GRP engine 乜牌子火咀啱裝及好用？

如題，請各師兄解答

1# hulix

好似要用番ninja/boss/grp 先得

細機用no.5 大機用 no.7

唔該師兄

Many people say GRP engine have to use GRP plugs, but for me, I tried GRP plugs and feel not stable for the idle, so I change to OS P3 and P4

I m using 21 buggy engine race with OS plugs around 110 Deg. and feel good.

This is what I ve tried. Hope the info. is helpful for u.

3# hulix

Many people say GRP engine have to use GRP plugs, but for me, I tried GRP plugs and feel not stable for the idle, so I change to OS P3 and P4

I m using 21 buggy engine race with OS plugs around 110 ...
andrewlau 發表於 2009-9-23 22:04

                               
登錄/註冊後可看大圖

haven't tried OS

but experienced air leak for O'Donnell and Nova plugs, seems like the threads or taper shape don't match the head