Dougnutz wrote:I'm new to tuning scubies but I have spent a lot of time tuning Detroit iron. Mostly Vettes and F-bodies. Anyway I'm curious why you would want to run a VE system.
Here's a snippet from the FAQ I'm working on:
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A. The purpose is to side step issues with the limitations of a MAF setup. The primary
issues are:
1. Stock and near-stock-diameter intakes will hit high voltage with moderate to large
turbochargers. A stock or stock-diameter intake with a large turbo is not adequate for this
reason.
2. Large diameter MAF setups are difficult to tune, and may never offer equal or acceptable
idle stability (i.e. stalling issues, hesitation, long tune times, extra troubleshooting)
3. Minor changes to the intake may cause unacceptable changes to the tune. This can require
retuning or at least ECU and wideband logging to confirm the changes are within acceptable
limits.
4. Even minor leaks can really screw up fueling on a MAF car. While SD doesn't eliminate
all problems with leaks, they're less of an issue. This is covered further later in this
FAQ.
There is also the benefit of being able to run both recirculating and vent-to-atmosphere
blow off valves with SD. There is no richness when the valve opens, no matter if the
air is being recirculated or dumped out of the intake system.
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I really am still working on it. I've been running it on my own car for over 3 months. Right now I'm watching what affect cold weather has on it. So far so good. I'm getting it coded for the 2005 STI B10J for a local to use with an FP Green 8cm.