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Boost Problems, I've Got Boost But Won't Go

MR SLY

By MR SLY,
in Engines & Forced Induction

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MR SLY Enthusiast

MR SLY

Posted
Posted

hey just a quick question.. i've got a r33 GtsT.. when i'm driving it pulls boost it won't go, it feels like it's holding back... on the boost guage it saying i'm on boost.. but yeah it doesn't go it's like it's lagging.. BUT when i turn my car off then on again, it work's normal it pulls boost then goes good... it only happens sometimes though.. any ideas??? i've checked all hte piping and vaccum it's all good... but yeah does anyone have this sort of problems??

i've got a blitz computer.... yeah it's weird when it happens, at the lights i turn the car off hten turn it back on then it drives normally

i pulled all the plugs in the engine and cleaned it.. even took out the coil packs and cleaned them too...

update.. theres' oil in the last cylinder... and spark plug was BLACK AS!! got new ones and cleaned the oil away... works BEAUTIFUL!!

5 days later... it happened again.. so i checked if there was oil in the cylinder again.. there's none so i cleaned the ends of the spark plugs. now it works good again..!! what the!! again when it did happen, i turn my car off then on again.. it worked normal again..

can't figure it out

The Mafia Grand Master

The Mafia

Posted
Posted

oil in the last cylinder?

Its got bad blow by. If I were you, get it compression tested, and stop boosting in the mean time before you really wreck it.

Sounds like you are going to need a rebuild....

  • 2 weeks later...
rory_kieran Contributor

rory_kieran

Posted
Posted

I have the same problem. I have a R32 GTS-t and just put a new air intake and boost controller to put it to 12 pund but still feels when it boosts not much quicker and it has alot more potential. Any idea's from anyone what this could be. The car is completely stock other than this.

heller44 Mentor

heller44

Posted
Posted
why am i going through oil so quickly.. there's no leak that i can see

Oil isn't going to magically disappear. It can only be leaked out or lost in the cylinder.

Get a compression and leakdown test done, as others have said. But it looks like rebuild time.

rory_kiernan : stock r32 is 10psi? and you've gone to 12psi with not much else done... :blink:

MR SLY Enthusiast

MR SLY

Posted
  • Author
Posted

i've got forged piston and bigger turbo...

it's running good now.. but i happens probably 2/3 times a week.. not all the time when i driving... but it's annoying when it kicks in.. cos it feels like i've lost alot of power, but the boost is there... it's set on 15psi. but when the problems kicks in it only goes to 7psi

  • 2 weeks later...
seriesII Mentor

seriesII

Posted
Posted

Hey Mr Sly, i have the same problem as you at the moment, by boost laggs, but only every now and then, and im only running stock 7psi as well, with a stock ecu at the moment, any one have any idea on this one? r33 series 2 1996, it lags some times on winding up and other times around 5psi, and you can feel the pull then it kicks in, then it pulls then kicks in, its annoying the hell outa me as well, anyone think this a spark plug issue? (i havent checked them yet as been busy, but its the first thing im going to check tomorrow) just got the car back and this happened

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