Just got done building ZC...had wrong ecu in for injectors so it was flooding my cylinders with fuel... before i noticed the ecu problem i was looking at everything else...I did a compression test and got these number...Yes WOT and yes i honed cylinders and put ring gap to spec...

8.5:1 SRP pistons...I was thinking since this car is cold as hell(outside in 30 degree weather) and never been started. dont these pistons need to expand and hopefully i will get better numbers. plus the fuel washing down the oil aint good neither... tell me what you think dont be a *****
120
120
120
120

 

any comments that are helpful

 

I would check the compression after it is broken in. Might be more accurate because the rings still might need to be seated

 

thats what i thought...first honda engine build...

thanks for the rply

 

yes if you used forged pistons they expant when they warm up and that will bump your compressin a bit but you gota keep in mind too you used really really low compression pistons contact srp and ask them what numbers you are suppose to be getting

what you really gota look out for is a dramatic change in one of the numbers like
120
120
95
120

than something is really wrong

 

start it run it, turn it off change oil and drive a bit adn then your numbers should be up

 

ak ef9 makes a good point also

 

the problem is starting the car tho. the car will not start, we have tried alot of ****, ecu, messin with the turboedit, timing and firing order. still nothing, the problem is it will not fire, not compression, because like ak said you will get more compression once it is broken in, but it cantnot get broken in sitting in 25 ddegree weather not moving

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91whiteZCrex &raquo;</TD></TR><TR><TD CLASS="quote">the problem is starting the car tho. the car will not start, we have tried alot of ****, ecu, messin with the turboedit, timing and firing order. still nothing, the problem is it will not fire, not compression, because like ak said you will get more compression once it is broken in, but it cantnot get broken in sitting in 25 ddegree weather not moving </TD></TR></TABLE>
is it your car? If it isnt starting and you checked and double checked and triple checked everything than make sure your sensors are all good. Might be a bad sensor that not making it start. just a thought

 

put a stock ecu to check.. maybe a bad bin/burn in TE?

 

Well, if it's not firing, figure out first if you're getting spark and fuel. After that you can pinpoint the problem.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by paopao &raquo;</TD></TR><TR><TD CLASS="quote">Well, if it's not firing, figure out first if you're getting spark and fuel. After that you can pinpoint the problem.</TD></TR></TABLE>
done, spark and fuel are good. we pulled all the plugs and looked down into the cylinder and number 3 was full of gunk and the other 3 were puddles of fuel

also it is not my car it is crix351c's, we are just friends

 

i would say it has something to do with spark, maybe its too weak for the low compression, we got hotter plugs but still nothing. 3 or the cylinders are not ignighting the fuel given to them


Modified by 91whiteZCrex at 12:37 AM 2/11/2006

 

it was initially the burn with t/e but thats been fixed....i bought hotter plugs and will try them today... the firing order had been fucked up because im a dumbass and keep putting it on wrong.. i really think my plugs were severly fucked because of the ecu problem...so...no cels at all though... we will see today im going to make sure this bitch gets broken in for sure..

 

finally got a CEL....16 fuel injector...i think i might have damaged my injector wiring when i put the motor in...ie caught it on something while dropping in...im going to pull off all the electrical tape and investigate...going to soder and heat shrink everything again...make it clean lookin

 

what kind of injectors are you running?

 

dsm 450/s

 

we arent talkin about your wait he wanted to know how big the injector was BOOF!!

 

Theres too much fuel to begin with. Put stock injectors in until after the rebuild. compression should be better after.

 

tyutyutyty