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View Full Version : Why wont my car pop? lol


jonnyquiksilver
22nd September 2011, 18:34
sounds sad but this is bugging me now, i have never come across a 106 gti or saxo vts that doesnt pop if you give it some shit on idle, and most do it on gear change. no matter what i do it just doesnt have any of it, been told you can do something with the carbon canister or remove it and it does something or is this just myth? i have pipercross viper induction kit, and straight through pipe with piper backbox so cant see what the problem is?

Ryan
22nd September 2011, 18:36
most pop due to shit exhausts/overfuelling....

wadoryu
22nd September 2011, 18:51
you need a decat and a manifold. i believe it's the manifold that get's you decent popping.

LSOfreak
22nd September 2011, 18:56
decat it then it'll pop ;)

rick_VTR
22nd September 2011, 18:57
yep, decat and or 4 branch manifold.

done it for me.

doesnt pop all the time, but sometime son gear changes up and down.

and usualy when stood still and you blip the throttle slightly it burbles abit when the revs settle back down.

sounds nice :)

ive got a raceland 4-1 decat manifold and a piper manifold back stainless system with centre silencer.
only other mods are a custom induction with a K&N cone filter.

Tontsy
22nd September 2011, 18:57
does it snap or crackle ? . . .

wicked-vtr
22nd September 2011, 18:58
decat, manifold, blah blah blah. Its just unburnt fuel being dumped into the hot exhaust, ergo, overfuelling and killing your valve stem seals

Mr_P
22nd September 2011, 18:58
does it snap or crackle ? . . .

Mine snapped.

Haggis_dcfc
22nd September 2011, 19:00
you need a decat and a manifold. i believe it's the manifold that get's you decent popping.

not got a decat or manifold and mine pops

just overfueling i think is main condender, but decat does help it alot

LSOfreak
22nd September 2011, 19:03
or get a 4inch peco backbox like mine lol looks fucking huge but i love the sound it makes. pops after every gear change

logic_guy
22nd September 2011, 19:06
I have a S' through system. As i have a MK2 VTR, the CAT is in the manifold and i've not removed this yet with my Sportex back box it pops and gurgles nicely.

Edit: I meant VTR

wadoryu
22nd September 2011, 19:22
not got a decat or manifold and mine pops

just overfueling i think is main condender, but decat does help it alot

then you have problems dude

Mr_P
22nd September 2011, 19:23
I have a S' through system. As i have a MK2 VTS, the CAT is in the manifold and i've not removed this yet with my Sportex back box it pops and gurgles nicely.

All the VTS Cats are under the car.

logic_guy
22nd September 2011, 19:23
All the VTS Cats are under the car.

I never knew that. What's the reason for that?

Btw.. I meant VTR,

blanks
22nd September 2011, 19:47
decat, manifold, blah blah blah. Its just unburnt fuel being dumped into the hot exhaust, ergo, overfuelling and killing your valve stem seals

my valve stem seals are on the way out. and have major over fueling. but the flames and poping on both up change and shut off well worth it lol, big soot patch on the rear bumper.

sebring
22nd September 2011, 23:21
All the VTS Cats are under the car.

I never knew that. What's the reason for that?

Btw.. I meant VTR,


because otherwise you can here them meowing

jonnyquiksilver
23rd September 2011, 01:21
This is what annoys me. It is already decat, straight through droo manifold to backbox, all it does is a few crackles when im releasing clutch slowly at low revs :( shit being the odd one out ha ;)

Darkslider
23rd September 2011, 07:56
I grew out of wanting pops, bangs and flames when I stopped being 17, but I still do love flicking the kill switch on the bike to scare people at bus stops and in tunnels with a massive backfire! A Saxo doesn't compare!

But FWIW I've got a standard manifold, Magnex decat stainless centre silencer and backbox. It gives a nice burble on idle and a deep bass sporty tone when given the beans, I'm not into raspy rally noise unless it's a full on track car and mine isn't. Mine pops when changing up on the beans, you won't get yours to do it unless you get rid of the cat.

KamRacing
23rd September 2011, 10:01
I grew out of wanting pops, bangs and flames when I stopped being 17

You need to see a doctor. A proper engine making pops, bangs and flames is one of the great things about tuning cars.

You need a good manifold, and a correctly matched performance exhaust system that has high gas speed so fuel is scavenged from the inlet when the exhaust valves are open. Then fuel and air is drawn into the hot exhaust and you get the right sounds. Longer duration camshafts such as the Cat cams 1321708 (http://www.kamracing.co.uk/citroen/citroen-saxo/saxo-engine/camshafts/citroen-saxo-vts-fast-road-camshafts-cat-cams-1321708.html) obviously help. you certainly dont want a horrible restrictive cat though.

Ashleyp
23rd September 2011, 10:15
This thread, well - the OP's post sums up saxo owners.

birchybalboa
23rd September 2011, 10:55
Mine never does :( I have finally accepted that even after 285 cam piper 4-1 and kamracing pipe + backbox, bmc cda,,,,,,,, need more valves :(

Gandi699
23rd September 2011, 11:01
Mine never does :( I have finally accepted that even after 285 cam piper 4-1 and kamracing pipe + backbox, bmc cda,,,,,,,, need more valves :(

Really? Mines pops like mad and its a 1600 xsi engine (270 deg. cam), ramair foam filter on the inlet, 4-2-1 manifold, supersprint decat, supersprint race/straight through pipe and scorpion imola

JamesR
23rd September 2011, 11:09
Really? Mines pops like mad and its a 1600 xsi engine (270 deg. cam), ramair foam filter on the inlet, 4-2-1 manfold, supersprint decat, superspring race/straight through pipe and scorpion imola

That sounds lethal mate, no wonder it pops lol

Gandi699
23rd September 2011, 11:14
That sounds lethal mate, no wonder it pops lol

It is running the larger rallye/xsi injectors on the vtr injection setup however. Shouldnt think that would make too much difference

jfh92
23rd September 2011, 11:18
Aparently if u get a used manifold, the carbon makes it pop better :L

birchybalboa
23rd September 2011, 11:24
Really? Mines pops like mad and its a 1600 xsi engine (270 deg. cam), ramair foam filter on the inlet, 4-2-1 manfold, supersprint decat, supersprint race/straight through pipe and scorpion imola

Really, I thort mine would after the exhaust but no so picked the cam up cheap and had it fitted still no pops,,, would advancing the timing encourage it?

Gandi699
23rd September 2011, 11:28
Mine is running standard timing as its the normal xsi cam. The only thing not standard is the xsi injectors which have been popped into the VTR injection rail as the standard vtr injectors wont sit down in the head correct as they are too short.

birchybalboa
23rd September 2011, 11:59
Do the xsi use the early blacktop head with a wilder cam, I have a 4bar fpr to try now cam has been fitted may help.... Over fuled and bogged down before, maybe rallye injectors and the 4bar fpr is what I need,

Gandi699
23rd September 2011, 12:11
Yeah its a black top head - I believe the xsi head is the same spec as the rallye one, so more aggressive cam and harder green valve springs

Saxobea
23rd September 2011, 18:18
Mine pops well iv got Decat no middle box and a peco twin 3.5" back box

skitts
25th September 2011, 21:39
Mine doesn't pop if you stand still and rev it. but when i hit 5k it sounds raspy and bangs sometimes!

-shuggles-
25th September 2011, 21:57
As kam said, a well speced engine giving it some with pops,bangs ect sounds amazing but if it's a spotty cunt in mac D's reving his furio then it's lowest of the lows...

AL3X_
25th September 2011, 22:45
decat, manifold, blah blah blah. Its just unburnt fuel being dumped into the hot exhaust, ergo, overfuelling and killing your valve stem seals

Any truth in this anyone? Since fitting my decat manifold I get a few pop/spit type noises on gear change...no flames as far as I know but I wouldn't want it to be doing any harm. :/

Gandi699
26th September 2011, 10:22
Any truth in this anyone? Since fitting my decat manifold I get a few pop/spit type noises on gear change...no flames as far as I know but I wouldn't want it to be doing any harm. :/

I cant see how it would be doing harm - hows it going to alter the fuelling providing your lambda and the other sensors are all in working order? Stem seal changes arent too hard a job anyway

sje00
26th September 2011, 10:37
GSXR Tb's, Cat Cam 645, OMP Inox Grp A Exhaust, Janspeed Mani, Omex ECU.

http://www.youtube.com/watch?v=p87m6wms8eY&feature=channel_video_title

http://www.youtube.com/watch?v=ARpIUuRo5XI&feature=channel_video_title

http://www.youtube.com/user/sje106?feature=mhsn#p/a/f/0/R8-H53nRtSI

Richy_Rich
26th September 2011, 11:20
Hahaha. I was waiting for you to turn up......

Agreed with Kam & shuggles!

Mines pops like Fcuk. But thats down to

GSXR tb's, Newman ph4's, Supersprint Race system, Raceland Mani, Omex ECu & a decent map ;)

wicked-vtr
26th September 2011, 12:00
Any truth in this anyone? Since fitting my decat manifold I get a few pop/spit type noises on gear change...no flames as far as I know but I wouldn't want it to be doing any harm. :/

Truth be told I'm just jealous lol, piper 285's bmc, btb mani, btb exhaust and a pred ecu and no sign of it. Is be happy to change the vss every now and then for some nice pops and bangs. My main concern is damaging the lambda

AL3X_
26th September 2011, 18:00
I cant see how it would be doing harm - hows it going to alter the fuelling providing your lambda and the other sensors are all in working order? Stem seal changes arent too hard a job anyway

Same mate, well it must mean the cars running a bit rich if its popping I would of thought? Although spoke to a mate of mine who used to deal in highly tuned imports and he said running a little rich on a tuned car isnt a bad thing, all the high spec turbo cars etc do it....I just would rather not have to change the valve stem seals as my last car had this problem and its embarassing in the mornings to say the least lol.

Truth be told I'm just jealous lol, piper 285's bmc, btb mani, btb exhaust and a pred ecu and no sign of it. Is be happy to change the vss every now and then for some nice pops and bangs. My main concern is damaging the lambda


Its weird is that, mine used to do it ever so slightly and rarely just with a cat back system and induction kit, now with the 4-2-1 decat I get it quite often, sometimes lets off 3 or 4 pops in succession on a downshift form 4th to 3rd, if it was killing valve seals though I'd rather it not do it? Why would it damage the lambda? At least theyre a 2 min job to change tho haha

I dunno what to suggest on yours though mate aside from pouring petrol down the exhaust lol

wicked-vtr
26th September 2011, 18:04
Actually now that ive woken up fuck changing the valve stem seals, its a head off job! When andy fitted my ecu he said he could map it to do it but he said its a bad idea for the valve stem seals, i rekon it would do it i just dont give it enough stick lol

Alex16v
26th September 2011, 18:42
Mine doesn't do it much on its own accord, not as much as others I've seen.

Try gunning it right thru the revs in first and second, then when you get into 3rd, let the revs die down for a few seconds, then tap the throttle and it should let some beastly pops off!

AL3X_
26th September 2011, 18:55
Actually now that ive woken up fuck changing the valve stem seals, its a head off job! When andy fitted my ecu he said he could map it to do it but he said its a bad idea for the valve stem seals, i rekon it would do it i just dont give it enough stick lol

Init lol, and ahh I see, I suppose thats more because its kinda forcing it to do it, like messing with ratios etc, if it does it naturally that might be a different thing?

I don't really give mine stick to be honest though, if i gun it through first and second changing at about 5k revs, on the change I'll get a series of rasps as i change, kinda like when you rev your accellerator near the limiter, the pops more come on downshifts, or if i cruise along in second, upto about 3-4k revs, and tap the accellerator with short sharp blips...especially works on downhills...try that that might give you some popping lol.

saxdazza
26th September 2011, 21:10
mine does it.. 4-2-1 mani, straight through system, custom 3" backbox, induction kit and p+p'd head. get a nice rewarding pop/bang after letting off the throttle at around 4k in 3rd n 4th gear mainly

sje00
26th September 2011, 21:40
Mine has no extra fuel added. Just a retarded ignition on 0% throttle at a certain rev range.

Richy_Rich
26th September 2011, 22:09
^^^ what he said!

bbracer16valver
21st December 2011, 22:44
gota love gear change bangs :D

Furio-Gaz-Saxo
21st December 2011, 22:56
Hmm mine don't pop either, I have 4-2-1 manifold, straight through and back box...just won't do it at all


---
I am here: http://maps.google.com/maps?ll=53.733133,-1.652118

Tom5190
21st December 2011, 23:05
Mine does it like.

Did it before the cams too like.

Saxo Exhaust - YouTube

Oc2
21st December 2011, 23:46
My ST pops like hell, variable valves at 2000rpm, always seem to drop one right outside the one house as i come home, round the corner, bit of gas, let off to go round the next... POP POP

A SS fanimold and a decat will crudely do it on a saxo, as posted previous it does sum up saxo drivers though ;)

II_IFAN_II
21st December 2011, 23:59
My 1.1 pop's.... got a mk1 manifold, standard pipe and sportex back box..

logic_guy
22nd December 2011, 00:00
Now i have a S/s mani, it pops and bangs even more. Quite embarrassing.

I think the idea is for the exhaust + engine to be very very hot for it to pop and to catch the right rev.

I'm sure Sportex back boxes have that Rally sound and is supposed to pop and gurgle added to its characteristics?

mlawlan69
22nd December 2011, 03:14
kane the revs in 1st and 2nd then let off, and just let the car slow down gradually with a little help from the brake, des it on my furio with 421 and full supersprint :)

Carlvtr88
22nd December 2011, 09:07
i have a Mark two vtr. Much like logic guy said, Mines still 'at the minute' got the cat in the mani but it still Burbles nicely and pops quietly occasionally. I have a custom made stainless steel system.

II_IFAN_II
22nd December 2011, 09:15
I'm sure Sportex back boxes have that Rally sound and is supposed to pop and gurgle added to its characteristics?

Never thought of it like that tbh.. anyway got a video of it popping here.. (engine was cold when i did this.. i know i shoudent of reved i cold but i just got the exhaust and was exited lol):oops:
http://http://i811.photobucket.com/albums/zz36/II_IFAN_II/th_DSCN0213.jpg (http://s811.photobucket.com/albums/zz36/II_IFAN_II/?action=view&current=DSCN0213.mp4)

Gandi699
22nd December 2011, 13:09
Mine also does this even with very light throttle applications from cold or warm, any situation

bbracer16valver
22nd December 2011, 13:20
mine pops like someone set a shotgun off as you change gear if you change just before the limit though my limits nearly 8k ;)

CrouchyM
22nd December 2011, 13:25
Mine pops and bangs all the time, I've got a vts with a standard mani, supersprint centre section and Kam racing backbox. Only last night I tapped the throttle at about 5 k and I saw a flash out my side and rear window where it spat a flame.

Brettles1986
22nd December 2011, 13:58
Mine doesn't pop unless I let the car slow itself down from high revs and thats how I prefer it cos im not a child.

Barry123
22nd December 2011, 14:04
Mine pops/burbles at 1950 rpm whilst deceleration along with a noticeable increase in the engine braking - no idea why though

devilsadvocate
22nd December 2011, 14:19
I have a raceland mani, decat and janspeed system....mine doesn't pop :)

Barry123
22nd December 2011, 14:20
I think mine is an ECU fault or something...

jeffchiz
22nd December 2011, 16:02
Mine does it like.

Did it before the cams too like.

Saxo Exhaust - YouTube (http://www.youtube.com/watch?v=0xZmunmxreo)

does it like

thats amazing like

devilsadvocate
23rd December 2011, 07:45
Just De Cat and it will POP

Not always, mine is decatted and it doesn't pop

Cam
23rd December 2011, 07:51
Not always, mine is decatted and it doesn't pop

Really my vts decated pops bangs and crackels all the time, and i get good MPG aswell so carnt be over feuling much.

chinkostu
23rd December 2011, 08:13
most pop due to shit exhausts/overfuelling....

+1

since i botched the exhaust on mine, whenever it slips off, it pops like mad. burnt the underside of the heatshield!

Gazer
23rd December 2011, 11:48
Not always, mine is decatted and it doesn't pop

Mine was decatted yet didn't get no popping, But was over fueling a bit due to the crappy lambda in it wasn't a good one looked like a cheap one, so I tested it with my multi meter first then also put it on a diagnostics machine and lambda was reading rich mixture.

So i replaced it for a Bosch one was so much bigger than the old cheap on, plugged it back into the diagnostics machine and now was reading lean mixture.

Since changing it to the newish one it pops all the time changing gear everything, So don't think its always the case of having a rich mixture and is still saying lean mixture....

Pug106-GTI
23rd December 2011, 12:18
mine burbles and pops on downshifts and when i slow down to approach lights etc

standard manifold, cat in place, magnex backbox and pipercross open filter

think mine may be overfueling at all? lol

bigdazza
24th December 2011, 17:01
What a load of bollox sone people talk hahaha.. a tuned engine will of course do all the above !!! My vts OS running cams, Supersprint manifold, Supersprint race tube and a magnex box, plus some other engine mods, nothing serious, and it sounds the tits !!! Does what it says on the tin, goes little a little rocket, and sounds awesome...