I picked up a SC3865 a couple weeks ago and wanted to compare it to the DSP I have been running since January. Today was nice and I was done with class at noon so I went out and did some comparison runs with the SC and DSP. I ran 2 0-60 runs with each tune and one 1/4 mile run. I used the SC to log all of the times for consistency and also used my ipod touch with dynolicious to make sure nothing weird went on when datalogging with the SC and having a DSP tune loaded. WOT shift points were the same with all tunes. This was with no prep to the truck (still had the spare/tailgate/hard tonneau/subs/tool in the the truck).

Anyway, here is what I ended up with:

SC performance 91 with trans tuning:
0-60: 6.68, 6.66
1/4 mi: 15.17@89

DSP 93 canned tune:
0-60: 6.67, 6.66
1/4mi: 15.16@90

DSP 93 HemiFever Tune:
0-60: 6.51, 6.59 (spun)
1/4mi: 14.88@93

The times are kinda deceiving about it. The DSP 93 tune feels like it has more power, but it looses time on the shift from first to second. The SC 91 has a little less power, but with the TM set to 8% it makes up for slightly less power with quicker shifts. I do not have dyno result to confirm this, but that is what my butt dyno says. I think if the DSP had TM adjustments it would be a little quicker.

 

i always had a feeling the DSP 93 tune gave out a little more punch. Great review. thanks

 

Good info.

93 giving more power? Say it aint so because those guys running 87 aint gonna wanna hear that.

 

Nicely done.

 

Thanks guys, I thought the results were interesting so I figured I would share since the DSP vs SC question comes up frequently.

Maybe when I have a chance I will do some 87oct tune runs and compare then. I only ran the DSP 87 for a day one time. It felt like it had the same power as stock to me.

 

very interesting. Thanks for taking the time to do the research/testing.

 

Thanks - good, interesting information.