60ft vs mph 1/8 mile

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Old Oct 8, 2025 | 02:17 PM
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87_Cutlass455's Avatar
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60ft vs mph 1/8 mile

Trap

Last edited by 87_Cutlass455; Oct 22, 2025 at 08:43 PM.
Old Oct 8, 2025 | 05:29 PM
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69CSHC's Avatar
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Around a 9.0 in the 1/8.

Here are idealized results for a 95 mph 1/4 mile.


And here are idealized results for a 2.0 60ft.

http://www.wallaceracing.com/Calculators.htm

Weight is not in play in this type of calculation.
Old Oct 8, 2025 | 05:47 PM
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If your trying to gauge performance based on weight, your ride is on par with an original 1987 Grand National.

Depending on options they weigh up to 3550 lbs curb.

Motor Trend saw 95.1 mph in the 1/4 mile, August 1987.

ET was 14.7 in the 1/4, so you can see the enormous difference between real world and a prepped track ideal.
Old Oct 8, 2025 | 06:50 PM
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Originally Posted by 87_Cutlass455
Anyone know what a 95 mph with 2.0 60ft is capable of in 1/8 mile 3550lbs?
My NA long bed 350 truck runs 7.04 @ 94.25 MPH in the 660 and 11.10s in the 1320.
660/95 MPH = 6.94 in the 660

Last edited by VORTECPRO; Oct 8, 2025 at 06:53 PM.
Old Oct 9, 2025 | 04:24 AM
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Originally Posted by 87_Cutlass455
Anyone know what a 95 mph with 2.0 60ft is capable of in 1/8 mile 3550lbs?
this is an odd question a 95 mph 1/8 but referencing a slow 60 ft time , when I ran 7.07 @95 in my Catalina earlier this year it was a 1.56 60 ft
Old Oct 9, 2025 | 07:35 AM
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I would think you would be in the 8's
One of my runs a couple of weeks ago on a no prep surface with traction challenges.
60 foot - 2.04
330- 5.56
660-8.45@86.68
3753lbs as raced.
car-3550
me - 153
rear ballast -50
Old Oct 9, 2025 | 07:38 AM
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Go buy a Draggy when they are on sale. Great data for the price. I had mine on at the track and its dead on both time and MPH.

Last edited by SteveDB; Oct 9, 2025 at 07:39 AM. Reason: grammer
Old Oct 9, 2025 | 08:06 AM
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I've gone 7.4s at 94 with 1.7x 60'. The car has gone 11.50s a bunch with awful 60' times. It'll trap 119-120 so in theory it should go 10.99. Its hard to launch a 4 speed car and I don't have a cage or an exotic rear suspension, so thats probably the best it'll do.

You're definitely making serious power to trap that speed in the 1/8. You're leaving half a second in the 60'. Don't take it the wrong way, so am I!
Old Oct 11, 2025 | 12:53 PM
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Originally Posted by 87_Cutlass455
I built the engine myself and that's what I was shooting for but with my 2000 stall low vacuum brakes running 2.0 60ft and 8.0s saw one 7.8 with a 1.9 60ft and thats about it (93-95 mph). What's your 60ft look like? I wonder if I'm also going to pickup mph once I get my 60ft down.
My 60 foot was slow because its a truck with lots of losses, 1.50 60. You definitely can pick up some MPH when get the car running on the front half of the track.
Old Oct 12, 2025 | 09:50 AM
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Originally Posted by 87_Cutlass455
Im trying to gauge what i should be running in my built 455 with new Edelbrock Gen 3 heads... I still don't have a stall fastest I've gone has been 95 mph in 1/8 with 60ft times of 2.0. Does better 60ft increase mph?
Oh I see, I thought you hit 95 in the 1/4.

Your 60 ft is horrendous. With the right stall, tires, shifts, track, prep, weather, etc, could be 1.58




And if you're wondering how accurate that calculator can be. It can be very accurate. My peak performance in my 87 442 was close item for item after about 200 passes. Time slip to calculator.

Are you track testing or using a gizmo ?
Old Oct 12, 2025 | 04:53 PM
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Originally Posted by 69CSHC
Oh I see, I thought you hit 95 in the 1/4.

Your 60 ft is horrendous. With the right stall, tires, shifts, track, prep, weather, etc, could be 1.58




And if you're wondering how accurate that calculator can be. It can be very accurate. My peak performance in my 87 442 was close item for item after about 200 passes. Time slip to calculator.

Are you track testing or using a gizmo ?
Again
660/95=6.94
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