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Old 06-22-2009, 12:17 AM   #11 (permalink)
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Quote:
Originally Posted by hyperyaris View Post
I would like to race my Yaris against a professional top-fuel just for a laugh. Did you know that top-fuel dragsters accelerate faster than F-16 fighter jets?
Did you know that a scale model of a Dodge Viper will accelerate faster than a full-size Dodge Viper on a downhill coast? Oh yes, it will win a coasting 1/4 mile.

(Yes, I knew that they accelerated faster than fighters.)

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Old 06-22-2009, 12:18 AM   #12 (permalink)
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You could start your Yaris approx 300 feet from the finish line. By the time you crossed it, the Top Fuel car would have his 'chute out.

There's something to be said for a 3.3 second 1/4 mile at over 300 MPH.
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Old 06-22-2009, 12:25 AM   #13 (permalink)
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LOL stock Yaris drag race versus modded Mustang LMAO...only bad thing is the horrible camera work, bu still funny

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Old 06-22-2009, 12:28 AM   #14 (permalink)
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My uncle has a first gen prius... I told him when the batteries die and he tries to sell it, to let me know... I'd sell the gear from it and turn it into something insane (read as "inefficient") to drive. LOL.
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Old 06-22-2009, 02:14 AM   #15 (permalink)
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Probably the most neglected modification in racing is to streamline the roll cage and any other tubes in the breeze.
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Old 06-22-2009, 03:43 AM   #16 (permalink)
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Drag racing... We're not discussing drag queens running in high heels, are we?
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e·co·mod·ding: the art of turning vehicles into what they should be

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Piwoslaw's Peugeot 307sw modding thread

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Old 06-22-2009, 04:15 AM   #17 (permalink)
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Some of us do try :-)

http://ecomodder.com/forum/showthrea...help-7546.html

Fastest time by a Top Fuel is 4.42 at 337mph (Tony Shumacher)

And yes the use power to run these times over aero mods. But the thing is that is overlooked is that the fuel Nitromethane will give more power when its under load...so in a way the 'drag' helps.

They still amaze me and I have been in the sport for 28 years.

Any advice welcome too!
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Old 06-22-2009, 11:57 AM   #18 (permalink)
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Don't pretty much all fuels provide more power under load? I thought that was a function of efficiency...

As far as aero-modding your car, I read about 3 posts in your other thread... I haven't looked at your car yet, but I realize that you don't want to change your appearance too drastically.

Not sure if it will pass Tech 'Spec, but you can fair back your roll-cage bars with extra material (which will add a little more weight) to gain some aero. Something like hard foam glued to the bars (which counts as a safety feature) and just taper it back so that it's holding to somewhat of an airfoil shape.

Smooth wheels, and a belly pan with a rear extension (past the back of the car) that helps to keep airflow from detaching and rotating wildly after leaving the underside of the car.

If there are any body panels on the car, make sure there aren't any protrustions from the body which are thicker than the boundary layer. Preferably, smooth out all the panels, but at least check for protrusions.

One consideration that many don't take into account nearly enough is weight loss.

Soichiro Honda, back in the first days of Honda Motor Co, used to walk the assembly lines looking for bolts that had too many threads sticking out. If he found one, he'd make the worker take it out, file the end down to an acceptable length, and then file a report so that the newest order of those bolts wouldn't be any longer than they needed to be.

Maybe, this is just splitting hairs... but no matter whether you're a billion dollar race team, or Joe, down the street, the same physics apply. The lighter car will be faster/quicker (all else equal) and the faster/quicker car wins.
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Old 06-22-2009, 11:58 AM   #19 (permalink)
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Quote:
Originally Posted by Piwoslaw View Post
Drag racing... We're not discussing drag queens running in high heels, are we?
I guess if that's where the topic goes, LOL... I like to keep my threads pretty open... I believe that if the discussion turns, we should let it turn as long as it's related to the original topic or a question there-in.
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Old 06-22-2009, 12:38 PM   #20 (permalink)
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A full grill block and 5" lip gave me about 2mph in the 1/4mile. No change in E.T. but there were other factors at work there. I'm hoping on going back in the fall with some more aero mods to see what change that makes. How does a 15.7 @ 89mph, and 54mpg, sound?

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