Hello, I've been running a twinplug 2.8-4 for a few years now, it was a process to
put together , I went from 48 dell carbs & unilite distributor @ 9-1 c.r. & smaller cam, to
MS2extra (megasquirt2extra) with sequential injection & ignition 11-1 c.r. & bigger cam
(320* dur. ) with twinplugs
, I've never dyno'ed this motor so I don't know if it makes
more HP , I kinda doubt it , it does give me more torque , which really helps my bottomend with the cam I run,
it runs COOLER , uses less timing ,no more pinging, single plug version I used to run as much as 32* timing =
heat & pinging, I even tried W.I.
(water injection) to much hassle not worth the return, so next option was twinplug
,
Bill D.
sorry I never finished this thread,
Bill's 2.8 -4 Twin Plug Thread, 48x38 twin plug conversion
http://www.914world.com/bbs2/index.php?sho...225696&st=0 comment by jake ;
What you'll find with twin plugs isn't so much more WOT power on the dyno and bigger numbers, but
mostly insane throttle response and unreal torque gains below 4K RPM, especially with the larger bore size
that needs all the help with flame propagation that it can get.