Superchip

[firstcar_205gti 2 1 Cars]

hi all going to view and hopefully buy my second car tomorrow, the car comes with a superchip which has not been fitted and was wondering what benefits i would get from it if any? and if it woud need setting up or anything.

[GLPoomobile 958]

The only benefit you'll get from it is if you manage to punt it on eBay to some other poor mug.

[firstcar_205gti 2 1 Cars]

haha really ok then just get flog it on ebay

[BlueBolt 156]

haha really ok then just get flog it on ebay

 

I just got £27 for one on there... Well, just under...

[MrMemzi 12]

Everyones views vary. I enjoy my superchips ecu. It delimits and maybe adds a pony or 3

[dcc 855]

Mr Memzi could you explain how it possibly adds power to an engine? As far as i know, and from what I have read, it just over fuels the engine and makes iot bog down slightly. no power gains, infact, power losses. back to back tests on same car/engine.

[tunnicliffe 1]

I had a superchip on my old 1.9 you had to take apart the ecu and desolder the EPROM chip and solder in the new remapable superchip and then have it set up on rolling road used to add about 10 bhp. Not one of those things you get off eBay that plugs in air temp sensor.

[welshpug 1,657]

if you actually found an eeprom inside your ecu you would have had the rarer motronic ecu, on a 122 bhp cat equipped engine, though not impossible, tis quite hard to believe you saw a repeatable 10 bhp increase with a chip.

 

however the most common ecu used on these engines would be the older clockwork ecu, in hich case there wont be much of a "chip"

[Miles 331 1 Cars]

The superchip I have seen a complete 1bhp increase but then again doing another RR run would no doubt have the same effect, they do no delimit the engine either this has always been left alone by them

[petert 587]

Are we talking about Jetronic or Motronic here? I use to change resistors in Jetronic ECU's to change the fueling. I still can if you want me to.

[tunnicliffe 1]

i take it i didnt find an eprom chip in the ecu as mine was a1991 1.9 and didnt have a cat.ijust said it was eprom because used to changing them on 106 and 306. it was the chip that had the fuel map in it i suppose? when it was changed it felt alot stronger in the middle of rev range but didnt adjust the rev limiter

[MrMemzi 12]

I have no idea but just by driving it its different. Not every 205 is the same as we all no. Mine seems to go better with it. And mine de limited. Until you try it you well never no.

[dcc 855]

I have tried it, and it did 'over fuel' my engine. i removed it within minutes of fitting.

[MrMemzi 12]

I guess the "superchip" differs. Over fueling aint always a bad thing if you advance the timing so im told?

[welshpug 1,657]

over fuelling is always a bad thing.

[MrMemzi 12]

Not on diesel motors

[welshpug 1,657]

yes, even on diesel motors.

[MrMemzi 12]

I had a rover 220sdi with the egr blanked and a tuning device set to over fuel. s*it mpg but was a sleeper. Chucked out the blackest smoke ever tho! You the god of all cars? Do u no anything about hydrogen and running a car on water? Not being sarcastic as it sounds btw

[welshpug 1,657]

black = unburnt fuel, aka wastage.

[GLPoomobile 958]

Over fuelling is only of benefit if you have the additional air to get the correct mixture, and the timing etc set up to cope. By which time you've then balanced things out and you no longer have an "over fuelling" situation. It's all down to semantics at the end of the day - over fuelling is exactly that, and it's no good. Adding more fuel but making the necessary adjustments elsewhere is good. I suggest you go and do some homework on the basic principles of how an internal combustion engine works and about basic tuning. And I'm not being sarcastic either.

[MrMemzi 12]

So ur agreeing with me technically? That overfueling is not always a bad thing

[BlueBolt 156]

So ur agreeing with me technically? That overfueling is not always a bad thing

 

No what he's saying is that by the time it's made to be an alright thing then it's no longer overfueling...

[GLPoomobile 958]

So ur agreeing with me technically? That overfueling is not always a bad thing

 

No I'm not. Technically, it's not a good thing.

 

As I said, adding more fuel is not the same as "over fuelling". Over fuelling is a term that describes the situation when you have too much fuel in the mixture.

[MrMemzi 12]

Ah got me there! I guess i used the wrong terminology!

[dcc 855]

if overfueling was a good idea then I would have fitted my 457cc injectors to my 205! As it was not any benefit I chose to use the better spray pattern of the gti6 injectors... which flip all sorts of fueling theories upside down