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First F**K Up on my car... help please :(

RTFGTR

By RTFGTR,
in Victoria

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RTFGTR Proficient

RTFGTR

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Tonight my nightmare is a reality... it was only a matter of time????

Picked up my car from getting a service today and drove to my basketball game tonight... everything is sweet - better than good. It has never run so smooth and glide through the RPM's.

So with this and a whole lot of adrenalin running through the veins from the b/ball game I give it nice boot coming out of the stadium and down the Hwy about 30min. ago. When I hit 1 bar of boost or around 6300rpm all kinds of shit starts happening. Revs are going up and down, power on then off, feels like the rev limiter is kicking in early.. I cant get the car to boost above 1 bar... sounds real shit and feel's like somthing is about to blow up.

Any ideas??

Easy fix?

Besides that it still drives great up to 1 bar of boost ;)

"See what happens when you play rough with your toys!" (mum... about age 5 or 6)

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RTFGTR Proficient

RTFGTR

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A. Just general service.. oil (MUTOL 8100), gearbox oil, oil filter, pressure test cooling system, clean air filters (I do have dodge filters though) - Just take it to the place next door to me. He has been doing my cars for years.

B. No plugs replaced. NGK plat. plugs still good.

Sound expensive???

Talking to my brother-in law he thinks it could be a fuel cut defender or something???

Any other ideas. Anyone willing to have a looks'ie. I'm on holidays and it christmas soon and dont really want to splerg on the car in December.

Roy Grand Master

Roy

Posted
Posted

You will have to have a look at what ecu you are running, a better description of what is happening at what revs etc etc. Look on the bright side, electrical dramas are usually cheap to fix, if not a little frustrating to identify. Better then a spun bearing or a rod out th eside of the block:)

Perhaps a mod list?

RTFGTR Proficient

RTFGTR

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... doesnt matter what u got done... its what THEY did to it when taking it round the streets ;)

Nah... don't think so. As I said it is litterally next door to me and I was home all day while he had the car and I can hear my car getting tharshed from about a block away (when my brother-in law drives it) + the dude is old and I don't think he would be into thrashing the car around.

Soon as I picked it up this afternoon I did take it around the block and picked up the GF from Chaddy at about 6pm also... all was good including above 1 bar of boost???

RTFGTR Proficient

RTFGTR

Posted
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You will have to have a look at what ecu you are running, a better description of what is happening at what revs etc etc. Look on the bright side, electrical dramas are usually cheap to fix, if not a little frustrating to identify. Better then a spun bearing or a rod out th eside of the block:)

Perhaps a mod list?

Spoke to you @ B Battle on the weekend (keep it quiet... but I haven't checked what ECU it's running yet ;)) My bad...

Keeping my spirits high hoping it's a elec. problem or something that won't cost over $500 to fix.

I will give you all I can now anyways:

Trust T78 33D kit

Trust F/Mout Intercooler

Twin Filters with AFM's (that's 2 AFM's)

Oil Cooler

GReddy Profec B Boost controller (analog type...buttons)

ECU... will let you know tomorrow :D

Standard CAT... on my to do list.

Other stuff but I don't think that they would be the cause of the problem..

T/Timer

RSM (dodgy unit... but it works)

West Grand Master

West

Posted
Posted
Tonight my nightmare is a reality... it was only a matter of time????

Picked up my car from getting a service today and drove to my basketball game tonight... everything is sweet - better than good. It has never run so smooth and glide through the RPM's.  

So with this and a whole lot of adrenalin running through the veins from the b/ball game I give it nice boot coming out of the stadium and down the Hwy about 30min. ago. When I hit 1 bar of boost or around 6300rpm all kinds of shit starts happening. Revs are going up and down, power on then off, feels like the rev limiter is kicking in early.. I cant get the car to boost above 1 bar... sounds real shit and feel's like somthing is about to blow up.  

Any ideas??

Easy fix?

Besides that it still drives great up to 1 bar of boost ;)

"See what happens when you play rough with your toys!" (mum... about age 5 or 6)

Sound more like an electrical faults somewhere.

Roy Grand Master

Roy

Posted
Posted

Yeh rip off that kick panel and see what you see:)

With a T78 you hope if its a std ECU it will at least have a workshop sticker on it, or it could be a HKS F-Con or Pfc?!?!?!?!?

Tell you what, the car is gone, perhaps you want to swap for a silver GTST:)

What do you mean by sounds like it is about to blow up, bad miss, or engine drops a few thousand revs????

RTFGTR Proficient

RTFGTR

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Yeh rip off that kick panel and see what you see:)  

With a T78 you hope if its a std ECU it will at least have a workshop sticker on it, or it could be a HKS F-Con or Pfc?!?!?!?!?

Tell you what, the car is gone, perhaps you want to swap for a silver GTST:)

What do you mean by sounds like it is about to blow up, bad miss, or engine drops a few thousand revs????

Lots of bad miss's (spelling)

With foot on the gas it does not drop a few thousand just jumps back and forth in the 5500 to 6500 range (like the rev limiter @ 9000 rpm or there abouts... never get a good chance to look at that RPM ;))

RTFGTR Proficient

RTFGTR

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might sound obvious, but check for vacuum leaks or hoses that may be blown off :)

sometimes the most obvious solutions are the fix ;)

Might sound obvious... but I have not checked yet and did not think of it- it is dark and I have no good lights to check (no garage for me :D)

I will also check this in the morning along with the ECU (how embarrasing.. after 2 months of having the car)

Thanks for the reply.

Can the car still boost to 0.6 or 0.9 bar if the hose is blown off? Because it's still sweet as up to 1.0bar of boost.

GTRgeoff Grand Master

GTRgeoff

Posted
Posted

Robin, sounds a bit like plug gap is too wide at that boost. My suggestion, put the exxy plugs in a box and put them away, and get NGK copper 7 heat range and gap to 0.76 - 0.8mm. From your description it sounds like the boost is limiting spark. At worst it could be a coil pack.

Roy

I have a lovely 94 black auto R33GTSt that would love you to do your thing and turn it into a drag queen :D

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