What is the right wheel horse power on stock 2003 lightning do some manufactures rate thier horse power at the fly wheel such as chevy. ???? not for sure i use to know these things i guess i forgot over the years. ???? thanks bros.

 

"Right wheel horse power"

If you mean rear wheel.........it should be around 355.

FYI.........all manufacturers rate their hp at the flywheel.

--Joe

 

So that to converts to 177.5 right wheel horse power (and 177.5 left wheel horse power).

 

OK i get it now 380 verses 177 divided by 380=very little horsepower at the wheels if you divided you fly wheel horsepower into rear wheel horsepower then you are losing a lot of horse power i think i will get me a srt-10 dodge v10 and sell my lightning with only 2600 miles on it dodge dealer says srt-10 will blow the lightning doors off he said he will run me with my mods aganist stock srt-10 title for title i have a 110 mph in 1/4 mile lightning/

 

I'm not really sure what you're asking....BUT my 2003 Lightning with just a catback exhaust put down 364.5 REARwhp and 431.9 REARwtq. Now taking into account the catback really didn't add suffient gains you're right about our trucks not having 380 at the flywheel...it's probably more like 415 or so.

 

uh, 380 hp is not false. Ford rated it at the flywheel.
dodge rates ALL of their vehicles at the flywheel just like EVERY other car company.

the lightnings lose 11%-12% of their horsepower through the drivetrain, that's better than most vehicles out there.



wtf kind of math is that? dodge math?

 

I think you need to stop doing so much of this If the dealer wants to run you with a stock SRT 10, do it. He has to figure out how to launch with a manual, and then shift without missing a gear. You don't have to worry about missing any gears. He'll loose. There have already been posts of SRT 10's running 13.5 1/4 mile times with good drivers. There are a number of L's doing that stock. WTF are you worried about. I'm really just giving you a rashon of sh*t, the L's a better choice.

 

WTF.............dude your math is very messed up.

In fact it is so messed up I don't think anyone on here knows what your trying to calculate to correct you.

--Joe

 

Well I think you should buy the Dodge....reading your posts makes my head hurt just like when I talk to most other Dodge owners...

 

http://www.viperalley.com/showflat.p...b/5/o//fpart/1

 

your math confuses me, but as long as you get it!

id say run the dealer with his srt-10, just to crush his ego...then expain how 380 horses are faster than 500, that should be interesting!

 

Think on this for a minute. HP is nice to talk about but it's torque that moves a heavy vehicle off the line and gets it to the quarter mile traps. Horsepower determines the elapsed speed you will have when you get there. The Lightning is rated at 450 ft-lbs of torque, or right about 10 lbs per 1 ft-lb of torque (say 4600 lbs weight). The SRT-10 weighs about 500 lbs more (say 5100 lbs)than the Lightning and puts out about 500 ft-lbs of torque. Guess what - they both have about the same weight to torque ratio! That's probably why we are seeing 13.3 to 13.6 sec Lightnings and 13.5 sec SRT-10s. The stock SRT-10 will probably make a little higher trap speed but who cares as long as the Lightning gets there just as quick. Additionally, any truck that is pulling 340 to 350 HP at the rear wheels is conservatively rated at 380HP. Sounds more like 400 to 420 HP to me. I wish someone had the opportunity to pull one out and put it on an engine dyno - it would be interesting.

 

First off tlfwatch, I don't think you have a clue about horsepower ratings, and should probably be careful who you get your info from (namely Dodge dealers). In fact, tell that dealer to shove it up his butt crack.

Who really gives a crap about stock vs. stock. Take $600, and throw a pulley, filter and chip on any lightning and you are instantly in the low 13's or high 12's. You've still only spent $33k and change, $12k less than the Dodge. Try to see what you can get for $600 with a Dodge. Probably a nice shiny plaque saying "You just spent way too much".

To all SRT-10's, bring it!!!

 

Are there any older hot rodders out there that used to drag race. I used to have access to some of this stuff but my ex-wife destroyed it. Hot Rod (and I'm sure other magazines) did reports on how to estimate your engines HP. It had to do with the weight of your vehicle and your trap speed. Trap speed vs weight gives an accurate estimate of HP, ET takes into account suspension and how your vehicle hooks up. Maybe Rob or Vinnie will know. I don't think our L's make 420 HP stock. JMO

 

I qualify as older, but maybe not an older drag racer. I did get some laughs at the strip in 1970 when my 383 Plymouth got matched up against a 1967 Hemi Charger. It wasn't a massacure but no matter how hard I stood on that throttle that Hemi just kept slowly motoring away from me. That was Horsepower. Above on this thread a SNCBoom writes of getting 364 rear wheel horsepower with only a catback (no HP gain supposedly with a catback). Elsewhere under a thread titled 02L Dyno Numbers the writer says he pulled 373 rear wheel HP with a catback and air intake. Now I don't know for sure if any of these guys are pulling our leg or not, but I sure as Hell know that no Ford Pickup transmission and 9 3/4 inch axle is so efficient that driveline losses are only 5 to 10%, or even 15%. Given that, and the HP necessary to pull a stock 4600 to 4700 lb. vehicle to 103 mph in the quarter, these trucks have got to be pulling over 400 HP at the flywheel.