Your choice in injectors for staying with the stock block

[jamesm]

Originally Posted by HRTROB

What kind of issues are you having with the DW injectors?

I'm running the 700cc DW and I'm experiencing an idle dip when quickly jabbing the throttle at idle. I already had the car retuned several times by my tuner but they still could not tune it out. I was thinking that maybe it's the injectors. Initially I would get the idle dip even with slight tip in of the throttle but my tuner was able to fix that.

Startup is also not that smooth. When starting it would feel like the engine is dying then it would idle normally. Sometimes I have to crank it up a second time before it starts.

All this happened when I swapped the injectors. What do you guys think?

I know two other people who are having the same problem. Hard starting and idle dipping. We all have the same DW injectors and same tuner.

I got to try a Full Blown turbocharged car with Full Blown injectors tuned by the same tuner. It was very smooth. No idle dipping and startup was smooth.

basically the same things you're seeing. the response on the very low end isn't consistent, so no amount of tuning will get them to stay dialed-in at low ipw. this results in idle dips and other issues associated with high fueling error at very low ipw/mafv.

but the real reason is that one of them just doesn't fit right into the fuel rail, which causes it to leak a bit whenever i first pressurize the fuel system after working on it.

[Reaper]

@Cross I pmed you again.

Sent from my SAMSUNG-SGH-I747 using Tapatalk

[CSG David]

I must have gotten a good set of DW1000 when I was working on a different platform. No leaking and actually idled better than the ID1000. Hot and cold startups were easier than the ID1000 as well. I probably need to spend a lot more time with ID1000 in the future though. I keep hearing that they are the best.

[AZFA20]

Bosch EV14 1000CC here. Basically not even using them though. At most 20%.