Just wondering if these numbers seem about right for compression around 11.2:1?
I was bored so I took pics.






[Modified by S&P500ITR, 3:49 PM 1/1/2002]

 

Looks good.

 

That's seem good. That last picture is probably from piston #4 (next to the distributor), mine is also +- 10 psi higher them the rest. How did you do the test? (open throttle?, how many cranks?)

 

Dustin,

Those numbers look real nice.

-kenji

 

Dang Dustin you must of been bored!

Later,

Mike

 

Those numbers look very good. I just had the bottom end rebuilt on my B18c1 and my numbers are 209, 209, 210, 220 with JDM ITR pistons. I was a lil dissappointed. But I didn't floor the accelerator. Why do you have to do a compression check with the throttle open? Would that raise my numbers a lil?

 

I don't know if I was doing it right, but I was at WOT and turned the key for a 5 count (or so). I kept the car in the on position the entire time, all plugs were removed, and injectors were unplugged.

If you thought I was bored taking the above pics, you are going to laugh because I decided to take pics of all my plugs also.

The plugs are out of my car running a skunk ecu
1.
2.
3.
4.

ld plug before bumped compression and skunk ecu




[Modified by S&P500ITR, 5:31 PM 1/1/2002]

 

I think the best to check is keep the battery charging during the test, take out all the spark plugs, fuse of the fuel pump, floor the thorttle and then crank.

 

The open throttle is to make sure you bring as much air as possible to the pistons. It is suppose to give you higher readings. Just make sure to disconnect the injectors before you do it, so you don't flood the engine.

 

Hey, put some never seize on your plug threads, I can see the Aluminium flecks from your cylinder head.

 

Dustin, looks good. plugs do too.

 

its good