Im considering getting it. Does anyone own one? How accurate is it? (according to you guys, not what the manual says) Aight thanks.

 

i'm hoping it's hella inaccurate. my 0-60 times average at 9.12 sec.
yeah, i've got an auto, but it can't be that slow. i'm going to retry it this weekend after i remove my subwoofer box and some other junk.

haven't tried the hp measurement yet.

 

0-60 and 1/4 are pretty good. Most track comparisons have shown within +/1 .1sec times.

Trap speeds are high because it reads actual 1320' speed not the end average (last 60' avg?)

Never got good HP or skid #'s myself. And really don't want to test the brake #'s

Talked with a Corvair owner and because of soft springs and lots of weight trans on those he could get within .5sec accuracy. On Maxima's it seems fine though.

 

I think everyone that's into performance modifications should have one. Horse power measurement doesn't work well. I've heard that the GTech measures horse power acurately on rear wheel drive cars.

With my GTech my runs are normally with in the following range:

6.35 to 7.10 secs 0-60 (no mods -yet )
(Haven't really payed much attention to 1/4 mile runs

 

They are good to gauge times. If you run on the same road after each mod, it'll show you your gains.

Also, going on a very slight incline/decline can greatly alter times (as proven by CalsonicSE with a 1 sec difference).

 

like Kev said, they are good for doing relative measurements in between mods and stuff. The may not be very accurate in terms of real world times, but will be consistent....

 

tested mine at the drag strip numerous times...

always seems to read 1/10th - 2/10ths QUICKER (E.T.) than actual time the track says...
BUT the speed (MPH) is always waaaaay off...

For instance:
Just used the GTech the other days...results:
14.56 @ 104mph.... uhhhh i think not!