180sxv Posted August 26, 2014 Report Share Posted August 26, 2014 I am currently researching information to install an i88 on a 1991 Mitsubishi 3000GT. Does anyone have input on setting up the trigger settings with the factory CAS since it's not in the list of triggers? Also has anyone replaced the factory trigger wheel with a Yoshifab 24 tooth trigger wheel with benificial results? Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted August 26, 2014 Report Share Posted August 26, 2014 Hi, do you know the standard trigger patterns at all. Tooth counts, type of sensors used etc. ViPEC ECU's are very flexible with setting up triggers, sometimes minor modifications maybe required. I appolagise for not being familiar with the engine to this degree, however some basic info should get us underway. Do you have access to an oscilloscope to capture the standard trigger patterns. Is your engine a V6 twin turboed. What is the engine code, EG: 4G63 for EVO Regards Dave. Quote Link to comment Share on other sites More sharing options...
180sxv Posted August 26, 2014 Author Report Share Posted August 26, 2014 The car is a 1991 3000GT VR4 twin turbo. Currently it is a slightly modified V6 DOHC 6G72. Has fuel upgrades (pump, injectors, plumbing), turbo upgrades, valvetrain upgrades (stock cams). It still retains the complete factory ECU setup with MAF-T (MAF to MAP fuel conversion & ignition adjustments) piggyback to run the current setup. We are planning to go full standalone to modernize the electronics on the engine which will help with better tuning and driveability. The engine uses a cam angle sensor on the rear of the left intake cam. Below is a link that explains how the CAS trigger works. I also have the Factory service manual for any other information needed. http://www.stealth316.com/2-ignitionsystem.htm#j2b Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted August 26, 2014 Report Share Posted August 26, 2014 Hi 180sxv, I am sure we should be able to come up with a solution for this engine. Sorry but I must take medication now, this will render me useless, so I will assist in this tomorrow. Regards Dave. Quote Link to comment Share on other sites More sharing options...
180sxv Posted August 26, 2014 Author Report Share Posted August 26, 2014 Dave, No problem and thanks for willing to help me figure out this setup. Also this is the aftermarket trigger wheel I was looking at which I believe will simplify the signals and allow the Vipec to use a multi tooth trigger setup for timing. It's made primarily for the 4G63 CAS using an aftermarket ECU. http://yoshifab.com/store/index.php?_a= ... oductId=46 Quote Link to comment Share on other sites More sharing options...
Dave Kriedeman Posted August 26, 2014 Report Share Posted August 26, 2014 Hi 180sxv, See if any of these settings help. Regards Dave. (Thanks HIC). Quote Link to comment Share on other sites More sharing options...
Simon Posted August 27, 2014 Report Share Posted August 27, 2014 If you retain the factory CAS you can use the Mitsubishi GTO trigger option in the i88. No need to modify the trigger. Quote Link to comment Share on other sites More sharing options...
180sxv Posted August 31, 2014 Author Report Share Posted August 31, 2014 I got the car running using the Mitsubishi GTO trigger option. Thanks for the help. Ty (180sxv) Quote Link to comment Share on other sites More sharing options...
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