Im running a b18b block bored .5 over,
B16a2 head,
PR3 pistons, and I'm running 200psi across the board.
I get anywhere from 208psi to 210psi with a leakdown.
I was told this was low, but I don't know what to compare it to.
Is 200psi across the board the correct compression for this setup?
Could it be a bad hone job?

 

Thats more than enough tough to say exactly what u should be looking for but your definatly good to run

 

I built an Ls/Vtec:
81.50mm pr3 pistons
B18b1 Block bored/honed
Balanced rotating assembily
B16a2 Head with blox type b cams and valvetrain
Skunk 2 cam gears
Pro engineering intake and DH racing 69mm tb
RC 310cc injectors and FPR
4-2-1 header with muffler
Cold air intake
9lbs flywheel
gsr transmission
Chipped p28 hondata s100
ACL Bearings
Arp headstuds, rod bolts

This is my whole setup. Do you think 200psi is sufficient?

 

That's not really what a compression test is for. If you want to know the actual compression in your engine there are other ways to go about it. You can use online calculators to guess:

http://www.zealautowerks.com/bseries.html

Looks like your static comp should be around 12.1. As far as the compression test, its main function is to tell you if you are losing comp in a cylinder by comparing the cylinders. It's way more important that readings be consistent than they be a particular value. You'd worry if you got 400 on all cylinders or 120 on all, but 200 is definitely in the normal range, even if it's on the low side.

Edit: you need to keep in mind that the compression test doesn't measure the pressure generated by one compression stroke. Even on your 12:1 car that would only get you to about 150 psi if the valves were completely shut for the whole stroke. The compression reading requires multiple strokes, and it's basically telling you how much pressure the car can keep in the cylinder when you add the pressure you gain from the compression strokes and subtract the pressure you lose from leaking and from valve opening, over engine multiple cycles. Higher lift, longer duration and more overlap on the cams makes compression test numbers drop. I would guess that good exhaust flow would also.

 

Youre looking more for consistency in a compression test. Those are good numbers.

 

ok. good info.