frank_ster Posted June 14, 2015 Author Share Posted June 14, 2015 I have the megasquirt running the engine , i have added sensors so that the subaru ecm is geting most of the signals so that most everything works normally. The only thing that doesnt work in my car is the cruise but i think i have that figured out. Baically i have gm v6 with the subaru throttlebody , subaru coolant, map, sensors. The megasqirt makes a simulated crank and cam signals to fool the subie ecu. Megasquirt is in my opinion mich easier to tune , i make changes while driving and data log with android and or pc via Bluetooth or serial/ usb. Whats hard is making the car runnperfect in daily driving situations. There are sooo many variables. From cold enrichments to acceleration enrichments. Its usually easier to take the subaru tune and just make a few changes. Compared to starting from scratch. I have spent hundreds of hours playing with the tune to optimize fuel economy, cold start, warmup issues to prevent stalling when puting into gear . Optomizing fuel injection timming etc . Its a lot of funnto play with and you can do more but you can also break stuff if you dont know what you are doing. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
whitrzac Posted June 14, 2015 Share Posted June 14, 2015 What is the subaru ECU needed for? Link to comment Share on other sites More sharing options...
frank_ster Posted June 15, 2015 Author Share Posted June 15, 2015 Well depending on the level of mods you are intending. Im trying to keep the car completely stock apperence inside and out Stock computer is needed to keep abs happy drive by wire , gauge cluster a/c However megasquirt can potentially talk to the dashbord / abs take care of a/c and anything else. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
west_minist Posted August 20, 2015 Share Posted August 20, 2015 Frank_ster, I am awaiting feedback from Syvecs on the matter, but from your implementation, you have 9 outputs and 12 inputs? OUTPUT (9) P/L Solenoid I/C Solenoid H&LR/C Solenoid LC/B Solenoid Fr/B Solenoid L/U Solenoid D/C Solenoid Range Lock Solenoid AWD Solenoid INPUT (12) I/C Oil Pressure Switch LC/B Oil Pressure Switch D/C Oil Pressure switch H&LR/C Oil Pressure Switch Fr/B Oil Pressure Switch ATF Temperature Sensor 1 ATF Temperature Sensor 2 Lateral G Sensor Rear Vehicle Speed Sensor Front Vehicle Speed Sensor Turbine Speed Sensor 1 Turbine Speed Sensor 2 Link to comment Share on other sites More sharing options...
frank_ster Posted August 21, 2015 Author Share Posted August 21, 2015 Range lock is just for the shifter so you cant put it in reverse when going more than 5 mph. For inputs you dont need most of those. 1 temp sensor 1 speed sensor Shift up Shift down Shifter in drive. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
fahr_side Posted August 21, 2015 Share Posted August 21, 2015 west_minst, take a look at the Syvecs S6+. They have a Subaru CANbus interface developed for the GRB, which would work in a Legacy with some tweaking of the addresses. Full control of dash, HVAC etc. They also have a complete kit (on the larger S8 though) for the R35 which controls it's transmission, so that should also be no problem. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
west_minist Posted August 21, 2015 Share Posted August 21, 2015 Kkk. I will try to integrate all, but I saw a 2005 legacy doc which did more explaining of the operations of the solenoids etc. Link to comment Share on other sites More sharing options...
frank_ster Posted August 21, 2015 Author Share Posted August 21, 2015 Megasquirt also can talk to the dash via can bus. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
west_minist Posted August 22, 2015 Share Posted August 22, 2015 I know. Problem you have to do the CAN research and since the 5EAT Is not really desogn for real sport, why no just replace it. But I am hoping to do the research, but I dont have a 5EAT to hand, unless I travel. Frank_ster, do have done the analysis? Link to comment Share on other sites More sharing options...
frank_ster Posted August 22, 2015 Author Share Posted August 22, 2015 Nope. But the 5 eat can take power it just needs a 250$ controller , As the trans is built stronger to be smooth. As smooth is more abuse than quick shifting . So just make it shif fast and it will be fine Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
fahr_side Posted August 25, 2015 Share Posted August 25, 2015 As the trans is built stronger to be smooth. As smooth is more abuse than quick shifting . So just make it shif fast and it will be fine That's well-put. A lot of people miss this connection. Sent from some electronic device. Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs. Link to comment Share on other sites More sharing options...
whitrzac Posted August 28, 2015 Share Posted August 28, 2015 I'm seriously considering this... I have experience with megasquirt/tunerstudio, but the LGT is my 'road trip' car, not my racecar. How difficuly would it be to make a megashift work with the OEM ecu? Link to comment Share on other sites More sharing options...
frank_ster Posted August 28, 2015 Author Share Posted August 28, 2015 seems pretty easy as you make the ecm think its manual trans and then the megashift can do what ever it wants. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
west_minist Posted September 6, 2015 Share Posted September 6, 2015 Hey Frank_ster: I am on vacation this week. Do you think you have any time we can link either on bbm or whatsapp to discuss the 5EAT operations? I printed all material to slowly go through them. We can use stuff like teamviewer etc for meeting like stuff. If you can, email me letting me know the possibilities - west_minist@extremeracingtuning.com Thank you Link to comment Share on other sites More sharing options...
frank_ster Posted September 7, 2015 Author Share Posted September 7, 2015 Sure thing Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
west_minist Posted September 20, 2015 Share Posted September 20, 2015 What is the sequence in shifting? Link to comment Share on other sites More sharing options...
frank_ster Posted September 21, 2015 Author Share Posted September 21, 2015 uh is it not posted on the first page ? Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
west_minist Posted September 22, 2015 Share Posted September 22, 2015 Thats helpful showing the pattern. What I do refer too, since I lost my 5EAT logs, I believe the clutch is release before a shift and solenoids pressure switches tells you when those gears are changed before you re-engage the clutch? Link to comment Share on other sites More sharing options...
frank_ster Posted September 22, 2015 Author Share Posted September 22, 2015 its not like a manual transmission, you dont have to open a clutch , make the gear change then re-engage the clutch. all that really happens is one solenoid turns off and the next turns on and you are in the next gear. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
frank_ster Posted September 22, 2015 Author Share Posted September 22, 2015 http://legacygt.com/forums/attachment.php?attachmentid=135005&d=1354140563 when you are in 1st gear solenoid 2 and 4 are on . to shift into second gear you need to simply turn on solenoid 3 while turning solenoid 2 off. to shift into 3rd you will turn solenoid 2 back on so that 2,3,and 4 are on. to shift into 4th you have solenoid 1,2,and 3 on. to shift into 5th 1,2 and 4 so that would get you through all the gears... in addition solenoid 5 should be engaged in 1st and 2nd gears, so that you have engine braking other wise the engine will fall to idle in those gears when you let off the throttle. the stock tcm only engages sol 5 when in sport mode http://legacygt.com/forums/attachment.php?attachmentid=135005&d=1354140563 Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
west_minist Posted October 3, 2015 Share Posted October 3, 2015 I keep thinking I have to disengage a clutch mechanism. Link to comment Share on other sites More sharing options...
frank_ster Posted October 4, 2015 Author Share Posted October 4, 2015 Nope. You could litterally put toggel switches and flick the gears on and off in the correct order and it will work. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
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