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Roll race question


Snowflake

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I prefer to dig race anyway. When you don't always have the fastest car in the race (and I know about having a slower car) the X factor is the driver. I'm willing to give up 20-30 WHP depending on the driver. Roll racing is fun, but the real skill is from a dig. Dyno Brian knows what I'm talking about :D

 

Mystic Cobra - Et 13.19 @ 103mph and 1.8x 60ft

GTP - Et 12.70 @ 107mph and 1.8x 60ft

 

His Cobra and my GTP would run damn near side by side from a 30 roll. From a 60 Roll we'd be close and he'd start to pull at around 95-100... From a dig however ;) Well, I'd put about a car on him then he'd gain a half a car back by the 1/4, then after that he'd start to gain on me again and eventually pass me.

 

Bottom line, Roll Racing is fun racing; Dig Racing is real racing.

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If you have 2 cars that trap at 105mph in the 1/4 mile and roll raced from 60-120 would both of those cars be right beside each other at 120mph because they trapped the same in the 1/4?

 

Lets say the cars were a new Mustang and a Trans Am...

 

If one train leaves from Chicago at 2:00 PM and another left from New York at 3:00 PM, both are traveling 50 mph... lol

 

Sounds like a mathmatical equation.

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If one train leaves from Chicago at 2:00 PM and another left from New York at 3:00 PM, both are traveling 50 mph... lol

 

Sounds like a mathmatical equation.[/QUOTE]

 

Hows this for some math....I posted this on another forum and this is what one guy came up with... My head explodedwhen I read it...

 

If you are behind by 2 car lengths at 115mph you are behind 2 car lengths regardless what you trap. In this case, the TBSS is going to severly suffer at high speeds far more than say the Corvette would. If you are wondering exactly how long 2 car lengths behind someone is @ 115mph (assuming both are going the same speed which if that was the case they would be going at a very similar rate of speed).

 

A Corvette is 179.7" or 14.975'

 

If going by 2 car lengths off of the measurement of the Corvette just for the sake of having something to go off of you would be 29.95' behind the winning car's front bumper.

 

So, to figure this out you would take 115mph and find out how many fph (feet per hour) that is which is 607,200 fph (5,280ft x 115mph). After this, you need to convert that fph to fps so we get 168.67fps (607,200fph/60minutes in a hour/60 seconds in a minute).

Now that we know that each car is moving roughly 168.67fps and that the losing car is 29.95ft behind the winning car. By taking 29.95ft/168.67fps we find that the losing car is .177 of a second behind the winning car.

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