Mobile Dyno on hand... here are a few combos we are gonna put to the test Oct 19th

[AustinGriggs]

Muletown Mobile dyno has pledged their support for the #MoparVsBrandXstreetcarShowdown in Danville, AL. I'm going to strap my 383 in my Super Bee to it and hope for the best! Ill share some other combos I know are taking the rollers with the best info I remember about them, feel free to guess and debate the following. All are welcome and there will be plenty of time to put your car on the dyno and run down the 1/8th mile. If you want to make it out, arrive at Jakes Dragstrip 10am!

**69 Super Bee
383 bored .030 decked .020 Speedpro forged Pistons
915 heads mild port work 2.08/1.74 valves
Comp Hyd Roller XR274
Performer RPM, 750 Holley DP
727, 3.55
*Guess, 338 hp / 383 tq

(Friends cars.... not 100% on specifics)
**67 GTX
440 bored .030 TRW Forged
440source massaged with upgraded springs 2.14/1.81
Hyd Flat tappet Howards 720581-10
Torker II 950 Holley DP
727, 355
*Guess 373 hp / 434 tq

**70 Sport Satellite
440 .020 6pak replacements
440source, ported / upgraded springs 2.14/1.81
Hyd Flat Mopar Purple Shaft .509
Performer, 800 AVS Edlebrock
727, 355
**Guess 361 hp / 440 tq

**69 Coronet R/T
440 .150 down the hole flat tops
915 heads, ported, 2.14/1.81
Hyd Flat .480 Lunatti
Mopar M1, 800 AVS
833, 3.54
**Guess 333 hp / 412 tq

Really looking foward to getting all 4 of these cars in the same place along with many others for a day of racing and dyno tuning! If you want info on the race events feel free to ask or have a look at https://www.facebook.com/austinsmusclecarclinic/

 

[Stroker68]

Sweet! Gonna be interesting to see where they come in. Thanks man.

 

[AustinGriggs]

While I'm guessing... I might as well throw my 1/8th mile predictions out! I could be wildly off...but for the sake of argument here goes
** 69 Super Bee - 7.84 @ 87.7
** 67 GTX - 7.69 @ 89.2
** 70 Sport Satellite - 7.97 @ 88.3
** 69 Coronet R/T - 8.34 @ 84.1

2 weeks away.... Lets see how far off I am!

 

[Stroker68]

Liking it. Those numbers are on the ground so those are good estimates. Over 300 at the wheels is actually a lot of power for a street car.

 

[Ironbuilt]

Make sure that you have the camera handy, we are going to require videos and pictures.

 

[Stroker68]

While I'm guessing... I might as well throw my 1/8th mile predictions out! I could be wildly off...but for the sake of argument here goes
** 69 Super Bee - 7.84 @ 87.7
** 67 GTX - 7.69 @ 89.2
** 70 Sport Satellite - 7.97 @ 88.3
** 69 Coronet R/T - 8.34 @ 84.1

2 weeks away.... Lets see how far off I am!

Your in the 12s with some of those 1/8ths bro. Pretty quick.

 

[cdr]

69 Bee 270 WHP
67 gtx 285 WHP
70 sport 280 WHP
69 RT 270 WHP
Alot depends on the Brand of the Dyno, if its a Dyno Jet my #'s will be a little more.

 

[AustinGriggs]

It is a Dynocom Dyno so it should read even alittle higher than a DynoJet. Ill try to get my Super Bee on a different kind later to make a comparison. A friends Duster with a 360 .030 with ported magnum heads, .530ish lift Hyd Roller with a 904 and 3.21s made 317hp and 376tq on this very dyno.

 

[Budnicks]

should be interesting

 

[AustinGriggs]

I was wrong about my brothers Coronet R/T it has a Torker intake and he just swapped in some header to boot. Here it is on the first start up today. Should sound great after a trip to the exhaust shop!

 

[HEMI-ITIS]

Liking it. Those numbers are on the ground so those are good estimates. Over 300 at the wheels is actually a lot of power for a street car.

I'll bite,,,,,,what is a sreet car? When is a street car a race car driven in the street?
Forget my brick,think DRAGWEEK!

 

[Stroker68]

I'll bite,,,,,,what is a sreet car? When is a street car a race car driven in the street?
Forget my brick,think DRAGWEEK!

Oh man...looks like you've gotta race car that you drive on the street. Bitchin! Hard to define street car huh. Depends on what a guy is willing to put up with when it comes to manners and drivability I guess. Yeah.... dragweek.

 

[Hemirunner]

Oh man... the mobile ego buster comes out!! I think you’re on the optimistic side, but hope everyone does well and has fun!!

 

[33 IMP]

I am NOT saying your guy is, but there are "hero" dynos and dyno operators out there that give optimistic numbers, because customers are frequently unhappy when the numbers aren't as big as they would like.
Imho, the best dyno is an accurate weight,with driver, and the finish line mph. Traction varies, shifting mistakes are made, etc.,but mph is the best indicator of actual power.
Chassis dynos often have trouble getting accurate numbers on cars with auto trans and race converters , finish line stripes don't have that problem.
Try to get a good weight at the track if possible, then plug in numbers at Wallace calculators.

 

[AustinGriggs]

I am NOT saying your guy is, but there are "hero" dynos and dyno operators out there that give optimistic numbers, because customers are frequently unhappy when the numbers aren't as big as they would like.
Imho, the best dyno is an accurate weight,with driver, and the finish line mph. Traction varies, shifting mistakes are made, etc.,but mph is the best indicator of actual power.
Chassis dynos often have trouble getting accurate numbers on cars with auto trans and race converters , finish line stripes don't have that problem.
Try to get a good weight at the track if possible, then plug in numbers at Wallace calculators.

That’s the good part, this is gonna be done at the track on the dyno he has a scale system so, we should get some good data out of the experiment. Seeing as how we plan to run these down the 1/8th all day should get a good idea if nothing else... food for thought.

 

[AustinGriggs]

It's crunch time and all of these cars are fighting back.... charging problems started on 2 of them, starter killed over in my Super Bee, the Coronet went on its maiden voyage yesterday which came with a couple hiccups, the Sport Satellite converter was no where near enough, so that just got changed... one thing after another! But, we are all determined! The GTX is running like a top, as is a friend's comparable '73 Cuda, who just ran 7.60 @ 90mph... Saturday should be a blast and I hope some of you make the trip!

 

[AustinGriggs]

The day has come!

 

[cdr]

The day has come!

AWESOME !!!

 

[AustinGriggs]

My Super Bee ran 7.98 and made 340 horsepower on the dyno!

 

[cdr]

Thats REALLY good, 7.98 converts to about 12.7 1/4, COOL