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This has got me stumped not sure if its the turbo or a masive exhuast leak i cant find or hear. Ive got a series 1 rb25det in a r32 coupe . i have got it running and its all mint when super nanaing it but as soon as you give it a bit of gas it feels like it wnats 2 scream but just wont boost at all. if you put your foot flat the boost guages reads 14 but doesnt boost at all.if you keep it in vacuum it drives fine just like a de sometimes you can faintly hear the bov but thats it ne ideas b4 i resort to the shop? i have a top mount setup and using a dsr turbo with a chiped ecu set to 14 pound. could wiring havnt something to do with it .

what are you using for boost control?

ecu errors?

Ive got a tial external wastegate with a 10 psi spring and the chipped ecu i have is set @ 14 psi 240 kw on my set up .

sorry for hijacking ur thread lol

i have the same problem but mines in a r33 gtst series 1 its the same sorta problem you say it its tho mine only has a fmic, turbo back exhaust, high flow 3 inch cat, pod filter, exedy brass button clutch, also has a modified factory plenum that is front facing but the problem was there before i got the plenum modified turbosmart boost controller set at 10psi, feels like shit on boost but off boost drives good but its driving me insane i need help lol its like its a na :thumbsup: but it still says its boost and feels it sorta but not as much as when i first brought it. when i brought it it felt quick like real quick boost came on really hard it would spin the wheels in first and second in the dry when coming on boost and in the wet it would spin 1st 2nd 3rd and 4th when coming on to boost in the wet but now it doesnt feel like its coming on at all but says it is lol

sorry for hijacking ur thread lol

i have the same problem but mines in a r33 gtst series 1 its the same sorta problem you say it its tho mine only has a fmic, turbo back exhaust, high flow 3 inch cat, pod filter, exedy brass button clutch, also has a modified factory plenum that is front facing but the problem was there before i got the plenum modified turbosmart boost controller set at 10psi, feels like shit on boost but off boost drives good but its driving me insane i need help lol its like its a na :thumbsup: but it still says its boost and feels it sorta but not as much as when i first brought it. when i brought it it felt quick like real quick boost came on really hard it would spin the wheels in first and second in the dry when coming on boost and in the wet it would spin 1st 2nd 3rd and 4th when coming on to boost in the wet but now it doesnt feel like its coming on at all but says it is lol

can you hear your turbo spooling at all ? you say the problem started at your plenum ? ive got no idea whats causing it my turbos back off and sitting in front of me . does your your turbo shaft spin freely bt if you slightly put presure on when you turn it does it jam up?? ill be so stoked if someone busts out the answer to my prayers

can you hear your turbo spooling at all ? you say the problem started at your plenum ? ive got no idea whats causing it my turbos back off and sitting in front of me . does your your turbo shaft spin freely bt if you slightly put presure on when you turn it does it jam up?? ill be so stoked if someone busts out the answer to my prayers

sorry i ment it started before i had the plenum modified and yes i can hear the turbo spooling up and no not that i can remember but when i spin it doesnt spin for very long like it spins but slows down and stops really quick (its still on the car by the way and its stock)

sorry i ment it started before i had the plenum modified and yes i can hear the turbo spooling up and no not that i can remember but when i spin it doesnt spin for very long like it spins but slows down and stops really quick (its still on the car by the way and its stock)

same kinda buzz with mine spins but kinda cums 2 a quick suden stop . i just pulled it off becasue it was frustrating me . my external wuldnt even open up. im tryn 2 find someone that willl let me borow there turbo to see if that even is the problem. shoudnt mater if they stock or afta market they duin the same shit . does you bov faintly wehn your tryn to boost

Guys, it could also be a boost leak..... that messes with your AFR and makes the car run like crap. check all your pipework from the turbo, making sure its dry and tight.

But if your turbo comes to a hasty stop, then I hate to say... but it sounds like the turbo bearings are on their way out.

-Troy

This has got me stumped not sure if its the turbo or a masive exhuast leak i cant find or hear. Ive got a series 1 rb25det in a r32 coupe . i have got it running and its all mint when super nanaing it but as soon as you give it a bit of gas it feels like it wnats 2 scream but just wont boost at all. if you put your foot flat the boost guages reads 14 but doesnt boost at all.if you keep it in vacuum it drives fine just like a de sometimes you can faintly hear the bov but thats it ne ideas b4 i resort to the shop? i have a top mount setup and using a dsr turbo with a chiped ecu set to 14 pound. could wiring havnt something to do with it .

A blocked exhaust will generate high back pressure and force the wastegate open early limiting the boost you can run. A check of the muffler and cat is a good place to start.

Guys, it could also be a boost leak..... that messes with your AFR and makes the car run like crap. check all your pipework from the turbo, making sure its dry and tight.

But if your turbo comes to a hasty stop, then I hate to say... but it sounds like the turbo bearings are on their way out.

-Troy

lol yeah no boost leaks already have checked that put all new hoses clamps on will the bearings cause it to feel like the boost is barely coming on but still says it is on the boost gauge ? by the way mine is the stock turbo and its loud lol spools so loud but barely goes anywhere

what causes the bearing to go ??

lol yeah no boost leaks already have checked that put all new hoses clamps on will the bearings cause it to feel like the boost is barely coming on but still says it is on the boost gauge ? by the way mine is the stock turbo and its loud lol spools so loud but barely goes anywhere

what causes the bearing to go ??

i have gone over my whole engine . i have a put another intake manifold and stadard plenum on just incase the problem was there. . replaced bov. seal was dodgy leking air . now im confident i dont have any air leaks ive gone ova everything .but were the dump pipe bolts on to the turbo using a v-clamp it slighly leaks but im sure that wouldnt cause the boost bull****. And i still have the same problem . Could it be tps as they are not used but with my ecu i have to wire it in . It kinda boosted lw key today . not proply bt it was like it wanted to kinda strt to take off then just shit itself ? mab spark being the problem . or weak signal to a sensor

hey ,

My bearings were gone in my turbo . Try another turbo and id say ul b sweeeet!!!!!!

ok thats not to good to hear tho i might try another turbo on mine now that i have found out that i have been driving around without a licence for the last 1 1/2 months :P even got a fine for front tyres to worn and they didnt even pick up that i didnt have a licence. til today when i was pulled over grrrr oh well looks like i now will have a fair bit of time to get my car sorta hope my problem is the same as yours

ok thats not to good to hear tho i might try another turbo on mine now that i have found out that i have been driving around without a licence for the last 1 1/2 months :down: even got a fine for front tyres to worn and they didnt even pick up that i didnt have a licence. til today when i was pulled over grrrr oh well looks like i now will have a fair bit of time to get my car sorta hope my problem is the same as yours

After a closer look . Ive pulled mt turbo apart to rebuild it .Got interesting now . Id have a look at your xhuast wheel for some damage as mine is ******up . I aslo have damage to the bushs the shaft spins on so . Buts thats def my problem. turbo def not gna boost with a hacked up exhaust wheel. But my turbo ias off my old motor I blew up so Im not to sure with your deal . def swap turbos

  • 4 years later...
  • 4 years later...
On 6/1/2014 at 1:02 AM, tauri04 said:

hey guys did use ever figure out what it was causs mines doing some weird shit now ??

Yea Revamp,

 

Hey Guys ive got a series 2 R33 gtst 25det ffp all the works but running a standard turbo set up with a reconditioned factory turbo and a boost solenoid running 17psi.

 

i was driving the other night and then went to do a uie with a clutch kick, kicked out went to put my foot down to take off and all i got was vacuum boost, wouldn't pull any boost, vacuums upto 0 from -15.

 

anyone know what could have happened, feels like its driving like a DE my blow off valve dont go off but you can hear the turbo sucking.

 

anyone know before i spend a fortune  on it again?

 

Cheers

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