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08-07-2017, 02:31 PM | #1 |
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(Thread Starter) | Not Ranked : 0 score CX-7 modding and forum noob Removed head ported (small amount) and polished runners and also combustion chambers. Cleaned valves adjusted valve/tappet clearences Replaced timing chain and VVT of course almost everything is new or inspected to do with installed two OCCs one on valve cover and one for PCV changed/upgraded?? to KO4/882 turbo Installed a custom water to air intercooler Installed a SSQV (ebay knockoff) reculating BOV And a few other changes....but here where you're brilliant minds come in.. The "Speed 7" runs ok but there is something happening when I accelerate hard. It will start to studder and back fire when boost gets above 15 psi. I also get a BOV flutter when boosting for a longer period of time and gradually increase boost (I know ebay knock off) but not sure about. I'm seeing some weird timing advance changes and not sure what it should be doing. I dont have a tuner or anything like that but i do have and obd2 reader do i have some type on monitor to see some of what is going on. I did get a little over my head on this build with out a tuner or the money to do it all "right" Not 100% sire it timed right but it idles at about 10* which is what I read here on another post it should be Please help if you got suggestion where i can look from here. I attached a screenshot of the timing advance and other data. |
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