1/8th - 1/4 mile Question

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BUDGIE

1/8th - 1/4 mile Question

Post by BUDGIE »

Odd question but if a car is running a 6 sec @ 112 1/8th what time will it run in the quarter? ........there again it's probably runnin 5.10 gears, but I'd fit a 4.10 gear if that where the case. .......... :scratch:
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Pete
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Post by Pete »

As you have rightly indicated you cannot really tell as it will run right out of revs.

What you really need is the rough BHP it makes and its weight; gives you much more to work with.....you can then substitute Tyre Heights and gear choices in the programmes that predict ET's and MPH..........
Pete Wiseman; Cambridge.

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Blue
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Post by Blue »

9.50 @138 using an online 1/8 to 1/4 mile calculator.
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Les Szabo

Post by Les Szabo »

Just elaborate on what Blue said.....an optimum chassied car weighing 3000lbs all in>32" tall slicks>4.56 gears>690hp should run.....

60 Foot E.T. : 1.32
1/8 Mile E.T. : 6.00
1/8 Mile Trap Speed : 113.37
1/4 Mile E.T. : 9.50
1/4 Mile Trap Speed : 141
1/4 Mile Trap RPM : 6,757
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Cannonball
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Re: 1/8th - 1/4 mile Question

Post by Cannonball »

BUDGIE wrote:Odd question but if a car is running a 6 sec @ 112 1/8th what time will it run in the quarter? ........there again it's probably runnin 5.10 gears, but I'd fit a 4.10 gear if that where the case. .......... :scratch:
my chally was a 1/8 mile car 5,38 gears it ran usa 5.52 at 126 best but most times 5,56 125 at 7,200 rpm,s so i took it shakey with the 5,38,s ran it up to 7,200 rpm,s and Bananarama! me 1/8 et 5.56 125 mint the bloke was not tellin porkies, he was a smashin guy by the way, anyway swapped out to 4.56 = 1/8 5.56-58,s at 124=125 quarter 8,91 151 well happy it ran a high 8 every meet no matter what but never bettered that 8.91 from its first time out, thats when i first met ya budge you were a tease even then,,, ;) :lol: :lol: :lol: :lol:
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OFTEN OUTNUMBERED NEVER OUTGUNNED,

HEY WHATS THE TOP END ON THAT SUPERSPORTS. UNLIMITED,

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Post by Cannonball »

Les Szabo wrote:Just elaborate on what Blue said.....an optimum chassied car weighing 3000lbs all in>32" tall slicks>4.56 gears>690hp should run.....

60 Foot E.T. : 1.32
1/8 Mile E.T. : 6.00
1/8 Mile Trap Speed : 113.37
1/4 Mile E.T. : 9.50
1/4 Mile Trap Speed : 141
1/4 Mile Trap RPM : 6,757
would have to be perfect for that many cars get good mph but lack in the trouser dept et,,,
www.dwatts80.fsnet.co.uk

WATTS RACING TRANSMISSIONS, CLOBBER THE COMPETITION ITS CLOBBERIN TIME

OFTEN OUTNUMBERED NEVER OUTGUNNED,

HEY WHATS THE TOP END ON THAT SUPERSPORTS. UNLIMITED,

I HAVE A NVQW

LIFE GOES PRETTY FAST, IF YOU DONT LOOK ROUND A WHILE YOU MAY JUST MISS IT,

THE PASS IS THE JUICE,

LOVED BY FEW,
HATED BY MANY
RESPECTED BY ALL
Les Szabo

Post by Les Szabo »

Cannonball wrote:
Les Szabo wrote:Just elaborate on what Blue said.....an optimum chassied car weighing 3000lbs all in>32" tall slicks>4.56 gears>690hp should run.....

60 Foot E.T. : 1.32
1/8 Mile E.T. : 6.00
1/8 Mile Trap Speed : 113.37
1/4 Mile E.T. : 9.50
1/4 Mile Trap Speed : 141
1/4 Mile Trap RPM : 6,757
would have to be perfect for that many cars get good mph but lack in the trouser dept et,,,
Absolutley Dunc :lol: ....we all know 1 car that does as good and even better on 60ft's sometimes than the Wallace calc says it should, and its on springs ;)
Last edited by Les Szabo on Sun Dec 14, 14 6:57 pm, edited 2 times in total.
BUDGIE

Post by BUDGIE »

Thanks chaps .......... :thumbright:
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Cannonball
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Post by Cannonball »

Les Szabo wrote:
Cannonball wrote:
Les Szabo wrote:Just elaborate on what Blue said.....an optimum chassied car weighing 3000lbs all in>32" tall slicks>4.56 gears>690hp should run.....

60 Foot E.T. : 1.32
1/8 Mile E.T. : 6.00
1/8 Mile Trap Speed : 113.37
1/4 Mile E.T. : 9.50
1/4 Mile Trap Speed : 141
1/4 Mile Trap RPM : 6,757
would have to be perfect for that many cars get good mph but lack in the trouser dept et,,,
Absolutley Dunc :lol: ....we all know 1 car that does as good and even better on 60ft's sometimes than the Wallace calc says it should, and its on springs ;)
Tiggs chally ??? Dave Bills superbird ???
www.dwatts80.fsnet.co.uk

WATTS RACING TRANSMISSIONS, CLOBBER THE COMPETITION ITS CLOBBERIN TIME

OFTEN OUTNUMBERED NEVER OUTGUNNED,

HEY WHATS THE TOP END ON THAT SUPERSPORTS. UNLIMITED,

I HAVE A NVQW

LIFE GOES PRETTY FAST, IF YOU DONT LOOK ROUND A WHILE YOU MAY JUST MISS IT,

THE PASS IS THE JUICE,

LOVED BY FEW,
HATED BY MANY
RESPECTED BY ALL
BUDGIE

Re: 1/8th - 1/4 mile Question

Post by BUDGIE »

Cannonball wrote:
BUDGIE wrote:Odd question but if a car is running a 6 sec @ 112 1/8th what time will it run in the quarter? ........there again it's probably runnin 5.10 gears, but I'd fit a 4.10 gear if that where the case. .......... :scratch:
my chally was a 1/8 mile car 5,38 gears it ran usa 5.52 at 126 best but most times 5,56 125 at 7,200 rpm,s so i took it shakey with the 5,38,s ran it up to 7,200 rpm,s and Bananarama! me 1/8 et 5.56 125 mint the bloke was not tellin porkies, he was a smashin guy by the way, anyway swapped out to 4.56 = 1/8 5.56-58,s at 124=125 quarter 8,91 151 well happy it ran a high 8 every meet no matter what but never bettered that 8.91 from its first time out, thats when i first met ya budge you were a tease even then,,, ;) :lol: :lol: :lol: :lol:


Dunc, was it runnin the Hemi or the wedge :?
Les Szabo

Post by Les Szabo »

Cannonball wrote:
Les Szabo wrote:
Cannonball wrote: would have to be perfect for that many cars get good mph but lack in the trouser dept et,,,
Absolutley Dunc :lol: ....we all know 1 car that does as good and even better on 60ft's sometimes than the Wallace calc says it should, and its on springs ;)
Tiggs chally ??? Dave Bills superbird ???

Don't know Tigs/Dave's 60fts....no its Mick, people don't seem to think about Micks Dart much but it gets my Vote :thumbright:
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Re: 1/8th - 1/4 mile Question

Post by Cannonball »

BUDGIE wrote:
Cannonball wrote:
BUDGIE wrote:Odd question but if a car is running a 6 sec @ 112 1/8th what time will it run in the quarter? ........there again it's probably runnin 5.10 gears, but I'd fit a 4.10 gear if that where the case. .......... :scratch:
my chally was a 1/8 mile car 5,38 gears it ran usa 5.52 at 126 best but most times 5,56 125 at 7,200 rpm,s so i took it shakey with the 5,38,s ran it up to 7,200 rpm,s and Bananarama! me 1/8 et 5.56 125 mint the bloke was not tellin porkies, he was a smashin guy by the way, anyway swapped out to 4.56 = 1/8 5.56-58,s at 124=125 quarter 8,91 151 well happy it ran a high 8 every meet no matter what but never bettered that 8.91 from its first time out, thats when i first met ya budge you were a tease even then,,, ;) :lol: :lol: :lol: :lol:


Dunc, was it runnin the Hemi or the wedge :?
it was the wedge with indy sr,s fitted mild cam was a very mild build but ran good no,s and zero maintenance,
www.dwatts80.fsnet.co.uk

WATTS RACING TRANSMISSIONS, CLOBBER THE COMPETITION ITS CLOBBERIN TIME

OFTEN OUTNUMBERED NEVER OUTGUNNED,

HEY WHATS THE TOP END ON THAT SUPERSPORTS. UNLIMITED,

I HAVE A NVQW

LIFE GOES PRETTY FAST, IF YOU DONT LOOK ROUND A WHILE YOU MAY JUST MISS IT,

THE PASS IS THE JUICE,

LOVED BY FEW,
HATED BY MANY
RESPECTED BY ALL
BUDGIE

Post by BUDGIE »

So if I fit 4.50s with 700hp and a lighter car I should do the same numbers right :?
Les Szabo

Post by Les Szabo »

2800lbs at the line, 32" tyre, 700hp, 4.50 gear
60 Foot E.T. : 1.29
1/8 Mile E.T. : 5.83
1/8 Mile Trap Speed : 116.50
1/4 Mile E.T. : 9.25
1/4 Mile Trap Speed : 145
1/4 Mile Trap RPM : 6853+slip

These are optimum figures not an absolute.
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