Pops 'n' Bangs

[swansea v6]

Had a drive in a friends 4.5 Cerbera this afternoon and the one thing that struck me, besides the STUPID acceleration, was the fact that everytime I took my foor off the accelerator the exhaust would pop and bang and even shoot flames now and gain..........why is this? is it something to do with unburnt fuel hitting the hot exhaust? how do you get your car to do this? de-cat i presume?

[madbadger]

Good innit.

Doesn't have to be a decat. Ammount of pops seems to depend on the exhaust that is fitted.

Can't help otherwise.

[dc53]

If you want it to spit flames you will need decat pipes and a sport exhaust, if you have decats and a normal exhaust the flmaes will not shoot out the back, in order to get the flames to shoot out the back you will need the sport axhaust so the flames will be directed throguh the pipe and they will show
correct me if im wrong......i think im going to use the im too tired excuse today

[Kinky]

Sounds identical to Gorvids sunday domestic electrical wiring - and flames too

[budaholic]

IIRC its something to do with the amount of valve overlap the AJP8 has. Unburnt fuel entering the exhaust and being ignited by the hot exhaust gasses from the next cycle of the engine.

I'll wait patiently to be corrected

BTW, My decatted 4.5 pops, bangs and spits flames like a dragon...... ask anyone that's ever followed me. I got sports pipes too, but MadMarks Cerb will spit flames and he has a standard exhaust. Only seems to when MrsMM is driving though.....

Bud

Edited by budaholic on Sunday 24th September 21:38

[cossiemetro]

buds sounds the dogz doodahs aswell hopefully mine will on thursday de-cat day

[dc53]

cossiemetro said:

buds sounds the dogz doodahs aswell hopefully mine will on thursday de-cat day

Cossie, trust me you will not regret it!!, as yours is a 4.2 i imagine that your will be an identical noise to ours, if so your going to be one happy man.
Oh and have you got a sport zaust too?
Dan

[Boosted LS1]

Not sure about this engine but on one of my projects it was overfuelling on the overrun. Fun at first but became a pain after a while. I had a Motec ecu so could get rid of it with the twiddle of a knob

Boosted.

[puffsorted2]

budaholic said:

IIRC its something to do with the amount of valve overlap the AJP8 has. Unburnt fuel entering the exhaust and being ignited by the hot exhaust gasses from the next cycle of the engine.

I'll wait patiently to be corrected

BTW, My decatted 4.5 pops, bangs and spits flames like a dragon...... ask anyone that's ever followed me. I got sports pipes too, but MadMarks Cerb will spit flames and he has a standard exhaust. Only seems to when MrsMM is driving though.....

Bud

Edited by budaholic on Sunday 24th September 21:38

I can vouch for that - was following Bud Thursday and it looked and sounded

[Tripps]

madbadger said:

Doesn't have to be a decat. Ammount of pops seems to depend on the exhaust that is fitted.

Yep, De-catting just affects the "quality" of the noise not the quantity. Mine went from pistol to shotgun after having the pesky cats removed.

[Socr8s]

I know that this is a stupid question but presumably you need at least one cat to pass MOT emissions. How easy is it to replace the cat prior to the MOT being done?

[Tripps]

Socr8s said:

I know that this is a stupid question but presumably you need at least one cat to pass MOT emissions. How easy is it to replace the cat prior to the MOT being done?

As I recall it was about 40 minutes work to plonk them on (then off after) for the MOT this year, but I've heard of tactics to get them through without re-fitting them.

You don't stricly need a cat to pass the MOT though I believe, but as TVR engines weren't really designed with much thought for emissions you need all the help you can get!

[funky]

Is there anyway to get these sounds and flames from a Sagaris?

[GOM]

funky said:

Is there anyway to get these sounds and flames from a Sagaris?

So you can singe passing pedestrians?

[Tripps]

funky said:

Is there anyway to get these sounds and flames from a Sagaris?

Possibly with the remap and the TVR Power sports exhaust.

We've a couple of Tuscans in our area which easily outshout my Cerb, so the S6 has certainly got the vocal chords for it

[mrsmadmark]

budaholic said:

MadMarks Cerb will spit flames and he has a standard exhaust. Only seems to when MrsMM is driving though.....

Bud

I find Tesco 99ron helps too

[cooky]

funky said:

Is there anyway to get these sounds and flames from a Sagaris?

Put an AJP in it

[budaholic]

cooky said:

funky said:

Is there anyway to get these sounds and flames from a Sagaris?

Put an AJP in it

[plug]

funky said:

Is there anyway to get these sounds and flames from a Sagaris?

I have a speed six cerb with cats and a act sports exhaust, it pops and bangs a lot, also been told by several people that it does produce lots of flames.

[funky]

GOM said:

funky said:

Is there anyway to get these sounds and flames from a Sagaris?

So you can singe passing pedestrians?

Would be fun wouldn't it