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Gen3 fcd? Or alternative

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Gen3 fcd? Or alternative Register Help Home Forum New Posts FAQ Calendar Community Groups Reported Items Top Posters Forum Actions Mark Forums Read Quick Links Today's Posts Contribution Actions Contribute Blogs What's New? Contribute Advanced Search Forum Toyota MR2 Generations MK 2 MR2 - SW20 MK2 Stand-Alone EMS and Nitrous Discussion Gen3 fcd? Or alternative
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Results 1 to 3 of 3 Thread: Gen3 fcd? Or alternative Thread Tools Show Printable Version Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 11-20-2013, 12:20 AM #1 1stgen View Profile View Forum Posts Private Message View Blog Entries Yup Join Date Aug 2008 Location Tucson, Arizona Posts 782 Thanks  31 Thanks  15 Thanked in14 Posts Total Contributions For
1stgen     $ 0.00 Gen3 fcd? Or alternative Prolly in the wrong area...but has anyone had success with any of the FCDs for a gen 3? I tried using an aem fic-6 with maf clamp, an emanage ultimate with boost limit cut and and both iterations from his and greddy. I even fabbed up a few clamp type from radio shack. But have yet to find something that is consistent.

As of now I have a manual boost controller setup on the map line to vent of pressure in excess of 16psi but it is currently only good up to around 22 psi when the physical dimensions will not allow the volume of air needed to still lower it to a useable map voltage range.

I had tried replacing the gen3 map with a gm 3 bar, as the values do scale somewhat correctly to eliminate fuel cut, but it won't start or idle because of the much lower off boost voltages... Reply With Quote 11-20-2013, 09:06 AM #2 CJMR2T View Profile View Forum Posts Private Message View Blog Entries Fabricator / PE Join Date Oct 2009 Location Lakeland, FL (just north of the Pythons) Posts 8,576 Thanks  5 Thanks  1,062 Thanked in948 Posts Total Contributions For
CJMR2T     $ 25.00 You might be able to get the GM 3bar to work if you go to bigger injectors to offset the lower voltage scale. The problem though is timing is going to be advanced more also cause of the lower PIM signal voltage.

In all honesty though, if you are to the point that you want to pass the OE ECU boost limit point, you should going to an aftermarket full standalone ECU. Reply With Quote 11-20-2013, 12:02 PM #3 1stgen View Profile View Forum Posts Private Message View Blog Entries Yup Join Date Aug 2008 Location Tucson, Arizona Posts 782 Thanks  31 Thanks  15 Thanked in14 Posts Total Contributions For
1stgen     $ 0.00 Originally Posted by CJMR2T You might be able to get the GM 3bar to work if you go to bigger injectors to offset the lower voltage scale. The problem though is timing is going to be advanced more also cause of the lower PIM signal voltage.

In all honesty though, if you are to the point that you want to pass the OE ECU boost limit point, you should going to an aftermarket full standalone ECU. I currently have 680cc injectors and was able to run them pretty efficiently on just tuning with fuel pressure. idle/cruise are nearly perfect at 14.2-15.4 afr. on low boost levels (6psi and under) it runs steady 11.3-11.6. Higher than that and the ecu is just dumping fuel with AFRs pegged at 10-11. This was on boost from around 13 psi-30psi (30 psi because I had a timing gear slip to 8* retarded exhaust) with no signs of knock...


Full stand alone is an option as I should just sell the emanage and FIC-6 and throw in the towel. (wasn't able to control 1280cc injectors at idle for my E85 setup)


Mabye if I turn up the fuel pressure the GM map will work better at idle/low rpm.... Reply With Quote « Previous Thread | Next Thread » Posting Permissions You may not post new threads You may not post replies You may not post attachments You may not edit your posts   BB code is On Smilies are On [IMG] code is On [VIDEO] code is On HTML code is Off

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