S40 t4 Turbine glowing

Endorphin · Apr 13th, 2020, 11:03

To start with - everything works on OEM specs, I have only NA valves fitted + LPG system.
So far i have seen the exaust part glowing, once even going to bright red, but under load, a lot of.
What gets me questioning is it normal is that I noticed that it is glowing red after cruising with 140km/h (~90mph) w/o even goind to more than 0,3bar boost. This was on LPG fuel, I have to check how it would be on petrol.
So since I have LPG I am thinking - what about Catalytic converter check and maybe removal. I think It will have it's pros and cons, but if it really turn out to be the Converter ...
Is it normal to goes that hot under mild driving, cruising even.

magnuz · Apr 13th, 2020, 15:55

I don't know about LPG, but on cars (not necessarily volvo) that run on petrol, i have known the cat to glow hot when the engine is being over fuelled !

Endorphin · Apr 17th, 2020, 04:44

So actual situation is the attached picture.
It happened after acceleration from 2nd to 4th up to 190km/h.
Then around 1km driving within 170-180+ on 5th (noticed not smooth acceleration).
Then 10km at highway driving with 140 on cruise control, and 300m to stop after the highway to check it - and was like the picture.
After that city driving for 3km, and was fine, w/o any reddish colour.

Apr 13th, 2020, 11:03	#1
Endorphin New Member Last Online: Apr 26th, 2020 15:30 Join Date: Nov 2017 Location: Sofia	S40 t4 Turbine glowing To start with - everything works on OEM specs, I have only NA valves fitted + LPG system. So far i have seen the exaust part glowing, once even going to bright red, but under load, a lot of. What gets me questioning is it normal is that I noticed that it is glowing red after cruising with 140km/h (~90mph) w/o even goind to more than 0,3bar boost. This was on LPG fuel, I have to check how it would be on petrol. So since I have LPG I am thinking - what about Catalytic converter check and maybe removal. I think It will have it's pros and cons, but if it really turn out to be the Converter ... Is it normal to goes that hot under mild driving, cruising even. Last edited by Endorphin; Apr 13th, 2020 at 11:25.

Apr 13th, 2020, 15:55	#2
magnuz Ancient Last Online: Apr 23rd, 2024 20:31 Join Date: May 2012 Location: chesterfield	I don't know about LPG, but on cars (not necessarily volvo) that run on petrol, i have known the cat to glow hot when the engine is being over fuelled !

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