Does anyone have information on best ECU Computer chips available, or when the John Cooper Works chip will be available for the Cooper S. I called my dealer and they had no information.

 

Bang-for-the-buck, looks like you are best off with the programming that came with your car. At least for now.

I have the MTH programming and it gained about 4whp. I haven't seen any independent results showing much more than 4-6 whp from any of the chips on the market.

 

I agree with Andy. We haven't seen any real gains yet - more than 6 or 7 hp - with or without the pulley (but the pulley alone makes a significant difference, about 16 hp).

We are working on solutions from many different angles - APR, EVOTech, Hartge, and others.

As far as the JCW software, it has been optimized for the pulley, and so far as I've been told, won't be offered separately to those who have aftermarket reduction pulleys.

As soon as we have found any effective software, MINI Cooper Online be the first to know!

Randy

 

Randy, has APR gotten back to you yet about the DME? APR has only done tuning on two engines, the 1.8T and 2.7T VW/Audi motors. They have Bosch Motronic 5.x and Bosch ME-Motronic 7.x. I haven't heard of them even doing any research with other engines, let alone Siemens units.

 

Andy,

Not yet - they will get the unit on Tuesday, and I should know if they can work the code by Thursday.

You're right in that they have only done Bosch - that's why we have to send them a box. They seemed to think that even if the code wasn't compatible with Bosch (and I don't think there is even a chance that it is), they still may be able to break it and do development. If we find out they can read and change it, there are already a couple of cars lined up to send to Alabama in different stages of tune to set up the base curves. I'll keep everyone posted.

What did you change when you did the work through the MTH programming (and how does that work, flash through the OBDII)? It looks to me like we need to reduce the timing slightly and lean the mixture a bit.

Randy

 

I downloaded MTH's software from their website. Using a standard ISO-9141 interface connecting the serial port on my laptop to the diagnostic port under the dash in my MCS, I downloaded the stock file from my car's DME. The file is about 60kb, clearly only a portion of the total flash memory. I sent this file to MTH and received a modified file that presumably advanced the timing and definitely increased the rev limiter from 6950 to 7300 rpm.

I have requested eight performance maps to try (three levels of injector pulse widths, and three levels of ignition timing advance). When I get them, I'll see what results those have on the dyno.

It takes 6 minutes to change from stock to "chipped" or vice-versa. I have done so at least 20 times now. The revision counter in the DME is indicating that it has been flashed once.

 

Andy,

Do you think we may see more power by actually reducing the timing slightly to avoid having the knock sensor control the ignition curve rather than a set program? I was thinking if we could do that, we may avoid some of the "wavy" lines we see above 5000 RPM and be able to take more advantage of better A/F ratios.

How much was the MTH modified file?

Thanks,
Randy

 

Andy,
Did you use your prototype program through the OBD port? Or is this using Bim-COM? I assume it is your "not ready for prime time" prototype diagnostic program. This is something that Randy and I would love to have. My birthday is in May.
Sol

 

Wavy plot? What's that?



The MTH software is completely unrelated to the BiM-COM stuff. I just used an interface we had lying around. Randy, you'll need to contact MTH about pricing.

 

May 5th BTW

 

BiM-COM is definitely coming, but it won't be a saleable product by May 5th.

 

Can anyone tell me the URL of the MTH Software, and also where I can buy a standard ISO-9141 interface.

 

>>I agree with Andy. We haven't seen any real gains yet - more than 6 or 7 hp - with or without the pulley

So are the numbers for the EVOTECH that MINI Madness sells not accurate?

 

ozmale wrote:
See this page for both:

http://www.mth-powerchip.de/e_index.htm

LifeIsGood wrote:
The figures appear to be significantly lower when independent customers are testing the EVO.

 

Wondering if there's any comparisons out there about this:
So far I haven't seen any... very curious to see some side by side results... I like what I've read about MTH but I haven't seen any charts.... With Webb coming to LA again next month I'm trying to make a decision on this...

 

How much hp gains are being made (in total) with the MTH chip on a pullied S (19%)? Also, would you have more of a noticeable difference with an intake over Computer Software?

 

personally i had better gains through a chip, ive always felt a loss at the low end with my alta intake, but the chip always just seems to squeeze a little power out everywhere

 

Not to mention the chip provides for a smoother idle and smoother acceleration does it not... And theres always the others positives like lowering or raising your redline, taking out the speed governor, etc.