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1/8 mile. Speed 78 mph. #811040
09/21/10 06:35 PM
09/21/10 06:35 PM
Joined: Jan 2003
Posts: 353
Chesterfield, MIch
C
Cuda67 Offline OP
super street
Cuda67  Offline OP
super street
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Joined: Jan 2003
Posts: 353
Chesterfield, MIch
Hi and thanks for any help.
A friend of mine has a 66 Coronet that according to him using a gps and it told him that at 1/8 mile he was going 78 mph. The car is a 440 with a 484/284 cam. 3.55 rear and a 750 holley with 9.5 or so compression. It has some kind of very cheap plastic and aluminum pistons. Any idea what it would do in a 1/4. Probably a hard question to answer, had to ask.
Also he wants to race my 67 Barracuda, and it has a 383, same cam and rear but smaller dia tires. Does have a 770 holley and 10.5 compression. I don't want to race him fearing the results will reall make him mad.
He keeps bugging me. Thanks again
Ray

Re: 1/8 mile. Speed 78 mph. [Re: Cuda67] #811041
09/21/10 06:52 PM
09/21/10 06:52 PM
Joined: Jan 2003
Posts: 32,934
Grand Prairie,Texas
stumpy Offline
I Win
stumpy  Offline
I Win

Joined: Jan 2003
Posts: 32,934
Grand Prairie,Texas
My 4400lb truck is doing 78 mph in the 1/8 at 8.98 et. Which translates to about a 14.00 1/4 mile. I don't know if this would be any example for his car.

Re: 1/8 mile. Speed 78 mph. [Re: stumpy] #811042
09/21/10 09:56 PM
09/21/10 09:56 PM
Joined: Oct 2004
Posts: 2,820
Connecticut
FurryStump Offline
master
FurryStump  Offline
master

Joined: Oct 2004
Posts: 2,820
Connecticut
Race him on a track, let the chips fall where they may. My 408 stroker in my 68 fastback runs 8.20 at 86.41 in the 1/8 and 12.74 at 108.52 in the 1/4, on a 26 inch street tire with a 3.23 gear, Losing isn't the end of the world there is ALWAYS someone faster out there.


best of 11.39 at 117 mph 1.60 60’. 68 340 S Barracuda Fastback F.A.S.T [IMG]http://i67.tinypic.com/2mnnnnt.jpg[/IMG]
Re: 1/8 mile. Speed 78 mph. [Re: Cuda67] #811043
09/21/10 10:49 PM
09/21/10 10:49 PM
Joined: Mar 2005
Posts: 2,060
Pendleton NY
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terzmo Offline
top fuel
terzmo  Offline
top fuel
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Joined: Mar 2005
Posts: 2,060
Pendleton NY
multiply the 1/8 time by 1.57

Re: 1/8 mile. Speed 78 mph. [Re: Cuda67] #811044
09/22/10 08:07 AM
09/22/10 08:07 AM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Hi and thanks for any help.
A friend of mine has a 66 Coronet that according to him using a gps and it told him that at 1/8 mile he was going 78 mph. The car is a 440 with a 484/284 cam. 3.55 rear and a 750 holley with 9.5 or so compression. It has some kind of very cheap plastic and aluminum pistons. Any idea what it would do in a 1/4. Probably a hard question to answer, had to ask.
Also he wants to race my 67 Barracuda, and it has a 383, same cam and rear but smaller dia tires. Does have a 770 holley and 10.5 compression. I don't want to race him fearing the results will reall make him mad.
He keeps bugging me. Thanks again
Ray




if he doesn't have a converter you should take him. Tell him if he wants his car to run yank that poo poo cam and get a cheap Summit 488 cam. He'll drop over a second off his et. Both of you should be runing at least a 3000 stall.


[IMG]http://i66.tinypic.com/pui5j.jpg[/IMG]
Coming soon!!!!
Re: 1/8 mile. Speed 78 mph. [Re: Cuda67] #811045
09/22/10 04:00 PM
09/22/10 04:00 PM
Joined: Jan 2003
Posts: 28,067
Irving, TX
feets Offline
Senior Management
feets  Offline
Senior Management

Joined: Jan 2003
Posts: 28,067
Irving, TX
The GPS is giving him an exact speed where the drag strip gives you an average speed over a distance. The GPS speed will be slightly higher at the 1/8 and 1/4 mile traps.

Something to keep in mind.


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
- Stu Harmon
Re: 1/8 mile. Speed 78 mph. [Re: terzmo] #811046
09/22/10 05:01 PM
09/22/10 05:01 PM
Joined: Jan 2008
Posts: 199
douglasville,ga
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ramrod Offline
member
ramrod  Offline
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Joined: Jan 2008
Posts: 199
douglasville,ga
Quote:

multiply the 1/8 time by 1.57




I plugged my numbers into this formula and it is surprisingly accurate....


"That Plymouth had a Hemi with a Torqueflite." -Driver
Re: 1/8 mile. Speed 78 mph. [Re: Mr.Yuck] #811047
09/22/10 07:41 PM
09/22/10 07:41 PM
Joined: Jan 2003
Posts: 353
Chesterfield, MIch
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Cuda67 Offline OP
super street
Cuda67  Offline OP
super street
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Joined: Jan 2003
Posts: 353
Chesterfield, MIch
Would the Summit 488 help my Cuda? I am sure I can take his car as they sit. He is going to the track this week-end providing it doesn't rain

Re: 1/8 mile. Speed 78 mph. [Re: Cuda67] #811048
09/22/10 08:34 PM
09/22/10 08:34 PM
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck Offline
Not enough dumb comments...yet
Mr.Yuck  Offline
Not enough dumb comments...yet

Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Quote:

Would the Summit 488 help my Cuda? I am sure I can take his car as they sit. He is going to the track this week-end providing it doesn't rain




depends on the combo. If you have a low compression (less than 9.5:1) car with less than a 3000k stall and 3.91's yes. The cam pulls great. I went from 14.19 to 13.38 with a swap alone. I had the mopar 484 9:1 440 w/ 906 heads, headers, CH4b intake and eddy 750. I swaped the cam for the 488 and that was it. Later I added fresh air, dropped me to 13.11 then a 750DP to 12.90. (67 coronet)







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