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| el-ghia |
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as above is it normal for a turbo to stop spinning at idle,its a gt4094 from snort perfomance, If i blip the accelerator it will start spinning and then slowly stop again.just want to makesure it isnt blown or anything as everyones told me its normal because its a big turbo etc
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| MICKYYYY |
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It should be spining regadless of size....
_________________ Wanted Either Capri/Cortina/XY/XW/XR/XT with tough V8 stroker engine, auto, 9inch, upgraded brakes etc[/SIZE][/size][/color] |
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| 93EB |
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Age: 47 Posts: 2486 Joined: 6th Oct 2005 Ride: 93EB Fairmont / BA Falcon XR6T Location: Western Sydney |
On my BA it still spins down for about 15 secs after i turn it off.
Something seems odd with yours. Like mentioned it should always be spinning whilst the cars running.
_________________ 93 EB II Fairmon8 with 17' EL GT's / Clear indicators / H.I.Ds / Sports exhaust / Lowered 2' / K&N / XR6 ECU. Last edited by 93EB on Sun Sep 09, 2012 11:18 am, edited 1 time in total. |
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| chappykg |
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Interesting but I would have thought that because it is driven by the exhaust gas being pushed through the turbo the should even at idle other wise where are your exhaust gas's going.
I was curious so i went out and puller the air cleaner of our turbo and it spins at idle and also when you turn off the engine its spins for a few seconds as well. I would think the size would have anything to do with the fact its not spinning at idle, like I said think about it the exhaust (hot side) is spinning from exhausted gas and the intake side (cold side) is on the same shaft. Unless the exhaust side also doesn't spin at idle. ( the mind boggles) There are a few very smart guys on here I am sure they will be able to answer your question more technically. Cheers
_________________ Turned L.G.AUTOMOTIVE Townsville |
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| el-ghia |
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so this means i got ripped off by a member,it stops spinning at idle but if i turn the turbine by hand it turns freely
_________________ AU Forte Wagon
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| Johnson stroker |
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Time to get your turbo rebuilt.
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| ef_falcon_95 |
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my turbo does the same thing, but i have a bad exhaust leak from the warped manifold.
_________________ El XR6 Turbo |
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| chappykg |
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{USERNAME} wrote: so this means i got ripped off by a member,it stops spinning at idle but if i turn the turbine by hand it turns freely Does it come on boost ok and is it making power? I was that curious I rang a guy who plays with turbos for a living he said- " it's possible if the size of the rear housing it to big for the exhausting gas, but he also said it should move if you just increase the throttle a slight bit" He was surprise to hear about your turbo and said he would have though it would be spinning at idle, he also ask the brand name. He asked this because he has see a Chinese turbo that had a miss match hot size wheel to housing it allowed the gas to bypass the wheel but that turbo was very slow to come on to boost and didn't make power. He thought you need to go see a mechanic that works on turbos and get it looked at ASAP ( could fail and cause damage to the engine) Cheers
_________________ Turned L.G.AUTOMOTIVE Townsville |
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| el-ghia |
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its a garret,if i just tap the accelerator itl spin again and it makes boost but feels very lagy,exhaust housing is quite big 4" dump pipe connects to it
_________________ AU Forte Wagon
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| ToranaGuy |
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Sounds like there is exhaust gas managing to make it past the wheel without spinning it. Exhaust leak, cracked housing, leaky wastegate?
Cheers ToranaGuy
_________________ I am the ToranaGuy!|74 Lh Torana Turbo|78 Hz PanelVan|86 Mighty Boy Ute|93 EB2 Ghia,GT Mockup,5spd,LPGI,Full Leather|2 x EB Xr8 5spd's|{DESCRIPTION}|{DESCRIPTION}|{DESCRIPTION}| |
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| EBXR8380 |
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What are the turbo specs ?? A large turbine housing will do this !!
Plus leaking wastegate.. Retarded timing and turn idle up will assist in spooling turbo .. It could be very lean at idle also... If there's buggerall play in shaft side to side and in out.. There's no oil in compressor or exhaust as smoke ?? It spools ok?? I wouldn't worry too much.. If it has 77mm wheel 76 trim ?? yes it will slow to a stop .. esp with standard-sh cam..
_________________ As in ZOOM 126 edition |
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| el-ghia |
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thank you guys honestly when your only 18 your first build and your turbo stops spinning at idle i thought okay blown turbo,the turbo is very big gt4094 im not sure why so big but yeah.im getting a j3 chip and putting in my 42lb injectors and then should be okay,dont want to drive it with it pinging
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| EBXR8380 |
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{USERNAME} wrote: thank you guys honestly when your only 18 your first build and your turbo stops spinning at idle i thought okay blown turbo,the turbo is very big gt4094 im not sure why so big but yeah.im getting a j3 chip and putting in my 42lb injectors and then should be okay,dont want to drive it with it pinging Whats your total specs?? 42's seem small for turbo size ??
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| el-ghia |
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setup is snort stage 3 kit with gt4094 turbo,4"dump pipe into 3" exhaust.im going to use 42lb with a j3 and keep the boost low till i get a haltech or some sort of computer.ive got a 1.3mm headgasket to put in once the standard headgasket lets go.what do you reckon the 42's will max out at
_________________ AU Forte Wagon
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| chappykg |
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{USERNAME} wrote: setup is snort stage 3 kit with gt4094 turbo,4"dump pipe into 3" exhaust.im going to use 42lb with a j3 and keep the boost low till i get a haltech or some sort of computer.ive got a 1.3mm headgasket to put in once the standard headgasket lets go.what do you reckon the 42's will max out at As an example mate we are using Bosch Xspirt 1000cc (96lb) they are awesome idles great and I don't think we will ever have to worry about maxing them out. I would 46lb might be on until you start to play with boost and as we all do start to add power products it s virus once you start. Cheers
_________________ Turned L.G.AUTOMOTIVE Townsville |
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