Posted these up on the other forums but figured I would post them up here. I will be adding to these with FBO on 91oct, FBO w/ Meth on 91, FBO on e85 and FBO w/ Meth on e85 once I find a good place to get some logging done. I moved since I did the originals and everywhere I go to log, I can get 1-2 runs in before police start camping out on the road. Also will be getting on a Dyno soon to get a new baseline and new actual Dynos to compare to VD.

So Ive been curious as to the differences between the MHD OTS Maps vs the JB4 + Backend Flashes, so I decided to do some testing.


Car: 2009 335xi
Mods: Intake, LPFP Stage 2, NGK Plugs
Stock FMIC, Stock DPs


Bought the MHD Stage 1 OTS Map v4 and the MHD e40 OTS Map v4 and used the latest BMS Pump and e85 flashes. Used 91oct for the stock, Stage 1 and Pump + JB4 M5. ~e40 blend for the e40 map and e85 + JB4 M7.


All runs were on the same road, started at the same spot and I tried to start at the same RPM for all of them.


For the Stock Log it was about 85 degrees ambient
For the 91 Logs, it was about 85 degrees ambient
For the e40 Logs, it was about 75 degrees ambient


Did my best to let the car cool down between runs and between Map Changes. For the 91 runs, I flashed MHD Stage 1, then did the BMS Pump after. For the e40 runs, I flashed BMS e85, then did MHD e40 after.


Review:
MHD Stage 1:Had some low throttle issues, but once I got on the gas, throttle was smooth. No complaints, however it is definately a Stage 1 tune in all sense of the word. Can tell a small difference in power vs stock, but would leave me wanting more if this was my tune. Max Boost 14psi 319whp/349wtq


BMS Pump + JB4 Map 5:None of the low throttle issues, and definitely had more power than the Stage 1. However, this combo was boosting to 16psi vs the 14psi of the Stage 1 so that is the difference in power. I chose the Map 5 vs Map 1 or 2 since that is the Map I have used since I bought the car. Max Boost 16psi 346whp/382wtq


MHD E40: Lots of POWA!!! No throttle issues with this map. Noticeable difference vs both 91 octane maps. Timing was fairly stable until the upper RPMs where Cyl 5 dropped timing a few degrees. Timing curve followed a different curve than I am used to however. Started high and slowly declined. Max boost ~18.5 392whp/425wtq


BMS e85 + JB4 Map7: Pretty much the same as the MHD e40 in driveability and feel. Timing followed the curve Im used to with my car, where it starts low and slowly builds. Max Boost - Just under 20psi. 385whp/449wtq


Overall, if you are running an e40 blend, either option isnt a bad choice. Not much difference in terms of power.


Below are some Virtual Dynos to show a comparison. I calibrated the VD by using a baseline I have of my car on a Dynojet where I put down 271whp. However the wtq number of 308 shown in VD is high by about 20. I put down 285wtq. So keep that in mind with the torque figures.


1st Graph has stock vs 91 vs e40 (All Maps)
Click here to enlarge


2nd Graph has stock vs 91 maps
Click here to enlarge


3rd Graph has Stock vs e40 maps
Click here to enlarge


Last Graph is 91 maps vs e40 maps
Click here to enlarge


Stock Log on Datazap
http://www.datazap.me/u/csu87/log-14...log=2&data=1-4


91 Logs on Datazap
http://www.datazap.me/u/csu87/log-14...log=1&data=1-4
http://www.datazap.me/u/csu87/log-14...log=0&data=1-4


e40 logs on datazap
http://www.datazap.me/u/csu87/log-14...log=0&data=1-4
http://www.datazap.me/u/csu87/log-14...log=1&data=1-4




Take this for what it is. I wish I was able to do all this on an actual dyno, but I didnt feel like paying several hundred to rent out a dyno. Ill add a 100% e85 log tomorrow. Ran out of daylight to do it. If someone has a Map for e60+, give it to me and ill compare it to e60 with jb4. Not really wanting to pay much for a map that Im not going to use. Already spent $80 on Maps.