datman Posted July 23, 2007 Share Posted July 23, 2007 Well my car finally started after being in bits for months, I had problems with the EDIS at first, I had the 4 pin plug wired upside down! not good when all the plugs fire at once! After sorting the edis problem and using a bit of ptfe tape to stop the fuel rail leaks I tried it again. It fired straight up...it's a lot quieter than my old L28 NA. Oil pressure at 50psi just above idle. Timing was a little out but the trigger wizard soon sorted that out. One problem I do have is a hissing noise from around #1 injector, it only happens when I close the throttle, I guess it must be a bad seal where the injector meets the manifold. A few questions for you guys: What sort of temperature do you have your coolant fan come on? Is it normal for fuel pressure to drop from 40psi down to 20psi as soon as you switch the ignition off? I thought it would lower slowly. Specs fo the engine as follows: NA F54/90 .5mm oversize flat top pistons. 2mm steel head gasket New bearings all over ARP bolts crank/rod and head Nismo oil pump Holset HE351cw Walboro 255 fuel pump Delphi 650cc low imp injectors Sard fuel regulator Collins dump valve MSII fuel and spark EDIS Megaview 60mm throttle body. 76mm IC pipework 600x300x76 Intercooler 76mm stainless steel exhaust with 1 straight thru rear oval silencer Innovative LM1+LC1 wideband (not hooked up yet) Will be happy with 300HP Thanks for looking Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted July 23, 2007 Share Posted July 23, 2007 My coolant fan comes on at about 195 but I use a separate fan controller. Will be happy with 300HP? That's impossible since you will most likely exceed that number by far. Congrats, wait 'til you get it tuned and then post a picture of the giant grin on your face! Quote Link to comment Share on other sites More sharing options...
datman Posted July 23, 2007 Author Share Posted July 23, 2007 Thnaks Dave, I tried loading your msq but my MS gave me a few warnings and for some strange reason shut down !! I did copy your ve and ignition tables though, thanks for that. Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted July 23, 2007 Share Posted July 23, 2007 Errors while opening an .msq are usually due to Megatune setup in the Configurator for a different firmware. I am using v2.6xxx Quote Link to comment Share on other sites More sharing options...
datman Posted July 29, 2007 Author Share Posted July 29, 2007 Still not driven it yet buts its running better now. Quote Link to comment Share on other sites More sharing options...
WizardBlack Posted August 3, 2007 Share Posted August 3, 2007 Most cars I have seen end up with a hysteresis of about 10 degrees F which hovers around the thermostat temp. Much lower than that is pointless (may as well rig the fan to stay on all the time) and higher than that isn't really wise. As far as fuel pressure, it really varies from setup to setup. I have seen aftermarket pumps that allow the pressure to back up through it as soon as it shuts off (ie., no pressure when off; priming is pointless) and stock cars that hang on to part of the pressure overnight. I wouldn't worry about it. EDIT: BTW, I watched the video. Looking good! Quote Link to comment Share on other sites More sharing options...
datman Posted August 6, 2007 Author Share Posted August 6, 2007 Ok I have the car driving now,it pulls hard but the mixture is allover the place. I tried using megalogviewer but the files are always huge even if I just drive for 5 mins...is there something i'm missing? Also my temperature seems to go upwith the revs,, like to 144 then as I lower the revs it drops back down to 90. I thought it was noise from the injectors so I ran a screened cable but its still the same. Any ideas? maybe the edis needs a supressor. Here my file from a 5 min drive,maybe someone here can explain why it is so long. Thanks Quote Link to comment Share on other sites More sharing options...
naviathan Posted August 6, 2007 Share Posted August 6, 2007 Forgot the file? Quote Link to comment Share on other sites More sharing options...
datman Posted August 6, 2007 Author Share Posted August 6, 2007 ooops MONDAY1.zip Quote Link to comment Share on other sites More sharing options...
naviathan Posted August 6, 2007 Share Posted August 6, 2007 You need a voltage regulator. You have voltage spikes into the 21+V range. The other thing I see is your dwell. You have it too low and you're probably getting really weak sparks. The highest dwell I see in the log is 1.1 and most people set a max of 3.1, bump that up and see what happens. Also you never get completely warmed up from what I can see the highest temp in the log is 144*. That's all I can see right now. Try the dwell change and see what that does for you. Quote Link to comment Share on other sites More sharing options...
datman Posted August 6, 2007 Author Share Posted August 6, 2007 Ok I will check the voltage levels and dwell settings.....note my temps are in C not F ! 144 is 44 degrees over boiling!!! this is the problem....Ive checked the water temperature with a thermometer and its around 85, its the high revs that causes it to go to 144, when I drop to idle it corrects itself. I will try with the alternator disconnected Quote Link to comment Share on other sites More sharing options...
naviathan Posted August 6, 2007 Share Posted August 6, 2007 Wow..Ok nevermind on the temps then. Definitely work the dwell issue, however the voltage thing, I just checked my logs and it seems I'm getting similar spikes so it might be normal. Couldn't hurt to check anyway. Quote Link to comment Share on other sites More sharing options...
datman Posted August 6, 2007 Author Share Posted August 6, 2007 What about the fact I'm using EDIS? doesn't the edis module handle dwell? if so then should i set dwell to zero? Quote Link to comment Share on other sites More sharing options...
naviathan Posted August 6, 2007 Share Posted August 6, 2007 Hmmm...Not sure there. Have you checked the threads from some others that are also running EDIS? I've seen at least two, but I really don't know about the dwell thing. Quote Link to comment Share on other sites More sharing options...
naviathan Posted August 6, 2007 Share Posted August 6, 2007 talk to zbigtim, he seems to have his EDIS MS-II running pretty good. Quote Link to comment Share on other sites More sharing options...
datman Posted August 8, 2007 Author Share Posted August 8, 2007 Ok I disconnected the alternator and the spikes in the temperature dial stopped. Does anyone know the best way to fix this? I have the old style alternator with the voltage regulator fixed on the inner fender. Quote Link to comment Share on other sites More sharing options...
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