Murrayc 1 Report post Posted December 2, 2009 Can anyone suggest a good high performance M20 rocker arm thats good for 7000 RPM? Quote Share this post Link to post Share on other sites
*Glenn* 854 Report post Posted December 2, 2009 What have you done or going to do ??.... the rev limiter comes in before 7000rpm Quote Share this post Link to post Share on other sites
CamB 48 Report post Posted December 2, 2009 Can anyone suggest a good high performance M20 rocker arm thats good for 7000 RPM? The Ireland Engineering heavy duty ones are supposed to be ok for 7k and cost about the same as new OEM. I hope they're ok for 7k, since I've got some for the M10. The billet ones from various suppliers are good for more than that. They cost a hell of a lot though... Quote Share this post Link to post Share on other sites
2002 1 Report post Posted December 2, 2009 I've been hitting over 7k with the stock (but new) rockers in my M10. Although I suspect I'm pushing my luck. Quote Share this post Link to post Share on other sites
CamB 48 Report post Posted December 3, 2009 Apparently two factors are important for stock rockers: 1) Having rockers with good castings (people x-ray them) 2) no bouncing off an ignition cut rev limiter. Both of these make sense. OEM x-rayed (you'll need to be registered for the pics I think) http://www.e30tech.com/forum/showthread.php?p=837426 Ireland Engineering x-rayed: http://www.e30tech.com/forum/showthread.ph...t=x-ray+rockers http://www.e30tech.com/forum/showthread.ph...;highlight=xray Quote Share this post Link to post Share on other sites
