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2002 Volvo S40 Turbo, coolant line to intake

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1996 - 2004 S40
1996 - 2004 V40
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S40Luckey
Posts: 8
Joined: Wed Sep 12, 2012 6:16 pm
Year and Model: 2002 Volvo S40
Location: Somewhere in Mid-America
United States of America

2002 Volvo S40 Turbo, coolant line to intake

Post by S40Luckey » Wed Mar 14, 2018 5:22 pm

Hi All,

I have the engine and transmission out of the car for a transmission swap, and want to know if I can delete the intake-manifold coolant heater lines by capping it at the thermostat and engine block? I'm thinking it will be fine, but wanted to see if anyone could verify. I figure that removing the extra failure points is a good thing, and it cleans up under the hood. The car's a little cold-blooded with that coolant line already looped, but nothing unbearable.

Underhood Mods for the car:
-Upsolute tune
-14t turbo
-upgraded exhaust (turbo-back)
-Stock Volvo PCV system deleted. I replaced it with a sensible catch-can setup
-Looped the coolant lines to the intake manifold
-working on bottom-mount intercooler. Should be done next month

Mark

QUARKS40
Posts: 32
Joined: Sat Jan 06, 2018 6:47 pm
Year and Model: 2010 XC60
Location: Texas
Been thanked: 2 times
United States of America

Re: 2002 Volvo S40 Turbo, coolant line to intake

Post by QUARKS40 » Sun Mar 18, 2018 9:31 pm

Yes. The coolant to the intake manifold is only useful in cold areas or cold weather situations. It's bypassed on mine
2010 XC60 - P*, 3 Spoke steering wheel retro, Gearshift retro.
2001 S40 - 14T, BBTB, turbo back stainless DP, Upsolute, KW, 15mm rear sway, 17" Konig wheels, Custom Arctic Silver/Sonic Blue pearl paint, custom interior

S40Luckey
Posts: 8
Joined: Wed Sep 12, 2012 6:16 pm
Year and Model: 2002 Volvo S40
Location: Somewhere in Mid-America
United States of America

Re: 2002 Volvo S40 Turbo, coolant line to intake

Post by S40Luckey » Mon Mar 19, 2018 4:31 pm

Thanks! Just finished putting everything back together. I hope to get it all sorted out and to the dyno for base tuning in a month or so.

Mark

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