General: - turbo swap?

blue2005volvos80 · Apr 26th, 2018, 00:38

I have a question i have a stock 2005 S80 2.5 5 cyl would i be able to put a bigger stock turbo from an other model Volvo. I am new to the Volvo game i would like some help thanks

cheshired5 · Apr 26th, 2018, 09:03

Quote:

Originally Posted by blue2005volvos80

would i be able to put a bigger stock turbo from an other model Volvo

Even if you could, there would be no difference so why bother?

aland · Apr 26th, 2018, 09:22

If yours is the 2.5 TDI (with the cam-driven fuel pump on the right of the engine) then it's actually an VW/Audi engine so you may be better asking on a VAG group.

cheshired5 · Apr 26th, 2018, 09:27

Quote:

Originally Posted by aland

If yours is the 2.5 TDI (with the cam-driven fuel pump on the right of the engine) then it's actually an VW/Audi engine so you may be better asking on a VAG group.

OP has a 2005 so it can't be the VAG engine which was long retired by then.

aland · Apr 26th, 2018, 09:40

Good point. Must be a 2.4 then.

cheshired5 · Apr 26th, 2018, 09:44

Quote:

Originally Posted by aland

Good point. Must be a 2.4 then.

There's no mention of diesel so it could be a 2.5T petrol.

reggit · Apr 26th, 2018, 10:33

Quote:

Originally Posted by cheshired5

There's no mention of diesel so it could be a 2.5T petrol.

He's also in the US according to his profile, so will be petrol as I don't think they got the oil burner.

100K+ · Apr 26th, 2018, 10:54

Iirc the 2.5 t is run on the light pressure turbo. Again I think it runs with a slightly smaller turbo to allow it to spool up faster. I remember reading along time ago the 2.5t was better at certain rev range than the T5 but due to the bigger turbo eventually the T5 wins out. However the turbo will be controlled by the ecu which in the 2.5t will be expecting a small turbo. Thus if a bigger turbo is installed the ecu will need updating, or performance will actually be worse. Additionally the injectors will be different too.
Not an impossible mod. but would think a ecu reprogram would get where you want to be with less hassle.
This was one option I looked at when I was wanting to get a replacement T5 10 yrs ago, and could not find a suitable one then an awd R appeared.
Cheers bob

Apr 26th, 2018, 00:38	#1
blue2005volvos80 jebus take that wheel Last Online: Apr 26th, 2018 00:41 Join Date: Apr 2018 Location: riverside	turbo swap? I have a question i have a stock 2005 S80 2.5 5 cyl would i be able to put a bigger stock turbo from an other model Volvo. I am new to the Volvo game i would like some help thanks __________________ Death is but a door time is but i a window I shall return:

Apr 26th, 2018, 09:22	#3
aland Senior Member Last Online: Jan 17th, 2024 15:41 Join Date: Dec 2004 Location: Luton	If yours is the 2.5 TDI (with the cam-driven fuel pump on the right of the engine) then it's actually an VW/Audi engine so you may be better asking on a VAG group.

Apr 26th, 2018, 09:40	#5
aland Senior Member Last Online: Jan 17th, 2024 15:41 Join Date: Dec 2004 Location: Luton	Good point. Must be a 2.4 then.

Apr 26th, 2018, 10:54	#8
100K+ Premier Member Last Online: Yesterday 16:40 Join Date: Aug 2008 Location: Newcastle	Iirc the 2.5 t is run on the light pressure turbo. Again I think it runs with a slightly smaller turbo to allow it to spool up faster. I remember reading along time ago the 2.5t was better at certain rev range than the T5 but due to the bigger turbo eventually the T5 wins out. However the turbo will be controlled by the ecu which in the 2.5t will be expecting a small turbo. Thus if a bigger turbo is installed the ecu will need updating, or performance will actually be worse. Additionally the injectors will be different too. Not an impossible mod. but would think a ecu reprogram would get where you want to be with less hassle. This was one option I looked at when I was wanting to get a replacement T5 10 yrs ago, and could not find a suitable one then an awd R appeared. Cheers bob

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