Post your 12 second combos

[cjd1963]

The two shade trees were calling my name more than the social distancing...haha!

 

[440marv]

1964 Sport Fury
1974 440 .030 over
cast crank,trw forged pistons
Edelbrock heads,84cc
Hughes cam 505/515 lift 223/230 deg @ .050
full manual 727 w/2500 converter
3.91 locker
750 race demon/performer rpm intake
Hedman headers/full 3 inch exhaust
Run with full exhaust,front and rear sway bars attached
as driven on the street.
Best time 12.12 @110 ,1.76 60 ft

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[440marv]

Which trw pistons?

 

[furyus]

Which trw pistons?

It's been a long time since I built the engine. But, they are the low compression stock replacement pistons. 9 to 1. From what I've read these are actually lower than that. I had the heads cut .030, and the intake side of the head was cut to keep intake alignment.

 

[RemCharger]

Furyus - I ran the same #s bang on with my 64 Polara,, 440

 

[furyus]

Furyus - I ran the same #s bang on with my 64 Polara,, 440

very cool. I was very happy with the times I ran, but it was so close to the 11's. Now the engine is tired. Debating on whether to stroke it, or just rebuild with upgrades.

 

[RemCharger]

Bigger cam-bigger carb-bigger intake- bigger converter!!

 

[Angleiron2]

We raced this 440 engine in the past in a 69 dart. We want to build a 12 second car and we have a 66 Coronet 500 383, it’s stock with buckets seats now a 440 with Ross flat tops around 10.5 to 1,440 source h beam rods, steel crank, 525 lift comp cam I forget the duration right now,Mancini 1.6 ratio rockers on out of the box Trick Flow 240 heads, M1 manifold, 950 Hp Holley. Cheap dented headers, 10 inch turbo action med. converter. 8.8 inch Ford rear with 3.70 gears. Mono leafs and Caltracs not tubbed, stock 727 with a shift kit. This engine ran a best of 10.70 in a 3400 lb Dart with Indy EZ heads and 584 lift cam and Far better pro parts headers. We hope to make it very consistent, but not go faster than 11.50 the 12s will be fine.

 

[496 polara]

Sold the car last year and last track day was 2009
1970 Dodge Polara 4dr
4.36x4.15 496 c.i. rb block
Eagle 4.15 crank
sock rods
Keith Black hyper pistons (down in the hole)
Hughes solid cam
HEV3945BS
INT .582"
EXH .597
Hensley Racing ported 346 heads with hughes 1.6 rockers
Hughes deep port matched Edelbrock ch4b intake
Holley 750HP carb
1 3'4 hooker super comp headers
3" exhaust to Dr Gas x-pipe then full 2.5 exhaust with Dynomax Hemi Super Turbos
Tci street fighter 727 with 11" smr converter
8 3/4 with 3.55 gears and limited slip
275/60/15 nitto drag radials
12.54 @107

 

[440 Charger]

1966 B body est 3700 lbs as raced. P/S, bench seat, spare and jack.

Chassis:
SS springs for 3700 car.
Pinion snubber
4.30:1 gear (although I think 4.10's would be better)
9x28" slicks

Engine:
440 .030" over
KB 237 pistons @ .015" below deck.
OEM steel crank and LY rods
pocket ported 915 heads with 2.14" / 1.81" valves
CR CC's out to 10.1:1
MoPar .455" / 272 cam installed straight up
Intake is factory cast iron
Eddy 750 AFB jetted 4% richer in the secondaries. Primaries are factory calibration.
Hooker 5209 2" headers with TTI 3" system all the way out. Muffs are Flowmasters
Orange box electronic ignition
Holley mech fuel pump with OEM 5/16" line.

Tranny:
Stock rebuilt TF with TCI 11 Street fighter converter.

Car runs 12.80's @ 105 with the slicks and 4.30's and low 13's @ 109 with 3.55's and street tires. All runs are with full exhaust and air cleaner installed.

Arent 12s easy and all day?

 

[440 Charger]

Sold the car last year and last track day was 2009
1970 Dodge Polara 4dr
4.36x4.15 496 c.i. rb block
Eagle 4.15 crank
sock rods
Keith Black hyper pistons (down in the hole)
Hughes solid cam
HEV3945BS
INT .582"
EXH .597
Hensley Racing ported 346 heads with hughes 1.6 rockers
Hughes deep port matched Edelbrock ch4b intake
Holley 750HP carb
1 3'4 hooker super comp headers
3" exhaust to Dr Gas x-pipe then full 2.5 exhaust with Dynomax Hemi Super Turbos
Tci street fighter 727 with 11" smr converter
8 3/4 with 3.55 gears and limited slip
275/60/15 nitto drag radials
12.54 @107

Think you can beat a Hellcat? in the quarter?

 

[496 polara]

Not likely unless he was lazy on the tree and spun really bad. Not sure why you would pose the question.

 

[440 Charger]

Fair is fair lets take away traction away do all driver.

 

[496 polara]

Not a chance.Mid 12's aren't gonna cut it against any hellcat unless Helen Keller is driving.

 

[BSB67]

Arent 12s easy and all day?

Only to those who have not done it.

 

[440 Charger]

Not sure I will run 12.

 

[440 Charger]

Only to those who have not done it.

Very true then 11s and it just keeps going.

 

[440 Charger]

Low 12s high 11s were the most fun for a street driven daily.

 

[kjalltrac]

Changing the camshaft from a hydraulic comp cams xe284h to a hughes solid stl5054bs3-08,resulted in better et's.
Best with the comp cam
[email protected] 60' 1.74

Best with solid hughes cam
[email protected] 60' 1.68
Same track both runs and good traction.
Still feels slow after 5000rpm, thought this issue would be solved going to the solid cam, but it was not.
Next up is to swap the old mopar electronic dizzy for a msd pro billet. Hope this will fix the issue.

 

[33 IMP]

Changing the camshaft from a hydraulic comp cams xe284h to a hughes solid stl5054bs3-08,resulted in better et's.
Best with the comp cam
[email protected] 60' 1.74

Best with solid hughes cam
[email protected] 60' 1.68
Same track both runs and good traction.
Still feels slow after 5000rpm, thought this issue would be solved going to the solid cam, but it was not.
Next up is to swap the old mopar electronic dizzy for a msd pro billet. Hope this will fix the issue.

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Laying down at higher rpm, especially with a solid cam, is most often weak valve springs.