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1997 850R - Stumped - Boost Issue Topic is solved

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
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bmdubya1198
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Re: 1997 850R - Stumped - Boost Issue

Post by bmdubya1198 » Wed Jun 13, 2018 1:42 pm

Maybe it's time for an 18t upgrade for "testing purposes!"


1998 V70 GLT Black/Beige 185,000 and counting
2000 V70R Venetian Red/Black 187k M56 Swapped
1988 744 Turbo M46 Beige Metallic/Beige 188k- Gone but not forgotten
1999 Miata Sport 5 speed

diggler30
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Year and Model: 1997 850R
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Re: 1997 850R - Stumped - Boost Issue

Post by diggler30 » Wed Jun 13, 2018 1:43 pm

bmdubya1198 wrote:
Wed Jun 13, 2018 1:42 pm
Maybe it's time for an 18t upgrade for "testing purposes!"
If I could I would. I hate being broke all of the time. But wife and kids come before my car I guess. :)


1997 854R
IPD Intake
Ported/Polished Intake Manifold w/3" Throttle Body
Old IPD Strut Brace
ARD Stage 2 Tune
IPD/TME Exhaust
IPD/Koni Suspension
Manual Swap

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bmdubya1198
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Re: 1997 850R - Stumped - Boost Issue

Post by bmdubya1198 » Wed Jun 13, 2018 1:46 pm

diggler30 wrote:
Wed Jun 13, 2018 1:43 pm
bmdubya1198 wrote:
Wed Jun 13, 2018 1:42 pm
Maybe it's time for an 18t upgrade for "testing purposes!"
If I could I would. I hate being broke all of the time. But wife and kids come before my car I guess. :)
I hear ya... it's not fun trying to do my V70R M56 swap with no money! Fortunately no wife or kids for me to worry about yet... then I'd be even more broke!


1998 V70 GLT Black/Beige 185,000 and counting
2000 V70R Venetian Red/Black 187k M56 Swapped
1988 744 Turbo M46 Beige Metallic/Beige 188k- Gone but not forgotten
1999 Miata Sport 5 speed

diggler30
Posts: 52
Joined: Mon May 20, 2013 1:58 pm
Year and Model: 1997 850R
Location: Puyallup, WA
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Re: 1997 850R - Stumped - Boost Issue

Post by diggler30 » Wed Jun 13, 2018 2:35 pm

bmdubya1198 wrote:
Wed Jun 13, 2018 1:46 pm
diggler30 wrote:
Wed Jun 13, 2018 1:43 pm
bmdubya1198 wrote:
Wed Jun 13, 2018 1:42 pm
Maybe it's time for an 18t upgrade for "testing purposes!"
If I could I would. I hate being broke all of the time. But wife and kids come before my car I guess. :)
I hear ya... it's not fun trying to do my V70R M56 swap with no money! Fortunately no wife or kids for me to worry about yet... then I'd be even more broke!
You definitely would be haha


1997 854R
IPD Intake
Ported/Polished Intake Manifold w/3" Throttle Body
Old IPD Strut Brace
ARD Stage 2 Tune
IPD/TME Exhaust
IPD/Koni Suspension
Manual Swap

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erikv11
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Re: 1997 850R - Stumped - Boost Issue

Post by erikv11 » Wed Jun 13, 2018 10:23 pm

The wastegate flap is not in the turbo, it's in the exhaust housing. So the bad news is, replacing it has nothing to do with replacing the turbo (no 18t required). But the good news is its not in the turbo (much cheaper to fix than a new turbo)!

It will be easy to check out the wastegate just by opening and closing it etc, when you have the actuator off.


'95 854 T5-R || m4.4 || 185k
'96 855 NA || 140k
'98 V70 || T5 tune-injectors-turbo, LPT engine || 275k
'06 S60 R || 145k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 NA S70 174k

diggler30
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Year and Model: 1997 850R
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Re: 1997 850R - Stumped - Boost Issue

Post by diggler30 » Thu Jun 14, 2018 7:32 am

The flap opens and closes super easy with the arm not connected.

One thing I just thought of yesterday is that even though I have a Blow Off Valve, there is still pressure being released to where I can hear it in the intake along with the BOV. Is that normal?

Also what about the cap and rotor being an issue. They are a few years old now. Doubt that would cause this though.


1997 854R
IPD Intake
Ported/Polished Intake Manifold w/3" Throttle Body
Old IPD Strut Brace
ARD Stage 2 Tune
IPD/TME Exhaust
IPD/Koni Suspension
Manual Swap

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bmdubya1198
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Re: 1997 850R - Stumped - Boost Issue

Post by bmdubya1198 » Thu Jun 14, 2018 8:51 am

I doubt the cap and rotor would have anything to do with this issue.
What about your tune? Is the BOV accounted for?


1998 V70 GLT Black/Beige 185,000 and counting
2000 V70R Venetian Red/Black 187k M56 Swapped
1988 744 Turbo M46 Beige Metallic/Beige 188k- Gone but not forgotten
1999 Miata Sport 5 speed

diggler30
Posts: 52
Joined: Mon May 20, 2013 1:58 pm
Year and Model: 1997 850R
Location: Puyallup, WA
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Re: 1997 850R - Stumped - Boost Issue

Post by diggler30 » Thu Jun 14, 2018 9:54 am

Yes, BOV is accounted for in the tune. I brought my OEM Wastegate to work and will probably put it on at my lunch break today and test it on the way home. If its still the same then I guess I will have to save for a turbo :(


1997 854R
IPD Intake
Ported/Polished Intake Manifold w/3" Throttle Body
Old IPD Strut Brace
ARD Stage 2 Tune
IPD/TME Exhaust
IPD/Koni Suspension
Manual Swap

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Re: 1997 850R - Stumped - Boost Issue

Post by abscate » Sun Jun 17, 2018 7:38 pm

bmdubya1198 wrote:
Wed Jun 13, 2018 1:46 pm
diggler30 wrote:
Wed Jun 13, 2018 1:43 pm
bmdubya1198 wrote:
Wed Jun 13, 2018 1:42 pm
Maybe it's time for an 18t upgrade for "testing purposes!"
If I could I would. I hate being broke all of the time. But wife and kids come before my car I guess. :)
I hear ya... it's not fun trying to do my V70R M56 swap with no money! Fortunately no wife or kids for me to worry about yet... then I'd be even more broke!
You will have less money but be infinitely richer.


1 SWMBO for 30 years
2 Volvos
3 VWs
4 Careers
5 cats/dogs/gears
6 Perfect Ladies in waiting
7 Drivers
8 Boats- with a big pointy metal thing on top

1999 V70 T5M 56 2005 V70 NA M56 VWs BMW

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Re: 1997 850R - Stumped - Boost Issue

Post by wizechatmgr » Sun Jun 17, 2018 7:59 pm

+1 on kids being worth it. Sometimes spouses are even worth it - totally depends on the spouse.


Wisdom requires knowledge as a prerequisite, but knowledge can be developed due to a lack of wisdom.
In order to learn how to fix something, you must first learn how to break it.
1999 V70 XC AWD - ~163k miles

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