One of the guys that works at the track with me works for ProCharger. While at a racers meeting last night, he told me has installed 2 of them already in the trucks. Apparently there's 2 injectors in the TB in there system. The Unichip does not alter anything with the factory ECM. It just gets it's information from it, and as boost rises, it gives the additional fuel necessary for the A/F ratio.

He told me to give him a call, and he'll introduce me to the new guy in charge of the HEMI projects and show me around the facility. Mark apparently does not work there anymore.

No problem. Again, soon as the weather gets nice enough, I'll be takin' a trip down there and looking at the HEMI aspect of the facility, and take the truck for a spin.

What exactly was wrong with the Procharger kit? What's gonna make the Vortech better? Unless they have their own specific tuner, that's the only thing that inhibits these trucks: the lack of a good tuner, i.e. a Diablo, or SCT, or anything for that matter.

You can't push anymore psi than what Procharger had, otherwise you jeopardise the motor itself, so again... what's gonna make the Vortech so much better?

I have been running the Procharger 6lb kit for the last 2 months. Im using there unichip and 2 69lb an hour aux injectors. Power is good, but the interaction with MDS is not so good. When crusing and MDS engauges the manifold pressure drops alot. It almost goes to 0. The unichips MAP sometimes will add fuel when not in boost. Its not alot around 12.5-13.9 AFR. This does not bother me, what does is the PCM is still in closedloop mode. While the unichip is supplying fuel, the stock o2's are telling the PCM to subtract fuel.....see in closedloop modes the 02's will fight to hit 14.7 AFR. I dont see this being a problem unless the LT fuel trims are altered alot.

If they wanted to do it right with the unichip they would have sent a false load signal depending upon ETC value. This would have simulated a heavy load on the PCM. Fuel trims raise, MDS kicks off, and timing would run off a lower table.

I have seen up to 3 degrees of knock retard under normal driving, not boost. I changed the spark plugs to a cooler range plug and that disapeared.

I have been waiting for Diablosport to come out. I have read alot on it. They are close, real close to having a reliable product. When this reveals a release date, who knows, but when it does......8 50lb injectors, 2-bar MAP, MDS delete, Slight reduction in timing, and a good CMR tune should take care off all the small issues.

I have not heard any detonation. That would kill this bottom end, but the hemi 5.7's major downfall for boost strength is its pistons. The top ring to top deck clearence is very small. This metal lip will break above 6lbs of boost.

Im gonna buy another motor used and learn how to build it up with forged guts and a slightly lower compression (8.5-8.7). I will do this while I drive my stocker around. If I blow it up, I will just swap out the blocks. It should be able to handle abuse at 9lbs. I only ever plan on running 5-6lbs. Anything after that and the trans will die.

If you boost, watch oil change content, listen for detonation, log AFR, Log knock retard, and watch fluid temps with a scan gauge. Most scan gauges pick up stock temp sendors and you will not have to buy additional gauges.