I may make a pass eventually. I made a few somewhat spirited launches at the TX Mile but i don't think those would be indicative of performance on a prepped 1/4 mile track.

 

tuners sell you a power setup or another words a MPH setup. how fast you can take it down the track is up to you and the other variables involved.....such as tires, mounts, skills, expereince, track prep, DA etc etc.

from what i saw in that thread it looked like a bunch of rookies got together and had some fun, none of them broke 2.0 60 foots. anyone that drag races will tell you that the first few hundred feet are the most important part of the race and if you arent able to do well there you can not expect good E.Ts.

 

I think you missed it...the trap speed was way off as well. 128mph is nice...but not 600+whp nice.

Here's a similarly powered car (a little more whp, a little less wtq)

trap 137.56, ET 10.5, dyno 650whp/600wtq
http://www.dragtimes.com/Audi-S4-Timeslip-19409.html

That's what I'd be expecting, if not better, from this 5.7 second 60-130 car mentioned above.

Instead, here's a bunch of similar trap speeds to what he ran...all making 100+WHP less, and 170+ WTQ less.

trap 131mph, dyno less than 500whp/wtq
http://www.dragtimes.com/Audi-S4-Timeslip-15081.html

trap 127mph, dyno 520/480
http://www.dragtimes.com/Audi-S4-Timeslip-17355.html

trap 127mph, dyno 480/400
http://www.dragtimes.com/Audi-S4-Timeslip-15445.html

trap 123mph, dyno 467/455
http://www.dragtimes.com/Audi-S4-Timeslip-13452.html

http://www.dragtimes.com/Audi-S4-Timeslip-15081.html

 

60-130 is a matter of one or zero shifts and a nice surface. 1/4 mile is a whole race that involves more then just power.

i do agree that a 5sec 60-130 pass should pretty much guarantee a 10sec pass and trap speed in mid to high 130s at least.

 

Maybe I can help with this, I post on Audizine quite frequently. As you guys all know, dyno numbers can't be taken for ****. It should only be used as a personal measuring tool to see increases/decreases in power by tweaking one's setup. It should not be used to compare 2 cars from across North America. Instead, we have 60-130 times, trap speeds, and ETs for that.

Audi's are HEAVY cars. Few of their production cars were ever meant for speed. Thick heavy doors, trunks, and body panels don't help get that power that GURUMAN is making.

You can get a dyno to read whatever number you want and I'm sure that is a big part of why there is no correlation between the dyno and track numbers.

 

%90 of your statements I agree with.

% 10 nope. If you use a DYNO DYANAMICS in SHOOT OUT Mode, there is no way to trick/cheat/play.

Shoot out mode is a LOCKED MODE.

Also dyno is a tuning aid, thats it.

 

Didn't know this. Thanks for the correction.

Exactly, I believe dyno numbers shouldn't count for anything other than personal satisfaction as long as you have some sort of baseline.

 

You know what all those times tell me?

That trap speeds can vary by A LOT and it has to to do with driver skill.

When you have a car making 480whp that traps 127, and a car making 520whp trapping 127, and then a car making less than 500whp trapping 131, there is much more going on than just whp measurements.

I ran my car at the strip, making about 580/580, and ran a best(for me) of 12.78 @126!! (2.6x sixty foot! lol)
But,
When I rolled out from 50-135 against my buddy in his Supra, a car that consistently ran 134-137mph at the track, we were neck to neck!
I admit, I have no track experience, and spun to almost the 1/8th mile, so that WILL have a bearing on 1/4 mile traps.
If you're not getting any traction, the car will not accelerate to its' maximum potential, period.
I could care less about e.t.'s.

I would be willing to bet that guy in the Audi was not very experienced at 1/4 mile racing, which is a whole world unto itself.

 

True but you actually answered your own question.

Exactly.

A bad launch can easily vary the ET by a full second. Running out of track by excessive spinning can also lower trap speeds by 10mph in a high powered car.

60-130mph is in place for good reasons and notice the list includes a 1/4 mile section. But for many, it's a p.i.t.a., track prep etc. make it nearly impossible to hit the strip, and run a decent ET/mph.

http://www.examiner.com/autos-in-san...mile-drag-race

 

NO KIDDING!!!!!! my Pig is chuggling along just fine! when i get it to the track in a few weeks we will she how she fares! I'm im guess it will fare just fine after a pulled 2 very respected cars on the street a week ago..

 

Lemme know..I'm gonna go soon too...

 

Are they thicker than BMW or Mercedes? Is that their primary weight "problem" or is it their AWD layout?

 

It should also tell you that dyno variance can throw a wrench into the mix. Bottom line is high 120s is the domain of an approximately 500whp B5 S4. Not 630whp-650wtq.

Personally I hate the dyno. I'll never dyno my car unless it's free. I care about how my car accelerates on a paved surfaces, not on rollers. I've seen dyno results same car same day same dyno...and they vary by so much, and still don't reflect real world acceleration...it makes me ignore them altogether.

that story was pretty (2.6 sixty foot) but don't forget...his 60 foot was not 2.6.

The difference between him and you? You weren't running around claiming to be the fastest Vette in the world prior to that track performance. He is (as is his tuner) claiming to be the fastest Audi S4 in the world. Pretty funny stuff.

He didn't have a 2.6 second launch. He had a 2.0 launch. A good launch on his car would probably be 1.6-1.7. On an Audi (AWD) 3-4 tenths in the 60 foot is not doubled up to gain you 6-8 tenths of ET like the RWD guys often quote. It's more like 1:1 or 1.5:1. Even if we pretend it was and 1 full second off his 12.3 or whatever he ran...he's still WAY slower than he ought to be. Frankly he ought to be running mid 10s in his sleep with his mum driving...and threatening to push into 10.4 or so.

In any event, EPL and AMD have carved out a niche in the dyno friendly world, and in the 'FATS' times super-champion world. Until I start to see some of their cars running good 1/4 mile times I'll remain skeptical. ESPECIALLY when it involves a TIAL car.

 

I think he's getting a little carried away. The B5 S4 (Audi in question) weighs 3600 lbs stock. That's not all that heavy today. Modified exhaust and wheels etc and limited amount of fuel in the car, ditch the spare and toolkit and the car weighs in at about 3450.

quattro AWD adds about 200lbs on these cars. Not the end of the world.

For perspective:
a stock C63 weighs 3975 lbs
a stock 997 C4s or turbo weighs about 3450-3500lbs.

 

I hear you about the dyno thing, as sometimes many of us get caught up in the numbers at the wheels.
(and I think it might have been a 2.7x, but I am sure I threw that slip in the garbage!!)

But that is why, IMO, as a group here we like to see the 60-130 times, because we all trust that we are not going to cheat and fabricate results just to move up on the list.
It is what it is(I hate that statement, but it works!)

Drag racing, hell, I was never good at it, but some guys/gals are, and I personally would have loved to see how my car would have performed with a good tire and a good driver.

I believe the results that Tony(EPL) posted, and if the guy had an off day at the track, no biggie for me.
Perhaps he just wasn't "drivin' it like he stole it!"
His cars pretty consistently excel in the street realm of 60-130 times, based on what I've seen/heard, which makes a lot sense to many of us who primarily drive our cars on the street.

I think the cumulative effect of all this info is that we all get to learn more about what works and what doesn't, so overall, I don't get too worked up about any one result in particular.