OK here we go - I have the Gtech Pro - I played with it for a couple of 0-60 runs and came in at 8.0 and 7.8 - I also did a HP run and got a 242hp - this is at 39deg today - have not reset the #23 in a while so will try it again - also want to put the stock filter back on and then work my way thru my CAI system - going to try the single CAI - stage 1 and then the stage 3 and then my own system with the duel stock system then the tubes running down both sides - will put up a post as I get them done. This is what the manual states.
Weight is displayed on plate in door - it includes full passenger capacity - subtract 180 for each missing person - I am to assume that would be 5 on capacity - my thought is to subtract the 900 lbs and add driver weight.
I show 6650 gross wght so I put in 6025 lbs for my runs above. Just a side note - I also noticed that my door plate showes 17" rims but I have 20's could this be messing up the computer ? - I bought the truck with the 20's on the window sticker.
It also states - most tracks average your speed at the last 60 feet of the 1/4 mile run while your G-Tech measures your speed at the exact 1/4 mile post so some discrepancy is to be expected.
ACCURACY - the manual says
0-60 mph 1/100 sec
60-0 breaking 1 foot
1/4 mile E.T. 1/100 sec
1/4 mile speed .1 mph
horsepower 1 hp - this is of cource rearwheel which says is a 10 - 15 % loss through drive train
as far as measuring maximum H.P. it states that it will be delivered in the lower gears at close to red line so make sure to get up there in RPMS - to end measurement it says to go above 120
or slow down below 30 mph - it dose state it will be a few percent lower than on a dyno due to drag
as for the 0-60 and breaking - it says it has an intelligent feature of auto determining if you are going fo a 0-60 or a 1/4 mile - after going over 60 you can keep accelerating to the 1/4 mile or slow down the G-Tech will are trying to do - if you stay on it it will do the 1/4 mile time - if you start to slow down it will do the 0-60 measurement - also if you dont know the exact 1/4 mile mark - the G-Tech does the measuring for you ( what a nice little toy HUH ) it desplays the elapsed time and the mph at the 1/4 mile
It also does the instantaneous and continuous G's - the instantaneous G's will be cool to see off the line and stoping but I think if I try the Continuous G's I will be typing about how my truck is on its side and I have to get me a new one.
Any way - sorry for the long *** post but just trying to get some info out there and also get some back from you guys - thanks for reading and of course for all your thoughts and sugestions.