AaronJ

So i have a stock block boosted b16. The car ran great and had lots of power, it was half *** tuned ( do to a bad dizzy cap) but i still got on it a couple of times. I noticed the other day the car didn't go into boost when it should have. I took it all the way to 7k and still no boost. Now a few days later the car will not go above -10 vacuum. You can floor it as hard as you want and it just acts like you are half throttle. It is slow as **** too.

The car idles great, runs great, and sounds great, but it just acts like it only goes half throttle. Any help would be greatly appreciated!

DaveF

wow, when was the last time you opend the hood ?

AaronJ

just yesterday about 8 times trying to figure this out. I have no idea what this could be! even bad couplers or ic piping leaks wouldn't cause the car to stay below -10, i cant even get it to 0 on my gauge

DaveF

is the turbo still on there


seriously though, how good of condition is the turbo? when was the last time you had the downpipe off? does the car have a cat on it?

igo4bmx

check the gauge?
can u also try pressurizing your charge piping?

AaronJ

haha, turbo is good, spins at idle. Its not the gauge cause the car is slow as **** (really really slow). And i don't think its a leak thats causeing it because even if the car had NO charge piping on it it would at least hit 0 vacuum right?!?

igo4bmx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AaronJ &raquo;</TD></TR><TR><TD CLASS="quote">haha, turbo is good, spins at idle. Its not the gauge cause the car is slow as **** (really really slow). And i don't think its a leak thats causeing it because even if the car had NO charge piping on it it would at least hit 0 vacuum right?!?</TD></TR></TABLE>

yeah but i was thinking maybe the gauge is really hitting "zero" but the gauge is WAY OFF.
and maybe if the charge piping was leaking, before say you ran 1 psi from the gauge but in fact it's 11psi.
i dunno

IntegraTypeR

iTrader: (1)

what boost gauge are you using? if you gauge is mech what does it read when engine shut off? if not did you check for vac leaks?

Schister66

the only way that this is really possible at all is if your throttle cable is loose....otherwise your engine would at least get to 0 vac. Also, it may be the gauge....

DaveF

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dturbocivic &raquo;</TD></TR><TR><TD CLASS="quote"> does the car have a cat on it? </TD></TR></TABLE>

turbodohcsi

any wierd sounds coming from your head?

civicjdmb16a

what kind of turbo???

AaronJ

No cat, full 3" mandrel with no muff, cat, or resonators. Its not the gauge, trust me. The only way i can describe this is that the car acts like it is 50% throttle when its wide open. Ill check and see if its something as simple as the throttle cable.

8herout

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turbodohcsi &raquo;</TD></TR><TR><TD CLASS="quote">any wierd sounds coming from your head?</TD></TR></TABLE>

now is not the time to ask about his health. j/k sorry

93supercoupe

i say loose throttle cable.

It probably looks fine because the threads for the adjuster prolly just skipped back aways.

Have some one floor and make sure u cant oped the butterfly anymore.

93supercoupe

the only way for a engine not to goto 0vaccum is its not getting the right amount of air.

Rags, mice, and midgets often cause this.

AaronJ

Alright, now the car doesn't start and the plugs are COATED with oile, there is also oil comming out of the exhaust manifold

turbodohcsi

just pull the head off. Its either a completely fubared turbo, valve-ish, or your rings no longer have a use on this earth. The reason why your not hitting zero is compression, you are probably running on 3 maybe 2 cylinders.

93supercoupe

i dont know if taking the head off is going to tell u much.

Either way, it seems ur probleme has more to do with things not described.

drtysohc

boom bitch. sounds like ring lands or a melted piston to me. next time get the car tuned before you beat on it. lesson learned.

havok hybrid

^^^^ what he said.. You broke a piston or two.