GTS 1/8 Mile Time 4.91 at 150.5

[Shelby3]

If a GTS goes 4.91 at 150.5 in the 1/8 mile, is there a formula to figure out what it would do in the quarter?

 

[syclone1157]

Wow!!! That is an awesome time. If that car is set up for running an 1/8 of a mile, (as in huge gears) it may not be as great of a 1/4 mile runner. I have heard some people say that a close guess is 1/8 mile time plus 60% of the same time. That would mean that this is a sub 8 second car!

 

[plumcrazy]

who's car and whats done to it ?

 

[V10SpeedLuvr]

If a GTS goes 4.91 at 150.5 in the 1/8 mile, is there a formula to figure out what it would do in the quarter?

1/8 * 2 = 1/4

So multiply everything by 2.

4.91 * 2 = 9.82
150.5 * 2 = 311

So there you have it, 9.82 @ 311mph!!

 

[Catwood]

No man can calculate that with accuracy.

If the GTS remained at exactly that speed (220 feet per second) then it would be a 7.91. (660 feet of track remaining.

I'd guess there remains some level of acceleration at the 1/8 mile so something less than 7.91?

Carl

 

[Shelby3]

Figure a 1.29 sixty foot, does that help any?

 

[Shelby3]

who's car and whats done to it ?

Figure an IRS at 3800lbs with the driver.

 

[2MANYTOYS]

I wonder who's car that was???

 

[kcobean]

If a GTS goes 4.91 at 150.5 in the 1/8 mile, is there a formula to figure out what it would do in the quarter?

1/8 * 2 = 1/4

So multiply everything by 2.

4.91 * 2 = 9.82
150.5 * 2 = 311

So there you have it, 9.82 @ 311mph!!

I don't think so....the car is going to cover the last 1/8th of a mile a lot faster than it did the first 1/8th, right?

Assuming perfectly linear acceleration, the mean speed of the first 1/8th mile would be 150.5/2=75.25 mph. The mean speed of the last 1/8th mile would be ((301-150.5)/2)+150.5=225.75 mph.

And is that some special Georgia math that lets 150.5 * 2 = 311?

 

[1TONY1]

If a GTS goes 4.91 at 150.5 in the 1/8 mile, is there a formula to figure out what it would do in the quarter?

I'm in for a 7.58 at 189

 

[Paolo Castellano]

If a GTS goes 4.91 at 150.5 in the 1/8 mile, is there a formula to figure out what it would do in the quarter?

I'm in for a 7.58 at 189

I'm with Tony but I like round #'s so I'll say 7.60 @ 190!

 

[1TONY1]

If a GTS goes 4.91 at 150.5 in the 1/8 mile, is there a formula to figure out what it would do in the quarter?

I'm in for a 7.58 at 189

I'm with Tony but I like round #'s so I'll say 7.60 @ 190!

You've been watching "The Price is Right" to much

 

[AMong]

4.90's is 7.60's - 7.50's ...

 

[BLEBYU]

according to NHRA's class index chart a 4.98 is a 7.83 and a 4.85 is 7.61
fwiw
Mike

 

[Shelby3]

Underground ran the numbers with an auto IRS while testing at an 1/8 mile track.

 

[2001 GTS]

Underground ran the numbers with an auto IRS while testing at an 1/8 mile track.

 

[utahviper]

What happened to my post???????????

 

[kwkshift]

The general rule of thumb is to take your 1/8 mile ET and multiply it by 1.5 to get your 1/4 mile time. Most cars will put on about 30 mph in the 2nd 1/8 mile, but when you start talking about some really high HP cars, that number can get into the mid 30's to low 40's.