I'd like to see what combos are running 12's. Conventional small block. Normally aspirated. No nitrous. Race weight. Might be interesting.

84' Camaro all motor
360 small block, 462cast# gm iron head
5.7 eagle rod scat crank
victor jr, 830 holley hp 2 inch wilson manifold tapered spacer
3045 race weight me in it 97 octane

75' block bored to 357ci
Canfield 195 heads
roller cam conversion
RPM Airgap, 750 Holley DP
~3500 race weight (Full interior, bone stock and beautiful)
12:1 compression so a mix of 97 and 110 while racing
12.77 @ 111.8

96 305 block .30 over
procomp alumuium heads
xr276 cam
edelbrock base, as&m runners,stock throttle body 28lb injectors
not sure of the weight but its a fully loaded formula with a full interior
9:1 compression
t-56 with pepboys clutch
12.91 @ 108

12.00 all day 113
suspension and rearend is where i have the money.

It looks like 350+hp and 4.10's will get it done.
Anyone use theirs as daily drivers?

My combo and times are in my sig.

Stock bore 350, race weight 3375 at 1200ft above sea level.

I will be in the high 11's with a new carb change.

What's your exhaust after the headers?

Dual 2.5" pipe with 2.5" Dynomax Bullets dumping before the rear.

No ground clearence issues?
Is it too loud for a daily driver?

LS1 swap with small cam

No, I havn't had any problems with ground clearance.

Check out a sound clip in my sig.

383
10.7:1
92 octane
comp cams 294S (.525/.525; 248/248 @ 0.050"; 110LSA)
edelbrock rpm air-gap
edelbrock 800cfm carb
hooker 1 3/4 long tubes
true 2.5" duals, car chemistry mufflers
3300lbs
t-5
9" with 3.89 gear
26x8.5 slick


12.76@ 107mph missing 4th gear shift..
1.83x 60ft

355
E-tec 200 heads SLP runners (modded)
Crower Cam 225-232 @ .050 113 .540 .560
1 3/4 shorty's
3.70 9 bolt
T-56
3420#
1.76 60ft. 12.80 @ 108 ......25 MPG hwy.

How much are the heads? do you have any after market roller rockers?

'82 Camaro..3450 lbs (guestimate)
10:1 355
195 AFR's / RPM Air Gap / Demon 750DP
Comp XE274
Hooker 2210 LT / Single 3" exhaust
T56
3.73
12.47@110 (1.86 60ft)
Could have gone 11.99-12.20 (would have hoped with tuning and a good clutch)

Heads and cam are sold. Looking for mid 11's this year.

Anyone with Vortec heads?

...and we have a winner!

ditto

My original 383 ran easy 12's and was very street friendly. I regulary drove this combo 40-50 miles to the local tracks and car shows. It ran in the 12.3 range on an average day and ran 12.02@113 in good weather.
10:1 compression
Dart Pro 1's 215cc unported
Hyd roller cam 225/230 .525/.525
750 DP carb
RPM Air Gap
Hedman 1 5/8 LT's
3.73 gear
3500 Stall
weight 3250, 3400 with me in the car
70/30 struts, stock springs
ET streets

My old setup....

10:1 350
Vortec heads unported / stock valves
Comp XE274H cam
RPM intake
750 Speed Demon with out of the box settings
Hooker LT's into single 3" blowmaster cat-back

27" tall slick, 3.92 gears and TH350 with a 3300 stall in my car went 12.52 @ 108mph with a 1.70 60ft on it's first pass. It ran better than I hoped for (I try not to disappoint myself on builds...) so I just left it as is and never bothered fine tuning it. Not sure how much my car weighs, probably 3350-3400lb with driver? Maybe heavier.

If my crappy car put together by myself with a crappy set of tools while drinking beer can run mid 12's anyone can do it

Dyno Don's running Etec heads--Edelbrock's version of Vortec.

I think I'll be hard pressed for 12's even with tuned LT's and more stall.
Looks like a hydraulic roller is in the works down the road.

A little more port volume though. My Vortecs have 170cc intakes.

Generally on most days i got low 13's but i have hit 12.95 and 12.99 with 3 runs 13.01-13.02

stock long block L98 (stock cam, stock heads, stock internals) with Stealth ram intake added, 1.6 rockers, underdrive pullies, lean tune, 2800 stall/3.42 gear, full suspension, full exhaust with shorty headers
3450 lbs or so with me in it that day


with the proper suspension setup with proper gear/converter you'll be fine to hit 12's on good weather days with low DA's

nice man.

X2 on vortec headed setups running 12's...lets hear em'

383cu in
vortec w/ stock valves .510 220@.050
vortec base w/ modified stock runners stock TB and injectors
stock gears , factory gm torque converter , bridgestone tires
1 3/4" slp shorties, stock exhaust with a cutout
factory weight 92 formula
12.85 -13.0's@106mph all year 16 mpg in town 22 on hwy

357
edel perf rpm head
edel perf rpm air gap intake, holley650 DP
LT 1"5/8
xe274

12.29 @110mph best
about 12.5@108-109 on normal days

Seb

my combo is all over the place and even in my vB garage.

12.53@105.something on a 1.65 60' time. it's been 106.08mph on a 12.56 pass.

i'm going out tomorrow to test. i put the water pump drive kit on it (easy tenth) and i went to a 29x9 hoosier over the 275/60/15 m/t drag radials i was running. i'm hoping the 22lbs loss of rotating mass i just had happen from the radials to slicks is gonna help, along with keeping me in the power band a little longer (29's vs. 28's) so maybe i won't be zinging through the traps at 6500rpms anymore (hehe, more like 6400 now with some power free'd up from the water pump drive)

we'll see...in theory, the car should run 12.2's with what i've done, and the weather is supposed to be excellent tomorrow...we'll see...i'm not counting chickins...

1991 GTA
383 Stroker with a converted LT1 intake from a '95 camaro(with the stock 48mm throttle body!)
Comp cam XFI 280 flat tappet cam, 1.6 roller rockers
1 5/8 hedman headers with dual 3" pipes with cut-outs
AFR 195 eliminatator aluminum heads(2.05/1.6)
Adjustable Fuel Pressure Regulator
Cold air intake, digital MSD 6+ ignition, blaster ss coil, msd plug wires, 34lb injectors
boxed lower control arms and relocation brackets,3:73 gears, gm 10 bolt rear end,
4speed auto(700r4), 3200 stall, trans-go shift kit, drag radial 26" tires

Best time = 12.35 @ 110, 1.78-60ft n/a

Hopefully I will get my car into the 12's. What do you guys think?

you should be there easily with that heads/cam/intake 350

[quote=LB9GTA;3671633]
1 5/8 hedman headers with dual 3" pipes with cut-outs

Cut outs.
Do you use a differant tune when the exhaust is uncorked?
Any difference in the performance between a full exhaust and the open headers?
Cold air intake.
What does your CAI consist off?

12.39@107.08mph on a 1.645 60' time, n/a 305

bone stock LT1 with a set of 1.6 rockers.
'97 z28 6 speed with lotsa suspension
3050 lbs without driver


went a best of 11.80@113.

Nitrous?

on motor he said

all motor. car may have gone 10's on the bottle. lmao!!

when i see some of those time...i think this year is tuning time i would like to see some 11s...still 1 month to wait...damn snow.

Seb

I wish my car was more efficient like some of the one's listed.

355
Stock 526 cast crank
PM rods
speed pro hyper pistons
10.3 compression
Iron Pro Topline 200cc heads
Vic. Jr. intake
holley 650DP with proform main body
cc306 cam 230/244 @.050 112lsa
weigh's 3,500 with me in it

Best pass last year was 12.55 @112.66 on a 1.88 60ft. I changed the cam and I'm putting ET streets on the new 9 inch so I have high hopes of going 11.99. Probably wishfull thinking but with the mph and soft 60ft. I think there is alot more left in it.

Seems to me you're lacking on the 60' too. I'm heavier (3750) with less cam (218 @ 050) and smaller heads (Vortec 170cc). With a 1000 rpm over stock stall (TCI Breakaway), 3.73 posi and 26" drag radials I get a best of 1.79 60'.
A tenth on the 60' can get you two tenths in ET.

running 12.50's mods in sig...

Here's a pic of my y-pipe with cut-outs.


I don't use a different tune with being uncorked, but I probably should. It definenatly helps! Especially the top end!

Here is my CAI. It is made out of plumbing pipe, it is only 3" and I will be getting a 4" cai this year.

12.3 on motor 3750lbs. 333rwhp. pump gas. driving it there. on bottle it goes 10.8.

not far off from my combo and my best time so far has only been 12.89 @ 107 but the S10 converter and slipping transmission didnt help the 1.97 short time.

what size shot? thats a good gain on the spray, i hope to do the same

thats a 175 shot. a 125 gave me a second and 10 mph.

I've posted this combo a million times, for more details do a search and you'll find the exact build... Anyway, my friend had a Vortec motor that ran 11.60's on motor in a 3500lb street driven car

Basically just a 10.8:1 400 with unported/stock valve Vortecs, super victor intake, Comp XS282, 3.42 gears, 4000 stall, 26" drag radial. Driven hundreds of miles a week on 93 octane pump gas. On a great day it'd run 11.60's and on a bad/typical day it'd run 11.70-11.80's. He sprayed it a few times with a 125 shot and it ran 10.80's @ 123mph. There was really no magic or trickery involved in this build, it was literally thrown together and run.... I'd love to one day recreate this motor and throw it into a 3000lb car

Here's my setup, It's run a best of 12.3 at 109 but hasn't been consistent because the posi went out when I got the new converter. It's got more in it, there's a bad bog right at launch right now(and the vac secondary carb).

1987 roller 350
TFS 195 heads
.030 over
10.4:1 compression
215/215@.05 .532/.532 (comp magnum 270hr with 1.6's)
RPM Air-Gap
Holley 600 vac. secondary
Headman longtubes with true duals
built 700r4
3500 stall

3.73 posi

That's as close a combination to mine that I've seen. And you're a second quicker.
Do you know your race weight?
What's your true duals setup?