FastBlackTA

iTrader: (7)

Ok, this is a question that's been on my mind for a while.

I would consider myself a pretty good driver. I'm pretty consistant as well....even on my stock hurst shifter lol. My times ET below seems to be decent for my trap and my 60'. I have gone 10.79 or something @ 127 or so as well on a similar 60' i think...its been a few months. Need to find my slips they are somewhere in my apartment.

My question is this- if you have a good, consistant 6 speed driver, and you get your car to trap 1 mph higher for then run, what gain in ET should you expect?

For example, if i am running consistant 10.75's at 127-128, and my car gained 1 mph, what would my ET change be?

Also, I have one more question:

If you have two cars, both of which have the SAME 60' and SAME trap speed, but one car is 300 or so lbs lighter than the other, will both cars show the same ET?

Thanks in advance,
Conrad

Colonel

.85 tenth is my guess.

The lighter car will have the quicker ET. It's MPH was limited a little more by wind resistance than was the heavier car...see, the lighter car had less power to the ground and comparatively did more of it's accelerating towards the beginning of the track when wind resistance was less. The heavier car fought weight more so than did the lighter car and obviously had more power to the ground to fight wind resistance with. It did less accelerating during the majority of the track. Comparatively, it did more accelerating at the end of the track where it's HP advantage better fought the wind resistance.

At the end of the track since acceleration is slow, weight is much less of an issue and wind resistance is more of an issue. Conversely, the slower the speed, the less wind resistance is an issue and the more fighting inertia is an issue since since acceleration is quicker.

Point being, you'd rather have the acceleration advantage at the begginning of the track, where most acceleration is done, rather than at the end of the track where acceleration is so hard.

I hope that made as much sense in writing as it did in my head!

Colonel

...But a simple way to say it is the lighter car spent more of the track at a faster MPH than did the heavier car.

FastBlackTA

iTrader: (7)

Thanks Colonel! That makes perfect sense. I was thinking the same thing but wanted to make sure I was right lol.

I am thinking the following, corrext me if I'm wrong:

My car is a full weight car. It is a loaded 2002 trans am with the only weight savings is ditching the back seats. The car has a 12 bolt, full cage, and subframe connectors.

Do you think that the exact same car but 300 lbs lighter could have seen a 10.5x or 10.6x et with me driving?

Thanks again,
Conrad

badass 2002 z28

iTrader: (5)

if the driving and 60ft was consistant I would say yes. The lighter car SHOULD et better

distortion_69

iTrader: (20)

and be less prone to break parts while doing it...

Colonel

"Do you think that the exact same car but 300 lbs lighter could have seen a 10.5x or 10.6x et with me driving?"

I replied to your PM on this but I'll say it here too. Take a 10.75 run, knock off 300 lbs, and you probably have yourself a 10.4 run...AT LEAST a low 10.5 run.

FastBlackTA

iTrader: (7)

Thanks Colonel...you da man!!!

I kinda wish that I would have held off installing the Noszle system on my car just to see how fast I could have run with some serious weight reduction. However, the noszle system should add at least 100+ hp over my current combo, and with a little weight reduction (would like to keep AC for the time being-still should be able to lose some seroius weight), this thing should really fly!

BigPlanTransAm

100 lbs? i dont know if you actually weighed it or are just guessing but my NXL weighed 22.5 lbs. packaging and all.

FastBlackTA

iTrader: (7)

100 hp