What is everyone's spark plug preference for the m20?ng

General E30 related discussions -
Please put technical questions in E30 Tech Help forum below

Moderator: martauto

dimebag_from_hell
E30 Zone Camper
E30 Zone Camper
Posts: 1494
Joined: Sun Aug 27, 2006 11:00 pm
Location: NORTHERN IRELAND

Post Sat Apr 30, 2016 12:43 pm

Ngk or bosch?
Image

"Service to others is the rent you pay for your room here on earth."
Top
jmc330i
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 6621
Joined: Mon Jan 10, 2005 11:00 pm
Location: Somerset

Post Sat Apr 30, 2016 12:56 pm

I've always used the NGK BPR6ES
James
'91 325i Sport
'93 318i touring 16v
Top
User avatar
reggid
E30 Zone Squatter
E30 Zone Squatter
Posts: 1983
Joined: Mon Jul 11, 2005 11:00 pm
Location: Oz

Post Sun May 01, 2016 1:16 am

NGK handsdown
E30 325is with M20B31
Top
dimebag_from_hell
E30 Zone Camper
E30 Zone Camper
Posts: 1494
Joined: Sun Aug 27, 2006 11:00 pm
Location: NORTHERN IRELAND

Post Mon May 02, 2016 10:17 am

jmc330i wrote:I've always used the NGK BPR6ES
Are they suitable for both high and low comp compression engines?
Image

"Service to others is the rent you pay for your room here on earth."
Top
User avatar
reggid
E30 Zone Squatter
E30 Zone Squatter
Posts: 1983
Joined: Mon Jul 11, 2005 11:00 pm
Location: Oz

Post Tue May 03, 2016 10:23 am

I'd use the bmw recommended ngk zgr5a for low Comp engine though the colder plug bpr6es does work to. The bmw recommended plug has a longer projection
E30 325is with M20B31
Top
dimebag_from_hell
E30 Zone Camper
E30 Zone Camper
Posts: 1494
Joined: Sun Aug 27, 2006 11:00 pm
Location: NORTHERN IRELAND

Post Sun May 22, 2016 4:55 pm

What marking on the engine identify it as a high or low compression?
Image

"Service to others is the rent you pay for your room here on earth."
Top

Return to “E30 BMW Chat”