I built a single turbo kit for my 2005 ram 1500. 4.7L I am using a Begi fmu that I have sorted out and have a decent tune when wot(open loop) 30lb injectors. Return style fuel system, walbro 255 pump in tank. without getting in to a custom tune I've been looking for ways to enrich fuel when in part throttle boost(closed loop) from all my research on the net the Dodge pcm seems to be almost impossible to tune. I came across the unit from split second. Has anyone used one of these before with good results? Thanks.

 

OK. Thanks. I didn't think split second would sell junk as we've used there tuners before with good results. Reading more into that particular box it said it created sweeping 02 signals not just a resister...?

 

I'll vouch for Split Second. I worked with them a lot during the Viper/Roe racing periods. They build a lot of devices that alter MAP, MAF, and o2 signals for vehicles with no other tuning options to use larger injectors, superchargers, turbo's, ect.ect. The devices, while a bit gimmicky in execution compared to a standalone EMS or full blown piggyback were well made and actually did what they were meant to. I've got one on my Jeep right now, an ARC-1 from Roe Racing. It allows me to alter my MAP sensor signals so I can change fueling under WOT.

 

I'm aware you said you don't want to get into custom tuning, but I have to agree with going the HPtuners route, or go full on stand alone. There are lots of them coming to market now a days. I personally use Mega Squirt or FAST, but they are all certainly better than your factory setup from Dodge.