Super Jet Ada head issues

[Dmac80sc]

I installed an ada head. Didnt check compression before i did it but from a few months back it was like 150 150. So Installed the head and not seeing any compression bump. Its still at 150 150. I got 35cc domes so it should go up to around 185 I am pretty sure.

Question: is the o rings werent seated right I wouldnt get a 150 read right? I havent had it in the water yet but sounds like its running pretty good. Just trying to figure out if my top end is shot and thats why I am not getting a higher reading or the head inst installed right. I installed it once and the rings I guess didnt seat right cause it sounded like a leak.

 

[MileHighJSC]

Is your cylinder stock 61x? oem port timing? Your last sentence is hard to understand.

 

[FlightPlanDan]

No matter what happened.... it's odd that you still got 150-150.

A little grease can help hold the o-rings in place during installation.....But, even if that went wrong ...still 150-150?

Borrow another comperssion tester.

 

[js/sj]

maybe you already had a milled head?

 

[ncbrock]

a milled head should bring more than 150. a fresh stock motor should bring 150

 

[Mark44]

Check squish old and new? I run 31cc domes on a ported 62T 195 compression.

Mark44

 

[munki63]

Throw 33cc Domes in there check squish and as long as your grater then 0.04" you can still run pump gas, If your ported your compression will be a little less, you should be happy your compression is bang on both cylinders, but get another compression tester and check it out