mobythevan Posted May 30, 2007 Share Posted May 30, 2007 After I noticed that I installed my opto isolator backwards everyhting fired right up. I am running with no TPS, it is connected but just sets at no throttle position. I turned on MAP based accel. Notice Megasquirt is just tossed on top of the engine. How does it run, I can't even describe it (open headers, supercharger, EFI, instant throttle response). I was running around like a little kid, my wife thinks I've lost it I am trying to borrow a video camera for tonight and I will post some video of it running. EDIT: low quality video link Quote Link to comment Share on other sites More sharing options...
naviathan Posted May 30, 2007 Share Posted May 30, 2007 Yeah, my wife thinks I've gone insane when I come up with something new for the car. They just don't understand. Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted May 30, 2007 Share Posted May 30, 2007 Moby is the Megasquirt KING!! Quote Link to comment Share on other sites More sharing options...
Thumper Posted May 30, 2007 Share Posted May 30, 2007 So is that going into your Celica or Talon? Vids please. Quote Link to comment Share on other sites More sharing options...
naviathan Posted May 30, 2007 Share Posted May 30, 2007 Curious, is the TPS a must have for megasquirt to run properly? I would have though if it was making proper corrections based on the MAP readings and the O2 readings then the TPS shouldn't be a big deal. Unless it has to have that signal for immediate accel enrichment... Quote Link to comment Share on other sites More sharing options...
Thumper Posted May 30, 2007 Share Posted May 30, 2007 Curious, is the TPS a must have for megasquirt to run properly? I would have though if it was making proper corrections based on the MAP readings and the O2 readings then the TPS shouldn't be a big deal. Unless it has to have that signal for immediate accel enrichment... To idle and drive it does not need the tps but I personally do not like the map accel never got it to work as smoothly as the tps accel. Moby you ever get the map accel to work correctly? Quote Link to comment Share on other sites More sharing options...
mobythevan Posted May 30, 2007 Author Share Posted May 30, 2007 Moby you ever get the map accel to work correctly? On the test stand it works awesome, but we will see when it actually goes in the car. I am sure that running with the supercharger is going to alter the characteristics of MAP based AE on this engine. VIDEO?? It looks like my friend will be over Saturday morning to shoot some video of it running. Oh, and you guys probably noticed that the engine is not running EDIS yet. Yeah, I thought I better take two steps and get fuel only running first. This turned out to be a very good call since I couldn't get a tach signal at first and found the backwards opto. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted May 30, 2007 Author Share Posted May 30, 2007 Moby is the Megasquirt KING!! King of redkneck engine test stands maybe I have a box fan setting on a bucket of oil to cool the radiator and a bungee cord holding the alternator to tension the belt No breather so when the engine is cranking before it gets a good vacuum fuel is popping out the top of the throttle body, yeah my wife was a little scared to stand next to it. I had her crank it over with the pushbutton while I operated the throttle. She had to stay while I ran it so she could cut the ignition toggle switch if anything went wrong. After I shut it down she walked out of the garage with her hands over her ears. Quote Link to comment Share on other sites More sharing options...
Slow_Old_Car Posted May 30, 2007 Share Posted May 30, 2007 tbi? Quote Link to comment Share on other sites More sharing options...
mobythevan Posted May 30, 2007 Author Share Posted May 30, 2007 tbi? Yeah, it the old B&M superjection setup. The throttle body is bored out to about 1000cfm. It has port type injectors (150lb/hr) Basically autonomics sells the throttle bodies and fuel rails now. My intake manifold supports port injection, but I was scared to run the supercharger dry. Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted May 31, 2007 Share Posted May 31, 2007 When I finished installing the MS-II and my wife saw the Z move again after three months of me tangled with wires, she said she was proud of me! I think she was just happy that I could now resume a normal fatherhood. Unfortunately, I haven't told her about tuning yet OK Moby that motor looks like a beast. I am running a blend of MAP and TPS for accel enrichment. It seems pretty good. In fact, the blend seems better than just TPS. I did not spend a ton of time tweaking the TPS Accel parameters though. I just added some estimated MAP values, blended, and throttle response got better. Quote Link to comment Share on other sites More sharing options...
big-phil Posted May 31, 2007 Share Posted May 31, 2007 thats cool Quote Link to comment Share on other sites More sharing options...
v8dats Posted June 1, 2007 Share Posted June 1, 2007 truly a mad man...... i love it! Quote Link to comment Share on other sites More sharing options...
280tyler Posted June 1, 2007 Share Posted June 1, 2007 that is sweet what car is it going in Quote Link to comment Share on other sites More sharing options...
BillZ260 Posted June 1, 2007 Share Posted June 1, 2007 Very cool! My wife did the same thing on my first start up. She humored me untill it was too much for her and she just slipped back into the house w/ out saying anything, I didn't notice till way later. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted June 1, 2007 Author Share Posted June 1, 2007 that is sweet what car is it going in its going in my 34 pontiac. I am trying to get the chassis and drivetrain finished. Got to install the four link rear suspension and ford 9 inch rear end, rebuild the manual transmission, fab the engine/tranny mounts and get a driveshaft made. Sounds like a lot, but I have all the parts and my plan is finally worked out so it shouldn't take but a few weeks. The 9 inch rear has disc brakes and I have mustang-II front end, so I will end up with disc brakes all the way around. Quote Link to comment Share on other sites More sharing options...
boardkid280z Posted June 2, 2007 Share Posted June 2, 2007 Video!>!?!?!11!! Quote Link to comment Share on other sites More sharing options...
mobythevan Posted June 6, 2007 Author Share Posted June 6, 2007 OK, I got a video. What is the best way to post it up. youtube? It is only 5.5Mb should I just put it in the download section here on hybridz? You guys tell me, I am new to video stuff, and BTW you have to make the video pretty small or it looks grainy, but hey its a video so its better than nothing Quote Link to comment Share on other sites More sharing options...
christoc Posted June 6, 2007 Share Posted June 6, 2007 I upload all my videos to Youtube, best bandwidth and hosting for the price! Quote Link to comment Share on other sites More sharing options...
boardkid280z Posted June 12, 2007 Share Posted June 12, 2007 price = free? Quote Link to comment Share on other sites More sharing options...
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