HyperTech Programmer

[starks951]

Hey Folks... just found these forums and was hoping someone could help me with my HPIII? I just got my new 2004 Tahoe, had a 6" lift and some BFG 35"s put on it. The shop that put it on also included an HPIII so that they could adjust the speedo for the larger tires. I was reading some of the product literature and have come to the assumption that I can make some changes to the shift points and shift firmness so I get better hill climbing abilities (I live in park city and commute often to salt Lake city, a difference of about 3000ft)... I don't really know much about tuning the shift points and such and would appreciate some help from the forum on doing so... I understand the manual, but don't really understand what the changes will do and I am worried about messing up my nice new rig...

Thanks
-Starks951
04 Tahoe LT
Black/Tan, 6" Procomp Lift, 35" Tires, HPIII

[Shortbus]

Here is a good place to look for the rev and shift points.

http://www.automotiveforums.com/vbul...d.php?t=250925

[starks951]

It seems that this is ONLY if you have Intake, headers, exhaust and 160 stat.... would you have a suggestion if these items are not in place... ie should I bring the 2-3 and the 3-4 back to say +6 and +3 to be on the safe side?

Thanks again!!
-Starks951

[Shortbus]

You know its hard to say. Even with the hypertech manual they don't give you much to go on but i believe that 01blackerado gave a good basis to start tuning with. There are lots of variable and the only way to fully get the most from a tuner is to test it at the track.

For instance altitude, humidity ect are all going to affect just how you program your vehicle, as well as mods like exhaust t-stats and intakes. Get a good base setup going and work from there. I spent a good month tinkering all possible variables until I found out what worked best for my truck. These won't work at all for you as I have a V6 but I can tell you a bit of homework will pay off.

[starks951]

Excellent... thanks for the info... I will start muddling with it and do a little RTFM on the hypertech manual... also my local shop may have some ideas based on the local conditions...

[Sivart]

Hey guys, not to hijack a thread but are these programmers really worth the money ?I have kicked the idea around for a while now. I have a 96 Z-71 with a 305 vortech. I hate to spend the cash if I am not going to notice any power or torque gains.

[liftedhoe]

i bought one for my 99 and took it back 3 days later. really did not think it was worth what i paid.