Another Remap...

[Smiler AS]

Will be going for another remap soon on my WRX. Ive heard about a few people getting an

"overun feature" enabled (I know sounds like a cheat on PS game!) to give more pops and bangs

- in basic terms what is it and is it doing harm to the engine?

I do like the odd pop bang and even the odd flame when running with no cats but dont want to do any damage?

Any thoughts and opinions?

Edited November 28, 2008 by Smiler AS

[wilky]

Will be going for another remap soon on my WRX. Ive heard about a few people getting an

"overun feature" enabled (I know sounds like a cheat on PS game!) to give more pops and bangs

- in basic terms what is it and is it doing harm to the engine?

I do like the odd pop bang and even the odd flame when running with no cats but dont want to do any damage?

Any thoughts and opinions?

It amused me for about a week and then drove me crazy and made other road users especially motorcyclists extemely upset, making me stay below 2000rpm, if your not careful as well the polizei get a bit tired of it as well.

Callum W

[Smiler AS]

It amused me for about a week and then drove me crazy and made other road users especially motorcyclists extemely upset, making me stay below 2000rpm, if your not careful as well the polizei get a bit tired of it as well.

Callum W

Yeh, good point.

I only tend to be using the car now and then as have got a daily runabout so not too bothered about getting tired of it,

plus I stay out of town too.

Is there varying degrees it can be setup too or is it just all or nothing?

[wilky]

Yeh, good point.

I only tend to be using the car now and then as have got a daily runabout so not too bothered about getting tired of it,

plus I stay out of town too.

Is there varying degrees it can be setup too or is it just all or nothing?

There is, and your mapper can advise you on it.

The previous owner of my car had the full monty ie, as severe as you can make it. I always knew that I would eventually be changing my engine management so i have put up with it until now, however I have changed the oil very regularly just incase fuel was contaminating it because of the overrun. There is no evidence of this ie increases in oil level but I did get the odd whiff of fuel from old oil and hence my concerns.

I would not have it again, because of the public nuisance factor.

Callum W

[scoobzie]

get it done sounds the b******s

[rallyfever]

Hi All,

I presume Andy F would do it, any ideas of the costs involved???

Cheers

Gary

[Smiler AS]

Hi All,

I presume Andy F would do it, any ideas of the costs involved???

Cheers

Gary

Yep , planning on going to Andy F as he done my orginal remap and Ecutek license, no idea on cost yet,

wouldnt have thought it would be much more on top of a remap.

[paul555sti]

It says on his site after the first map any subsequent maps are 195 plus vat. You would be best sending him an email to find out what he would charge.

[scoobyiain]

Doesn't cost any extra when getting mapped. Andy done it to my car when mapping it and the noise depends on the exhaust system, i had an afterburner vortex which is loud anyway so pops and bangs were pretty loud. So loud infact i got a couple of ASBO's!

Check the bolts holding each section of the exhaust together every so often as they may begin to come loose, apart from that there is not really anything you should be concerned about.

[corsa]

Go for it, great fun and great effects, mines bang away like Wilky on a Friday night and flames on overun as well.

Will look at getting a wee vid up over the weekend on the poppin.

Regards

Davie.

[rallyfever]

OMG My wife is gonna kill me - just e-mailed Andy F for a price and date of when he can do mine, WRC spoiler getting fitted next week, pops and bangs - whatever next??? Only been married 4 weeks tomorrow - so glad she loves driving too!!! Not sure enough to buy the merits of this investment though!!!

[RS Grant]

Pops and bangs are good banter... if I used my car everyday then I'd have gone for diet pops and bangs, but I also went for the full fat effect.

Here's a clip of mine at standstill, its actually a fair bit more agressive when actually driving...

Cheers,

Grant

[marky.t.s]

i wish i had pops and bangs , that sound very nice Grant

Edited November 28, 2008 by marky.t.s

[rallyfever]

Very moist now Grant - cannae wait!!!

Cheers

Gary

[scoobyiain]

The start of my video has the pops and bangs http://uk.youtube.com/watch?v=ylkDbt4uHNw

[euan_r]

ive heard of true anti-lag eating exhaust valves. while pops and bangs are different to the real deal, i would be cautious.

maybe some of the gurus could dismiss or confirm?

richs car is getting heads replaced due to disappearing valves.

[rallyfever]

The anti lag systems do put a massive amount of pressure on the Turbo's and stress the engine and exhausts, my rally car had it and it did make a huge difference to the performance of the car in a stage. Not sure the pops and bangs are anything near the severity of the anti lag system from GEMS. Maybe Andy F will advise me before I get him to do mine - but I would say it's a sure fire thing he will be fettling my ECU to engage a few noises.

Cheers

Gary

[ScoobySounds]

Do the pops and bangs use up more fuel?

[scoobyiain]

Do the pops and bangs use up more fuel?

Yes!

[ScoobySounds]

Oh Well! haha

[rallyfever]

The reason it uses more fuel is that the fuel is pushed through quicker on anti lag systems and any unused fuel is chucked out the the exhaust usually in the form of flames - not burned off in the engine where it would normally produce bhp and torque.

The way I look at it is if you worry about the odd MPG - you're in the wrong car!!!!

Cheers

Gary

[cullenmin]

richs car is getting heads replaced due to disappearing valves.

And cracked cylinder heads.

Could be a number of factors though. I don't think the pops and bangs would do it.

Get the full monty pops and bangs. I can't wait for the next Moray Run

[Smiler AS]

Wont do it if it causes damage, but as you say thats prob down to a proper anti lag system.

Just wouldnt mind a few more noises, especially after some of the comments through at Japerformance RR day a while ago.

[scouk]

Wont do it if it causes damage, but as you say thats prob down to a proper anti lag system.

Just wouldnt mind a few more noises, especially after some of the comments through at Japerformance RR day a while ago.

What mods did you have at the RR? I remember you said you had the Turbosmart DV fitted.. what cats were in place at the time?

(Still browsing Dump valves... Toying between Turbosmart dual port and GFB stealth FX.. Both VTA & Recirc valves and both on the silly side of £200

Back on topic....

Any mod causes damage the remap kinda brings it back to normal again.... Pops amd bangs are, as mentioned earlier about overfuelling on low/no throttle (I think), somethign which is tricked briefly with a VTA Dump valve. As you lift of sharply on boost the engine is briefly overfuelled as air is vented and not plumbed back into the intake as the fuelling system expects. So the same amount of fuel is pumped in but not the expected amount of air, giving you a very rich cycle whcih goes through the system and can result in the pop/bang on immediate lift off. Not reccommeded if cats are in palce and your basically saturating them with fuel/flames ...

Anti-Lag is somethign different, basically dumping fuel on the exhaust so it burns and puts pressure through the exahust system to keep the turbo spinning..

Pops and bangs will do damage long term as it's basically overfuelling the engine slightly at the point of lift off (Please correct me if I wrong about this) therefore putting extra heat on engine components, exhaust, any cats left over and turbo..

In sayign that I'd probably have them too... But on a dual-map setup so I had my sensible mode and silyl mode with the pops n' bangs..

Edited November 29, 2008 by ScoUK

[corsa]

You could do what Mr F did for me, instead of the throttle position returning to Zero at lift off it stays at about 4% which is just enough for the almighty bangs!!!

D