Moparts

Is this possible?

Posted By: 70ucode

Is this possible? - 02/09/14 06:08 PM

I was at mopars at Englishtown several moths ago and made a couple of passes. I red lighted on the first pass then on the second pass ran alone and my time slip showed 11.70 at 114mph. Car number and lane number are correct. I just finished this car so it was the first time at the track. My car is a 70 cuda 4speed Dana with 3:54 gears. BF Goodrich T/A on 15x7 ralleys. Engine was rebuilt mostly stock 10.5-1 Pistons, Mr Six-Pac Cam, Good valve job, TTI exhaust with manifolds. On the engine dyno it produced 426hp@ 5400 and 523ft lbs TQ at 2300rpm. Is 11.70 possible with those specs? Seems off to me. Did I have a great run? Or is it more likely that there was a mistake. Love to hear you thoughts. I plan to try again at Muscle Palooza in spring. John
Posted By: BSB67

Re: Is this possible? - 02/09/14 06:20 PM

Post all of your run times, red light or not.

Give us for each run:

60' time
660' time
660 mph
1/4 mile et
1/4 mile mph.

for each.

What was the weather like on the day you ran?
Posted By: 70ucode

Re: Is this possible? - 02/09/14 06:38 PM

Ok. Will do. Unfortunatley, I only have two. The first one is all zeros and the run in question I have at work. I will post it tomorrow. John
Posted By: hemiiroc

Re: Is this possible? - 02/09/14 08:12 PM

Doesn't sound right,but cars seem to run unbelievable numbers in the northeast compared to here. Also 523ft/lb at 2300?
Posted By: cudabin

Re: Is this possible? - 02/10/14 01:51 AM

I guess it depends on the air that day, but unless you had a very good 60 foot from the BFG T/A's... It is tough to run 11.70's??

Bob K's 440/6pk 69 runner goes 12.10's to 12.20's. And that car is really sorted out.

I am interested to see the incrementals from the run.

Cheers,

Arnie
Posted By: XXHEMI

Re: Is this possible? - 02/10/14 03:09 AM

John

Unless your 60' was in the mid 1.60s which I doubt with BF G tires it does not seem possible.

Your MPH should have been close to 120 for that ET
Posted By: dvw

Re: Is this possible? - 02/10/14 03:23 AM


Quote:

I was at mopars at Englishtown several moths ago and made a couple of passes. I red lighted on the first pass then on the second pass ran alone and my time slip showed 11.70 at 114mph. Car number and lane number are correct. I just finished this car so it was the first time at the track. My car is a 70 cuda 4speed Dana with 3:54 gears. BF Goodrich T/A on 15x7 ralleys. Engine was rebuilt mostly stock 10.5-1 Pistons, Mr Six-Pac Cam, Good valve job, TTI exhaust with manifolds. On the engine dyno it produced 426hp@ 5400 and 523ft lbs TQ at 2300rpm. Is 11.70 possible with those specs? Seems off to me. Did I have a great run? Or is it more likely that there was a mistake. Love to hear you thoughts. I plan to try again at Muscle Palooza in spring. John



No,You would be hard pressed with those tires to get into the 12's.
My wifes 360 4 speed Challenger makes similar power numbers. With T/As and a 3.55 it's been 13.20@107. With slicks and a 4.30 it's been 12.50@110.
Doug
Posted By: GTX MATT

Re: Is this possible? - 02/10/14 07:25 AM

Hey John, I'll come over and take it for a ride and let you know
Posted By: dynamite

Re: Is this possible? - 02/10/14 10:29 PM

The Speed sounds right for that ET. My 56 runs a consistent 11.72 at 114 mph.. with a 1.60 60 ft... 3700 lbs w 3/55 gears...

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Posted By: 451Mopar

Re: Is this possible? - 02/11/14 06:49 AM

Sounds good. I have ran 11.70's with a bit more MPH (119), but my 60' times are not very good.
Posted By: StealthWedge67

Re: Is this possible? - 02/11/14 07:56 AM

ET sounds correct for the speed, for a car with bite. Don't see how you could get deep into the ll's at that speed on street tires, though. With Radial T/A's and 3.54 gears, I'd expect 11.70 to need nearly 120mph. By comparison, my car goes 11.80's @ 113, but thats on ET Street radials with 3.91's riding on Calvert suspension that lets me mash the floor right out of the hole. I typcially short time @ 1.63. For your combo to go 11.70's, if I'm guessing it at around 3650lbs with you in the seat, you would need to be knocking on the 500 hp door to get to 114.

I'm rooting for you, but something seems a little fishy (no pun intended). I admit that I'd have to see a backup slip to feel confident about that number. Only one thing to do, I guess....
Posted By: gregsdart

Re: Is this possible? - 02/11/14 08:07 AM

I don't see it as possible. The tires for one, won't hook up that well. As an example, I have an 06 GT mustang, Saleen blower with 7psi boost making about 480 at the crank. The weights would be close, your car to mine. The Mustang only pulled a 2.00 60 ft, went 12.42 at 115 mph. Most 7 psi blown mustangs like mine put out about 470 to 480 hp at the crank, 420 at the tires.
Posted By: GTX MATT

Re: Is this possible? - 02/12/14 02:04 AM

Hey John, I was thinking about this, and your trap speed is in line with the pure stock six pack cars, and you've got some light head work and bigger tires. I don't think it's totally impossible if you pulled off a decent 60 foot time. The pure stock guys usually run 4.10s but with your brutal torque at 2300 rpm it may not have minded the 3.54s much.
Posted By: BSB67

Re: Is this possible? - 02/12/14 03:25 AM

Quote:

Hey John, I was thinking about this, and your trap speed is in line with the pure stock six pack cars, and you've got some light head work and bigger tires. I don't think it's totally impossible if you pulled off a decent 60 foot time. The pure stock guys usually run 4.10s but with your brutal torque at 2300 rpm it may not have minded the 3.54s much.



Probably not a great comparison.
Posted By: BSB67

Re: Is this possible? - 02/12/14 03:41 AM

Along with that time slip details, I have a few other questions: 1) What does your car weigh. 2) Give us the date you were at the track. 3) Give the details of you 10.5:1 CR, (is it simply the 2355 piston or something more sophisticated than that?) and 4) was the 426 hp on the dyno with your exhaust manifolds, or headers?
Posted By: GTX MATT

Re: Is this possible? - 02/12/14 04:31 AM

Quote:

Quote:

Hey John, I was thinking about this, and your trap speed is in line with the pure stock six pack cars, and you've got some light head work and bigger tires. I don't think it's totally impossible if you pulled off a decent 60 foot time. The pure stock guys usually run 4.10s but with your brutal torque at 2300 rpm it may not have minded the 3.54s much.



Probably not a great comparison.



One might not think, but didn't you trap 108 with the 272/272, manifolds, six pack, and 2.25 inch pipes with 3.23s?

Hes running Bob Ks cam
Posted By: cudasteve68

Re: Is this possible? - 02/12/14 07:09 PM

I have a few time slips with incorrect numbers.....
One says I went 12.26 @ 303 MPH
One more says my 60' was 1.04 on a 10.51 pass. (The car would have put the rear bumber on the ground, or broke in half with a 60' like that)
I am guessing there is something wrong with the time slip......
Like said before need to see all the numbers to prove it.
If not that is one darn good running "warmed over" 440 street car!!!!
Posted By: BSB67

Re: Is this possible? - 02/12/14 08:20 PM

Quote:

Quote:

Quote:

Hey John, I was thinking about this, and your trap speed is in line with the pure stock six pack cars, and you've got some light head work and bigger tires. I don't think it's totally impossible if you pulled off a decent 60 foot time. The pure stock guys usually run 4.10s but with your brutal torque at 2300 rpm it may not have minded the 3.54s much.



Probably not a great comparison.



One might not think, but didn't you trap 108 with the 272/272, manifolds, six pack, and 2.25 inch pipes with 3.23s?

Hes running Bob Ks cam



Right.

My point was to whom the results should be compared. I just don't think the quickest of the PSMCDR A12 guys is a good comparison. And actually, I have not ruled out anything yet, although I am leaning in the same direction as most everyone else.

Depending on the answers to the questions I've asked, I could see the car trapping at 111 mph. And if the car has a true street tire and factory suspension it is really hard to get them to 60 ft much better than 2.0 sec. But that is a lot of guessing and assumptions on my part.
Posted By: dvw

Re: Is this possible? - 02/12/14 09:32 PM

Car has to weigh at least 3800 lbs. Do the math, 426 HP is not going to go 114@3800. At best 110-111. And I'll bet it's closer to 3900-4000lbs. Am I correct?
Doug
Posted By: GTX MATT

Re: Is this possible? - 02/12/14 10:30 PM

Quote:

Quote:

Quote:

Quote:

Hey John, I was thinking about this, and your trap speed is in line with the pure stock six pack cars, and you've got some light head work and bigger tires. I don't think it's totally impossible if you pulled off a decent 60 foot time. The pure stock guys usually run 4.10s but with your brutal torque at 2300 rpm it may not have minded the 3.54s much.



Probably not a great comparison.



One might not think, but didn't you trap 108 with the 272/272, manifolds, six pack, and 2.25 inch pipes with 3.23s?

Hes running Bob Ks cam



Right.

My point was to whom the results should be compared. I just don't think the quickest of the PSMCDR A12 guys is a good comparison. And actually, I have not ruled out anything yet, although I am leaning in the same direction as most everyone else.

Depending on the answers to the questions I've asked, I could see the car trapping at 111 mph. And if the car has a true street tire and factory suspension it is really hard to get them to 60 ft much better than 2.0 sec. But that is a lot of guessing and assumptions on my part.



Don't get me wrong, I don't think that it's likely or that would be easy, but I do think its possible. The Pro Tru Wisecos that John is running are 625 grams a peice, so they're fairly light. As I recall hes running 255s or 275s out back. Promax is reputable, and he has headwork that the pure stock guys don't have. Depending on how much bowl work was done they may flow 250-260 cfm or so. He is also running the Edelbrock intake, not the Chrysler cast iron intake.
Posted By: Von

Re: Is this possible? - 02/13/14 12:10 AM

[quote Depending on how much bowl work was done they may flow 250-260 cfm or so.



Are the heads 346s or 452s by chance? A basic bowl blend by somebody knowledgable will get a stock valve 346 in the 260 range.
Posted By: BSB67

Re: Is this possible? - 02/13/14 01:09 AM

Quote:


, and he has headwork that the pure stock guys don't have.



Posted By: BSB67

Re: Is this possible? - 02/13/14 01:18 AM

Quote:

Car has to weigh at least 3800 lbs. Do the math, 426 HP is not going to go [Email]114@3800.[/Email] At best 110-111. And I'll bet it's closer to 3900-4000lbs. Am I correct?
Doug



Agreed. I just don't know with certainty any specifics about the car.

It could weigh 3500 lbs and the track day could have been -2000 DA. Unlikely of course.
Posted By: dannysbee

Re: Is this possible? - 02/13/14 01:20 AM

Quote:

Quote:


, and he has headwork that the pure stock guys should not have.







There you go fix it for you.
Posted By: GTX MATT

Re: Is this possible? - 02/13/14 01:49 AM

Quote:

Quote:

Quote:


, and he has headwork that the pure stock guys should not have.







There you go fix it for you.



You do have a point Russ
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