Diesel exhaust systems

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
Mine only chucks out a puff of black smoke when I burry the throttle then cleans up..the methanol kit has also cleaned the emissions further and improved MPG..I’ve never had any issues regarding the MOT...
 

orca1911

Tuner
Points
57
From
Canada
Car
Peugeot 206 1.6 HDI
Sometimes i ask myself why they put all those filters into diesel cars, in most cases it still leaves a black cloud and you guys clearly pass the requirements without them i suppose...
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
I’m sure I’ve said before..a well tuned engine won’t spew out black smoke?..Take it you wasn’t impressed with the engine bay pics?..like I said..not much to look at..lol..
 

orca1911

Tuner
Points
57
From
Canada
Car
Peugeot 206 1.6 HDI
I guess you're right then, i feel much more comfortable adjusting things now. The engine pics are a bit underwhelming, not gonna lie lol. One could never tell it has so much power from the engine bay alone. On another note, i would like to have the exact same inconspicuous look when im done with mine, it may be better that way, sleepers FTW!
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
I did say there was nothing to see.lol..but that was my intention as with the intercooler..it’s all been done to look as stock as possible...there go the “SLEEPER “.. :)
 

orca1911

Tuner
Points
57
From
Canada
Car
Peugeot 206 1.6 HDI
Aw man, how i'd like to see it in person, it's probably the best little sleeper on the road there and it isnt petrol for a change.
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
The car has been running very well with the methanol injection kit..been considering adding nitrous..any opinions?..lol..
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
I know what you’re saying but people I’ve asked so far have said your car has got full service history and since I’ve had it it’s been serviced every 5,000 miles..diesels are far stronger than petrols so it shouldn’t effect the reliability too much?..
 

orca1911

Tuner
Points
57
From
Canada
Car
Peugeot 206 1.6 HDI
I don't think that you can go past 300 without forged parts though. Given enough time it's gonna be a supercharger spooling a turbocharger soon lol
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
I’ve seen triple turbo set ups where 2 turbo’s wake a massive one up!..lol..not looking to go beyond 300BHP..maybe just an extra 50/60BHP kick up the backside.. :)
 

orca1911

Tuner
Points
57
From
Canada
Car
Peugeot 206 1.6 HDI
https://i.postimg.cc/50GHNtF7/64856304-10219475132778430-42313468044378112-n.jpg

This is a project from another guy, maybe this gives you ideas lol

So dude took a 1.6 engine, diesel, bore it to 1.7, put bigger pistons, new sleeves, where the ac was now stands a supercharger that feeds a big turbocharger. This is the engine i got in my car and im sitting here just looking how the dude did the whole thing. I probably missed a lot of details, just a disclaimer.
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
I’m blowing boost hoses off at the minute..I’m running just over 2 bar of boost which is a fair amount..we’ve tig welded a ridge on the end of the boost pipes and double clamped em so hopefully we’ll see the end of that?..nothing worse when some young upstart in his not hatch challenges you only for the boost pipe to let go!..lol :)
 

obi_waynne

Administrator
Staff member
Moderator
Points
887
From
Deal, Kent UK
Car
A3 1.4 TFSI 150 COD
https://i.postimg.cc/50GHNtF7/64856304-10219475132778430-42313468044378112-n.jpg

This is a project from another guy, maybe this gives you ideas lol

So dude took a 1.6 engine, diesel, bore it to 1.7, put bigger pistons, new sleeves, where the ac was now stands a supercharger that feeds a big turbocharger. This is the engine i got in my car and im sitting here just looking how the dude did the whole thing. I probably missed a lot of details, just a disclaimer.
Given the choice of aircon or supercharger I'd go with power every time! Sounds like an interesting project thanks for the inspirational heads up!
 

orca1911

Tuner
Points
57
From
Canada
Car
Peugeot 206 1.6 HDI
Given the choice of aircon or supercharger I'd go with power every time! Sounds like an interesting project thanks for the inspirational heads up!
Tuner: How much power do you want?
Me: Yes!

She’s running sweet as a nut..my friend expected some small teething issues regarding the boost pipes..
How much miles you got on your car on that tune so far?
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
A good few hundred now..I’d even say the fuel economy has improved slightly too...although I was told the methanol kit does have that effect..
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
To be fair if you aren’t upgrading the turbo the stock intercooler should be more than adequate..I went a bit OTT with mine but we had plenty of room and very little fabrication work to accommodate it...
 

orca1911

Tuner
Points
57
From
Canada
Car
Peugeot 206 1.6 HDI
I'm curious though, what is the "correct" ratio of the intercooler size vs turbo? Does a bigger intercooler on a stock turbo mean more cold air for the engine (maybe lesser engine temp) or is it the same, or maybe even, worse as an upgrade?
 

obi_waynne

Administrator
Staff member
Moderator
Points
887
From
Deal, Kent UK
Car
A3 1.4 TFSI 150 COD
An intercooler warms up as it works, the larger it is means it can stay cooler for longer. Add in the extra distance the air has to go, the additional turbulance and you have a need to match intercooler size with requirements for it to stay cool for longer.

Rule of thumb I use is 3 litres of intercooler capacity per 100bhp.

Water or methanol injected on the intercooler can also help to keep it cool and I've seen this done where space was limited for a larger intercooler.

Read our full guide here, if you haven't already.
https://www.torquecars.com/tuning/aftermarket-intercooler.php
 

Greg1990

Torque Junkie
Points
292
From
Pontefract
Car
S40 2.0D SE sport
I’ve no idea on specifics but the standard turbo will have to fill a larger area which may reduce the effects of the boost that reaches the throttle body?..some may argue it could increase turbo lag where some may say you’ll see around a 5-10% increase in power?..I personally wouldn’t upgrade the intercooler without also upgrading the turbo..but I’m no master on the subject...my car made 40BHP more over stock with the remap alone ..the turbo and intercooler upgrade then took that to just over 100BHP above stock..
 
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