REKIII Posted March 31, 2014 Author Report Share Posted March 31, 2014 I was up by the car Friday. Unfortunately I had to do a bunch of work to my beater truck, so I only had limited time on the M. I did get to look at mounting options for the lifter air tank and pump. If I cut the divider out between the battery box and M-mobility well, I can drop the tank assembly in and have it live completely below the floor of the trunk.....completely hidden!! Then I think the battery will go in the left side of the trunk where the CD changer is now. I removed the entire windshield washer system. No need anymore. Wife was pissed about that....not sure why, but she had a fit when I told her that. We discussed the final mock-up of the headers. They are extremely tight. The builder said these are easily the most difficult headers he will ever create, and not by just a little either, as he says. The charge pipes are changing again, they will be difficult to say the least. I'll see if I can get a pic or 2 uploaded soon. Quote Link to comment Share on other sites More sharing options...
REKIII Posted April 3, 2014 Author Report Share Posted April 3, 2014 Here is a pic of the manifold Mock-up DrLeadFoot 1 Quote Link to comment Share on other sites More sharing options...
I love my E39 Posted April 4, 2014 Report Share Posted April 4, 2014 This thread makes me just want to go trade in my e39 for a e60 m5 making my car feel so slow. 2 more years...sigh Sent from my LG-LS970 using Tapatalk Quote Link to comment Share on other sites More sharing options...
REKIII Posted April 4, 2014 Author Report Share Posted April 4, 2014 When you make the trade what will you do with your user name? KaiserRolls 1 Quote Link to comment Share on other sites More sharing options...
I love my E39 Posted April 5, 2014 Report Share Posted April 5, 2014 Good point!!! Now im stuck with an e39 thanks rekIII Sent from my LG-LS970 using Tapatalk REKIII 1 Quote Link to comment Share on other sites More sharing options...
alexw Posted April 5, 2014 Report Share Posted April 5, 2014 Awesome.Earl, you're slacking on THE man comments. Quote Link to comment Share on other sites More sharing options...
andyhundley Posted April 8, 2014 Report Share Posted April 8, 2014 Awesome.Earl, you're slacking on THE man comments.Earl has been slacking on everything lately! KaiserRolls 1 Quote Link to comment Share on other sites More sharing options...
REKIII Posted April 15, 2014 Author Report Share Posted April 15, 2014 Some progress: DrLeadFoot, Dominic540 and Rowleym 3 Quote Link to comment Share on other sites More sharing options...
Rowleym Posted April 15, 2014 Report Share Posted April 15, 2014 gnarly gnarly gnarly! Quote Link to comment Share on other sites More sharing options...
Earl Posted April 15, 2014 Report Share Posted April 15, 2014 Robert, you are THE man=) Quote Link to comment Share on other sites More sharing options...
DrLeadFoot Posted April 16, 2014 Report Share Posted April 16, 2014 This gets me going! Quote Link to comment Share on other sites More sharing options...
B C Posted April 16, 2014 Report Share Posted April 16, 2014 glad to see another update. Building a manifold would be a heck of a puzzle, but very rewarding if my small task of designing a downpipe and exhaust system is any indication. Rowleym 1 Quote Link to comment Share on other sites More sharing options...
REKIII Posted April 28, 2014 Author Report Share Posted April 28, 2014 Sad realization Friday. The car will not be ready for my June 7th drive to Timmayfest. Unless I find something else the wife and I will be tending the BMW/Merc meet in an SRT8 Jeep. The humility. Rowleym 1 Quote Link to comment Share on other sites More sharing options...
REKIII Posted May 16, 2014 Author Report Share Posted May 16, 2014 Forgot to update. I visited the car last weekend. Didn't do anything but take some measurements for the air tank mounting and the battery placement, but it still makes me grin every time I see it. Quote Link to comment Share on other sites More sharing options...
Andrew Posted May 17, 2014 Report Share Posted May 17, 2014 This car is ridiculous. Not sure how I missed this thread, but I just read the whole thing. Can't wait to see it finished! Quote Link to comment Share on other sites More sharing options...
REKIII Posted June 20, 2014 Author Report Share Posted June 20, 2014 Not too much to update lately, but I'm a few steps closer to inadvertantly developing a plug and play ECU for the E39/E46 chassis. Been working with electronic suppliers ans board builders to come up with something that is pretty cool. I'll have pics when I have something together. DrLeadFoot 1 Quote Link to comment Share on other sites More sharing options...
B C Posted June 20, 2014 Report Share Posted June 20, 2014 For an S62 swap im assuming? Very cool! Quote Link to comment Share on other sites More sharing options...
REKIII Posted June 20, 2014 Author Report Share Posted June 20, 2014 No reason to swap an S62 into my car. I already have one. The e46 uses the same basic ECU as the e39, that is why the plug and play could be an option there. Quote Link to comment Share on other sites More sharing options...
B C Posted June 20, 2014 Report Share Posted June 20, 2014 I see why you thought i meant s62 swapping your car. Hahah i know what you mean now. That would be a big hit Quote Link to comment Share on other sites More sharing options...
Rowleym Posted June 22, 2014 Report Share Posted June 22, 2014 No reason to swap an S62 into my car. I already have one. The e46 uses the same basic ECU as the e39, that is why the plug and play could be an option there. It would be rather handy if you came up with a solution within the next month I have an entire turbo kit ready to be installed on my brothers e46. We were going to take a shot at stock DME tuning. Quote Link to comment Share on other sites More sharing options...
REKIII Posted June 23, 2014 Author Report Share Posted June 23, 2014 Stock DME Tuning wont work.....well it can, but not without a piggy back of some sort. The DME has no input for boost pressure. With a Supercharger you can use AlphaN tuning because everything is linear and mathematically sound. Turbos are not. Quote Link to comment Share on other sites More sharing options...
Rowleym Posted June 23, 2014 Report Share Posted June 23, 2014 Stock DME Tuning wont work.....well it can, but not without a piggy back of some sort. The DME has no input for boost pressure. With a Supercharger you can use AlphaN tuning because everything is linear and mathematically sound. Turbos are not. It simplys measures flow? MAF no? Many people tune this stock ecu so I know I'm not too wrong. We will be using a datalogger of some sort, and log the stock maf voltage, and also the ford MAF we will be using, and then I will swap out the stock one, and be able to monitor the increased amount of airflow. Quote Link to comment Share on other sites More sharing options...
REKIII Posted June 23, 2014 Author Report Share Posted June 23, 2014 Yes, it measures mass airflow. This is great as long as the pressure doesn't change. Due to the constant weight of the earths atmosphere, the computer knows the pressure will never vary from 14.5 PSI. So it measures Airflow, based on that pressure. If the pressure increases, due to a turbo or supercharger, the Airflow can remain the same but the DME doesn't know that an increased air amount has entered the engine. ALL DME tuned supercharger kits on BMW's that used to be NA convert to alphaN. This eliminates the MAF's and uses math to figure out airflow based on RPM. Because a supercharger produces the same PSI at a particular RPM all the time, the equations can be figured out and this programmed in. Turbo's are a different beast. They produce boost based on load. If you are cruising at 4K RPM the turbos will produce 0 PSI but if you are accelerating, when the car hits 4K, the turbos could be producing any amount of PSI, based on many factors. This is why Mas Air Pressure (MAP) must be measured in a turbo car. Since these cars have no factory MAP sensor, one must be added and controlled, and have bearing on the fuel tables. Quote Link to comment Share on other sites More sharing options...
B C Posted June 23, 2014 Report Share Posted June 23, 2014 I know of a corvette that has been switched to run speed density via an obd2 tuning software. Not sure how but it do. Quote Link to comment Share on other sites More sharing options...
Rowleym Posted June 23, 2014 Report Share Posted June 23, 2014 Yes, it measures mass airflow. This is great as long as the pressure doesn't change. Due to the constant weight of the earths atmosphere, the computer knows the pressure will never vary from 14.5 PSI. So it measures Airflow, based on that pressure. If the pressure increases, due to a turbo or supercharger, the Airflow can remain the same but the DME doesn't know that an increased air amount has entered the engine. ALL DME tuned supercharger kits on BMW's that used to be NA convert to alphaN. This eliminates the MAF's and uses math to figure out airflow based on RPM. Because a supercharger produces the same PSI at a particular RPM all the time, the equations can be figured out and this programmed in. Turbo's are a different beast. They produce boost based on load. If you are cruising at 4K RPM the turbos will produce 0 PSI but if you are accelerating, when the car hits 4K, the turbos could be producing any amount of PSI, based on many factors. This is why Mas Air Pressure (MAP) must be measured in a turbo car. Since these cars have no factory MAP sensor, one must be added and controlled, and have bearing on the fuel tables. So what you are saying here, is the countless stock DME tuned turbo e36's and e46's are unsafe even though people have driven tens of thousands of miles and also daily drive those cars? I honestly can't believe that it doesn't work when so many people prove it. Hell they made over 1000whp on the stock e36 DME. I know there are other factory turbo cars with MAF based systems as well. What you said does make some sense to me though. Pv=nrt No? Haha. Quote Link to comment Share on other sites More sharing options...
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