tuner questions
 

can anyone tell me about the predator tuner or any other tuners? how exactly do these things work and will it really increase hp by like 15 or 20?
thanks

Depends on what you have .....the more mods you have the better chances you'll have for a gain but other than that more like 5-10 if that

I have the SCT Xcalibrator 2 which I bought from my dyno tuner (DynoSpeed Racing). The way the hand held tuner works is pretty simple. You plug it into your OBDII port which is located in the driver side area under the steering wheel and to the right a bit. You have to have a tune loaded on the tuner, which your dyno tuner will make or you will have a mail order tune where you tell someone your mods and they make the tune based off those mods, it's more generic. This is saved on your PC and using the programs available from SCT you can make some adjustments yourself and safe the file to the tuner using a USB cable. You then hook the tuner to your car and load the tune onto the car and your done.

I gained 13 rwhp and 22 rwtq from my tune alone, I was also running about 20% too lean.. here's the graph

http://www.csledd.com/ellie/dynosheet.jpg

Be sure to read the sticky aboout chips vs programmers. That thread may be of help to you to understand how they work.

thanks guys