Ev0
.....so I think Dogde has given the car new gear ratios to accomodate the extra power.
They didn't. All of the Mopar "Stage" packages for the SRT-4 are just engine mods. They do offer some suspension mods and a couple other things, but all of the "Stages" are just power. Also, these kits aren't on the car when you get it. You just buy the SRT-4, and then you add the kits later. Its not like the "Stage 3" car is a whole new model. Its just an SRT-4 with a ton of power mods.
The first one offered, "Stage 1" is only offered for 2003 models. It was a slightly tweaked ECU for more boost and some bigger injectors. It took power from 215hp up to 240hp, and torque from 240lb-ft up to 260lb-ft. This was a minor release though, because only 2003 models were able to use it. All SRT-4s from 2004 on already had it stock.
Next was "Stage 2" released about a year ago or so. It came with a new ECU and injectors again. But, also had a different wastegate actuator and a 3 bar TIP sensor. And, it came with the "Turbo Toys" pack that mounted in the car on the bottom of the dash. That was where you would adjust the boost setting and use the intercooler sprayers that also come with "Stage 2" now. And you are able to select the "high octane" mode that was now available with the new ECU. Overall, the kit brings power up to either 265hp/280lb-ft or 280hp/300lb-ft depending on which mode your in, high octane or pump gas.
Now, with "Stage 3" Mopar is going all out. The new "Stage 3" takes it all up, and actually over the limit. It comes with a new fuel pump, larger fuel rail, big turbo, and a specific "Stage 3" ECU. It can be purchased either separate, or as an add-on for "Stage 2" cars. If you don't have "Stage 2" you also get it with the 3.0bar MAP and TIP sensors, the "Turbo Toys" and the bigger injectors. All in all though, they're saying the "Stage 3" kit will be like $4k. So, add that to the fact that a stock SRT-4 is only $22k, and you have a car thats a little ove $26k that has huge power. It makes either 310hp/325lb-ft in pump gas mode, or 355hp/365lb-ft in high octane mode.
The BIG problem with all this though?????? Stage 3 is not street legal because of emmissions reasons. So, you'll have to do it yourself, since they won't sell it to you on a new car. And, then you'll have the problem of getting checked for emmissions, if you do that. We don't have checks here in Omaha, so its no biggie around these parts, but lots of places have to get checked. Either way though, we're talking about a car with well over 300hp that cost a little over $26k. Thats sweet.
And about the other problems some of you have. From 2004 on, they all came with a Quaife LSD stock. So, even with a lot of power, it will put it down fairly well. I've ridden in a "Stage 2" car, and the torque steer was noticable, but very controlable. Obviously, lots of power going through the front wheels will be a lot to ask of the car. But, these kits aren't sold stock. You buy the standard SRT-4, and then add the kits later.
And also, the SRT-4 will do over 160 fairly easily. So, I guess if you're comparing it to a Vette of something, they might "top out too soon" so you say. But, anything that does over 140mph or so is good in my book.
Hilg