I was watching HP TV like I do every sat morning and they put a twin turbo kit on a new challenger. They say that each turbo is capable of 500hp each, but they only used 5lb of the capable 24lbs. It dynoed @ 500 to the rear wheels. Have any of the powerblock shows on spike done one on the cherokee?

Never seen them do anything with our rigs.. Wish they would though.

yeah i saw it briefly at work, as they were putting the build together i started dreamin lol

They need to show the hemi more love....but people not knowing is kind of a plus for sleeper factor. ;)

We need a link, man. :D

Twin turbos 484.77 rwhp & 466.65 max torque....:( guess they where playing it safe.That looked like a $10k set up easy...I also like how the turbos are bolted to the stock exhaust manifold & how its pre assembled & pulls fresh air from the front of the car..but I would hate to say I got a Twin turbo challanger & spent over $10k & only got 484 hp..they did mention about how one should drop in some lower compression piston & crank the boost.

and that magnuson 2010 camaro ss put down 448 rwhp! lol

Twin turbos 484.77 rwhp & 466.65 max torque....:( guess they where playing it safe.That looked like a $10k set up easy...I also like how the turbos are bolted to the stock exhaust manifold & how its pre assembled & pulls fresh air from the front of the car..but I would hate to say I got a Twin turbo challanger & spent over $10k & only got 484 hp..they did mention about how one should drop in some lower compression piston & crank the boost.

and that magnuson 2010 camaro ss put down 448 rwhp! lol


Plus they should be Forged.





Jack

I was watching HP TV like I do every sat morning and they put a twin turbo kit on a new challenger. They say that each turbo is capable of 500hp each, but they only used 4lb of the capable 25lbs. It dynoed @ 500 to the rear wheels. Have any of the powerblock shows on spike done one on the cherokee?

I don't recall them saying how much the setup cost. The thing i was confused about is that they put twin turbos capable of all that boost, but dialed in it at 4lbs to be safe. Seems to me you wouldn't need both turbos for just 4lbs of boost, probably could've cut the costs by 50% and only installed 1 turbo for 4lbs of boost.

It's on now.

I just watched it this morning and that set up was on 4lbs to remain "safe". With forged internals and lower compression they said the turbos could handle 1100 hp.

I also thought they said the torque was 497.....

When I spoke with Tim @ Modular depot on Friday, He said they were working on a twin turbo set up for our rigs!!

Exactly, a better bottom end and that thing would scream!

I don't recall them saying how much the setup cost. The thing i was confused about is that they put twin turbos capable of all that boost, but dialed in it at 4lbs to be safe. Seems to me you wouldn't need both turbos for just 4lbs of boost, probably could've cut the costs by 50% and only installed 1 turbo for 4lbs of boost.
Twin turbochargers are no more capable of big boost, and big numbers, than a single. In fact, if the numbers is all you're after, a single is better.

It looked like a nice set-up. I too laughed at the 4# number. I think they were playing it really safe. :D They were right, it was a great sleeper kit as all the plumbing was out of site. Just need to beef up that engine a little and see what it's capable of.

Hellion said they would do one for our jeeps and have been looking for a donor jeep for months.

Guys, I don't know 1/10th what you guys do, so I have to ask. At what point will a new transmission be needed. Realize 4lbs and those numbers aren't huge in the grand scheme of some of the figures you guys throw down, but is that too much for the stock tranny? At what point, does a stock tranny get destroyed?

thanks

if i remember correctly, the SRT LX platform trannies are good for upwards of 700-800hp. the rear axles can handle 1000hp. also think that those are dyno numbers, the engine itself is producing roughly 18% more hp than that, the motor is making roughly 535hp on 4lbs of boost. SRT motors can handle a little more boost as well from what i've heard, again they were playing it safe. this is only the second HEMI they have worked on, the first was a 5.7L Charger police cruiser. They really don't show the HEMI much love on the power block, the camaro was out for a 6 months before they modded on, the HEMI out for 3 yrs before they touch a charger? They have have done an aftermarket exhaust on a yellow superbee a few yrs back, but that is it. they have done several mustangs. whatever.... story of my life. i guess we aren't riders on the bandwagon, we march to the beat of a different drum!

thanks, Derek. Yeah, i remember the police cruiser they did up. Glad that was Georgia or wherever, and not my backyard!!

If the tranny is good for so much HP, how come so many guys swap them out? To be honest, when I saw how easy the install was on the show, I was thinking to myself that maybe its doable to get a single Turbo on a good budget, but I ended taht conversation with myself b/c I thought it would require a new tranny. Then a 7 or 8k job, turns into a 16 or 17k job. Big diff.

thanks!

Great to see some F/I kits being done on modern chryler's, its well overdue IMO.

However, I think that what was understated is that they're playing with fire here. Its one thing to say that "it's capable of 1100hp", its something else to actually get it to work. Massive upgrades to the fuel system and drivetrain would have to be part of the project. The tuning wouldn't be any piece of cake either.. getting it to drive on the street with good manners and still make 1000hp at the wheels on these Hemis is hit-and-miss, especially when you start talking about 3BAR MAP's mixed with blower cam profiles and the somewhat sticky electronic throttle body.

But its not like its impossible, 1000hp challengers were out there as early as late 2008.

if i remember correctly, the SRT LX platform trannies are good for upwards of 700-800hp. the rear axles can handle 1000hp. also think that those are dyno numbers, the engine itself is producing roughly 18% more hp than that, the motor is making roughly 535hp on 4lbs of boost. SRT motors can handle a little more boost as well from what i've heard, again they were playing it safe. this is only the second HEMI they have worked on, the first was a 5.7L Charger police cruiser. They really don't show the HEMI much love on the power block, the camaro was out for a 6 months before they modded on, the HEMI out for 3 yrs before they touch a charger? They have have done an aftermarket exhaust on a yellow superbee a few yrs back, but that is it. they have done several mustangs. whatever.... story of my life. i guess we aren't riders on the bandwagon, we march to the beat of a different drum!

thanks, Derek. Yeah, i remember the police cruiser they did up. Glad that was Georgia or wherever, and not my backyard!!

If the tranny is good for so much HP, how come so many guys swap them out? To be honest, when I saw how easy the install was on the show, I was thinking to myself that maybe its doable to get a single Turbo on a good budget, but I ended taht conversation with myself b/c I thought it would require a new tranny. Then a 7 or 8k job, turns into a 16 or 17k job. Big diff.

thanks!


It isn't good to that much HP. They have the same trans as us. I believe the half shafts are rated at 1000hp only in the after market

Transmissions blowing are not a common factor among LXs. They are rated for up to 750hp.

http://www.chargerforums.com/forums/showthread.php?t=74653&highlight=tranny+horsepower+rating

Transmissions blowing are not a common factor among LXs. They are rated for up to 750hp.

http://www.chargerforums.com/forums/showthread.php?t=74653&highlight=tranny+horsepower+rating


I see nothing about 750hp. but I did see this "How much power can our transmissions handle? This transmission (the W5A580) is rated at a maximum of 428 ft. lbs of torque at the input. 580 newton meters = roughly 428 ft.lbs."

Where are these 1000hp rear half shafts coming from?

I see nothing about 750hp. but I did see this "How much power can our transmissions handle? This transmission (the W5A580) is rated at a maximum of 428 ft. lbs of torque at the input. 580 newton meters = roughly 428 ft.lbs."

Where are these 1000hp rear half shafts coming from?

The Getrag is the latest rear that guys have been buying from Chrysler and they are handling big power. I think they used a Standard tranny for that instal.

i stand corrected, 600hp from the engine to tranny without any mods, you can go slightly higher with a few minor mods, anything above and beyond requires a tougher tranny, i dunno about the torque numbers, the hp numbers are in the next post down. the torque doesn't make sense b/c the stock SRT makes more torque that that.

Hellion said they would do one for our jeeps and have been looking for a donor jeep for months.
I talked to them last week and they said they currently have nothing planned at this time for our Jeeps. They may have something at the end of the year if we were lucky, but don't count on it.

As for the tranny's and drive shafts, they should hold because the power doesn't hit at once unless you go with smaller turbos. I had twin 67's on my Cobra and had a stock tranny and it put down 767rwhp, 716 rwtq @ 16.8lbs w/ 16 degrees of timing. With the 67's, it allowed it to lag off the line, so it wasn't a hard launch. Hell I didn't even have any tire spin at a launch, with the MT DR's I was running.