Quote:
Originally Posted by eriktufa
Just installed VRSF Down Pipe and put Stage 2 Tune Aggressive.
It feels slower for some reasons.
Attached Datalog Stage 1 and Stage 2.
Just confused :S
I used Virtual Dyno to measure HP and it is less than before (I know this is not the holy grail but it is a good tool for comparison)
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Well, both sets of datalogs(stage 1 and 2) looked really good. I recommend resetting to the default logging channels, the way you have it shows only cyl timing on on the stage 2 logs(it's easy enough to tell if your having corrections but not as easy as with the timing correction channels.)
As far as comparing the two: Stage 2 runs more boost in the mids than stage 1. The stage 2 datalogs have higher CATs, high enough to trigger the CAT correction table so your timing isn't as good as it
could be. That means that the timing on stage 1 and stage 2 looks really similar. On a cold night the timing on stage 2 will look better.
There's not really a BIG difference beyween stage 1 and 2 to begin with(with the exception that stage 2 should put down more torque in the low-mid range RPMS) and with those CATs on stage 2 it's even less of a difference. The car should still be a little quicker on stage 2.