T-Blaze

B4 u ask, I've done a search for this and havn't come up with the same problem..

Setup: Max Rev Kit, 57trm 48ar running AFC hack, 425cc inj.

My turbo was initially spooling at around 3k with full boost at 4k. Over the past few days it starts to spool just after 4k!!! with full boost aound 5.5k?? It feels really slow and doesn't feel as strong as it used to.

The car has been blowing blue smoke out of the exhaust recently only when I floor it. I've been burning a lot of oil as well....

Does any1 have any ideas/suggestions?

TIA

Mase

turbo seals may be shot, but also check for boost leaks.


where did you hook your wastegate vac source up to?

alpha

The first thing I would do is a compression test. It sounds like your rings have gone.

T-Blaze

I'm just waiting to find out where the VAC source is hooked up to...

A local garage did a compression test 2 weeks ago and it was perfectly normal... When u say rings - do u mean piston rings? (sorry I'm still a noobe).

alpha

Yes piston rings. It just seems like this might be the problem to me. You are burning oil and you are loosing a signifigant amount of power from what you said.

T-Blaze

Is there any way of checking this without having to physically getting to the rings?? R there any other tests I can do b4 hand??

alpha

An oldy but goody

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Technician &raquo;</TD></TR><TR><TD CLASS="quote">with the plugs out the engine free spins, so you have less pull on the battery
and starting system, plus you don't have to use 5-6 compression strokes
you should only use 3 to 4 max.

there are two types of compression tests, dry and wet. after you check dry
pour a tablespoon of oil into the cylinders that were low, and retest. if the reading
is higher now, you have worn rings, if the reading stays the same, use a CLT
cyl leak down test, which will measure the leak as a percentage at TDC compression of the cylinder that you are testing
with the CLT hooked up use you're ears to find the air leak
pull the oil fill cap=rings"or melted pistions"
listen in tailpipe=leaking exhaust valve
listen in intake manifold= intake valve
pull radiator cap=compression leaking into water jacket
check adjacent cylinders= head gasket in between cyl
or a cracked head cracked cyl wall,
this way you can tell if it is worth taking apart
shhh don't tell anyone, charge them 5$ haha

[Modified by Technician, 7:29 AM 12/24/2002]</TD></TR></TABLE>

symba

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 0x64 &raquo;</TD></TR><TR><TD CLASS="quote">Yes piston rings. It just seems like this might be the problem to me. You are burning oil and you are loosing a signifigant amount of power from what you said.</TD></TR></TABLE>

I also say you may have a problem with your rings. This would explain the smoke. I'm still learning myself but do you know what the compression numbers were? Did they do a leakdown test also? Maybe you have a hairline crack in the headgasket?

swlabhot

Your VAC source is currently tapped into the PCV which is NOT a good place, thats why I changed mine

T-Blaze

Thanx for letting me know dawg!!!! If there are any other fu*k ups in my install please let me know (Rather than just fixing ur own - beeeeyaaach!!) so I can sort this out once and for all...

SiRkid

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by swlabhot &raquo;</TD></TR><TR><TD CLASS="quote">Your VAC source is currently tapped into the PCV which is NOT a good place, thats why I changed mine </TD></TR></TABLE>

nothing wrong with it there.

swlabhot

I'd already told you many times!! Like I said u gotta stop blazin that sheesha-mj combo it ain't doin u much good

The PCV is not a good place as its a line where oil is present and as a result I had oil leaking from my mbc.