"I'm a idiot" engine maps - damage?
Discussion
As the fourth mighty Fiesta of the afternoon spat and popped its way past my house from its beast of a 1 litre engine it got me to thinking... Do "hey there, I'm a tosser" maps cause any damage to the car they are running on?
Obviously there are plenty of cars that occasionally flame and crackle on the overrun as a byproduct of the way they are tuned, but it's only an occasional thing... Whereas "crackle" maps are doing it all the time, and the people with them seem to relish getting on and off the throttle all the time to get their money's worth.
So, after a few thousand miles of this do these cars develop problems they wouldn't otherwise have had?
Obviously there are plenty of cars that occasionally flame and crackle on the overrun as a byproduct of the way they are tuned, but it's only an occasional thing... Whereas "crackle" maps are doing it all the time, and the people with them seem to relish getting on and off the throttle all the time to get their money's worth.
So, after a few thousand miles of this do these cars develop problems they wouldn't otherwise have had?
Unless it's causing scorching or something in the cat (assuming it hasn't been removed and mapped out) then I doubt it. It's just a flame in a place that's designed to be very hot. Maybe it'll cause issues with the lambda sensors? They say you have to be super careful with them during installation but then they go and shoot flames a few feet from them. Never got how that works..
Bathroom_Security said:
Phil Dicky said:
There's one such tosser a few doors down from me, who may well be getting his s
t car shoved up his arse after popping and banging home at 1am.
I bet you don't have the balls to confront him, instead you've come to bt car shoved up his arse after popping and banging home at 1am.h about it on a forum where its safe
Boosted LS1 said:
Unburnt fuel may not be good for the cat but it could be a while before it's damaged?
Youre right, it's not good for the cat and neither exhaust silencers which in some cases can literally blow them apart. This is how I know.... tuned (yes tuned) Fiat 126, ported and skimmed head, big Inlet manifold 28/36 twin choke weber and modified exhaust box (now need another one)
Take it to around 40mph turn off the ignition, pull on the choke lever and pump the throttle, switch ignition back on and usually its just a big bang. More rigouous pumping of throttle last time resulted in a small explosion leaving the debris from the exhaust box on the road behind me..
A1VDY said:
Youre right, it's not good for the cat and neither exhaust silencers which in some cases can literally blow them apart.
This is how I know.... tuned (yes tuned) Fiat 126, ported and skimmed head, big Inlet manifold 28/36 twin choke weber and modified exhaust box (now need another one)
Take it to around 40mph turn off the ignition, pull on the choke lever and pump the throttle, switch ignition back on and usually its just a big bang. More rigouous pumping of throttle last time resulted in a small explosion leaving the debris from the exhaust box on the road behind me..
Reminds me of my ancient Nissan Sunny, it had a badly blowing exhaust, and upon seeing a copper on the other side of the road, I switched off the ignition while I coasted past him, but left the car in gear. After a suitable distance I turned the ignition back on, and ignited all the unburnt fuel now in the exhaust. Very stealthy.This is how I know.... tuned (yes tuned) Fiat 126, ported and skimmed head, big Inlet manifold 28/36 twin choke weber and modified exhaust box (now need another one)
Take it to around 40mph turn off the ignition, pull on the choke lever and pump the throttle, switch ignition back on and usually its just a big bang. More rigouous pumping of throttle last time resulted in a small explosion leaving the debris from the exhaust box on the road behind me..
To achieve it you cut the fuel injected on closed throttle slightly over the base value (assuming you don't have overrun fuel cut applied which cuts 100% fuel so cant do pops and bangs), you also retard the ignition and open up the idle control valve or if electronic throttle open the throttle slightly.
That fires the fuel later than normal so the engine doesn't produce any torque, but instead fires the fuel late, making a racket in the exhaust system. Compared to under normal load the energy is much less, what you have to be careful of is getting the EGT's elevated by not matching the airflow and fuel, you really need an EGT monitor that cuts the pops and bangs function if the EGT's climb too high.
If done properly it shouldn't damage anything, if done poorly you can destroy the exhaust valves, exhaust headers, turbo and cat.
I hate it, totally antisocial bag of spanners, just like stupidly loud exhaust systems.
That fires the fuel later than normal so the engine doesn't produce any torque, but instead fires the fuel late, making a racket in the exhaust system. Compared to under normal load the energy is much less, what you have to be careful of is getting the EGT's elevated by not matching the airflow and fuel, you really need an EGT monitor that cuts the pops and bangs function if the EGT's climb too high.
If done properly it shouldn't damage anything, if done poorly you can destroy the exhaust valves, exhaust headers, turbo and cat.
I hate it, totally antisocial bag of spanners, just like stupidly loud exhaust systems.
donkmeister said:
As the fourth mighty Fiesta of the afternoon spat and popped its way past my house from its beast of a 1 litre engine it got me to thinking... Do "hey there, I'm a tosser" maps cause any damage to the car they are running on?
Obviously there are plenty of cars that occasionally flame and crackle on the overrun as a byproduct of the way they are tuned, but it's only an occasional thing... Whereas "crackle" maps are doing it all the time, and the people with them seem to relish getting on and off the throttle all the time to get their money's worth.
So, after a few thousand miles of this do these cars develop problems they wouldn't otherwise have had?
Haha... I very nearly started a thread of similar vain yesterday. Saw a fiesta yesterday drive in front of me at a RaB. After just exiting the RaB... sounded like a fObviously there are plenty of cars that occasionally flame and crackle on the overrun as a byproduct of the way they are tuned, but it's only an occasional thing... Whereas "crackle" maps are doing it all the time, and the people with them seem to relish getting on and off the throttle all the time to get their money's worth.
So, after a few thousand miles of this do these cars develop problems they wouldn't otherwise have had?
king shot gun, and not once, about 6 times.Literally everyone with a fiesta/focus/Astra near me has this s
tty mapping that quite frankly is laughable.I understand, get your car mapped... mines mapped... but it doesn’t need to have that w
ky stty pop pop bang bang bks. Gassing Station | General Gassing | Top of Page | What's New | My Stuff