Piston Rings or Ring Lands? need some help guys

[E7-S14]

i have an N/A SR and i boosted it.

after a hard launch i came to a stop and my car idled bad and i noticed loss in power and a slower spool time.

we did a comp test and the results12012090120

put oil in cyl 3 and it shot up to 150...

the car runs fine except for what sounds like a vacuum leak and a loss in power and spool time, and my crankcase gets pressurized blowing oil out of my dipstick which are signs of rings or ring lands.

my fuel management was..* sigh*.. afc tuneand i was running sock fuel pump, which i had planned to replace the following weekend.my dyno tune read a tad lean on top end and i beat on it anyway.

so this was my fault.. i admit that.but im not sure which it is.

i hope to drive the car for another month the way it is and pick up a KA and build the SR

any help would be much appreciated.i want your opoinoins on which it could be.thanks

[Hijacker]

shot rings. Melted ring lands tend to not regain compression when you put oil in the cylinder

[E7-S14]

shot rings. Melted ring lands tend to not regain compression when you put oil in the cylinder

ok so shot rings.is there anyway for them to re-align at all? or just shot/done?

i was told to put thicker oil in my motor. would that work?

and with shot rings.it should be ok to drive to car for another month or so right?

[Hijacker]

Bad rings have to be replaced. And I would do it sooner than later. If you wait, you can potentially damage the motor more.

[jr_ss]

Yep, it needs to be torn down and honed. Along with new rings slapped on the OE pistons if they are still good. You're comp is low as it is on all the other cyl. It should be up around 150ish.

Get rid of the AFC and tune your car the real way, that is probably the number one cause for the failure...

[E7-S14]

really?

its an S14 N/A SRcompression is supposed to be higher on all 4?

i figured since they were pretty much the same on the other 3 it was ok.i dont think comp is the same on a turbo SR as it is a N/A SR.

turbo SRs are around 150 in teh shape they are in today and KAs should be around 180 right.

so then this being N/A it should be closer to the KA.so then i do have a problem.

aint that a B****

i hope it lasts for another month.gotta find a KA fast.

[OutToWinPAHC]

Seeing its NA I would expect higher comp the the DET

[Hijacker]

120 is within spec I think, but it the low side of spec. Given the probably age of the motor, I'm not surprised to see numbers that low. However, since you'll have to replace at least one piston's rings, you should do all of them. There's no reason not to.

[hungryjoseph]

is 120 within spec for the na sr? i also agree with rings, i had a cracked ringland and i only got a 30 psi increase. don't drive it anymore than u need to, it will get worse

[spooled240]

My ka is around 150ish, 180 is perfect/new. 120 seems really low.

I burned up my 4th cylinder not too long ago for unknown reasons..it just detonated on that one cylinder one day and left the compression down to 95psi. It blows oil out the PCV hose and out through my oil drain making an oily mess =/ I'm gonna take the head and oil pan off, flex hone the cylinder and slap new rings on and see if that works.

[RCCC_DRiFteR]

i have an N/A SR and i boosted it.

after a hard launch i came to a stop and my car idled bad and i noticed loss in power and a slower spool time.

we did a comp test and the results12012090120

put oil in cyl 3 and it shot up to 150...

the car runs fine except for what sounds like a vacuum leak and a loss in power and spool time, and my crankcase gets pressurized blowing oil out of my dipstick which are signs of rings or ring lands.

my fuel management was..* sigh*.. afc tuneand i was running sock fuel pump, which i had planned to replace the following weekend.my dyno tune read a tad lean on top end and i beat on it anyway.

so this was my fault.. i admit that.but im not sure which it is.

i hope to drive the car for another month the way it is and pick up a KA and build the SR

any help would be much appreciated.i want your opoinoins on which it could be.thanks

HHhmmmMM...I've been thinking for awhile now that maybe m rings were taking a poop. I know it smokes at high RPM which could definitely be the T25 I payed $20 for. But I'm gonna do a comp test and swap to my HKS turbo and hopefully it'll resolve that issue. But I noticed oil coming out of my dipstick also...but the O-Ring is shot on my dipstick also

[jr_ss]

If your blowing your dip stick out of it's tube, regaurdless of the o-ring condition, you have excessive blowby. The resistance you feel pushing the oil dipstick into the tube should be enough to hold it in, in a healthy motor.

[slidestyle69]

its questionable on both the rings or the glands.

Seeing that it doesnt have a smooth tune, detonation could had broken the gland but regardless of all your compression test, you wont really know till you take the piston out. Hijacker said rings but there's no way to tell. I just rebuilt a friend of mine's sr due to low compression in cyl.4 and rings were what i thought it was,we ran the test with the oil it brought the compression up but when i took the piston out, the gland was broken and the piston fell to pieces

[jr_ss]

I'm not sure what a gland is... I'm pretty sure that's something found in the human body and that of other animals.

But regaurdless if it's a ring or a "gland" he needs new rings in the other cylinders...

[E7-S14]

im goinna pick up another S14 N/A SR local to me and drop it in N/A for a while as i build my current motor.

or ill buy a 255 fuel pump and correctly tune the afc with enough fuel to defeat leaning out on top end. and boost it.

cant decide... eitehr way ill have to N/A SRs....

[jr_ss]

Why don't you get a ROM tuned ECU, the same thing is going to happen...

[E7-S14]

Why don't you get a ROM tuned ECU, the same thing is going to happen...

im pretty sure the biggest reason this happened was because i didn't have enough fuel.my stock fuel pump was crapping out..

but im most likely going to leave it N/A.

[freakyjason]

after a hard launch i came to a stop and my car idled bad and i noticed loss in power and a slower spool time...

When you say "idled bad," what exactly do you mean? I think i might have the same problem. I ran my sr lean for a while inadvertently and lately I've been noticing loss of power, rough idle (almost like a slight misfire), and somewhat slower spooling. No oil coming out of the dipstick and i haven't test compression yet.

[RCCC_DRiFteR]

If your blowing your dip stick out of it's tube, regaurdless of the o-ring condition, you have excessive blowby. The resistance you feel pushing the oil dipstick into the tube should be enough to hold it in, in a healthy motor.

And i don't have a oil catch can...I shoudl toss that in today huh??

im pretty sure the biggest reason this happened was because i didn't have enough fuel.my stock fuel pump was crapping out..

but im most likely going to leave it N/A.

And i would spend the $200 on FrSport.com and buiy the AEM Wideband...just m suggestion. i plan to put mine in once I throw in the HKS turbo.