Ring & Pinion teeth count

[Stroverlander]

Good point, I have the same Jet programmer as you #15015, missed that the other one is the speed control unit.

[photo_van]

hey Crawler, your Jet will do more than one vehicle right? Ever travel up the 395? Not so subtle hint.

[97CargoCrawler]

It comes with 3 licenses, additional available for $100 each. If I ever travel up that way you're welcome to use it. I was nervous as hell watching the progress bar for 30 minutes or so. If anything goes wrong the vehicle is disabled and a new computer (or chip) is the only way out of that scenario. I get to do it again in a few weeks.

Looks like the unit he has will compensate for gearing and tire sizes depending on how the switches are set. Personally I don't like that the unit is an intermediate device. It seems to me that if the actual PCM, ECU or whatever knows what's up then it will make compensations correctly for engine management and such as well. His unit takes pulses from the VSS and adapts them for the PCM. The LUTS in the EEPROM don't change. I'm sure the end result is nearly the same, but the JET DST actually reprograms the EEPROM in the vehicles computer.

[Stroverlander]

I'm surprised to see that the programmer has 3 licenses, everything I've read says it can only be used on one vehicle at a time. Good to know if indeed it can be used on up to three.

Forgot there are two versions #15024 for 96-00 models and #15015 for 01-05.

[LiftedAWDAstro]

What 97 crawler has isn't the standard programmer you and I have. He has a dealership level programmer that is used with a laptop and has the ability to adjust almost EVERY aspect of the ECM. Our Jet 15015 programmers only allow a few mods and the rest is what they (Jet) programmed in as far as fuel tables etc.

[Stroverlander]

Right on, the Dynamic Spectrum Tuner? Looks nice, I just installed the demo version to check out even though it doesn't look like it's compatible with '04 Astro.

[97CargoCrawler]

What 97 crawler has isn't the standard programmer you and I have. He has a dealership level programmer that is used with a laptop and has the ability to adjust almost EVERY aspect of the ECM. Our Jet 15015 programmers only allow a few mods and the rest is what they (Jet) programmed in as far as fuel tables etc.

Yes and no. I have BOTH a dealership level TECH 2 programmer AND a JET DST Part #: 14005. The TECH 2 lets me do any number of vehicles and the JET product lets me do up to three vehicles out of the box, and more if I purchase additional licenses.

JET DST Part #: 14005 is compatible with almost all GMC and Chevy trucks/vans since 1996. It will work on an '04 Safari no problem.

Anyway, semantics. If you can get your hands on one it's a pretty awesome little toy. Doesn't offer any on the fly functions though, which kinda blows.

I won't even get into the awesomeness of the TECH 2. Some folks around here think I'm some sort of moron for buying it.

[Stroverlander]

That's cool, sounds like you're well sorted with tuning tools! Down the road, may sell my 15015 programmer and pick up the DST for a bit more tuning potential.