The build
GSR block no oil squirters
LS crank Rods and GSR pistons standard size
GSR head

the head was planed and pressure tested

The problem

I am running open header right now. I have no o2 censor on the car and the car idles really rough and smokes really bad. So I take the header off and there is alittle moisture in cylinder 1, 2 and 3 are bone dry, and 4 is soaked. I found the same results on the tops of the pistons. I did a compression test and they were 240 across within 5% of each other so am I right to think that this isnt oil getting past anything?

 

anyone?

 

Correct me if I'm wrong but I believe that blue smoke is oil burning and black smoke is fuel. Does it smell like fuel? Perhaps if the smoke is black then its just running too rich causing it to run rough and leave fuel in your cylinders. Are all your plugs gapped the same? Also, if your injector is on for less than 1.7 mili seconds than they begin to loose fuel metering consistency. Why are you running no O2 sensor?

Good luck!

 

ls/vtec problem?
u have a gsr block.....
wtf!

 

I thought this would be considered LS/Vtec because of the LS internals. Yes they do smell like fuel. The reason for no o2 censor is I have a dc 421 header and no exhaust setup currently.

 

definition of an LS/VTEC... LS Block with VTEC head. Advantage of having an LS block would be longer the stroke thus the increase in torque.

Your setup is like starting with a GSR motor but f'en it up by throwing in LS internals...

Your car is probably f'ed up because you have no O2 sensor.

 

uhh dude ls vtec means running non vtec internals in conjunction with a vtec head, this set up is infact a ls vtec setup, any ways yeah you need to get that o2 sensor hooked up

 

thanks alot everyone!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by coronadrinker &raquo;</TD></TR><TR><TD CLASS="quote">uhh dude ls vtec means running non vtec internals in conjunction with a vtec head, this set up is infact a ls vtec setup, any ways yeah you need to get that o2 sensor hooked up </TD></TR></TABLE>

Am I missing something or does it seem illogical to use LS Crank & Rods in a GSR block with GSR pistons and without oil squirters. Why not just do a full GSR build up since you already have most of the components?

 

thats still not a ls/vtec

 

Yes. This is an LS/VTEC. LS block has nothing to do with the stroke, asshats. The rods and crank do. Not to mention bumping compression a little.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B16Drag &raquo;</TD></TR><TR><TD CLASS="quote">

Am I missing something or does it seem illogical to use LS Crank & Rods in a GSR block with GSR pistons and without oil squirters. Why not just do a full GSR build up since you already have most of the components?</TD></TR></TABLE>

He didn't explain this... but this was his stuff to begin with and sold the car/engine. Kid spun main bearing at cylinder 3. Dshowers got the car/engine back and also had an LS engine sitting around. Since the GSR block was fine but the crank was scarred, he just pulled the LS internals out and put them in with new bearings. He did not mess anything up... compression, as he states, is 240 across each cylinder. Why chance the GSR crank if it still has the possibility to spin the same bearing even after micropolishing it? So he made the right decision for the funds he had on hand.

Unfortunately, there seem to be deeper issues at hand. I told him he could use my cat and O2 to see what's up. I just don't understand why it's cylinder 4 doing this.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tha_badguy &raquo;</TD></TR><TR><TD CLASS="quote">thats still not a ls/vtec
</TD></TR></TABLE>

Yes. It is an LS/VTEC. LS block not required. Go find something better to do. Still should have run oil squirters though.

 

Sorry I guess I just misunderstood the whole situation. Just didnt make sense to me at all why someone would do this unless it was the situation as explained.

check the O2 sensor

 

LOL. It's cool. I wasn't going off on everyone. Don usually only states his problem and ignores giving everyone some background. But hopefully we'll get this figured out because he's not too happy with the whole situation.

 

Oil control ring in cylinder 4 was broken.

It was in there polishing the lower cylinder wall up.