will the motor start up with 80 compression all around?

 

how many times did you let it turn over during the test? four times?

 

atleast 5, yes

 

I've never done a compression test on a maxima but Ive done it on other cars. If compression isn't unusually low in any particular cylinder then it should have good compression. If you do get it running a power balance test will help you locate a weak suspected cylinder. Did you test for everything else like fuel and spark?

 

one with 30psi, and 5 with 90psi, has spark, and fuel pressure , and sprayed in starter fluid and no start

 

did you test spark just against the engine block?

 

Yes..