spiderpigcity Posted February 3, 2008 Share Posted February 3, 2008 i was coming home tonight and i have lost all boost. i still have negative boost but no boost above 0 bar. power is shit car wont go above 80 mph really slow. turbos arnt spinning at all and dump valve has stopped working. i am looking for a pipe that has popped off but cant find anything. any ideas? regards matt Quote Link to comment Share on other sites More sharing options...
Nic Posted February 3, 2008 Share Posted February 3, 2008 The usual culprit is one of the lower intercooler hoses that has blown off, also check for splits on the IC hoses. Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted February 3, 2008 Author Share Posted February 3, 2008 not blown turbos then?> engine is running fine, no engine check light, everything else seems ok. Quote Link to comment Share on other sites More sharing options...
Nic Posted February 3, 2008 Share Posted February 3, 2008 not blown turbos then?> engine is running fine, no engine check light, everything else seems ok. You usually know when a turbo blows, as the turbine exits the exhaust with a bang and a big cloud of smoke. A blown IC hose is a much more common occurrence. Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted February 3, 2008 Author Share Posted February 3, 2008 nic, would you replace all rubber hoses with silicone ones? some have been change but ithers are still the original rubber ones. regards matt Quote Link to comment Share on other sites More sharing options...
Ric Posted February 3, 2008 Share Posted February 3, 2008 will be a popped off/split pipe check some more Quote Link to comment Share on other sites More sharing options...
Nic Posted February 3, 2008 Share Posted February 3, 2008 Samco do a replacement Silicon IC pipe kit for the Supra. I'd personally replace the IC hoses with aluminium hard pipes though, I never had any problems once I'd swapped to hard pipes. If you'd like details let me know. Quote Link to comment Share on other sites More sharing options...
gaz1 Posted February 3, 2008 Share Posted February 3, 2008 probably as nic says intercooler pipe had this on mine a few times, change to mikalor clamps Quote Link to comment Share on other sites More sharing options...
R Black Posted February 3, 2008 Share Posted February 3, 2008 I think i've read that one of the intercooler pipes is susceptable to popping off? I'm sure someone here knows for sure. ***SORRY DID'NT SEE THE DUPLICATE THREAD *** Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted February 3, 2008 Author Share Posted February 3, 2008 I think i've read that one of the intercooler pipes is susceptable to popping off? I'm sure someone here knows for sure. ***SORRY DID'NT SEE THE DUPLICATE POST *** i have checked everything this morning. it ticks over fine and when i rev it just normal exhaust gas coming out of back , no blue or black smoke. last time the intercooler pipe came off the turbos whistled away but this time the turbos arnt even coming on. any more thoughts before spend another hour looking for split pipes etc. Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted February 3, 2008 Author Share Posted February 3, 2008 probably as nic says intercooler pipe had this on mine a few times, change to mikalor clamps i have checked everything this morning. it ticks over fine and when i rev it just normal exhaust gas coming out of back , no blue or black smoke. last time the intercooler pipe came off the turbos whistled away but this time the turbos arnt even coming on. any more thoughts before spend another hour looking for split pipes etc. Quote Link to comment Share on other sites More sharing options...
gaz1 Posted February 3, 2008 Share Posted February 3, 2008 have you fmic or smic, it sounds like you have a massive air leak if your getting no positive boost at all, if not your tubo,s have gone, check in your tailpipe for any tell tale signs, small metal shards, Quote Link to comment Share on other sites More sharing options...
Steve Posted February 3, 2008 Share Posted February 3, 2008 Was it boosting then you just lost all power? Did you get a cloud of black smoke out the back when it went? Quote Link to comment Share on other sites More sharing options...
Steve Posted February 3, 2008 Share Posted February 3, 2008 Why do you need 2 threads for the same topic? Edit: Thread now merged Quote Link to comment Share on other sites More sharing options...
_Shane_ Posted February 3, 2008 Share Posted February 3, 2008 had a dream last night the same thing happened to my supra lol intercooler pipe cam off Quote Link to comment Share on other sites More sharing options...
Alex Posted February 3, 2008 Share Posted February 3, 2008 Threads merged Supra Chat thread deleted. ...carry on Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted February 3, 2008 Author Share Posted February 3, 2008 have you fmic or smic, it sounds like you have a massive air leak if your getting no positive boost at all, if not your tubo,s have gone, check in your tailpipe for any tell tale signs, small metal shards, hi gaz , stuck my arm in the back box just carbon no metal shards. is there any pipes that i need to check that are out of sight, that i might have missed? all the intercooler pipes seem to be in tact. regards matt Quote Link to comment Share on other sites More sharing options...
Jake Posted February 3, 2008 Share Posted February 3, 2008 Check the intercooler pipe that is down the side of the radiator, between the rad and the battery but lower than the battery. That's where they often pop off if you're running more boost than stock. The other place is inside the wing on the drivers side, where the pipe goes through the inner wing and connects to the SMIC. Taking the driver's side headlight out might help you see if the problem is there. Else you'll have to take the wheel arch lining out to have a look. Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted February 3, 2008 Author Share Posted February 3, 2008 Was it boosting then you just lost all power? Did you get a cloud of black smoke out the back when it went? no was doing 70 put my foot down and nothing. i can't figure out. i have negative boost pressure then it rises to 0 bar thats it. know turbos spinning, no smoke out the back or anything. no management light on or anything. been round at my mates garage today and took the intercooler pipes off checked them and replaced them but found nothing. are there any wires i need to check going to any solonoids or anything? Quote Link to comment Share on other sites More sharing options...
R Black Posted February 3, 2008 Share Posted February 3, 2008 When i had my S2, someone on that forum designed a plug that fitted into one of the disconnected turbo hoses, it had a valve on it so you could connect a air hose on it or foot pump, so you could hear where the leak was coming from, without the engine running, is there such a thing for the Sup? Quote Link to comment Share on other sites More sharing options...
mikeyb10supra Posted February 3, 2008 Share Posted February 3, 2008 can you hear the turbos spooling (whistle) when your driving?? whats the boost gauge you have and where in the engine is the pressure feed taken from? Quote Link to comment Share on other sites More sharing options...
tooquicktostop Posted February 3, 2008 Share Posted February 3, 2008 When i had my S2, someone on that forum designed a plug that fitted into one of the disconnected turbo hoses, it had a valve on it so you could connect a air hose on it or foot pump, so you could hear where the leak was coming from, without the engine running, is there such a thing for the Sup? I have seen a device used at Marlin Motorsport on my single that fitted over the turbo inlet and air is passed through this and you listen for air escaping, would be difficult with the twin turo set up though Quote Link to comment Share on other sites More sharing options...
spiderpigcity Posted February 3, 2008 Author Share Posted February 3, 2008 can you hear the turbos spooling (whistle) when your driving?? whats the boost gauge you have and where in the engine is the pressure feed taken from? no you cant hear anything. last week when the intercooler pipe came off it sounded like that but this time the turbos arnt spinning at all, and my dump valve has stopped working. it's really pissing me off now cos i have checked all the hoses twice. is there anything electrical that needs checking? blitz boost gauge with profec b digital meter plumbed in on same line. can't check for bits of turbo in my exhaust cos i still have the 1st cat on. they woudlnt have got past that. Quote Link to comment Share on other sites More sharing options...
snake Posted February 3, 2008 Share Posted February 3, 2008 I had the same fault no power, there was no black smoke out of exhaust,it turned out to be a pipe had come off. Quote Link to comment Share on other sites More sharing options...
Paul Whiffin Posted February 3, 2008 Share Posted February 3, 2008 no you cant hear anything. last week when the intercooler pipe came off it sounded like that but this time the turbos arnt spinning at all, and my dump valve has stopped working. it's really pissing me off now cos i have checked all the hoses twice. is there anything electrical that needs checking? blitz boost gauge with profec b digital meter plumbed in on same line. can't check for bits of turbo in my exhaust cos i still have the 1st cat on. they woudlnt have got past that. Alright mate, take the 1st cat off and see if you have bits of your turbos in there, that'll soon tell you if your turbos are blown. Quote Link to comment Share on other sites More sharing options...
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