birchfur
New member
- Joined
- Dec 24, 2007
- Location
- St Louis, MO
I am having some trouble getting my spark table dialed in. I found a map posted on here for a similar setup and started adjusting from there. My current setup is as follows. Stock B21ft, ported 90+, t3/t4 turbo, 3" downpipe and side exit exhaust, ipd turbo cam, 31x12x3 intercooler, 46# injectors with resistor pack. I am using ms1 v2.2 re-flashed with extra 029y4, hall sensor dizzy, bosch139 ignition module, blaster 2 coil. Have timing set to about 20degrees at 1100rpm. Everytime i get to around 3000-3500rpm, the enigne starts stumbling. I have tried adjusting the advance in the area this occurs +/- about 10degrees but cant seem to get rid of this. Maybe still to far advanced? I am still in the process of getting ve table dialed in as well, currently running rich for the most part but it doesnt seem like its so rich it would cause a misfire. Took out plugs and they look normal color. So far only tuning to about 9 psi. Don't know how to post my tables or current msq. Have file zipped but dont see any options to post it on here. Here is a datalog pic of when it started cutting out at about 3200rpm. Any advice greatly apprectiated.