adenjdannenmaier Posted July 26, 2017 Share Posted July 26, 2017 Hi all you Subaru gurus I'm hoping you can shed some light on my situation. I recently made some preparations to my car ready for a remap and to hopefully get some good gains. but my issue occurred after i upgraded the injectors and fuel pump, the car runs and idles fine but when it gets into boost the car bogs down and i suspect this is caused by to much fuel and not enough air but i could be wrong. but as i said this is prep for a remap and the mixtures can be sorted out when mapped. i just wanted to know if anyone else had this issue when doing that same mods. and if there is anything i can do to try and resolve the issue myself prior to taking it to the dyno i.e wind the boost up. Any and all help will be appreciated. Thanks in advance. Quote Link to comment Share on other sites More sharing options...
stants Posted July 26, 2017 Share Posted July 26, 2017 Injectors will be culprit, if you only do one thing stay off boost until mapping. Normally people either fit them the day before mapping and drive like a granny or take them to be fitted day of map Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
adenjdannenmaier Posted July 26, 2017 Author Share Posted July 26, 2017 I suspected it was something to with that i just wanted to check, its not my daily so i think i'll be safe and when i take it to get mapped i'll make sure to stay out of boost. Thank you for you help. Quote Link to comment Share on other sites More sharing options...
Tidgy Posted July 26, 2017 Share Posted July 26, 2017 Just hope you havn't damaged your engine. Never ever try and drive it hard after major mods without it being mapped. Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted July 26, 2017 Share Posted July 26, 2017 What size was the original injectors and what size did you upgrade to ?. if it's gonna be a long while before it's mapped , I'd try not to use it at all . As excessive overfuelling will "wash " the bores if oil and can thin the oil in the sump. Quote Link to comment Share on other sites More sharing options...
adenjdannenmaier Posted July 26, 2017 Author Share Posted July 26, 2017 I had standard yellow injectors and swapped them for pink sti injector. I only drove it the once and once I realised that it wasn't running right I crawled it home and I only turn it over for bit now and then just to get the fluids moving. But I haven't driven it since Quote Link to comment Share on other sites More sharing options...
savage bulldogs Posted July 26, 2017 Share Posted July 26, 2017 440cc to 550 cc shouldn't be too bad as long as your running standard fuel pressure . Definitely stay off boost and try to only drive it on the way to get mapped . I had to drive mine 40 miles to my mapper off boost . No problems apart from spitting flames on the overrun,rough idle and heavy fuel consumption (for off boost driving) . If your worried check the oil regularly to see if it smells of fuel and if it's due a service soon, change it after its mapped [emoji6] Quote Link to comment Share on other sites More sharing options...
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