Home > VansAirForceForums

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

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

Prev Previous Post   Next Post Next
Old 12-14-2020, 03:13 PM
Lt Dan Lt Dan is offline
Join Date: Dec 2014
Location: Utah
Posts: 94
Default Experience w/Copper vs Iridium Plugs?

I've done a fair bit of searching and pouring through the forum looking for this data but does anyone have actual anecdotal evidence from running standard automotive plugs and then switching to iridium plugs?

I have an RV-8 with an IO-360-M1B running dual P-mags with automotive plugs. Time to change them out and I am considering switching to iridium based on listening to Mike Busch's very interesting webinar on Diagnosing Engine Roughness, of all things. Sounds like the science suggests that you should be able to smoothly run further lean of peak with them due to less cycle-to-cycle variation resulting from the more even early flame kernel nucleation you get with the spark from iridium plugs.
Highly recommend this webinar it if you haven't listened to it yet.

I know opinions on iridium plugs are quite mixed. Even with swapping them out every 100 hours, you could quickly recoup the additional costs if you are able to smoothly burn, say, a 0.5 gph less on the LOP side in cruise. Wondering if anyone has seen any such results in flight.
08 RV-4
09 RV-8
Reply With Quote

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 06:36 PM.

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.