Johann Posted January 18, 2015 Report Share Posted January 18, 2015 Im not comparing anything. Im saing that Hussein has very fast car and im very glad to see it getting more faster everytime he tunes it more. No. What you were saying is that if Hussein would have used a standalone management system he would have had 700 HP about a year ago. But then Hussein explained that number crunching the M4.4 is part of his game. Added to that with the incomplete information gathered from reverse engineering the M4.4 sometimes revisions need to be made. Keeping the OEM motormanagement in the car has some advantages over a standalone management. Quote Link to comment Share on other sites More sharing options...
VulvaS40T4 Posted January 18, 2015 Report Share Posted January 18, 2015 True oem ecu has pros and cons. Same thing when using standalone ecu. These x40 volvos had from factory siemens ems 2000 which was pain in the ALL GLORY TO THE HYPNOTOAD to tune and max power with that i had was 350hp and it was not easy. After that i switched to standalone and im happy with that. It needs much more tuning in ares which stock ems where perfect and much less tuning on full throttle runs. Quote Link to comment Share on other sites More sharing options...
Piet Posted January 18, 2015 Report Share Posted January 18, 2015 (edited) No. What you were saying is that if Hussein would have used a standalone management system he would have had 700 HP about a year ago. But then Hussein explained that number crunching the M4.4 is part of his game. Added to that with the incomplete information gathered from reverse engineering the M4.4 sometimes revisions need to be made. Keeping the OEM motormanagement in the car has some advantages over a standalone management. That information is getting less and less incomplete though... Edited January 18, 2015 by Piet Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 18, 2015 Author Report Share Posted January 18, 2015 Your car has much more weight and 4wd so its very fast (my car weight without driver 3000lbs / 1360kg)!!! I really hope you can get your car tuned and then have good dyno session. Yep. I think that of us all M4.4 tuners, he's pushing the most effort into it, and I respect him for that. But sometimes you just can't make an elk outrun a rabbit Mine is 4110lbs weighed at the track I think after a certain speed the weight is less of a factor, but maybe that is in rolling pulls. In any event it is not my expectation that I will reach your power levels on my build, I'm just looking to see how far I can go with M4.4 at this point. I will go back to the dyno to verify numbers once I'm confident I have a safe baseline. I honestly didn't think I would get over 500AWHP, and that wouldn't have happened without the work of all those exploring the M4.4 software (many thanks to all !!!) But then Hussein explained that number crunching the M4.4 is part of his game. Added to that with the incomplete information gathered from reverse engineering the M4.4 sometimes revisions need to be made. Keeping the OEM motormanagement in the car has some advantages over a standalone management. Indeed. The main advantage is for NY State inspections - they use OBDII to communicate with the EMS to provide a clean bill of health. The assumption being that if it has a pulse, and sets no codes, that the system with all its emissions devices is operating as designed Standalone wouldn't work without issues. Quote Link to comment Share on other sites More sharing options...
BlackT5 Posted January 18, 2015 Report Share Posted January 18, 2015 I have Nira running the engine in my S70 but the stock ecu is still also somewhat connected. Both receive the rpm signal and ECT. Stock ecu feeds the cluster for tach and coolant temp, it also controls the rad fan iirc. Last time I plugged it in to an obd2 reader, it showed no codes Stand alone certainly has it's challenges, but much easier to tune without the maf. Quote Link to comment Share on other sites More sharing options...
venderbroeck Posted January 18, 2015 Report Share Posted January 18, 2015 Hmm, maybe easier at first. But the way I see it, tuning with a suitable maf, and the right table isn't all that hard. I think the maf system is generally poorly understood / implemented. I get the impression people see it as a bit of a black box while it can make your tune better if you know how to use it well. I also think the problems lots of people are having originate from having an undersized maf which then proceeds to max out. It takes a bit of work yes, but refinement, consistency, and increased drivability are big advantages of the maf system in my view. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 18, 2015 Author Report Share Posted January 18, 2015 Not sure if this is of any interest, but I tested my injectors this past weekend. Tried to figure out the dead time to set in my MegaSquirt settings. The 160lb High Impedance Bosch injectors I have seem to be very linear all the way down to a PW of 0.8ms. If you ever think of upgrading these should still provide a good idle once tuned correctly. The video is for PW of 10 @ 2400RPM for 900 pulses. Just bought 5 of these (Bosch original 160lb 0280158827) off an eBay vendor - used for dyno testing according to the listing - they had 90 last week, and only 11 left today, so I figured I better get them & put them aside. $30 less per unit than any other source I could find. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 18, 2015 Author Report Share Posted January 18, 2015 I have Nira running the engine in my S70 but the stock ecu is still also somewhat connected. Both receive the rpm signal and ECT. Stock ecu feeds the cluster for tach and coolant temp, it also controls the rad fan iirc. That was my plan when I rewired my main harness for the VEMS install. I added a piggy back A/B socket so I could keep a lobotomized ECU for basic functions & OBDII testing. I built the whole mess into a M44 casing Since I've been able to work with M4.4, I have no use for all that now. I guess I should think about selling it, along with TurboTuner/COP ECU's. SOLD Quote Link to comment Share on other sites More sharing options...
fischmama Posted January 18, 2015 Report Share Posted January 18, 2015 Just bought 5 of these (Bosch original 160b 0280158827) off an eBay vendor - used for dyno testing according to the listing - they had 90 last week, and only 11 left today, so I figured I better get them & put them aside. $30 less per unit than any other source I could find. Nice. Like I mentioned via text. I made a typo and its actually closer to 1ms. Still very good for such a big injector. I ran them briefly in the S70 on normal pump gas (w/ M4.4) you will have to set the minimum injection time to 0 or near 0 to be able to get a normal Idle afr. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 19, 2015 Author Report Share Posted January 19, 2015 Weather cleared enough for me to do a short pull or two to see how the VE revisions look. Much better, I think. Couldn't wind it out, but I did manage 60-100 pull. Annoyingly, I didn't go WOT until 1 sec in, and lifted off right at 100. In any event, I'm finally seeing an improvement over my previous 4.34 time with TTusb , now that load isn't maxxed out & timing values are higher as a result . I'll work on getting a cleaner pull, going WOT before 60 & ending after 100. Main thing is that AFR's are looking much better EDIT: Found a couple of recurring locations that are borderline -so raised them to get AFR below 12.5 IGNORE boost - it's not being logged - that's the EVAP tank pressure monitor circuit 59.03 MPH @ (time stamp) 103.486 100.04 mph @ (time stamp) 107.837 Quote Link to comment Share on other sites More sharing options...
fyrken Posted January 19, 2015 Report Share Posted January 19, 2015 Hussein (I think this is your name), Be careful with those injectors. There have been several issues with the 1700cc Bosch EV14 unit. Search and you will find! They drop in flow when subjected to MTBE and also due to temperature. We used them on a E85 build and it still didn't work out. In the end we got 480whp with 100% duty on a T4 running 4,5bar relative fuel pressure. Injector dynamics stop selling them when they found out. Great injecter until problem. Very nice idle and also spray pattern. Quote Link to comment Share on other sites More sharing options...
Tightmopedman9 Posted January 20, 2015 Report Share Posted January 20, 2015 Hussein (I think this is your name), Be careful with those injectors. There have been several issues with the 1700cc Bosch EV14 unit. Search and you will find! They drop in flow when subjected to MTBE and also due to temperature. We used them on a E85 build and it still didn't work out. In the end we got 480whp with 100% duty on a T4 running 4,5bar relative fuel pressure. Injector dynamics stop selling them when they found out. Great injecter until problem. Very nice idle and also spray pattern. In the US the vast majority of gasoline suppliers switched to ethanol to oxygenate fuels, so I'm not sure why a lack of MTBE compatibility should be a problem. Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 20, 2015 Author Report Share Posted January 20, 2015 Hussein (I think this is your name), Be careful with those injectors. There have been several issues with the 1700cc Bosch EV14 unit. Search and you will find! They drop in flow when subjected to MTBE and also due to temperature. We used them on a E85 build and it still didn't work out. In the end we got 480whp with 100% duty on a T4 running 4,5bar relative fuel pressure. Injector dynamics stop selling them when they found out. Great injecter until problem. Very nice idle and also spray pattern. Found two threads where they discuss this. Nothing new, though. Curious that several known vendors carry them listed for gas/E85 (Treadstone, FiveOMotorsport, and others) Quote Link to comment Share on other sites More sharing options...
lookforjoe Posted January 21, 2015 Author Report Share Posted January 21, 2015 Pull from today. Forgot to keep it in 3rd for the 60-100, so I just went to 120, with 3-4 & 4-5 shifts it comes out as 6.88sec. Definitely getting there. A little lean in spots, so I made some more adjusts after. No Knock, no timing pull in this run. Did another 4th into 5th pull after, and that had a little knock in the 6-6,6k range, at one row higher load. Pretty sure 1st one was level road, 2nd was uphill. Still trying to resolve by adding fuel, then I'll pull timing if need be. Comparison: Quote Link to comment Share on other sites More sharing options...
854TGA+ Posted January 21, 2015 Report Share Posted January 21, 2015 You Mr H., are so lucky to have a personal closed air strip to tune on. 4 Quote Link to comment Share on other sites More sharing options...
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