I've been doing a fair bit of research lately, so far have been told to use a D cam in my B20 build, with holden 186 pistons which were common to do in the 90s. It is a dissembled engine currently. The head is a b20e, ported heavily.
Specs.
*overbored b20 for holden 186 pistons that the pin slots get machined to be floating.
*8 bolt crank.
*b20e machined down.
*ported head with raised port by the looks of it.
*r sport copy pacemaker extractors.
*45 dcoe webers, ported manifold.
*chev lifters and pushrods to be obtained
*stock rocker arms, looking to make sure they are 1.5, most are under 1.5 ration
The goal is to be a decent power b20 for a car weighing in at 1000~kg.
I've been told the D cam is not a bad road cam, things I've found say its quite aggressive in ramp angle and will damage the lifters faster. I would prefer to get a more modern style camshaft that will allow the engine to be less peaky.
Chris, who has had a b20 with similar spec, ran the 424. He says it had no power until 2200rpm.
From the other forums, and the turbobricks cam list and this one.
http://www.1800philes.com/ianr/_superlist_grinds.html
http://www.turbobricks.com/resources.php?content=camspec
I've found the isky cam from ipd is not too great outside of the states. I like the look of the enem k17 and the tighe 640, not too big, but more duration seems to work well based on reviews in the states. Im not keen on a too peaky motor.
So, b20 guys with good running motors, any experiences?