panamajack Posted March 18, 2005 Share Posted March 18, 2005 Went from a stop twice. First time we both got out pretty good. Second gear his bumper was at my side mirror. Third gear his bumper is at my rear bumper. Second time I got a better luanch and same results. Third time he gets the launch on me so the results were reversed, except at the top of third I slooooowly start to pull on him. My has a pulley and air filter. His was completly stock. Both manual trans. After I get my ecutek and he gets his chipped we will go at it again. This was a 2002 model with the BI-turbo 2.7T. Link to comment Share on other sites More sharing options...
Driver72 Posted March 18, 2005 Share Posted March 18, 2005 Sounds about exactly right. Stock for stock they both run to 60 in mid 5's Both run the 1/4 in the 14.0 second range at 97-98 mph. Above that, and the TT V6 S4 should start to pull a bit. But since you had a LW pulley (which probably gives you about 10 hp), it's probably the reason you began to pull on him a bit. Link to comment Share on other sites More sharing options...
Deer Killer Posted March 18, 2005 Share Posted March 18, 2005 A pulley does not make horsepower. It decreases loss from increasing the pulley's angular momentum, which of course is direcly proportional to the rate of acceleration. Which means in 3rd it's less effective than in 1st and 2nd.. Link to comment Share on other sites More sharing options...
panamajack Posted March 19, 2005 Author Share Posted March 19, 2005 angular momentum? Could you please explain. Link to comment Share on other sites More sharing options...
Deer Killer Posted March 19, 2005 Share Posted March 19, 2005 angular momentum? Could you please explain. Force = mass x acceleration In this case force is negative torque. Reduce the mass, reduce the negative torque. Reduce the acceleration, reduce the negative torque. Therefore a dyno measuring engine output at a static rpm will always measure zero increase from any reduction in mass, since if acceleration is zero the force is zero. In an infinite amount of acceleration you will feel an infinite amount of negative torque. Better stated. 5th gear has less crank acceleration than 4th gear has less crank acceleration than 3rd gear has less crank acceleration than 2nd gear has less crank acceleration than 1st gear. If the reduced mass pulley did anything, it did it mostly in 1st and 2nd. http://theory.uwinnipeg.ca/physics/rot/node5.html http://theory.uwinnipeg.ca/physics/rot/node7.html Link to comment Share on other sites More sharing options...
Driver72 Posted March 19, 2005 Share Posted March 19, 2005 A pulley does not make horsepower. No it doesn't "make" horsepower, it frees it up. Like lightweight wheels and tires, but more effective. Link to comment Share on other sites More sharing options...
panamajack Posted March 19, 2005 Author Share Posted March 19, 2005 Thanks. Link to comment Share on other sites More sharing options...
deimos Posted March 20, 2005 Share Posted March 20, 2005 Nice run man... Link to comment Share on other sites More sharing options...
mmm def Posted March 21, 2005 Share Posted March 21, 2005 Awesome! Always wanted to know how the LGT Vs B5 S4 would be. Depending on which chip the S4 gets, he might pull a bit even on the AP LGT, my X-Chip on the S4 gave around 60 hp and 75 tq, was a monster. Nice run. Link to comment Share on other sites More sharing options...
Deer Killer Posted March 21, 2005 Share Posted March 21, 2005 X-Chip on the S4 gave around 60 hp and 75 tq, was a monster. Had any dental work? going to hear a familar sound Link to comment Share on other sites More sharing options...
mmm def Posted March 21, 2005 Share Posted March 21, 2005 Had any dental work? going to hear a familar sound ..Explains why I'm driving my LGT and not the S4 anymore. That car made me so paranoid, every single weird noise from the turbo, 1 day I had enough of the stress and sold it. I did have the tea kettle/drill sound when it was cold, wonder if they ever blew. I think it's about 4-5k to do the turbo job on that car, no thanks. Link to comment Share on other sites More sharing options...
awdG35killer Posted March 22, 2005 Share Posted March 22, 2005 man, i thought those were faster than that...must be all that weight. Link to comment Share on other sites More sharing options...
mmm def Posted March 22, 2005 Share Posted March 22, 2005 a properly driven stock S4 6speed sedan should be around 5.6 0-60, avant about 5.8. I think it's really a drivers race between the LGT and S4. The B6 S4 with the 340 Hp V8 is around 4.9-5.0 with a stick and I think 5.5 auto. Link to comment Share on other sites More sharing options...
deimos Posted March 22, 2005 Share Posted March 22, 2005 a properly driven stock S4 6speed sedan should be around 5.6 0-60, avant about 5.8. I think it's really a drivers race between the LGT and S4. The B6 S4 with the 340 Hp V8 is around 4.9-5.0 with a stick and I think 5.5 auto. Yeah yet if you read Driver72's stories vs. friends B6 S4s makes you wonder if LGT isnt faster than we all think... Link to comment Share on other sites More sharing options...
Driver72 Posted March 25, 2005 Share Posted March 25, 2005 My buddy with the auto 05 S4 and I will be doing another run or two soon. The last time we "ran" I had just over 700 miles on my car, he had just over 800. We are now fully broken in. As I've said from the get go, I do think our LGT's are capable of faster 0-60 times than what the 5.6 seconds the magazines have gotten. I've also pointed out that the car Car and Driver AND Road and Track used for their testing were the exact same test mule. It had over 5K miles on it when RT tested it. Those were probably 5K heavily abused journalist testing miles. And also both of these tests took place during the heat of summer. I think with a properly broken in car, in the right conditions with a great driver whose driven the car more than the couple days the auto mag testers had, you'd see 0-60 times of around 5.3-5.4 seconds and 1/4 mile times of 13.9's @ 98-99 mph When I raced the 05 manual S4 we ran probably darn close to 1/4 mile distances each time, and he didn't pull even with me until about 70ish mph and by mid to upper 90's he was a car length in front. And those cars run mid 13's at 103-105 mph. So high 13's at 98-99 mph for us would is completely reasonable to expect. Link to comment Share on other sites More sharing options...
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