Originally Posted by
djmca
I used to run an 18 ZVH with big valve head, kent cam, 4 branch manifold and full stainless exhaust, polished/ported and skimmed head on R6 bike carbs. Id say it made around 130ish
You cant rev any higher than a standard CVH as its the valve springs etc in the head that are the weak link. You dont need to rev that high anyway unless your running a full spec race cam with top end power.
I ran the standard dizzy setup although you will benefit slightly from standalone ecu
thanks for the reply! Not to be rude, but is 130 all? Seems low since my thashed 1.6 cvh efi with nothing but a sportex system and a KN filter made 114 rolling roaded, with a dead MAP sensor.. Bet yours sounded MAD tho!!
I've seen some CVH's rev for around 7500-8000 without valve float, both used standard ford springs, since the aftermarket are sh!te.
I've heart about 2.0 zetec on carbs with 160 bhp out of the box, Does the CVH head kill THAT much performance?