Overcamming a B16A/B16B?


NZRacerX

NZRacerX

Member
Joined
Mar 31, 2009
Messages
86
So I've heard this term used, in reference to using cams that are too big for the engine. And I kind-of understand what it's about. But it gets me thinking... what are the "biggest" cams people have put into a 1600cc B Series engine, successfully or unsuccessfully? (Yes, I know there's no single determinant of "biggest" with variations in lift, duration, ramp angles etc, but I'm sure you get the gist of what I'm asking).

Just curious to see if anyone has actually hit the point of over-camming a B16A/B16B. What is the engine capable of?
 
It's pretty common to fit the skunk 2 pro 2 cam with the correct supporting valve train to the b16b, anything bigger you might run into valve to piston clearance issues
 
Hmmm interesting. Are the "Pro 2+" in their current catalogue pretty similar to the earlier "Pro 2". Those specs on paper look like:

Intake Duration / Lift: 260° / 12.65mm
Exhaust Duration / Lift: 272° / 11.90mm

Has anyone put anything like Toda C's or Rocket M22X or Kelford C's (or R's) into a 1600 B Series?
 
i had dd tech cams in a b16a last seson going dropping in skunks this season
 
It just pushes the revs up of the power peak. - And if you dont have supporting flow work it means you wont get food results anyway.
 
NZRacerX said:
Hmmm interesting. Are the "Pro 2+" in their current catalogue pretty similar to the earlier "Pro 2". Those specs on paper look like:

Intake Duration / Lift: 260° / 12.65mm
Exhaust Duration / Lift: 272° / 11.90mm

Has anyone put anything like Toda C's or Rocket M22X or Kelford C's (or R's) into a 1600 B Series?
Click to expand...
If it's possible to fit these types of cams in a b18c that is using b16b pistons (which I'm sure lots of people have) then in theory they can be used in a b16b and have room for a head skim to bump the compression ratio up a little without having piston to valve issues?

Has anyone done this?
 
b16 mini said:
If it's possible to fit these types of cams in a b18c that is using b16b pistons (which I'm sure lots of people have) then in theory they can be used in a b16b and have room for a head skim to bump the compression ratio up a little without having piston to valve issues?

Has anyone done this?
Click to expand...
Yes done in a few rally engines in my workshop but careful degreeing of the cams are required.
 
Eoghain said:
Yes done in a few rally engines in my workshop but careful degreeing of the cams are required.
Click to expand...
Which did you do? B18 with pct pistons and cams or skimmed head b16b with cams?
 
B16b with skunk 2 pro 2's, no skimmed heads yet though
 
And they perform perfectly well? So it's mainly just a question of physical fit (clearances etc), and if you can get them in (incl dialled in, tuned), then they'll perform?
 
NZRacerX said:
And they perform perfectly well? So it's mainly just a question of physical fit (clearances etc), and if you can get them in (incl dialled in, tuned), then they'll perform?
Click to expand...
Yup, with throttle bodies and a good exhaust system and running a 4 to 1 mix of standard petrol and 115 octane race there's a car here that makes 209hp
 
You must log in or register to reply here.
Back
Top