Stillen Supercharger Starter Noise?

[cupcakez]

My car has been acting weird ever since I installed and used the Stillen Osiris windows UpRev tuning it came with since last October-ish. When I start it up, at random times (at least to me), it makes a rapid stuttering noise and to remedy it, I need to press the gas pedal each time it does that, otherwise the car just shuts off / does not work properly.

I am thinking it is because the Stillen tune is not very good (as everyone on 370z forum claims it to be) and that the stock 370z starter isn't strong enough for the stillen supercharger. It doesn't happen a lot, only when I have really low RPMs, or when I would press the brake on the car when slowing down (rarely but still does happen at this time), or when I am idling at a stop light.

Anyone else have this issue at all?
Should I call Stillen about it?

Thanks all

[turtle64b]

Do you have a wideband meter? My car would do that sometimes on the original revision of my tune. AFRs would drop to the bottom of the meter and the engine would sputter because it was getting flooded with gas. Your starter only comes into play when starting the car, never (hopefully) while its running. I'm @ 5kish miles on mine now with the stock starter and no issues.

I think that a real tune will help you. If you bought the kit new, definitely call Stillen, if not I would say get in touch with a local tuner and get it done right. Sebastian @ SpecialtyZ does most of the Stillen A2A guys' tune, but I imagine he could be a great help to you too.