IPD sale XeMODeX - Experts in Volvo Electronics
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy anything with this and it helps MVS!

Upgrading straight flange 15t turbo??

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

Empigt
Posts: 54
Joined: Thu Dec 05, 2019 7:07 pm
Year and Model: 1997 850R
Location: Arkansas
Has thanked: 0
Been thanked: 1 time
United States of America
Empigt

Upgrading straight flange 15t turbo??

Post by Empigt » Wed Apr 01, 2020 10:50 am

I'm upgrading the exhaust on my 1997 850r. Was installing it and found my down pipe is for and angle flange turbo. I've found and angle flange exhaust casing. And was thinking I may go ahead and put a new 16t cartridge in it. Will there be any trouble doing this with the intake blower side aluminum casting or does that need to upgraded as well?

User avatar
erikv11
Posts: 9661
Joined: Sat Jul 25, 2009 2:03 pm
Year and Model: 850, S/V70, 06 S60R
Location: Iowa
Has thanked: 94 times
Been thanked: 276 times
United States of America
erikv11

Re: Upgrading straight flange 15t turbo??

Post by erikv11 » Wed Apr 01, 2020 12:52 pm

Sounds like already know most (all?) of this but:

The P80 exhaust manifolds are all the same in terms of fitment. In fact you can put in many P2 exhaust manifolds too, if you want.

The exhaust flange is the part between the manifold and the turbo and you can swap the exhaust flange around for the 94-98 cars like this: All three exhaust flanges work on any exhaust manifold, since the manifolds are all the same. And the turbo side is the same for all 94-98 (16t and 15g and 13g), just the downpipe side is different between conical, straight and angled exhaust flanges. The short of it is that you can swap everything around as long as the exhaust flange matches the downpipe.

So the easiest thing to do is just drop in a full 16t turbo, and either keep the existing flange and downpipe or use the exhaust flange that matches the downpipe you want to use. And yes there are performance differences, angled > straight > conical.

If you want a bigger turbo (18t, 19t or bigger) then you need a 99+ angled flange with the larger opening, that flange doesn't swap with the smaller 13g-15g-16t turbos that came on these 95-98 cars.

Hopefully that answers your question, the post title says you want to know about the flange but did you also want additional input on how to swap the turbo cartridges? if not let us know I will try again (or someone else will!).
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 286k
'06 S60 R, 167k
'99 Camry V6 :shock: 125k
gone: '96 NA 850 210k, '98 NA V70 182k

Empigt
Posts: 54
Joined: Thu Dec 05, 2019 7:07 pm
Year and Model: 1997 850R
Location: Arkansas
Has thanked: 0
Been thanked: 1 time
United States of America
Empigt

Re: Upgrading straight flange 15t turbo??

Post by Empigt » Wed Apr 01, 2020 3:21 pm

Thanks I've already figured out how to replace the cartridges. You answered my questions perfectly. Thanks so much

Empigt
Posts: 54
Joined: Thu Dec 05, 2019 7:07 pm
Year and Model: 1997 850R
Location: Arkansas
Has thanked: 0
Been thanked: 1 time
United States of America
Empigt

Re: Upgrading straight flange 15t turbo??

Post by Empigt » Wed Apr 01, 2020 5:40 pm

Also will the 19t cartridge fit the boost intake side of the turbo. I don't think I'll go more boost then a 16t. Being that this is still an automatic car. Just for future reference. Thanks.

User avatar
Clemens
Posts: 1174
Joined: Thu Sep 03, 2015 12:34 pm
Year and Model: 96 855 R + 94 855 T5
Location: Austria
Has thanked: 93 times
Been thanked: 53 times
Austria
Clemens

Re: Upgrading straight flange 15t turbo??

Post by Clemens » Thu Apr 02, 2020 1:06 pm

be aware of the 19T aka Rodbender!
Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V

scot850
Posts: 5900
Joined: Mon Apr 05, 2010 2:46 pm
Year and Model: 2000 V70 R
Location: Calgary, Alberta, Canada
Has thanked: 11 times
Been thanked: 208 times
Canada
scot850

Re: Upgrading straight flange 15t turbo??

Post by scot850 » Thu Apr 02, 2020 1:21 pm

Also, the 19T is so slow to spool up. For every day driving I would go for a 16T or possibly an 18T if yo want more power. My 00 R has a 19T and unless you are on it and keep the revs up it will bog down at lower revs when you want power.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

User avatar
abscate
MVS Moderator
Posts: 21028
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 315 times
Been thanked: 971 times
Trinidad & Tobago
abscate

Re: Upgrading straight flange 15t turbo??

Post by abscate » Thu Apr 02, 2020 6:42 pm

scot850 wrote:
Thu Apr 02, 2020 1:21 pm
Also, the 19T is so slow to spool up. For every day driving I would go for a 16T or possibly an 18T if yo want more power. My 00 R has a 19T and unless you are on it and keep the revs up it will bog down at lower revs when you want power.

Neil.
Left foot, right hand , and the revs are right where you want them
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

Post Reply
  • Similar Topics
    Replies
    Views
    Last post