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850, take the NA out and replace with a Turbo?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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polskamafia mjl
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Re: 850, take the NA out and replace with a Turbo?

Post by polskamafia mjl »

Sell it and buy a turbo.
'All my money is gone and I have an old Volvo.' - Bamse's Turbo Underpants

Current: 1995 Volvo 850 T-5R Manual - Bringing it back from the brink of death
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dosbricks
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Post by dosbricks »

Number 5 is low--normal dry range is 185-213 with max deviation 29--so bears watching.

When was the last time you changed the front O2 sensor? A front sensor with over 100k on it can dog a car down.

Perhaps polskamafia has the right idea though.
'98 S70, 230k, purchased new in '98
'96 855 GLT, 163k, purchased lightly used in '99
Onceuponatime RIP '69 Shelby GT500 w/7.0 liter

woodsytf
Posts: 22
Joined: 28 September 2010
Year and Model: '95 855 n/a; 275k mi
Location: Virginia

Post by woodsytf »

hmm... i've never changed the O2's on this car, but i've also never gotten a code for them yet...
it's measurably slower than it was at even 250k miles hot or cold. and it's never been a rocket like some of the turbos i've driven, i owned a 2000 turbo V70 for a while & that was fun 'til the ETM and ECM became haunted. but this 850 N/A used to have more 'get-up' & go. i have never gotten a ticket in this one, but i had three in the turbo
------------------
-woodsy
1995 855 275k miles

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dosbricks
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Post by dosbricks »

They play out so gradually the ECU adjusts to offset the missing info and it usually never sets a code. At 275k, it might be advisable to change the front sensor, get back about 25hp and sell it before #5 goes to zero--unless you are prepared to gird up your loins for a head rebuild. If so, let it smoke until such time.
'98 S70, 230k, purchased new in '98
'96 855 GLT, 163k, purchased lightly used in '99
Onceuponatime RIP '69 Shelby GT500 w/7.0 liter

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abscate
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Post by abscate »

Off with her head for new stem seals, devote, and new head gasket
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rspi
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Post by rspi »

Just sell it. Get a turbo and put that effort in the FUN you want to have.
'95 855 T-5R M, Panther - 22/28 mpg, 546,000 miles
'95 955 T-5R Yellow Wagon, Lemonade, 180,000 miles
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tryingbe
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Post by tryingbe »

polskamafia mjl wrote:Sell it and buy a turbo.

I'd do that before spending more money on a n/a car
85 GLH, 367 whp
00 Insight, 72 mpg

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