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98 XC-Disappointing 0-60 times: what do I do? 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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CIK7
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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by CIK7 » Sat Mar 21, 2020 7:40 pm

Sveedy wrote:
Sat Mar 21, 2020 3:57 pm
Well 7.8 seems a little slow for a turbo 850. A quick search seems to bare that out.
As to AWD helping with 0 - 60 times, I think you loose a bit of HP going through the additional mechanics before the power gets to the wheels. I can certainly tell you that applies to 4x4's so I would think it would here as well.
I've been considering taking the AWD shaft off for a while now. Will try it soon. But still the XC is rated at 7.7 sec.
1998 V70 XC black ($1K trade, Mi:144/147K, immaculate, remodel in progress, 2 updates coming soon)
1998 V70 XC white ($50 cash, junk, donor for my black XC, off to jy soon, PM for parts)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 16T/18T, P2 M66 swap, logo/badge delete excl grille

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CIK7
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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by CIK7 » Sat Mar 21, 2020 7:45 pm

CIK7 wrote:
Sat Mar 21, 2020 7:38 pm
abscate wrote:
Sat Mar 21, 2020 4:46 pm
CIK7 wrote:
Sat Mar 21, 2020 7:50 am

What do you mean by the first part? I thought AWD helps 0-60 times since it gives more traction.
It’s a fat puppy compared to a FWD :D


The Volvo speed experience

200-250 HP. Fun
250-275 Really Fun
275-300. Really Fun and expensive
>300 HP really fun , expensive , and short lived
Love it dude! 👍 My aim is for really fun. Right now though I believe factory power is 190hp, probably less than that. It's still fun. My friend was in the backseat when I floored it. It really feels fast. It places V6 cars in my rear view mirror. I still want to know why I'm getting 9sec runs instead of the reported 7.3-7.8? And how to solve the issue
1998 V70 XC black ($1K trade, Mi:144/147K, immaculate, remodel in progress, 2 updates coming soon)
1998 V70 XC white ($50 cash, junk, donor for my black XC, off to jy soon, PM for parts)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 16T/18T, P2 M66 swap, logo/badge delete excl grille

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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by scot850 » Sat Mar 21, 2020 8:11 pm

The 98 V70 XC we had was a pretty quick car. But compared to the V70 T5 I had in europe it was a real slug. It was quicker off the mark, but once the T5 turbo spooled up it would blow the XC into the weeds. The XC has 193hp v's the T5 Euro spec had 250hp. Add to the difference is the AWD system adds a lot of fat to the AWD car.

I liked my V70 XC when it wasn't broken (so not that much as it was in a constant state of repair like my 'R' but way cheaper). Was still sad to see it go but someone else needed it more than me.

Rick has stated some very good points in that we all take the fact a car isn't broken means it is working at its optimum. Reality says a 20+ year old car with 150-200k on it is going to be far from that and O2 sensors and injectors wear out slowly so we don't tend to notice.

Good luck in finding the missing horse!

Neil.
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2000 V70 R - still being an endless PITA
2006 XC70
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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by RickHaleParker » Sat Mar 21, 2020 8:51 pm

CIK7 wrote:
Sat Mar 21, 2020 7:38 pm
Right now though I believe factory power is 190hp,
Power output 193 PS (142 kW; 190 hp) at 5100 rpm, 270 N⋅m (200 lb⋅ft) of torque at 1800–5000 rpm.
Platform: P80 1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package, Plant: Uddevalla Sweden.
Platform: X40 (Nedcar) 2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000. Plant: Born Netherlands.
Platform P2 2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0, Plant Torslanda Sweden.
Platform P2 2004 S60R, B2524T4, AW50/51 AWD, Bosch Motronic 7.0, BorgWarner K24 turbocharger, Plant Ghent Belgium.

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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by wizechatmgr » Sun Mar 22, 2020 12:28 am

I removed the drive shaft from my '99 XC recently due to having a bad center support bearing. The power to the front wheels is impressive - maintaining traction does become an issue however.
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 - ~187k miles

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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by wizechatmgr » Sun Mar 22, 2020 12:30 am

abscate wrote:
Sat Mar 21, 2020 2:34 am
Your XC is giving away a lot of pounds to the 850 and drivetrain friction too.

The faster you try to hurry, the quicker you get to end of life,..just sayin...
So true. I own a crotch rocket and I see people passing me all the time during the summer. They get two things I won't be getting... Tickets and toe tags...
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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 - ~187k miles

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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by CIK7 » Mon Mar 23, 2020 12:27 pm

Thank y'all for the advice. I've been considering removing driveshaft for quite some time. Im looking at replacing injectors, O2 sensors, brakes. And I think getting an alignment will help a bit. Accelerating and turning makes my car shake a bit. I already know the alignment is off.
1998 V70 XC black ($1K trade, Mi:144/147K, immaculate, remodel in progress, 2 updates coming soon)
1998 V70 XC white ($50 cash, junk, donor for my black XC, off to jy soon, PM for parts)
2001 V70 Ba white (sold)
2009 Impala LT 3.5L (sold)

Plans for my 98 XC: 16T/18T, P2 M66 swap, logo/badge delete excl grille

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abscate
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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by abscate » Mon Mar 23, 2020 2:18 pm

Make sure this guy didn't work on your drivetrain....
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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by matthew1 » Mon Mar 23, 2020 2:51 pm

At 250hp or less, FWD vs. AWD for traction makes very little difference. Up to that point any normal passenger car's acceleration is entirely weight/power bound.

And gearing and tire size/type, but for the sake of this thread we're not considering those variables, because we're simply talking about P80s.

At 300hp or thereabouts, the front wheel spin will start affecting 0-60 and 1/4 mile times in a clear, objective manner you can see on paper, if not hear and feel during the first 20 feet ;-). But not 1/4 trap times speed, which tend to be a function of purely weight/power.

You can get within a few % accuracy any car's actual WHP by using a formula and plugging in its weight and 1/4 mile trap.

Anyway, here's this https://www.matthewsvolvosite.com/stage-0.html for the must-do basics, and this https://www.matthewsvolvosite.com/tune- ... 0-lpt.html for some LPT power tips.
Last edited by matthew1 on Mon Mar 23, 2020 10:06 pm, edited 1 time in total.
Reason: fixed trap time -> speed, duh
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1997 850 T5, MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace [gone]
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Re: 98 XC-Disappointing 0-60 times: what do I do?

Post by abscate » Mon Mar 23, 2020 2:57 pm

RemembeR, theRe aRe always caRs to fill youR ReaR view miRRoR
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