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Turbo swap!

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

slm987
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slm987

Turbo swap!

Post by slm987 » Tue Apr 05, 2016 8:23 am

TL;DR Engine is dying, what would be needed for a swap?

Please no "sell the N/A and buy a turbo," I am aware that it would be less work, but I'm trying to keep this car for 2 reasons. It's my first, and my mom won't let me sell it :lol: . I want to know what all I need and what I would have to do to turbo swap my poor old wagon. The engine is eating a quart of oil about every 1k miles and it's starting to piss me off, I want to swap it because A. I need a new engine anyway. B. POWERRRRR.



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erikv11
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erikv11

Re: Turbo swap!

Post by erikv11 » Tue Apr 05, 2016 8:39 am

You can (A) buy a turbo car and (B) move everything in the engine bay over to the NA car. Wiring harness, engine, exhaust, turbo-related parts of the cooling system, almost everything. Ignition parts, air filter and the battery can stay. Then, except for the details, you are good to go! Like, your car is a 99, and you can't just swap a turbo ECU into a 99, the ECU is electronically married to other modules in the car, you'll have to figure out which modules are tied together and hoe to reprogram them. And the transmission, you will also need a transmission matched to the turbo engine, but that is perhaps optional.

Others may post more, those are the details I can think of off the top of my head.


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

slm987
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Re: Turbo swap!

Post by slm987 » Tue Apr 05, 2016 8:44 am

Turbo parts car may be expensive, but I'll keep my eyes out. I think the only thing that the ECU would depend on is the key/immo unit (if that's separate) and then the transmission shouldn't be any different except for the final drive ratio, so with a turbo engine and N/A transmission, it'd take off faster.



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erikv11
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Re: Turbo swap!

Post by erikv11 » Tue Apr 05, 2016 9:20 am

ECU is in the engine bay, definitely separate from the immobilizer unit on the steering column. Indeed I have read these are the two critical, married units, but I have never owned or messed with a 99 so I am not sure if any of the other networked modules are involved. Most people solve this problem with a trip to the dealer for programming, but if you do some digging then certainly you can figure out which module(s) need to be swapped. The antenna ring is not part of the marriage, those can be swapped around.

The thing about the transmission is that the difference in the drive ratio will likely set off TCU codes, but likely you could find a way around that. But if you are pulling engines anyway, why not pull the trans at the same time (easiest way to pull the engine in my experience) and swap in them both together? And the TCU I presume.


'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 140k
'98 S70 NA, 210k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 280k
'06 S60 R, 160k
gone: '96 NA 850 210k, '98 NA V70 182k

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abscate
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abscate

Re: Turbo swap!

Post by abscate » Tue Apr 05, 2016 9:31 am

Henry ( double bug) will be your new best friend for this swap

Starting searching the 1999 CanBus threads to learn exactly what is needed. It's the " not quite ready for P2" version


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A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

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BEJinFbk
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Re: Turbo swap!

Post by BEJinFbk » Tue Apr 05, 2016 4:01 pm

There's a reason that people don't convert N/A's to turbos.
In fact, there are a LOT of reasons. And that's just with 850's.
This discussion has been picked over and knocked around many
forums, many times. Search it. Add the locked down networking
in a '99 to the mix and it turns into a Real PITA...

This is nothing like most engine swaps, so, I'll say it:

Sell the N/A, find a nice turbo and enjoy a better life!


'98 V70 R - Well Equipped for Life Up North... ;)

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abscate
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abscate

Re: Turbo swap!

Post by abscate » Wed Apr 06, 2016 10:22 am

You are in luck

There is a 1999 auto to manual turbo swap going on in AUS right now - bookmark this thread

http://www.matthewsvolvosite.com/forums ... =1&t=75105

Word of warning - if these guys can't get this to work, abandon all hope. This is a really experienced Volvo guy here.


Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary

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