Quote:
Originally Posted by xtn
I don't know anything about tuning, but from TPhil's description it sounds like you could set the TPS requirement to 0%, and that would make the cam switch purely RPM dependent regardless of throttle position.
Does that sound right TPhil?
edit: read further along the thread and see that up to the 12%-15% range would have pretty much the same result.
xtn
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The throttle is measured in degrees. It can be set to a value as low as closed throttle and it will be of no detriment to anything other than MPG if you are cruising steady-state at higher revs.
To include more insight on this. Part of the reason why there is a TPS limit in the first place is b/c in the earlier days of R&D all of the cars were turbo charged and we found a low rpm switch-over to be beneficial to create exhuast energy and spool the turbo quicker in the region of 4,200 to 4,800 rpm. The results were huge torque gains in the midrange. The combo of this tuning and boost curve tuning per gear could accomodate a variety of powerbands. It's just a matter of making adjustments at your local track or autocross. So the idea was to allow for a load input if you did not want the second cam to come in premature. This concept does not apply as much to the SC cars, or cars that are driven on the track only.
With so many possibilities it is difficult to have a perfect map ready for ALL cars right out of the box. However, we do have a huge inventory of maps lately as more and more people are using these systems.
Forums like this will help make it easier for everyone to help each other.
Kris