Post your 12 second combos

[cdr]

First time posting on this site but have been scouring it for years while figuring out old blue...a work in progress!!!

1968 Coronet R/T full interior (bench)
.030 '69 440
Eddie RPM heads and intake
Mild hydraulic w/steel adjustables
Pro systems Double pumper 780ish
Eddie mech fuel pump
Chrome box no vacuum 36 total
1 3/4 headers 3" cut outs into full 2.5"
Built 727 w/ 4500 and Cheetah body
3.91"s with 275 drag radial(5600 trap)
Mopar stock replacement leafs stock snub
Gas shocks and sway bar out

Best last week [email protected] with 1.77 60

View attachment 825112

Looks like you have a passenger ?

 

[Cudadude2]

First time posting on this site but have been scouring it for years while figuring out old blue...a work in progress!!!

1968 Coronet R/T full interior (bench)
.030 '69 440
Eddie RPM heads and intake
Mild hydraulic w/steel adjustables
Pro systems Double pumper 780ish
Eddie mech fuel pump
Chrome box no vacuum 36 total
1 3/4 headers 3" cut outs into full 2.5"
Built 727 w/ 4500 and Cheetah body
3.91"s with 275 drag radial(5600 trap)
Mopar stock replacement leafs stock snub
Gas shocks and sway bar out

Best last week [email protected] with 1.77 60

View attachment 825112

Great car you have there. Still lots on the table. Keep at it and before you know it you’ll be in the 11’s

 

[69 GTX]

Good looking & running car Justin.

 

[JUSTIN HENKER]

Thanks I hope to get closer to the 12.20's...have to keep it streetable enough for a 1 hour drive to our track. Yes had a passenger in that shot. Was a private track rental for my company so I took my Pop's for a launch. Its hard to describe how it feels and he's half owner. At our track you can bring someone if you don't break 14.00.

 

[johnnyguitar]

Thanks I hope to get closer to the 12.20's...have to keep it streetable enough for a 1 hour drive to our track. Yes had a passenger in that shot. Was a private track rental for my company so I took my Pop's for a launch. Its hard to describe how it feels and he's half owner. At our track you can bring someone if you don't break 14.00.

Great looking 68 RT Justin! Betting that your Dad enjoyed his ride by the look of the wrinkled MTs and his helmet position. lol

 

[BSB67]

Very Nice.

 

[JUSTIN HENKER]

Thanks all. Hoping to get out on a cooler night next month and do some tuning. Needs more mph. The converter was supposed to be 3800...could be hurting its numbers a bit.
.

 

[kjalltrac]

Thanks all. Hoping to get out on a cooler night next month and do some tuning. Needs more mph. The converter was supposed to be 3800...could be hurting its numbers a bit.
.

View attachment 825700

If you look at my times a page ago, you'll find that I have low mph as well.

 

[JUSTIN HENKER]

If you look at my times a page ago, you'll find that I have low mph as well.

Yes we'd be a good race! Yours must put on a good starting line show with SS springs and 90/10's!

 

[kjalltrac]

Yes we'd be a good race! Yours must put on a good starting line show with SS springs and 90/10's!

No, not really, wish I had a better torque converter.
Do you want to share your cam specs?
Great looking car you've got

 

[JUSTIN HENKER]

No, not really, wish I had a better torque converter.
Do you want to share your cam specs?
Great looking car you've got

Sorry the engine builder couldn't remember the cam but its mild suspect 509 range. We got this car much how you see it in a trade for a 650hp small block 4 speed A body. It was a beutiful dart but to fussy on the street plus someone else really wanted it...this car is much more versatile. I do want to go solid stick roller rockers. I heard Hughes is good?

 

[Cudadude2]

A 12.008. I expect this to be my last update on the 12 second thread. Done at Lebanon Valley dragway, 1500 ft DA and a 1.79 60’ time.

Bill

 

[junebug]

1969 Sport Satellite 3825# with Driver- 1970 440 .030 Speed Pro 6 pk. Pistons zero deck ht.-10.5 compression- Stock Steel crank and LY rods-5209 Hooker Headers 2 1/2 exh.
545 lift comp hyd. 241-247 @ 50- Stealth Heads pocket ported Stock rockers and push rods- M1 open intake- Stock 850 Holley DP- 9.5 PTC conv. 2600 ft brake stall- B&M shift kit- 355 sure grip 8 3/4 -255-60-15 MT Drag Radials- 7.79 @ 88.7 in the 1/8- 12.22 @ 109 in the 1/4- 1.75 60 ft.- Trap RPM 5400

 

[Blake67GTX]

67 Plymouth GTX convertible

440 RB, 67 block, .060" over Race Tec forged, flat top pistons. Eagle rods. Forged steel, standard stroke crank. Balanced assy.

Indy SEZ aluminum heads, Indy supplied springs, retainers, etc. 2.19 intake 1.81 exhaust, 75cc. Mild blending of ports to clean up casting, basically OOTB heads w standard 440 port. 509 MP hydraulic cam. Comp Cams chromoly roller rockers, 1.5 ratio.

Edelbrock Torker 2, Pro Systems 950hp Holley, 76 pri 88 sec. K & N air filter, 2" Doug's headers w IMCA 6" collector mufflers. MSD 6al ign, distributor.

727 TF auto, turbo action RMVB, 3400 stall conv, footbrake, dana 60 4.10 gears.

MP ss leaf springs for 3800lb, Comp Eng shocks, 28 x 9 MT PBR slicks and MT fronts. Car is in full street trim, complete interior minus rear seat, no cage, frame is tied. All factory glass, all factory steel, convertible top still works. I run the gtx hood w faux dual scoops.

9/20/19 Edgewater Sports Park
60' 1.670
330 4.914
1/8 7.656 89.13mph
1000. 10.043
1/4. 12.072 110.87mph

I run 100 octane race fuel. About 38 deg advance. All my research pulled from this site.

Thanks,

Blake

 

[Blake67GTX]

Best et so far 12.07 at 110 mph

 

[moparcrazy]

67 Plymouth GTX convertible

440 RB, 67 block, .060" over Race Tec forged, flat top pistons. Eagle rods. Forged steel, standard stroke crank. Balanced assy.

Indy SEZ aluminum heads, Indy supplied springs, retainers, etc. 2.19 intake 1.81 exhaust, 75cc. Mild blending of ports to clean up casting, basically OOTB heads w standard 440 port. 509 MP hydraulic cam. Comp Cams chromoly roller rockers, 1.5 ratio.

Edelbrock Torker 2, Pro Systems 950hp Holley, 76 pri 88 sec. K & N air filter, 2" Doug's headers w IMCA 6" collector mufflers. MSD 6al ign, distributor.

727 TF auto, turbo action RMVB, 3400 stall conv, footbrake, dana 60 4.10 gears.

MP ss leaf springs for 3800lb, Comp Eng shocks, 28 x 9 MT PBR slicks and MT fronts. Car is in full street trim, complete interior minus rear seat, no cage, frame is tied. All factory glass, all factory steel, convertible top still works. I run the gtx hood w faux dual scoops.

9/20/19 Edgewater Sports Park
60' 1.670
330 4.914
1/8 7.656 89.13mph
1000. 10.043
1/4. 12.072 110.87mph

I run 100 octane race fuel. About 38 deg advance. All my research pulled from this site.

Thanks,

Blake

View attachment 891422 View attachment 891423

This combo should be mid to high 11 IMO, what tire are you running? How much compression

 

[HEMI-ITIS]

Have you tried less total timing? Is the car hooking?

 

[33 IMP]

@moparcrazy , Blake is already illegally fast for an Nhra track, unless he's got a rollbar. He said he has no cage, not sure what that means.

 

[Blake67GTX]

Hi guys, sorry for delay.

I'm running Mickey Thompson pro bracket radials 28 tall x 9 wide, 13-16 psi. It hooks good and does not lose traction at launch. The tires wrinkle and seem to stay glued. I have increased tire pressure to 18 psi and it did spin pretty good st the line. MT tech line told me 13-16psi for MT PBRs....I shift at 5500 rpm and go thru the lights at roughly 6200 rpm.

The car pulls strong thru the 1/8 th but beyond that it seems to lay down. It doesn't pull hard beyond the 1000 foot mark. Its not wimpy, just stops pulling. No misses or sputtering. Throttle response is excellent. The car does not have a cage as of yet. I'm still contemplating whether to install a cage on a real RS vert. I'm not worried about getting kicked out of track yet. I also think I should be mid to high 11s. I get 7-8 psi at fuel regulator and carb seems right on.

Do u guys think the 60 foot time reflects a 11 sec car? I think the cam is small at 509. I used to have 915 heads un ported and it ran 12.20-12.30s. Adding aluminum SEZs and roller rockers, it dropped to 12.07. But, I'm not overly thrilled at 12 00s either.

Currently, I have approximately 11.5 to 1 compression, give or take. I did not actually measure comp. I'm running 039" head gasket, about .010 in the hole at TDC, with 75cc chambers. Race Tec catalogue and tech info puts me at approximately 11.5 to 1 w/ .060 over flat tops.

-Blake

 

[Blake67GTX]

I have not tried less total timing. But I'll try anything.

-Blake