FFM

Haha that thread was posted by my friend Marshall, who do you think let him know bout the tune

iH8RICERZ

iTrader: (3)

Since our cars doing have to go on the sniffer anymore, I would assume it would pass if the car isn't throwing any codes and it passes the visual. Don't quote me though

jjdurrant

Just curious why it took so long for someone to "crack" the ECU? Was it just lack of interest\supply on the tuners part? I had heard before I bought the car that it was the fact the ECU on the US models was locked, encrypted, etc or something so it wasn't even possible to modify. I am ecstatic that RR supports us and has put in the work. . Just curious on more background and how it came to be.

PS... and to what danger do we have with the dealer overwriting it whether accidentally or purposely? I bring this up because it was a common issue on a Caliber SRT4 I had.. same situation.. company did remote ECU flashes but dealer would routinely overwrite when the car was brought in for work as manufacturer updates became available. This may be a non issue with the ISF but I wanted to still bring it up to make people aware.. and will RR honor a reflash as needed? Is RR making any cosmetic\marking on the ECUs as they are flashed?

DaEvilG

List
1. Isfpower
2. MileHIFcar
3. jjdurrant
4. Meanstreak
5. Rickna
6. Cmsal168
7. Evil Teo
8. CelicaGT4
9. Biggu
10. wmjeffreyw
11. Gymkata - don't leave me out
12. mikersoft
13. tas02 (lucky 13)
14. daevilg

96300NAZ

Lack of interest and knowledge in the community. In a similar example look at gaming consoles. Specifically the PlayStation 3. Sony did a great job at locking down the console to prevent people from running unofficial software on it. It took hackers months and months to find a way to exploit the console, tricking it, into letting someone load a reverse engineered and modified software to allow unofficial software to be loaded and ran. How they did it was difficult but simple. Anything that talks to the processor had to have security hashes that would match up with the expected hash. Drawing from memory here... They had 3 keys. Private Key, Unique Key, and Random Number Key. Once they figured out what they were looking at they figured out someone got lazy and made what was supposed to be a randomly generated number key a hard number. The unique key is console specific and they found it quickly. With two of the 3 they were able to get the third by process of elimination. From there, now that they had access to read what was being sent to/from the processors on the board they figured out how to write to them. And a few months later people were running home made software and copy protected games on their consoles.

All electronics work in a similar manner honestly. If you can't get through the normal bus, in our case the OBDII port, you open up the ECU and start reverse engineering. Find the spec sheets for the various chips and determine what processors are what. All processors and chips have test ports/pins. JTAG, etc. It's how they verify that it was assembled correctly. Start listening in on those pins and with the expertise to decipher what's being said and replied back with you can find yourself with full access. Find a way to upload the OS, kernel, etc from the ROM(s), decrypt/decipher it and you now have the tools to tune it. Whether they have their own software now or found a way to build a map in a RomRaider type opensource tuning software is what I'm curious about. That's an abridged version, but that's the gist of how its done.

If I were a speculating man, I'm thinking that's how they did it. Rafi posted a swirled picture of them interfacing directly to the mainboard in the ECU. Developing their own tuning software would be too costly. They used test points on the ECU to get in and decrypted it for use in an opensource or another popular tuning software their tuner already had access to. Which makes me curious if they have the same ability as TIS to reflash via the OBDII port now... Or if they had to piggy back off of those test points to reflash. Regardless now that the deed is done they hold the "keys". Whether they keep those "keys" or find a profitable way to allow us to fully tune our own cars without having to send an ECU everytime is up to them...

Regardless, I'll be buying the tune.

Vervish

iTrader: (4)

I think the intro of the RC F made the market more appealing for tuners. Its is all about demand IMO.

toyer14

I had a caliber srt4 before my isf 2

Joker4096

iTrader: (2)

Rafi, I'm not sure if it was asked already, but was the part throttle tuned for street driveability? Did it need to be tuned?

eddyisf

I'm in

List
1. Isfpower
2. MileHIFcar
3. jjdurrant
4. Meanstreak
5. Rickna
6. Cmsal168
7. Evil Teo
8. CelicaGT4
9. Biggu
10. wmjeffreyw
11. Gymkata - don't leave me out
12. mikersoft
13. tas02 (lucky 13)
14. daevilg
15. Eddyisf

ISF_GG

iTrader: (2)

Unfortunately not where I go for smog certification.

chrisp1

I was wondering what the response would be by the bmw guys. True car guys are pretty cool/respectful regardless of the make of the car they drive

Supraman16

iTrader: (5)

Still patiently awaiting info about what this ECU tune will do for a stock or catback only ISF....

Katin2

Agreed as I have the hps intake and borla exhaust. I'm pretty sure we'll know soon.

SoulFreak

iTrader: (1)

I found the post...lol...I found it quite interesting to read...thanks for chiming in for us. Honestly, like another member mentioned, a true enthusiast would always respect its fellow competitors. Regardless of make or model. I still admire the M3, I just can't stand the arrogance of some of the owners. Either way, I'm glad I have my F.

ISF_GG

iTrader: (2)

That makes two of us