davcivic

My brother just purchased an obd2 scan tool, to read and clear cel codes and check sensors, it actually gives you voltages, water temp, rpms, maf and map signals anything that it's monitored by the ecu. It also has a 1/4 mile fuction, it starts working as soon as the rpm signal starts moving and measures the time. It also has a dyno function. I have not tested this thing yet, of course it will not be accurate, but could be fun. I hooked it up one night in the WRX with my laptop. It was raining so I wasn't able to run the 1/4 or the dyno, but I checked everything else and cleared my cat deficiency cel.
I will post on results as soon as I can get this scan tool again.

d16forlife

This^^^ Plugs into this vvv





:P :P

accordepicenter

orrrr you can hit up a REAL dyno and save the headaches

baldur

This suff actually works pretty good if the information you put in isn't too far off. It's pretty consistent and that's all that matters. Peak power numbers are just that, numbers and don't mean much on their own anyways.
It's a pretty good tool for when mapping on the street, it can tell you whether you're faster or slower than last run, much more consistent than the butt dyno. Plus you don't have the cooling problems you have on the chassis dyno.
The G tech, although it produces fishy numbers it's kind of consistent, but it doesn't tell you the torque curve so you don't know where the improvement was.
If you want a true horsepower reading and laboratory level mapping, get an engine dyno with a water or eddy brake.