 12,782
Default

Quote:
Originally Posted by Steve Melton View Post
yes, that's the photo. I don't have any data but I would guess spark plugs are like most electrical components where the failure rate is higher for infant mortality. once you have a plug that lasts 100 hrs, chances are that it will last until the electrodes wear beyond use. plugs can be used them for a long time: less plugs, less chance for infant mortality, maybe less cost overall (aviation vs auto), less environmental impact. clean and rotate them at each oil change or every other oil change, or more.
Yes, but if you are using most of the EI systems out there (instead of mags), the spark plug connectors arenít really designed to work very well with aviation plugs. I would also be using aircraft massive electrode plugs if I was still using mags - you have to match the plugs to the ignition system. And yes, you CAN use aviation plugs with EI, and automotive plugs with mags...but both of those configurations are a bit of a kluge....
__________________
Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
Reply With Quote
  #14  
Old 05-20-2021, 01:00 PM
MacCool's Avatar
MacCool MacCool is offline
 
Join Date: Aug 2020
Location: central Minnesota
Posts: 676
Default

The performance difference between massive vs fine-wire aviation plugs might be noticeable in that the the fine-wire version is likely to have a bigger gap/hotter spark. In the auto plug category, I suspect it's negligible, and I've seen that to be true based on decades of tweaking snowmobile engines. In the auto category, Iridium, IMHO, is likely to last longer but provides little, if any, performance advantage. OTOH, I see no disadvantage to using standard-electrode auto plugs if they're going to be pitched every 25-50 hours. As a cost percentage, a set of 4 standard-electrode auto plugs is about the same as one quart of Aeroshell.
__________________
RV-9A, 2011, bought flying
IO-320D1A
IFR certified
AFS 5400/3500, G5, 430W, some other stuff
Reply With Quote
  #15  
Old 05-20-2021, 01:12 PM
crabandy crabandy is offline
 
Join Date: Jan 2010
Location: Ottawa, Ks
Posts: 2,278
Default

I replaced my iridium plugs for my EI at about 300 hours. No mis-fires but the ground wear shown by DanH was noticeable.
__________________
RV 7 500 hours and counting
20 donation done
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 09:08 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.