nicknack25

Sup guys, so I got this b16a3 for cheap from a friend, neither of us know what mods it has. I know it has skunk works cam gears, but that's pretty much all i know about it. I've tried looking for links that has b16a3 specs, but couldn't find much. I've measured the intake and exhaust cams, but none of the measurements i made were the same as what i found. Not really sure how to measure the duration or lift either.

The measurements of the cams were only measured at the biggest lobe of the cam.

I used these sites as a reference.

http://asian_e.tripod.com/Honda_Engine_Specs.htm
https://honda-tech.com/forums/tech-misc-15/b-series-cam-spec-list-specs-all-%401mm-388612/


Here's a pic of the valve spring with green paint on the top. I think i read that the green paint is to indicate it's from an itr motor? Correct me if i'm wrong.


Intake side. Does it look like it hasn't been touched? or has it been ported?


And here is its measurement.


Here's the cam with the cam gear


Measurement for the exhaust cam was 35.76mm
Measurement for the intake cam was 36.31mm

Can anyone help direct me to a site which might have some information on b16a3s? Or perhaps inform me on how to measure lift/dur. on a cam?

B_Swapped93

That's not how you ID cams http://www.ff-squad.com/tech/temp/VtecCams.htm look at the block stamp and the head casting marks above the #3 exhaust port.

kyden

the ports are untouched. you can see the casting marks on the side.

nicknack25

Yeah, I figured that wasn't how to ID them. Hard to tell if they're 88-91 b16a cams, 92-93 b17 cams, or 94+ gsr cams.. Can you tell?





Also, i know the head is from a 94 pr3-2 head (b16a3) and a matching b16a3 block.

Thanks for the quick response! But i replied late lol

nicknack25

Nice. Thanks!