The Sky RL is faster than the new Challenger R/T with 375hp.

fr0stb1t3 · 08-21-2008, 09:13 PM

Here is an article with actual driving result from the SRT8's younger brother. 4000lbs hurts a lot, even with 375hp.

enkymion · 08-21-2008, 09:50 PM

Good to know...

Bogie · 08-21-2008, 10:57 PM

And when the weight is close to rounded thousands, such as 4000 vs 3000, it makes the ratio easier to factor. 4000/3000 is 1.33. So you can take 1.33 times the RL HP to see a comparable HP for the Challenger. 260 X 1.33 = 346.

Given the Challenger has 375, and still seems to come up short, it raises some questions as to how the power is being put down in the Challenger.

Ooops, all I had to do was read the entire article. Challenger comes stock with the RS-A. Quote from the driver: "The grip of the RS-As disappears quickly". I suspect a Challenger with sticky tires should do much better.

shabby · 08-21-2008, 11:17 PM

Quote:

Originally Posted by Bogie

Given the Challenger has 375, and still seems to come up short, it raises some questions as to how the power is being put down in the Challenger.

With 235 wide rsa tires... no power is being put down. Even the srt8 comes with 245's, how can a performance car like this come with such narrow tires? Obviously the bean counters at chrysler dont care about this becuase if they did they'd put some wide sticky tires out back.

BSRL · 08-22-2008, 05:25 AM

All I can say is wow, that is suprising. Must have more powertrain loss too??

kennysabarese · 08-22-2008, 08:55 AM

so then a dumb question, how good are the stock Sky tires?

SSRL · 08-22-2008, 09:07 AM

There is something special about how our power kicks in! I have done sprints against cars with 300HP ( BMW 335) and 330 - 360 ( G37, S4, SLK)

An I pass them every time. Not sure if its all about the Turbo. I have a stock RedLine and can not imagine having one with the power of say Eloys. INSANE!

compdoc777 · 08-22-2008, 09:37 AM

Quote:

Originally Posted by SSRL

There is something special about how our power kicks in! I have done sprints against cars with 300HP ( BMW 335) and 330 - 360 ( G37, S4, SLK)

An I pass them every time. Not sure if its all about the Turbo. I have a stock RedLine and can not imagine having one with the power of say Eloys. INSANE!

Torque and a turbo gets them every time.

SSRL · 08-22-2008, 09:44 AM

I suspect you're correct. I love this car!

Booster_RL · 08-22-2008, 11:19 AM

Quote:

Originally Posted by compdoc777

Torque and a turbo gets them every time.

What he said... plus this particular type of turbo even more so. The twin scroll turbo allows for that linear power curve more like an S/C. I absolutely love it.

**Stupidbikerboy** · 08-22-2008, 12:17 PM

Quote:

Originally Posted by BSRL

All I can say is wow, that is suprising. Must have more powertrain loss too??

They have those crappy autos too......

No manuals yet

fr0stb1t3 · 08-22-2008, 12:50 PM

Quote:

Originally Posted by Stupidbikerboy

They have those crappy autos too......

No manuals yet

Nope the R/T has a manual. That 5.9 was done with a 6 speed

Bogie · 08-22-2008, 12:53 PM

Could be marketing. If you come out under the curve, then you get better and better. If you come out with the best you've got, it can only get worse.

fr0stb1t3 · 08-22-2008, 01:07 PM

Quote:

Originally Posted by Bogie

Could be marketing. If you come out under the curve, then you get better and better. If you come out with the best you've got, it can only get worse.

Usually you do that with your own numbers, not a 3rd party magazines.

Bogie · 08-22-2008, 01:24 PM

Decided to do a weight/HP comparison. Challenger vs SKY. I am using the actual Challenger HP numbers and am equating what a SKY would need to match that performance:

SRT8: 425 HP
SKY: 303 HP

R/T: 375 HP <----- this is the one we're talking about in this thread.
SKY: 281 HP

SE: 250 HP
SKY: 201 HP

An RL can easily scoop an SE.

The R/T "should" have a slight advantage on the RL. Tests referenced in this thread have shown otherwise. Sounds like it has the HP, but might be lacking on tires and gearing.

The SRT8 should take a stock RL SKY easy. Our members with rides tuned 300+ will be competitive. R&T took an SRT8 to 0-60 in 4.8 and quarter mile in 13.3 @ 108.

**Stupidbikerboy** · 08-22-2008, 02:24 PM

Quote:

Originally Posted by fr0stb1t3

Nope the R/T has a manual. That 5.9 was done with a 6 speed

Ah, news to me, thanks

Lithium Lotus · 08-24-2008, 03:39 PM

Amazing, LS1 F-Body's even had 275 tires on all four if you bought a WS6, SS, or Firehawk. Chrysler amazes me all the time with them coming up short on their vehicles.

Bogie · 08-24-2008, 05:22 PM

Wider tires (alone) will not improve straight launch speed. They should provide better steering response. They should provide better cornering (lower aspect). They can be run with lower psi (which is where you might be able to get some launch grip). But same psi, same diameter, and there isn't much of a difference in launch grip.

The RSA is an all season tire. It does not have high performance grip. A higher grip 235 will perform better than than a "same grip" 275 on the 0 to 60 test.

GM tends to put the all season rubber on their mid to low level sports cars, and reserves the summer tires for the top end. That is why the NA Solstice/SKY run on all season RSA and the GXP/RL runs on Eagle F1 Summers.

As for the Challenger, the SRT8 runs on Eagle F1 tires. The R/T runs on RSA.

I'm guessing they figure those who buy the high end are doing so for the performance, and are willing to give up winter for high fun in the summer. Those buying mid to low are doing so for the looks. Hell, on a high production car, I bet well over half the buyers don't know what tires they are getting and half of those would go ape **** to find out they have summer only rubber. The basic mid to low challenger buyer expects all season performance.

For those who know, they will swap 'em out for their preferred tire anyway. So might as well provide a basic all season tire to cover most buyers, and let the diehards mod up.

lbsky · 08-24-2008, 05:46 PM

tires may be and issue, but the damn thing is too heavy. Same with the new Camaro, the damn thing weighs almost 3800lbs.

Bogie · 08-26-2008, 09:56 AM

Quote:

Originally Posted by lbsky

tires may be and issue, but the damn thing is too heavy. Same with the new Camaro, the damn thing weighs almost 3800lbs.

Yes, they are heavy, but they have the "muscle" to move it. Well, the top end versions do. The low end versions with the smaller engines are bought for looks. And considering the target buyer, perhaps less power is good.

LeadSled1 · 08-26-2008, 05:13 PM

The RSAs aren't that bad and are not the reason the car is running that slow. Look at the trap speed it is getting, only 100 mph for 375 hp is pretty pathetic.

smokinu · 10-20-2008, 03:46 PM

Quote:

Originally Posted by lbsky

08-21-2008, 09:13 PM	#1 (permalink)
fr0stb1t3 Senior Member Join Date: Jul 2008 Location: Highland Park, Texas Posts: 346 My Photos: (0)	The Sky RL is faster than the new Challenger R/T with 375hp. Here is an article with actual driving result from the SRT8's younger brother. 4000lbs hurts a lot, even with 375hp.

08-21-2008, 09:50 PM	#2 (permalink)
enkymion Senior Member Join Date: Jun 2008 Location: Greensboro NC Posts: 100 My Photos: (0)	Good to know... __________________ 2008 Redline - Chili Pepper Red Interest Free. 0% 6/29/08 - Took Delivery 11/24/08 - Stubby Antenna "You're" and "Your" are not the same.

08-21-2008, 10:57 PM	#3 (permalink)
Bogie Senior Member Join Date: Aug 2007 Location: Northern, VA Posts: 2,476 My Photos: (0)	And when the weight is close to rounded thousands, such as 4000 vs 3000, it makes the ratio easier to factor. 4000/3000 is 1.33. So you can take 1.33 times the RL HP to see a comparable HP for the Challenger. 260 X 1.33 = 346. Given the Challenger has 375, and still seems to come up short, it raises some questions as to how the power is being put down in the Challenger. Ooops, all I had to do was read the entire article. Challenger comes stock with the RS-A. Quote from the driver: "The grip of the RS-As disappears quickly". I suspect a Challenger with sticky tires should do much better. __________________ 2008 Redline Black Onyx Black/Red Leather Monsoon 6 Disc Spoiler French Transmission Born July 2007 Snagged 8/31/07 Belle? That's my car Alizée? That's my avatar Me? Forty something male skydriver Last edited by Bogie : 08-21-2008 at 11:00 PM.

08-22-2008, 05:25 AM	#5 (permalink)
BSRL Senior Member Join Date: Nov 2006 Location: Savannah, GA Posts: 746 My Photos: (2)	All I can say is wow, that is suprising. Must have more powertrain loss too?? __________________ My Car Domain Page: http://www.cardomain.com/ride/3051777

08-22-2008, 08:55 AM	#6 (permalink)
kennysabarese Senior Member Join Date: Mar 2007 Location: Northeast NJ Posts: 120 My Photos: (0)	so then a dumb question, how good are the stock Sky tires? __________________ 2007 Sky RL - Black on Black Purchased used with 8,500 miles 5/7/08 Chrome wheels RMR Style Bar - Silver Photos from MASSC Skylands Rally: http://www.kennysabarese.com/stuff/skylandsrally/

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08-22-2008, 09:07 AM	#7 (permalink)
SSRL Senior Member Join Date: Sep 2007 Location: North NJ Posts: 269 My Photos: (0)	There is something special about how our power kicks in! I have done sprints against cars with 300HP ( BMW 335) and 330 - 360 ( G37, S4, SLK) An I pass them every time. Not sure if its all about the Turbo. I have a stock RedLine and can not imagine having one with the power of say Eloys. INSANE! __________________ Do or don't do, There is no try.

08-22-2008, 09:44 AM	#9 (permalink)
SSRL Senior Member Join Date: Sep 2007 Location: North NJ Posts: 269 My Photos: (0)	I suspect you're correct. I love this car! __________________ Do or don't do, There is no try.

08-22-2008, 12:53 PM	#13 (permalink)
Bogie Senior Member Join Date: Aug 2007 Location: Northern, VA Posts: 2,476 My Photos: (0)	Could be marketing. If you come out under the curve, then you get better and better. If you come out with the best you've got, it can only get worse. __________________ 2008 Redline Black Onyx Black/Red Leather Monsoon 6 Disc Spoiler French Transmission Born July 2007 Snagged 8/31/07 Belle? That's my car Alizée? That's my avatar Me? Forty something male skydriver

08-22-2008, 01:24 PM	#15 (permalink)
Bogie Senior Member Join Date: Aug 2007 Location: Northern, VA Posts: 2,476 My Photos: (0)	Decided to do a weight/HP comparison. Challenger vs SKY. I am using the actual Challenger HP numbers and am equating what a SKY would need to match that performance: SRT8: 425 HP SKY: 303 HP R/T: 375 HP <----- this is the one we're talking about in this thread. SKY: 281 HP SE: 250 HP SKY: 201 HP An RL can easily scoop an SE. The R/T "should" have a slight advantage on the RL. Tests referenced in this thread have shown otherwise. Sounds like it has the HP, but might be lacking on tires and gearing. The SRT8 should take a stock RL SKY easy. Our members with rides tuned 300+ will be competitive. R&T took an SRT8 to 0-60 in 4.8 and quarter mile in 13.3 @ 108. __________________ 2008 Redline Black Onyx Black/Red Leather Monsoon 6 Disc Spoiler French Transmission Born July 2007 Snagged 8/31/07 Belle? That's my car Alizée? That's my avatar Me? Forty something male skydriver

08-24-2008, 03:39 PM	#17 (permalink)
Lithium Lotus Senior Member Join Date: Aug 2007 Location: Youngstown, Ohio Posts: 115 My Photos: (0)	Amazing, LS1 F-Body's even had 275 tires on all four if you bought a WS6, SS, or Firehawk. Chrysler amazes me all the time with them coming up short on their vehicles. __________________ 2007 Solstice GXP "Natsumi" Japanese female name that translates to Summer Beauty.

08-24-2008, 05:22 PM	#18 (permalink)
Bogie Senior Member Join Date: Aug 2007 Location: Northern, VA Posts: 2,476 My Photos: (0)	Wider tires (alone) will not improve straight launch speed. They should provide better steering response. They should provide better cornering (lower aspect). They can be run with lower psi (which is where you might be able to get some launch grip). But same psi, same diameter, and there isn't much of a difference in launch grip. The RSA is an all season tire. It does not have high performance grip. A higher grip 235 will perform better than than a "same grip" 275 on the 0 to 60 test. GM tends to put the all season rubber on their mid to low level sports cars, and reserves the summer tires for the top end. That is why the NA Solstice/SKY run on all season RSA and the GXP/RL runs on Eagle F1 Summers. As for the Challenger, the SRT8 runs on Eagle F1 tires. The R/T runs on RSA. I'm guessing they figure those who buy the high end are doing so for the performance, and are willing to give up winter for high fun in the summer. Those buying mid to low are doing so for the looks. Hell, on a high production car, I bet well over half the buyers don't know what tires they are getting and half of those would go ape ** to find out they have summer only rubber. The basic mid to low challenger buyer expects all season performance. For those who know, they will swap 'em out for their preferred tire anyway. So might as well provide a basic all season tire to cover most buyers, and let the diehards mod up. __________________ 2008 Redline** Black Onyx Black/Red Leather Monsoon 6 Disc Spoiler French Transmission Born July 2007 Snagged 8/31/07 Belle? That's my car Alizée? That's my avatar Me? Forty something male skydriver

08-24-2008, 05:46 PM	#19 (permalink)
lbsky Senior Member Join Date: Nov 2006 Location: Illinois Posts: 246 My Photos: (0)	problem is too much weight tires may be and issue, but the damn thing is too heavy. Same with the new Camaro, the damn thing weighs almost 3800lbs.

08-26-2008, 05:13 PM	#21 (permalink)
LeadSled1 Member Join Date: May 2008 Posts: 46 My Photos: (0)	The RSAs aren't that bad and are not the reason the car is running that slow. Look at the trap speed it is getting, only 100 mph for 375 hp is pretty pathetic.