Hello! Log in or Register   |  Help  |  Donate  |  Buy Shirts See all banner ads | Advertise on TheSamba.com  
TheSamba.com
 
Which Spark plug? Mexican ACD engine with MegaSquirt
Forum Index -> Performance/Engines/Transmissions Share: Facebook Twitter
Reply to topic
Print View
Quick sort: Show newest posts on top | Show oldest posts on top View previous topic :: View next topic  
Author Message
lner JP
Samba Member


Joined: March 09, 2024
Posts: 45
Location: UK
lner JP is offline 

PostPosted: Sat Jun 14, 2025 11:57 pm    Post subject: Which Spark plug? Mexican ACD engine with MegaSquirt Reply with quote

As the title say's can anyone help with which sparkplugs I need, usual W8DRC or BP5ES-A, but with the Meagspark need a resistor and precious metal plug due to wasted spark.

Evey Website I visit just wants me to enter my reg number and they will advise on the correct plug, obviously not going to work well with a 52 year old car.

Cheers
JP
_________________
Stock 1973 GT Beetle in Apple Green
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Wreck
Samba Member


Joined: July 19, 2014
Posts: 1307
Location: Brisbane
Wreck is offline 

PostPosted: Sun Jun 15, 2025 1:48 am    Post subject: Re: Which Spark plug? Mexican ACD engine with MegaSquirt Reply with quote

The ACD should have 3/4" reach plugs in 043 heads .
I'm using Bosch FR7DTC , just a resistor copper tri electrode plug . Speeduino sequential with chev LS1 coils .
They have a 5/8's hex with will make it easier to remove and replace .
Back to top
View user's profile Send private message Gallery Classifieds Feedback
celtune
Samba Member


Joined: January 31, 2010
Posts: 31
Location: Austria
celtune is offline 

PostPosted: Sun Jun 15, 2025 3:54 am    Post subject: Re: Which Spark plug? Mexican ACD engine with MegaSquirt Reply with quote

As Wreck wrote Sparkplugs with 5/8" (16mm) hex are much easier to handle.

NGK BCPR5EIX or BCPR5EIX-11 (same with 1.1mm gap) is the 16-hex Iridium Resistor Plug for your BP5ES-A or BPR5EIX if you want to stay with the bigger 21mm hex.
Back to top
View user's profile Send private message Gallery Classifieds Feedback
lner JP
Samba Member


Joined: March 09, 2024
Posts: 45
Location: UK
lner JP is offline 

PostPosted: Sun Jun 15, 2025 5:39 am    Post subject: Re: Which Spark plug? Mexican ACD engine with MegaSquirt Reply with quote

Thanks guys, I thought that would be easily sorted.

1.1mm is a big gap for a VW?
_________________
Stock 1973 GT Beetle in Apple Green
Back to top
View user's profile Send private message Gallery Classifieds Feedback
mikedjames
Samba Member


Joined: July 02, 2012
Posts: 3291
Location: Hamble, Hampshire, UK
mikedjames is offline 

PostPosted: Sun Jun 15, 2025 9:28 am    Post subject: Re: Which Spark plug? Mexican ACD engine with MegaSquirt Reply with quote

I run exactly the same stock Bosch plugs in my bus with EDIS wasted spark ignition as for a stock ignitiion. Stock gap.. I just left them in there when I switched over. A check after about 12000 miles shows them still OK . Havent changed plugs for a few years.

Leads are Taylor Spiro Pro equivalent. Again the same as I was running on the stock ignition.
_________________
Ancient vehicles and vessels

1974 VW T2 : Devon Eurovette camper with 1641 DP T1 engine, Progressive carb, full flow oil cooler, EDIS crank timed ignition.
Engine 1: 40k miles (rocker shaft clip fell off), Engine 2: 30k miles (rebuild, dropped valve). Engine 3: a JK Preservation Parts "new" engine, aluminium case: 26k miles: new top end.
Gearbox rebuild 2021 by Bears.

1979 Westerly GK24 24 foot racer/cruiser yacht Forethought of Gosport.
1973 wooden Pacer sailing dinghy
Back to top
View user's profile Send private message Visit poster's website Gallery Classifieds Feedback
Display posts from previous:   
Reply to topic    Forum Index -> Performance/Engines/Transmissions All times are Mountain Standard Time/Pacific Daylight Savings Time
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

About | Help! | Advertise | Donate | Premium Membership | Privacy/Terms of Use | Contact Us | Site Map
Copyright © 1996-2024, Everett Barnes. All Rights Reserved.
Not affiliated with or sponsored by Volkswagen of America | Forum powered by phpBB
Links to eBay or other vendor sites may be affiliate links where the site receives compensation.