As you guys can see I'm a newbie. I just bought a new '05 Limited about 2 weeks ago. ;-) Not sure when I will spring for an ecu upgrade but I thought it would be a good idea to see if anyone knows anything about the inmotion chip. I saw their ad on ebay and here's the link:

http://cgi.ebay.com/ebaymotors/INMOT...59551631QQrdZ1

 

is this an advertisement ad? kinda strange first posting there. anyways there already are credible chip tuners on the market. i tend to ignore most all products sold on ebay. it's usually junk.

 

Ditto
I'd be very leery of sending my money, and my chip to somebody on ebay. If they damage or screw up the chip your looking at big bucks to get a new one.

 

I'd be interested to know just how many individual versions of modified MB320 ECU code there really is. My experience of this (not just for the xfire) is that there are one or two companies actually doing the real development, then their code gets 'distributed' around the industry and appears for sale by outfits that have little more than a laptop, EEPROM programmer and a solder rework station.

 

yes you are correct.
MKB has developed an ecu reprogram for all the benz distributors.
(Renntech)
(kleeman)
(Startech)
(Carlsson)
I also believe that evosport did not copy the reprogramming done by MKB... other than that its all pretty much copies of their work... at least what is commonly distributed...

 

That ad looks very generic to me. Look at the bottom and you will see a whole others just like it for different cars. If you're really interested in their mod, e-mail them and ask to see before & after dyno runs from a Crossfire (they *did* dyno test one, right?). If they are anywhere close to reputable, they should provide one to you without hesitation. Any other response should cause warning bells to start ringing!

There was a thread here a while back where some guy was hawking his chip upgrades and was unable/unwilling to show dyno runs. He went round and round with us making excuses about why he couldn't show a run and it finally turned out that his chip mod had never been tested on a crossfire. It was an SLK320 program they just copied over. (if I recall correctly). Remember, our cars are BASED on the SLK320, but is NOT and SLK320. There are differences in hardware and software. So unless it was designed for & tested on a Crossfire, I wouldn't touch it with at 10 foot pole.

 

I have followed most of the threads here concerning chip tuning for our cars. To the best of my
knowledge, no company has been able to show a dyno specific to the Crossfire...

 

Good advice guys, if I do it I will go with proven suppliers. Can the mods to the ecu be detected by the dealership if I need warranty work?

 

Um... not really they wont be checking that so they won't find it, but they might accidentally reset it.

 

It also depends how it was done. If they reflashed the it through the CAN bus on the main connector then there is no visible sign, but they could tell if they verify the firmware against the standard code. Its very unlikely that the dealer would do this unless they suspected something and wanted to prove it had been done.

If they opened up the ECU to remove the processor and swap it out for a reprogrammed one then they would see evidence of a broken seal on the case and the reworked soldering on the board. But lets face it most of the dealers can't even diagnose simple problems on these cars so the chances of them looking, and actually finding something are pretty remote.

 

I've been looking into ECU upgrades, I've talked with RENNtech, Kleeman, UPsolute and the one on e-bay called Inmotion. Renntech tells me an ECU will only gain 12 to 15 HP, but if you buy their pulley kit too, you can gain 45 HP on the SRT6. I personally find it hard to believe that the pulley kit could gain you 30 more HP just going by knowing that the supercharger is pushing 15 PSI and thinking the pulley kit shouldn't be pushing over 3 to 5 more PSI, I would think anything over 20 PSI would be hard on the engine. I started a thread on the SRT6 part of the forum looking for anyone that had done just an ECU upgrade, no luck in any responses yet. I also read somewhere on the forum that a guy with a regular coupe had an ECU upgrade and said he could tell a difference, but he did have some spark knock. Inmotion has started a forum, I joined and made a post titled searching by 05SRT6, their address is in the thread I started if anybody is interested.

 

I've owned 3 Miata's all with aftermarket FI kits on them. Two turbos and one supercharger. My personal experience with them is you gain about 10 hp at the wheel for every lbs of boost on a properly tuned 1.8L Miata motor. As a result, I would say significantly more power can be gained with more boost on the much larger displacement XFire SRT6 motor.

 

Eracer76 has responded to a PM I had sent him, he has the ECU and pulley kit from RENNTech. His opinion is the same as yours, that 3 to 5 PSI does make a big difference, I've never owned a car with turbo or a supercharger before now. I would have thought it would have took 8 to 10 PSI to make much difference in HP gains, looks like I'll be going with a RENNTech kit as soon as I can afford it.

 

Steve, you will not be sorry. The SRT can surely handle an extra 45 hp very easy. Good luck!

 

What performance characteristics was noticeable with the UPsolute chip mod?

 

A ‘perceived’ seat of the pants feeling of added torque. I have no before or after figures,
nor have I raced a stock Crossfire to substantiate any improvements.

There has been much written about the Upsolute upgrade on this forum. At one point,
one of the Upsolute reps was on this forum trying to offer a group buy. The question of
proof of added HP gains from a dyno was raised repeatedly. The rep could not come up
with proof and declined a forum member’s offer to share in the cost of getting a car dyno’d.
Since then I believe most people have been very reluctant to spend the $400 plus to have it
done.

Your best bet would be to do a search and read up on the subject before spending the money for
the chip upgrade. You may want to start a thread/poll asking opinion's from folks 'who have
had' the upgrade. One person that comes to mind to ask is HDDP. He into racing big time and
had his car chipped with another company.

Would I do it again? I really can‘t answer. Part of me say‘s no, and the other part say‘s go
for it.

Let us know what you end up doing…

 

That's all BS the system thats on their page is called a BDM in know I own 2 each from different companies. That system CANNOT BE USED FOR FLASHING THE CROSSFIRE ECU. This guys is a fraud...BDM is the new style programming systems used on vehicles that contain the data sections in the processor. Guess what guys the crossfire has its data on a separate eprom and not in the processor. there is a flash system that available however its also 12 thousand for the box you still need the tools for modifying the dme such as checksum correction etc...

I would stay away from ebay chip tuning it will save you money up front cost you 1,000 times later.

PS - We have provided all the results today for our software upgrade look at the other thread.

https://www.crossfireforum.org/forum...ad.php?t=13721

 

inmotion will be obsolete.

 

hahah after SI stood place on this forum.

inmotion is out of motion.