HELP!!! Turbo clearance issues. - Boost Forum

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HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 12:56 AM
OK, I'm running a 16G turbo, and am using the EBay manifold that everyone has been giving good reviews. My problem is that the turbo WILL NOT fit on the vehicle. The aluminum compressor housing keeps hitting the "water box" on the back of the motor. By water box, I mean the piece where the tube runs into from the water pump. Do I need to fabricate a spacer, or am I doing something wrong??? I appreciate any helpful hints that anyone could provide.




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: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 3:14 AM
Well, I'll give you the old Polish addage we like to use at work... "Bigger hammer, more grease..."

Which way are you facing the compressor housing, to the passenger or driver side? I don't have a 3rd gen engine bay immediately available to look in and remind myself where everything goes, but does it fit better if you turn the turbo completely around? And have you unbolted the compressor housing and tried to clock it to get it to fit better?




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Re: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 5:10 AM
Yeah, youll have to rotate the turbo upside down and put it back right side up when you get it back there by the manifold.. My GT30 was a biiaatch to put back there, didnt have to clock it, we just had to turn it up side down so the compressor inlet was facing down, then we turned it right side up once we got it back there.. Just play with it more, youll get it..











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Re: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 7:26 AM
If it is close like the Hahn set up they machined the housing to clear.
Take a look at the left side of the pic.




Re: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 7:30 AM
I ment RIGHT !!! Sorry



Re: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 8:37 AM
OK, I have unbolted the housing and re-clocked it and everything, still no dice. As far as the turbo mounting goes, can you really turn it around backwards??? (Exhaust outlet on drivers side) I tried it and it seems to fit, but the turbo is like less than an inch away from the firewall. Has anyone ever ran their setup like this before, and if so, what did you do about heat???

I'm kind of leery about machining or grinding the compressor housing to get the turbo to fit, but if it is the only option, I guess that it will have to do. How much would be considered "safe" enough that I can grind off???

Again, I really appreciate everyone's help and look forward to anymore helpful suggestions.




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: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 10:42 AM
Roofy wrote:OK, I have unbolted the housing and re-clocked it and everything, still no dice. As far as the turbo mounting goes, can you really turn it around backwards??? (Exhaust outlet on drivers side) I tried it and it seems to fit, but the turbo is like less than an inch away from the firewall. Has anyone ever ran their setup like this before, and if so, what did you do about heat???

I'm kind of leery about machining or grinding the compressor housing to get the turbo to fit, but if it is the only option, I guess that it will have to do. How much would be considered "safe" enough that I can grind off???

Again, I really appreciate everyone's help and look forward to anymore helpful suggestions.


my exhaust housing is on my drivers side. My flange is directly in the middle too



LE61T PTE6262 Powered

Re: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 12:34 PM
your compressor should go to the drivers side, then nothing will hit the water pump. just make sure you clock the oil drain straight down.


HP Tuners | Garrett T3/T04B | 2.5" Charge Pipes | 2.5" Downpipe | 650 Injectors | HO Manifold | Addco front/rear | Motor Mounts | HKS SSQV | Spec stage 3 | AEM UEGO Wideband | Team Green LSD | FMIC | 2.3 cams | 2.3 oil pump swap | 280WHP | Now ECOTECED

Re: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 12:37 PM
The flange for my turbo is sitting more towards the driver's side. I can rotate the turbo around and it will fit, but it seems like the exhaust sits too close to the fuel and heater core lines.



This is the manifold I am using.




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: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 4:38 PM
Roofy wrote:The flange for my turbo is sitting more towards the driver's side. I can rotate the turbo around and it will fit, but it seems like the exhaust sits too close to the fuel and heater core lines.



This is the manifold I am using.


thats why you move them, or insulate them like my shop did



LE61T PTE6262 Powered

Re: HELP!!! Turbo clearance issues.
Tuesday, May 15, 2007 6:34 PM
mine is like that



http://aemecotec.monchar.com/

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