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Auto vs Manual 1/8 Mile Video (HD)

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Old Oct 3, 2009 | 12:47 AM
  #76  
Hammerhead i-Eagle Thrust's Avatar
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From: Upstate New York
Originally Posted by DaveB
My 03 5AT sedan ran a 14.32@98mph with a z-tube and in near sea level like conditions. With the MD 5/16 spacer, it did 14.35@99.87mph in 1,500' air. That 14.35@99.87mph would equate to high 14.1@101mph in sea level air. At KCIR (my track), I'm typically .3 and 2mph off that the 6MT 03-06 350Zs are running. They always out 60' foot me and walk me slightly above 60mph.

I think you're grossly overestimating how much quicker the 6MT is. It only makes about 10whp/10wtq more than the 5AT and the slightly deeper gearing isn't really an advantage in the 1/4mph. From 100mph+, the 6MT will walk away. I won't deny that. However, in a 1/4 mile race against a 6MT sedan or coupe with the same mods as myself, I'd bet I'd win over half the time.
.2-.4 is GROSSLY overestimating?

race some 6MT's with the same mods as you and post some vids
 
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Old Oct 3, 2009 | 12:48 AM
  #77  
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Originally Posted by 00gts6speed
its not massive but its significant, of course autos are more consistent, i said that already. also those cars were bone stock, yours isn't and 101.23 is an awfully high trap compared to other autos, perhaps your track was correcting itself...lol

more vids
http://www.youtube.com/watch?v=tfrPTpB4mqc
http://www.youtube.com/watch?v=_WxLxTyD4LE&NR=1

and if u went from a roll it wouldn't be that close

just look here

http://www.dragtimes.com/results.php...=10&carmake=21

there is a range, you can't compare the autos at the top of the range to the manuals with bad drivers. seems like 6 speed traps range from 97 to 101 and autos range from 93 to 97(not all tracks measure the trap speed in exactly the same spot so you need to weed out the extremes)

Your videos prove nothing, especially the 2nd 1/4 mile race video. Clearly the coupe 6MT cuts a better light, giving it a huge jump. The other coupe bogs his launch. We need to see slips that factor in both reaction time and 60'. I've beat MANY quicker cars at the strip only because I outreacted them and out 60'd them. The board said they ran a quicker time, but I got to the finish first. In a street race, it would have appeared I had the faster car, which it isn't.

As for trap speed measuring, you're wrong. In the US, trap speed is an average of your speed thru two boxes spaced 66' a part at the end of the strip. Magazines and G-tech type devices record ending 1/4 speed, therefore it will be fractionally higher (about 1mph to 2mph higher, depending on acceleration potential).
 
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Old Oct 3, 2009 | 12:50 AM
  #78  
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From: Kansas City
Originally Posted by 00gts6speed
.2-.4 is GROSSLY overestimating?

race some 6MT's with the same mods as you and post some vids
I don't street race. I can compare my ET/MPH against those that are posted on this site and correct times to standard conditions.
 
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Old Oct 3, 2009 | 01:00 AM
  #79  
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no you can't as per OCG35's post
 
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Old Oct 3, 2009 | 02:00 AM
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From: Frederick, MD
Yes, you can.....you can generalize more easily if you have a slip and given DA conditions. 1500' DA is 1500' DA everywhere. The reason I mention the slip is the 60' and 330' in particular (along with all times really) can give you an indication of track prep and available traction.

Is it going to be an absolute apples to apples comparison.......no, but if the DA's are similar it should be close enough to compare. Just my .02.
 
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Old Oct 3, 2009 | 12:38 PM
  #81  
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Originally Posted by 03threefiftyz
Yes, you can.....you can generalize more easily if you have a slip and given DA conditions. 1500' DA is 1500' DA everywhere. The reason I mention the slip is the 60' and 330' in particular (along with all times really) can give you an indication of track prep and available traction.

Is it going to be an absolute apples to apples comparison.......no, but if the DA's are similar it should be close enough to compare. Just my .02.
Exactly. It levels the playing field a bit. Everytime I see a retardly fast ET/MPH, it is almost always followed by rediculously low DA, often times 1,000'+ below sea level. I've seen some DAs in the northeast at -3500 DA. That will make a car about .5 seconds and nearly 4mph faster than what you'd under sea level conditions.

When you see ET/MPHs that are significantly faster than average, consider the DA. It is rarely "good driving". There's just not that much skill there, auto or 6MT.
 
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Old Oct 3, 2009 | 12:42 PM
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From: Frederick, MD
I still haven't run under +1200' DA's here, but I am hopeful I can get a few days at the track at (-)500'-(-)1000' DA's here in Nov/Dec. I agree though......some of the Canadian guys are already getting -800' DA's......I'm jealous.
 
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Old Oct 3, 2009 | 05:29 PM
  #83  
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Originally Posted by 00gts6speed
a horrible track doesnt mean it doesnt give out generous times

every forum has a guy like you who ran a time faster then most other cars and goes around babbling about it.

there was a civic Si on clubrsx that ran 14.2@96 with just greddy evo and rsx's that ran 14.0@100 with just intake and exhaust...great for them but those times don't really mean much, just a fast track or a fluke run, I also saw a civic si run 15.7 because he sucked at driving

what wheels are you running?
I have gone between 14.2 and 14.4 at three different tracks in varying DA's. It's not a lucky run. Many autos can replicate similar times, but even auto drivers don't always know what they're doing. My point is to show people that more than 2-3 people can hit low 14's with relatively stock 5AT G35s.

I'm running stock Infiniti wheels. They are 16's though.

Originally Posted by 00gts6speed
um this thread started off with the two cars racing each other at the same track and that wasnt good enough for anybody, what else can I possibly use to argue the point? you are right comparing numbers from different tracks doesn't mean anything, however if you throw out the extremes and average them out you will start to see a trend, simple statistics. and im not a mag racer, this is just isn't much data to compare and honestly motor trend probably tested those two cars in the same spot and that is more accurate then comparing some random guy's times. If you look at the general trend the autos seem to be .2-.4 seconds and 2-3 mph slower just like every other manual vs auto comparison in the automotive world (aside from certain super torquey domestics that are faster in automatic and the genesis coupe for some reason)
Do you have any slips of the 6mt in your stable?

Are you modded?
 

Last edited by MM_G3520; Oct 3, 2009 at 05:36 PM.
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Old Oct 4, 2009 | 12:00 AM
  #84  
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nah only got it a month ago...only have a K&N drop in...ill probably run crappy times..idk

the track is about 110 miles from me so i don't go often although I am moving to upstate NY soon and i think there is an 1/8th somewhere around..i dont really care that much G's are slow

u still can't compare times from different tracks, they are not all the same even at the same elevation, nor are dynos

one time englishtown gave me a slip that said my near stock RSX pulled a 14.1@96 with a 1.7 60 ft(on stock tires...lol)
 
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Old Oct 4, 2009 | 12:26 AM
  #85  
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From: Frederick, MD
You lined up with your rear tires tripping the staging lights.....fail.

Density altitude makes tracks comparable......the 60's and 330's can indicate track prep.....it two slips have comparable times in these sectors then traction is similar (as is driving skill). Horsepower/Gearing takes over past the 330' mark. 6mt cars have the advantage in gearing. That being said......I know several autos that make 6mt guys look like fools.

Seeing as how you track often...I don't expect you too grasp the idea.
 
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Old Oct 4, 2009 | 12:35 AM
  #86  
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From: Upstate New York
ive been 5 times i think

i know all about correction, but if that is true, explain to my why my friend's MS3 ran 13.9-14.1@99-100 at raceway park in englishtown(178ft) and then a week later in roughly the same conditions with the same mods and roughly the same 60 ft times ran 13.6@103.5 at cecil county dragway(320ft)

there are some tracks that just give you better times, everyone knows cecil is a fast track and its most certainly not the only one

its hilarious how you guys with your automatic 14 second cars with 3 bolt ons and a 350z that has a bunch of **** done just to run a time that stock 370z could match are acting like you know so much about drag racing and don't even even realize that certain tracks (and dynos for that matter) just read higher (or lower)

my brother's crappy LS1 gto with a cam and LS6 heads should be able to beat EVERY NA G35, yet he doesn't give two ****s about what it runs and you guys with your autos are EXPERT drag racers because you are informing me (for the first time obviously) about density elevation correction...lol
 

Last edited by Hammerhead i-Eagle Thrust; Oct 4, 2009 at 12:43 AM.
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Old Oct 4, 2009 | 12:53 AM
  #87  
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From: Frederick, MD
I am WELL aware of Cecil..........it is a notoriously fast track. I haven't run there with the z, but I hope to hit 12.90's there in Dec when other tracks close in the area.

I don't have much done to my car................kinda.
 
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Old Oct 4, 2009 | 12:55 AM
  #88  
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From: Upstate New York
lol

well cecil is not the only fast track

i know my rsx trapped at 98.75 at etown and 99.5 at atco, although it was too cold for traction at etown, everything with summer tires was pulling 2.5-2.6 60 fts..also i messed with my tune a bit, but idk atco seems a bit faster or maybe just better prepped
 
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Old Oct 4, 2009 | 12:56 AM
  #89  
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From: Frederick, MD
Also, my car makes about 5-8whp LESS than a 370. The 370 also better gearing (3.7FD). The power band is also more oriented towards the peak (better for drag racing), which in conjunction with the higher redline and better gearing=faster than my car.............at the moment.
 
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Old Oct 4, 2009 | 12:58 AM
  #90  
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From: Frederick, MD
Englishtown is about on the same level as MIR........same with atco. They are all fast tracks. I have seen some crazy trap speeds coming from cecil for better than a decade. I hope to go 109 there, but I'll need -1000' DA's.
 
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