danio3834

All of these things would bring modest gains to the Challenger, of course they all have their trade offs. All of those things put together, everythign else being stock, you might see a 40 rwhp increase, maybe 50 on a good day. Its all a step in the right direction. The true instant power mod will be forced induction. Adding a supercharger even with only 6 psi boost will add a ton of hp, but may sacrifice some driveability.

McDonald

Thats one thing i never really cared for is stripping interior to lose 70 pounds or whatever.. That gets you no where every 100 lbs is a 10th of a second. Plus i like having my interior.

MotionParts.com

Im pretty skeptical of the "predicted numbers." Would like to see some actual word from the true street performances.

1 Bad Mirada

every tenth counts...

jdb840

They did an article in Mopar muscle a couple of months ago on the 5.7 Hemi Charger. I will have to dig it up for exact numbers.

They did SLP's header and exhaust
Cold air induction
Program computer.

I want to say they ran a 13.5 in the 1/4mile after all of that. Then if your were to buy heads, which have incredible flow numbers, that would easily put you in the 12's

BootCamp

I won't be doing any engine mods to my Challenger until the SRT team comes up with better shafts (they're supposed to be in the works). The guys modding thier Chargers (with the same drivetrains as expected in the Challengers) are tearing them out from under thier cars on the strip.
No sense in building more HP if you're going to break parts getting it to the pavement.
I'll wait.

jdb840

Are you talking about the shaft in the transmission?? I haven't heard about that problem, but the magazines aren't really going to tell you that kind of stuff.

BootCamp

No Sir.
I've read threads in other forums that the new Charger's are breaking rear shafts/axles under the pressure of forced induction and NOs. Since we haven't modded our R/T at all (yet), I didn't pay particular attention to whether the shafts were snapping or stripping. But it seemed to be the guys who were modding heavily that were having the most issues - obviously, very high HP issues.
If I happen to come across the thread(s), I'll post a link.

jdb840

I would like to read up on that if you happen to come across another thread about this issue.
I guess it will be time for the distributors to start making heavy duty parts for these cars. The performance parts in my opinion are laking for the hemi, compared to the LS1's and LS2's. I hope more vendors step up to the plate, and make this hemi crediable as it should be. There's a lot of potential in these engines.

I know on my GP the biggest problem when modding the car is the transmission. I guess being it's a FWD vehicle. The input shaft aren't shrong enough even for 300HP unless you baby it. Also the 4th gear shaft is also known to fail. I luckly made it 120K miles before having to replace my tranny

Tass13

An underdriven supercharger (very little parasitic loss) with the right cool air induction, a modest N20 boost and the tremec 6 speed (with the listed factory gear ratio's) in a Challenger with the 6.1 Hemi and the right chipset should give any Mopar driver an advantage over the chuckle headed, put your foot to the floor and dont hit anything Mustang driver.
We all know that its the driver SKILL that wins most of the time and any truly skilled driver has always preferred a Mopar when available. (Are you listening Mr. Petty??) And besides, lest we forget gentlemen, in the end, there is no substitute for Cubic Inches when building a beast and Ford doesnt have the balls to match the 6.1 hemi (6.6 in the works?) in a Mustang with gas at 3+ a gallon.
I would fret more over what GM might do with a new Camaro or Vette, no?

Now, screw the tie and jacket set SRT8 and start building the 2009 RT with a Pistol Grip 6 speed and a Hemi so I can finally ORDER a real car from Mopar!!