Originally Posted by EuroCarFan' post='635460' date='Jul 29 2008, 02:57 PM

Sorry to beat a dead horse....but you are incorrect. ALL manufacturer's hp and torque numbers are at the crank. That's why people use dynos to get their wheel hp. I know dynos are subjective to a lot of conditions that's why they apply correction factors to normalize the numbers. The highest numbers I've seen have been around 430rwhp for a stock M6. Even highly modified M5s/M6s with mods like mine have registered around 460rwhp-480rwhp. If you read articles on modded cars they will usually tell you if they're quoting power at the wheels or at the crank and will also tell you what the manufacturer's crank hp numbers are for comparison.

And yes, I know about P400 and P500 on the M5.

Originally Posted by EuroCarFan' post='634261' date='Jul 28 2008, 10:41 AM

I have a couple of friends with the Vishnu tune and they really like it. I think the one thing that would be more preferable for the Dinan software is the warranty.

Originally Posted by pennetta' post='636358' date='Jul 30 2008, 08:38 PM

Now you made me look it up and you know what, you are absolutely correct. You just blew my mind. SAE J1349 standard, which I just found out is not a requirement for Auto manufacturers just a guide, is at the flywheel. This time you beat a dead horse and it came back alive. The best news is my 384 hp and 421 ft/lbs compares directly with the 550's 360/360, I thought I was at 343/380 in comparison. I've never been so happy being wrong.
Thanks for your persistance in setting me straight.

Originally Posted by alpinewhite' post='636389' date='Jul 30 2008, 09:02 PM

I was in a Dinan tuned 335, felt like stock.

Originally Posted by FRANK970' post='635446' date='Jul 29 2008, 01:22 PM

I am getting Dinan Stage II installed on Thursday on my 535i. I will post my opinions after the weekend. I am expecting a very noticeable performance improvement. We will see.

Originally Posted by EuroCarFan' post='636422' date='Jul 30 2008, 09:21 PM

Hey John,
To clarify, do you mean the the driveability is like stock meaning it's a good thing or are you saying you didn't feel any power improvement over stock? I was in BlackonBlackonBlack's (Wendell) 335 convertible with the Dinan software (sans the exhaust) and it pulled pretty strong. Granted I've never sat in a stock 335 to understand the baseline feel.