why no smoke??

mikejay · 09-07-2005, 17:58

just adjusted my dragon tunning (digital) box to level 16!! great performance but no smoke?? im not conplaining, just a bit curious why everyone seams to get smoke bellowing out the back of there furby vrs's but not mine?? also got pikey mods and cupra intake. could this be why?

WW_VRS · 09-07-2005, 18:15

It could be the extra cooling you've allowed (P1/2). I've already got the Cupra intake + Green Filter. Mine doesnt tend to smoke generally

mikejay · 09-07-2005, 18:36

Quote:

Originally Posted by WW_VRS

It could be the extra cooling you've allowed (P1/2). I've already got the Cupra intake + Green Filter. Mine doesnt tend to smoke generally

what engine mods you got?

walkie · 09-07-2005, 18:48

I can honestly say I've never seen my car smoke...

mikejay · 09-07-2005, 18:55

with what mods walkie?? why do some smoke easily and some dont then?

Mil · 09-07-2005, 19:00

Quote:

Originally Posted by walkie

I can honestly say I've never seen my car smoke...

Is your car modified?

Shifty · 09-07-2005, 19:31

Smoke in a newer derv is unburnt fuel. All dervs will give a little puff at gear changes under acceleration, even yours walkie, its just such a small amount you may not notice. If you potter round town, stuck in a queue etc, then welly it, it will smoke then. Every derv i have had has done that. If it doesnt smoke, it might be running a little lean, ie a little too much air. If you are happy with the performance, no harm in leaving it that way.

Mil · 09-07-2005, 19:53

What's a derv?

Shifty · 09-07-2005, 19:59

Quote:

Originally Posted by Mil

What's a derv?

derv = diesel engined road vehicle

WRCSixtyThree · 09-07-2005, 20:27

Quote:

Originally Posted by Shifty

it might be running a little lean, ie a little too much air. If you are happy with the performance, no harm in leaving it that way.

Except for the overheating it will cause, which could do some harm, even in a diesel engine.

Obviously in a petrol engined vehicle, lean running can be VERY bad. Overheating, pinking (pre-ignition of the air/fuel mixture), even piston meltdown are not unheard of. In fact, my first Punto GT did exactly that before FIAT bought it back off me.

**robmawer** · 09-07-2005, 20:39

Quote:

Originally Posted by WRCSixtyThree

Except for the overheating it will cause, which could do some harm, even in a diesel engine.

But diesels run lean by their very nature, don't they?

Rob.

WRCSixtyThree · 09-07-2005, 20:57

Quote:

Originally Posted by robmawer

But diesels run lean by their very nature, don't they?

Rob.

Far leaner than petrols, certainly. But over-leaning a diesel has one sinister effect you won't find on petrols - an over-lean diesel can overheat in the bores quite quickly, which can result in the fuel, which doubles as a lubricant to some degree tending to 'varnish' - it's lubricant properties lost, the engine can suffer accelerated wear.

walkie · 09-07-2005, 20:57

Quote:

Originally Posted by mikejay

with what mods walkie?? why do some smoke easily and some dont then?

Pikey mods, cupra pipe, and green filter.

Never ever sit in traffic, and it gets a nice boot fairly often...

Not saying mine doesnt smoke, I am sure it does, but I've never seen it

Jobo · 09-07-2005, 21:08

I tend to find if you give it a good welly now and again it helps with less smoking.

I just hate when it's wet weather and that dirty soot sticks to the chrome tailpipe trim though!

ScoobyChris · 09-07-2005, 21:11

Quote:

Originally Posted by Shifty

Every derv i have had has done that. If it doesnt smoke, it might be running a little lean, ie a little too much air. If you are happy with the performance, no harm in leaving it that way.

My Fabia didn't smoke at all, even under hard acceleration (had several people follow me to confirm!) and that was with a tuning box too! My Mondeo is a bit smokier though, but not as bad as my Disco with the fuel pump wound right up

Btw, overfuelling a diesel can also lead to temperatures in the cylinder rising too high.....

Chris

WW_VRS · 09-07-2005, 22:21

The mods I've done are all in my sig, not got a tuning box or remap done (yet). I'm hoping to get the Miltek exhaust via the groupbuy here, and the FMIC when it's released as a GB as well. Then I'm getting the sump protector from the GB that Josh is trying to get sorted here

When the insurance is due for renewal I'll get a remap sorted out, for now I've gotta be happy with what I can get away with by my current insurer.

nunchucker · 09-07-2005, 22:58

walkie
talkie Join Date: Aug 2004
Posts: 2,186

--------------------------------------------------------------------------------

Quote:
Originally Posted by mikejay
with what mods walkie?? why do some smoke easily and some dont then?

Pikey mods, cupra pipe, and green filter.

Never ever sit in traffic, and it gets a nice boot fairly often...

Not saying mine doesnt smoke, I am sure it does, but I've never seen it

if its not smoking in your situation then your ok, but if its stands a lot in ques doing a lot of idling its building up a lot of carbon and that needs but be cleared. but diesels run better the more you rag the plums off them unlike petrols (although my petrol loves it) and get rid of that carbon, specially befor you go for an MOT.

HotVRs · 10-07-2005, 12:41

My standard vRS smokes a fair bit at heavy/full throttle, even though it spends most of it's time on motorways. But it's no more than any other diesel I've driven.

paxton · 10-07-2005, 13:14

my 54 plate fab vrs smokes - when i start it up in the morning - a puff blows out the back! also when im cruising and decide to put my foot down - it does kick out a puff of smoke!

bengie · 10-07-2005, 14:34

my diesel nova smoked a little bit*

*read 'little bit' as a 007 smoke screen

Alan M · 10-07-2005, 14:44

Every now and then i notice a little bit of smoke behind my vRS, but not too much or too often. None of my friends/family have mentioned anything about it when they've been driving behind me anyway.

b1ackb1rd · 10-07-2005, 19:25

No smoke from my combi, I've got an adjustable tuning box fitted and on the low setting at the moment ... it don't smoke on the high setting either.

In light of the over-lean comments above, is it a good idea to go ahead with a jetex airfilter and cupra intake?

mattstimpson · 10-07-2005, 19:46

ive got a dragon box on my octy, and thats crancked up high with hardly any smoke.
i dont think its kicking out any more now than it was before.
ive had it higher still with no smoke, but turned it back a turn just incase.

WW_VRS · 10-07-2005, 21:40

IMHO there is no such thing as overlean in that sense - i.e. the ECU will sort out the fuel/air mixture. Providing more air means it allows for more fuel without it causing unburnt stuff to go out the exhaust

Steve Walker · 11-07-2005, 10:43

My car has been renamed Sooty by all who follow her. Ok track use is not typical but at full revs & full right boot she does smoke.
See attached pic

09-07-2005, 17:58	#1
mikejay Briskodian Join Date: Nov 2004 Location: wigan Posts: 1,169 Members Car: fuby vrs black cupra 160 intake, sachs clutch and jabba remap. 179bhp 340 torque Thanks: 0 Thanked 2 Times in 2 Posts	why no smoke?? just adjusted my dragon tunning (digital) box to level 16!! great performance but no smoke?? im not conplaining, just a bit curious why everyone seams to get smoke bellowing out the back of there furby vrs's but not mine?? also got pikey mods and cupra intake. could this be why? __________________ 179BHP AND 340 TORQUE!!!

09-07-2005, 18:15	#2
WW_VRS Escorted Estate Join Date: Nov 2004 Location: Oxfordshire/Berkshire Posts: 9,961 Members Car: Ford Escort 1.6LX + Fab Estate Thanks: 48 Thanked 92 Times in 82 Posts	It could be the extra cooling you've allowed (P1/2). I've already got the Cupra intake + Green Filter. Mine doesnt tend to smoke generally __________________ WW --->> Project Journal (pic links in first post there) Lummox'/Ross thread on Unit18 Automotive progress on my car: here

09-07-2005, 18:48	#4
walkie ............... Join Date: Aug 2004 Location: Monday: MK Tuesday: MK Wednesday: MK Thursday: MK Friday: MK/Home Saturday: Home Sunday: In bed ;o) Posts: 6,606 Members Car: BMW 120D M-Sport Thanks: 0 Thanked 1 Time in 1 Post	I can honestly say I've never seen my car smoke... __________________ Having a little break, concentrate on the more important things in life, swmbo and my training. See you soon folks, take care - James

09-07-2005, 18:55	#5
mikejay Briskodian Join Date: Nov 2004 Location: wigan Posts: 1,169 Members Car: fuby vrs black cupra 160 intake, sachs clutch and jabba remap. 179bhp 340 torque Thanks: 0 Thanked 2 Times in 2 Posts	with what mods walkie?? why do some smoke easily and some dont then? __________________ 179BHP AND 340 TORQUE!!!

09-07-2005, 19:31	#7
Shifty Ex Modder Join Date: May 2005 Location: Blackpool. Posts: 6,647 Members Car: Omega 2.5 V6 CDX Auto Images: 2 Thanks: 93 Thanked 177 Times in 112 Posts	Smoke in a newer derv is unburnt fuel. All dervs will give a little puff at gear changes under acceleration, even yours walkie, its just such a small amount you may not notice. If you potter round town, stuck in a queue etc, then welly it, it will smoke then. Every derv i have had has done that. If it doesnt smoke, it might be running a little lean, ie a little too much air. If you are happy with the performance, no harm in leaving it that way. __________________ <----- Add me on Xfire. Everyone knows someone called Dave. That's me - I'm Dave™

09-07-2005, 19:53	#8
Mil Briskodian Join Date: Jan 2005 Location: United Arab Emirates Posts: 3,807 Members Car: Weichers strut, K&N panel filter, GT bodykit, GT tailpipe, Falken tyres Thanks: 0 Thanked 5 Times in 5 Posts	What's a derv? __________________ Milton Kyvernitis Private Government

09-07-2005, 21:08	#14
Jobo Briskodian Join Date: Apr 2005 Location: Aberdeen, Scotland Posts: 131 Members Car: Black Magic Fabia vRS Thanks: 0 Thanked 0 Times in 0 Posts	I tend to find if you give it a good welly now and again it helps with less smoking. I just hate when it's wet weather and that dirty soot sticks to the chrome tailpipe trim though! __________________ Old car :- 2005 Black Magic Fabia vRS - Eibachs,Star Performance Re-map New Car :- Renaultsport Clio 182 c/w Cup suspension pack and Cup spoiler pack

09-07-2005, 22:21	#16
WW_VRS Escorted Estate Join Date: Nov 2004 Location: Oxfordshire/Berkshire Posts: 9,961 Members Car: Ford Escort 1.6LX + Fab Estate Thanks: 48 Thanked 92 Times in 82 Posts	The mods I've done are all in my sig, not got a tuning box or remap done (yet). I'm hoping to get the Miltek exhaust via the groupbuy here, and the FMIC when it's released as a GB as well. Then I'm getting the sump protector from the GB that Josh is trying to get sorted here When the insurance is due for renewal I'll get a remap sorted out, for now I've gotta be happy with what I can get away with by my current insurer. __________________ WW --->> Project Journal (pic links in first post there) Lummox'/Ross thread on Unit18 Automotive progress on my car: here

09-07-2005, 22:58	#17
nunchucker Briskodian Join Date: Jul 2005 Location: northwest Posts: 15 Members Car: Thanks: 0 Thanked 0 Times in 0 Posts	walkie talkie Join Date: Aug 2004 Posts: 2,186 -------------------------------------------------------------------------------- Quote: Originally Posted by mikejay with what mods walkie?? why do some smoke easily and some dont then? Pikey mods, cupra pipe, and green filter. Never ever sit in traffic, and it gets a nice boot fairly often... Not saying mine doesnt smoke, I am sure it does, but I've never seen it if its not smoking in your situation then your ok, but if its stands a lot in ques doing a lot of idling its building up a lot of carbon and that needs but be cleared. but diesels run better the more you rag the plums off them unlike petrols (although my petrol loves it) and get rid of that carbon, specially befor you go for an MOT.

10-07-2005, 12:41	#18
HotVRs Briskodian Join Date: Dec 2004 Posts: 420 Members Car: Thanks: 0 Thanked 3 Times in 3 Posts	My standard vRS smokes a fair bit at heavy/full throttle, even though it spends most of it's time on motorways. But it's no more than any other diesel I've driven.

10-07-2005, 13:14	#19
paxton Briskodian Join Date: Jul 2004 Location: midlands Posts: 1,458 Members Car: Black Magic Fabia vRS Thanks: 0 Thanked 0 Times in 0 Posts	my 54 plate fab vrs smokes - when i start it up in the morning - a puff blows out the back! also when im cruising and decide to put my foot down - it does kick out a puff of smoke!

10-07-2005, 14:34	#20
bengie splash!!!! Join Date: Feb 2004 Location: planet earth Posts: 15,425 Members Car: 4x4 turbo estate Thanks: 18 Thanked 152 Times in 133 Posts	my diesel nova smoked a little bit* *read 'little bit' as a 007 smoke screen __________________ owner of a skoda octavia 4xvrs3

10-07-2005, 14:44	#21
Alan M Briskodian Join Date: May 2005 Location: North East UK, Gateshead Posts: 350 Members Car: Red 2005 Fabia vRS Thanks: 0 Thanked 0 Times in 0 Posts	Every now and then i notice a little bit of smoke behind my vRS, but not too much or too often. None of my friends/family have mentioned anything about it when they've been driving behind me anyway. __________________ *Vorsprung DERV Technik*

10-07-2005, 19:25	#22
b1ackb1rd Briskodian Join Date: May 2005 Location: Midlands Posts: 302 Members Car: Thanks: 2 Thanked 2 Times in 2 Posts	No smoke from my combi, I've got an adjustable tuning box fitted and on the low setting at the moment ... it don't smoke on the high setting either. In light of the over-lean comments above, is it a good idea to go ahead with a jetex airfilter and cupra intake?

10-07-2005, 19:46	#23
mattstimpson Briskodian Join Date: Aug 2004 Posts: 197 Members Car: Thanks: 0 Thanked 0 Times in 0 Posts	ive got a dragon box on my octy, and thats crancked up high with hardly any smoke. i dont think its kicking out any more now than it was before. ive had it higher still with no smoke, but turned it back a turn just incase.

10-07-2005, 21:40	#24
WW_VRS Escorted Estate Join Date: Nov 2004 Location: Oxfordshire/Berkshire Posts: 9,961 Members Car: Ford Escort 1.6LX + Fab Estate Thanks: 48 Thanked 92 Times in 82 Posts	IMHO there is no such thing as overlean in that sense - i.e. the ECU will sort out the fuel/air mixture. Providing more air means it allows for more fuel without it causing unburnt stuff to go out the exhaust __________________ WW --->> Project Journal (pic links in first post there) Lummox'/Ross thread on Unit18 Automotive progress on my car: here

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