shott:
http://www.bgchrysler.com/Service/Hi...b_g_flash.html
This guy isn't like Dan (the Fastman), or the guys over at Hughes. He won't want to chat a whole lot, but he's nice enough, apparently he knows his stuff, and delivers. He did for me anyway. He didn't program any of the packages listed on that site into my pcm, he just did it according to the mods I have and what I wanted.

I had a hard time finding a used pcm. I called every yard in town, and walked around a pull it yourself yard for an hour. I ended up finding one at an "online junkyard" for a hundred bucks. It doesn't have to match exactly. The one I found was off of a 2001 2500. I called him and asked if it would work. If you decide to go this route, I would wait until you're done modding so you can get the most bang for your buck.

 

Thanks for the tip mopowar... Yeah here in Nashville metro area we have emissions testings, so I will definetly be saving the original PCM...

What about the Mileage? Did they flash that in too or is that controlled on a seperate module?

 

You read my mind. I had to run into town and pick up some material, and the whole time I'm thinking...how in the hell is my speedo exactly the same as it was when I didn't tell that guy what size tires I'm running. Then I was remembering that, when I set the speedo with the Superchips, I heard some kind of clicking behind the dash or maybe on the firewall. It sounded like a signal flasher, only not as repetitive. Then, I look down at the odometer, and boom it hit me. There must be a seperate controller for the speedo and the odometer. It could also be that the pcm and some other module both store the info so that if one gets fried, the other can indicate correct mileage for the vehicle. I didn't tell B&G how many miles were on the truck either.

 

Today was the first day since installing the flashed pcm that I have gone on an extended drive. I drove 159 miles total, around 30 of which were through a metro/urban area where I had to stop at maybe 12-14 lights,then I filled back up to calculate. I got 15.9 miles per gallon. The last calc. I did was 14.5, but this was before I replaced my heads, put headers on, and installed the 1.7 roller rockers. Keep in mind that I cleaned my cylinders and pistons spotless when I put the new heads on. So, any gains in mileage could be attributed to that. I am fairly confident that the flash did not hurt my mileage at all. Also it MAY have helped. I corresponded with another fellow on here that said he was getting ~15 with a cam and a dyno flashed pcm while turning 348hp. Lucky bastard, his father owns a performance shop, so it was easy for him though he said his old man made him pay every step of the way.

Also, I know now that it's not the pcm that contains your speedo callibration or mileage data. I have it narrowed down to two components. One is the cab, it stands for collision avoidance bus or some such chit. It doesn't make you avoid collisions, it just makes sure that all the data being transferred between the different devices in the truck doesn't crash the pcm. There is also an instrument cluster board where this info might be contained.

 

Forgot to mention, cruise was set on 79 on the highway. Also along with the heads, headers, and rr's I put a new chain on, so that may have helped mileage to.

 

So, You have over $500 into this new PCM? Thats quite a bit, considering you probably have to run 92 octane or better as well

 

$530 + $18.00 shipping there. It's worth it to me, but you'd have to try it out to see how big of a difference it makes with the torque management gone. Basically, torrq mgmt pulls 12* of timing out of the motor under hard acceleration. I was already used to the high octane stuff from the Superchips. I guess it all depends on what you want. I don't do ruts or power lines and I hate an ill handling vehicle. So, I basically have beefed up the motor and drivetrain instead of dumping a bunch into wheels, tires, suspension, etc. I have a vehicle that I can haul stuff in or behind, take offroad to fishing holes & camping spots, and that hauls fvcking ***.

The guy at B&G said that it may work with regular test, but I have not tried it.

 

I figured Id wait for a smoking deal on a hypertech or suprchip.
If I felt quite a bit of difference than I might invest in one of these.

Now is the superchip a programmer like the hypertech? Can it check codes as well. I have a code reader already and if I could get rid of that I wouldnt mind. But the nice thing about the code reader is that I could do any OBD2 vehicle and not just my own.

 

Yeah, it reads codes. I might be selling mine. Now that I know the B&G flash does not adversly effect mileage, I'm going to call them and see if they'll give me a price break on doing my other one. If they go low enough to offset the price with the sale of the Superchip, I'm going to do it. I know why Super/Hyper do not change shift points, or remove t management, but it would be interesting to hear what line of bs they shoot out as to why they don't.

 

I cant believe they charge that much for just programming. The customer made the biggest investment by getting the PCM, I have to believe they are making much more than a 50% profit off of programming.

I was reading that people prefer the hypertech over the Superchip. Why is that?


Also, Why dont superchip and hypertech dont change the shift points or the torque management?