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base mini and mazda 3 line up,,  both front wheel drive on R compounds,, on concrete all the traction you want,,,  the mazda has the mini by .180 in the first 60 ft how much does he have the mini by 360 ft ???

If a train leaves Chicago traveling 55mph heading due East, and another leaves Jacksonville at 45mph heading due North, when will they meet?

There's now way to know with only that information.

 

-Chris 

 

mazda 2800 lb 160 hp at 6500 rpm, 150 ft lb torque at 4500 , 60 ft time 2.140,, ,,,,  mini 2400 lb 115 hp at 6000 rpm, 111 ft lb torque at 4500, 60 ft time 2.320,,,  i would think by having the 60 ft times the 360 ft times could be extrapolated or at least an educated guess, but this is way over my education level,,,  both cars headed north

 

harts:

mazda 2800 lb 160 hp at 6500 rpm, 150 ft lb torque at 4500 , 60 ft time 2.140,, ,,,,  mini 2400 lb 115 hp at 6000 rpm, 111 ft lb torque at 4500, 60 ft time 2.320,,,  i would think by having the 60 ft times the 360 ft times could be extrapolated or at least an educated guess, but this is way over my education level,,,  both cars headed north

 

time and distance plots can be calculated if one has a map of torque vs rpm,  + wheel diameter and gearing. Note that the shape of the torque and power curves, even on two identically rated engines, can have such different forms.   Was a gear change required by either car? multiple gear changes?  That will also affect the answer.  This question can't be answered from the information supplied.  Further, one wonders why it would even be asked. Was money placed on the answer?

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lamoureaux
BSP 2004 STi
Wichita, Ks

just trying to find an excuse besides my poor driving for the toledo pro, generaly at pro's after the first 60 ft their is a maneuver that requires you to get out of the gas at least a little, but at this one their was a lane change that didn't require this except SS and maybe AS  , so it was flat out to the turn around 450 ft,  if i was behind .180 at 60 ft it was probably a lot more than that by the time we got to the turn around, however their were other mini's that did a lot better than me, but that mazda sure did get up and go

harts:

generaly at pro's after the first 60 ft their is a maneuver that requires you to get out of the gas at least a little,

I'm not sure I've ever been to a pro where that's true.

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Bryan
2006 Chrysler Crossfire
DS #187
Yeah, seriously...A Chrysler

harts:

but at this one their was a lane change that didn't require this except SS and maybe AS  ,

 I did not have to lift in the left lane in a SS Z06.

 

 

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00' 328Ci
01' Tahoe LT
98' Camaro Z28 - dead
95' 325is - STX 182

60' is all about launch technique, and comparatively speaking, has very little to do with power. I find it amazing that an HS Mazda was running low 2.1 60' times. That's a solid tenth quicker then me and Eric in our DSP Integras! I think we have a fair bit more camber then an HS 3 though...

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Nate Whipple
NER
188/88 DSP ITR

the right lane had 1.5 ft more offset than the left lane, i measured them

Mooobunnny:

harts:

but at this one their was a lane change that didn't require this except SS and maybe AS  ,

 I did not have to lift in the left lane in a SS Z06.

 

 

on concrete for H stock it's just put the peddle all the way down, pop the clutch, wait for it to hook and then let the torque take over, for the mini it still bogs, the mazda had 2.118, 2.125 , 2.125, 2.126, 2.140, 2.143,,

solo-x:

60' is all about launch technique, and comparatively speaking, has very little to do with power. I find it amazing that an HS Mazda was running low 2.1 60' times. That's a solid tenth quicker then me and Eric in our DSP Integras! I think we have a fair bit more camber then an HS 3 though...

harts:

the right lane had 1.5 ft more offset than the left lane, i measured them

 

That makes sense then. I almost spun when I tried to go through there full throttle. I thought, if I can do it on the left, surely I can do it on the right. I guess not. :-)

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00' 328Ci
01' Tahoe LT
98' Camaro Z28 - dead
95' 325is - STX 182

This question becomes even harder to answer in the context of this course.  Yes, most cars didn't have to lift to get through the offsets, but you are still doing a lot of turning, which slows the car down.  How much it slows down is a function of all sorts of things.  Also, 360 ft puts you already into the turn-in for the sweeper.  My car seemed to be slowed by about 1 second due to the offest when compared to straight line acceleration - getting 0-60mph times around 6 sec including the offset.   

Has anybody else noticed that the 60ft times look more like 50ft times on their datalogs?  If I calculate times to 50ft, I get 2.0's like the results showed.  If I go to 60ft, I'm seeing 2.3's, which are more typical of what I remember my car being capable of.

-Chris 

 

did someone mention launch technique? 

Tim had better 0-60's than I did and I have the same exact car but with an additional 100+ ft-lbs and 100+ hp.  Only on my last run on each side did I get 2.1's

 

then again, its much harder too hook up my car off the line than his with all that extra pedal, or so I will continue to tell myself

 

harts:

on concrete for H stock it's just put the peddle all the way down, pop the clutch, wait for it to hook and then let the torque take over, for the mini it still bogs, the mazda had 2.118, 2.125 , 2.125, 2.126, 2.140, 2.143,,

solo-x:

60' is all about launch technique, and comparatively speaking, has very little to do with power. I find it amazing that an HS Mazda was running low 2.1 60' times. That's a solid tenth quicker then me and Eric in our DSP Integras! I think we have a fair bit more camber then an HS 3 though...

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Scott
07 Mazdaspeed 3