M10 info needed!!
Posted: Wed May 14, 2014 11:12 pm
I fancied a hot m10 for the e21 so got the best bits, an e30 head and an e21 2.0 bottom end. Everything on the Internet says this combo will give low compression but they seem to refer to flat pistons. I've definatly got piano top pistons in the 2.0. Will I get a low compression?