Turbo does not spin at Idle? - Boost Forum

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Turbo does not spin at Idle?
Friday, April 22, 2011 9:07 PM
I finally finished getting all the oil lines ran for my rear mounted setup. I fired it up for the first time tonight and it does not spin at idle. The car is not mobile yet thus I did not drive it but I did rev it up some and it started spinning but still not that fast. Any advice or is this normal? It is not a ball bearing turbo.


3400 SWAP DONE. 187WHP 212TQ (14.2 @100MPH NA) 240WHP 310TQ (N2O)


Re: Turbo does not spin at Idle?
Friday, April 22, 2011 10:51 PM
What size turbo? Being remote the exhaust gases have cooled down some by the time it gets back to the rear mount. Rear's have a little more lag than a traditional turbo setup from what I've seen people post up. If it makes you feel better the LN2 almost makes the impeller move the T3/T4 at idle on my friends turbo J.





Re: Turbo does not spin at Idle?
Saturday, April 23, 2011 7:37 AM
Its a T3/T4 .63 A/R. Can damage occur because its not spinning at idle?


3400 SWAP DONE. 187WHP 212TQ (14.2 @100MPH NA) 240WHP 310TQ (N2O)

Re: Turbo does not spin at Idle?
Saturday, April 23, 2011 10:42 AM
If its a.new turbo, clearances could be small enough that it'll be stationary at idle. Especially if the oil is cool when its running. Make sure you have good oil flow and return to the turbo. Stationary at idle wont hurt it as long as your oil pressure isn't high. Once you're running and its good and hot, it'll spin.




Currently #4 in Ecotec Forced Induction horsepower ratings. 505.8 WHP 414WTQ!!!
Currently 3rd quickest Ecotec on the .org - 10.949 @ 131.50 MPH!!!

Re: Turbo does not spin at Idle?
Saturday, April 23, 2011 12:42 PM
If its a.new turbo, clearances could be small enough that it'll be stationary at idle. Especially if the oil is cool when its running. Make sure you have good oil flow and return to the turbo. Stationary at idle wont hurt it as long as your oil pressure isn't high. Once you're running and its good and hot, it'll spin.




Currently #4 in Ecotec Forced Induction horsepower ratings. 505.8 WHP 414WTQ!!!
Currently 3rd quickest Ecotec on the .org - 10.949 @ 131.50 MPH!!!

Re: Turbo does not spin at Idle?
Tuesday, April 26, 2011 8:26 AM
normal occurance. my buddy put a super 60 turbo on his 98 sunfire 2200 and at idle the engine couldnt produce enough exhaust flow to spin the turbo.
Re: Turbo does not spin at Idle?
Tuesday, April 26, 2011 9:04 AM
JOE L wrote:normal occurance. my buddy put a super 60 turbo on his 98 sunfire 2200 and at idle the engine couldnt produce enough exhaust flow to spin the turbo.
Heat, or flow??





P&P Tuning
420.5whp / 359.8wtq

Re: Turbo does not spin at Idle?
Tuesday, April 26, 2011 11:23 AM
flow. it wasnt a rear mounted turbo
Re: Turbo does not spin at Idle?
Tuesday, April 26, 2011 9:54 PM
I bought some exhaust wrap today im thinking this is part of the problem not enough heat.


3400 SWAP DONE. 187WHP 212TQ (14.2 @100MPH NA) 240WHP 310TQ (N2O)

Re: Turbo does not spin at Idle?
Tuesday, April 26, 2011 10:44 PM
Couple of my turbo's had done that too. Scared me at the time but when they get a load on them driving down the road they whistle loud.
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