GSlowR

I bought this setup from someone else.. motor/turbo etc.. well I'm starting to think some of the things they said were there may not be there.. but I could just be paranoid..

supposed to be 84mm JE 9:1 pistons, closed deck, mild port, crower turbo cams, valvesprings, retainers and valves..

I got 205 / 200 / 190 / 200

first spark plug was black the last three seemed fine..

any ideas guys?? I'm about to take this motor apart to figure out what the deal is..

reason I am taking it apart was it was overheating when the temps got up to the 90's...

Thanks in advance..

Boostfed

Change the plugs out then drive and recheck it. Also are you doing a compression test with the motor at full operating temp?

GSlowR

talked to boostfed on AIM..

any other ideas guys?

Pullig

thas really high Compression numbers for 9:1 pistons

jdmvtec28

Checking your plugs after drving the car more or less indicates what the car was running like when it was last on. If you are concerned that the car is running rich at higher rpms, you need to shut the car off at the rpm in question, then pull the plug. And that is hella high compression for 9.1. I just rebuild my motor with CP 9.1 pistons with a PR3 head and it was only 190psi... Perhaps look into the whether the injectors are working properly. Also what engine management are you running? Some EMS systems have fuel trim adjustments that are cylinder dependent.

Bailhatch

those comporession numbers are fine.

put in new plugs. see if that same one carbons up. if it does. clean them all or put new ones in and swith the injector from that cyl with another one. run it again and if the poroblem follows the injector that is it. if its still the same cyl then its probably an ignition problem on that cyl.

GSlowR

ya they do seem high.. i'm running hondata s100b

and the car was driven before checking the plugs etc... it's just strange that one is black and the other are ok...

i may look into the injectors cuz maybe the resistor box isn't connected right or is lose somewhere..

Bailhatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GSlowR &raquo;</TD></TR><TR><TD CLASS="quote">ya they do seem high..</TD></TR></TABLE>

nope

GSlowR

Bailhatch, sorry forgot to respond to yer idea you mentioned.. I will try that tomorrow it's 1:30 now.. got work in the morning

thanks

wacktical

i am having problems with my 1st and 4th cylinder...i swapped the injectors from 2 and 3 with 1 and 4 and still 1 and 4 are not working...i checked the plugs to see if it sparking and it does....any ideas...i am running the vafc for now until i get my e manage..is there any settings i need to put on the apex or that has nothing to do with it...also i am missing a elbow pipe for my intercooler so thats not hooked up yet...could that be it? HELP!!!!

Turbocivic94

my 9:0:1 motor compression was 210 across

adseguy

Autozone gauges are craptastic. 200 is perfect and 180 is nominal

Tad

my d15b's usually put down around 200
maybe alil less maybe alil more,


d15b's are 9.3 comp