Best 1/4 mile combo's???

[greg schroeder]

My car was slower with the 427R as delivered before I spent a pile of money to change a few things listed. I believe the Superformance exhaust is the most restrictive part that I change, but the Pro-Systems carb also made the car come alive.

The video pass in my signature is starting off idle with a 1.7 60ft time, 10.7 @130.6 mph. The track had a nice hook with the drag radials. Note the car is rock solid and straight with an effortless pass. I did that twice in a row and then went home. Keep in mind each .1 sec off 60ft is good for about .2 at the end, so there's no need to thrash the launch. A realistic slightly aggressive start 1.5 60ft time would put the car in the low 10s, but there's not much point in being aggressive. MPH remains about the same either way. On motor only, no power adders, I believe the combination I have is favorable performance wise to most big blocks given the small block is less weight and generally makes more power per cubic inch.

Superformance, stock suspension
Small block, Roush 427R single plane intake
Pro-Systems carb
2 inch primary headers
Buckshot Racefab side pipes
8AN fuel line
mechanical fuel pump
3.73 rear end
stronger half shafts
Detroit Tru-track in Ford 8.8 IRS
28 inch tall Mickey Thompson ET street drag radials
light weight flywheel

[FWB]

best time on street tires mufflers off was 11.01 at 128 and i killed the tires in first, 373 gears and a custom aode behind a 427 stroked with factory carbs,
i have a set of slicks for this year but im affraid ill be puking axles so i am leary
to use them.

[stretch]

i went 10.60 @127 mph with my 351w (383ci) and 5 speed on dragradials and got kicked off the track for going to fast. its still got a got bit left in it!!

[RICK LAKE]

tpiini Tom There are a bunch of guys in the 10.20 at 138.0's mph. Wayne Turpin with a 482 stroker. Keithcraft ran 10.20's with his Kirkham 527. Dave Sal ran 10.28 with a webered 482. Stacy P is the only stock body cobra to runin the 9.0's with a TP 433 ci. and a 150hp of nos at 9.87 at 139.0. He was running a 3.07 rearend stock. 4 spd trans. There are stretched race cars running in the 8.9 field. Double Vemons first Viper motor car was in the 10.0's. Short wheel base makes it hard for cobras to run the 1/4 mile. You also have that sail on the car too( windshield). There was to be a guy last year with a cobra to run 9.0's but breaking a timing chain stopped that. Just A6 on CC here has run in the low 10.30-10.40s with a V6 chevy power cobra. The problem is not big block or small block, it's hooking to the track and going. There have also been 4 spd, 5spd, 6 spd and automatics running the 10's. IMO if you get a soft-loc clutch assembly for your car and can dial it in, this is the best change for a 9.0 second run. I have run 12.5 in the 1/4 mile with 3.31 gears, 452 9.2 compression motor with a small camshaft, and come out of the hole at 1,300 rpms. Tires are 335/35 17" pilots. This is the tuffest event on a drive train. The cobra was not designed with an IRS setup to drag race. Tom, If you are going to drag race your car alot, get a cobra with a 9" rearend and 4 link suspension setup. Use a small 9-10 wide slick. Put on a space suit too, I have seen many cobra lift the front wheels and sometimes hit the walls, and this happens FAST. Rick L. Ps there are cars that have run nines with STOCK looking bodies, no windshields, and power adders. I don't count them for a stock body cobra. The cars above are all street driven on the road, not race cars that look like a pro street car.

[stretch]

Originally Posted by RICK LAKE

tpiini Tom There are a bunch of guys in the 10.20 at 138.0's mph. Wayne Turpin with a 482 stroker. Keithcraft ran 10.20's with his Kirkham 527. Dave Sal ran 10.28 with a webered 482. Stacy P is the only stock body cobra to runin the 9.0's with a TP 433 ci. and a 150hp of nos at 9.87 at 139.0. He was running a 3.07 rearend stock. 4 spd trans. There are stretched race cars running in the 8.9 field. Double Vemons first Viper motor car was in the 10.0's. Short wheel base makes it hard for cobras to run the 1/4 mile. You also have that sail on the car too( windshield). There was to be a guy last year with a cobra to run 9.0's but breaking a timing chain stopped that. Just A6 on CC here has run in the low 10.30-10.40s with a V6 chevy power cobra. The problem is not big block or small block, it's hooking to the track and going. There have also been 4 spd, 5spd, 6 spd and automatics running the 10's. IMO if you get a soft-loc clutch assembly for your car and can dial it in, this is the best change for a 9.0 second run. I have run 12.5 in the 1/4 mile with 3.31 gears, 452 9.2 compression motor with a small camshaft, and come out of the hole at 1,300 rpms. Tires are 335/35 17" pilots. This is the tuffest event on a drive train. The cobra was not designed with an IRS setup to drag race. Tom, If you are going to drag race your car alot, get a cobra with a 9" rearend and 4 link suspension setup. Use a small 9-10 wide slick. Put on a space suit too, I have seen many cobra lift the front wheels and sometimes hit the walls, and this happens FAST. Rick L. Ps there are cars that have run nines with STOCK looking bodies, no windshields, and power adders. I don't count them for a stock body cobra. The cars above are all street driven on the road, not race cars that look like a pro street car.

i am changing my heads, cam, intake with the goal of going 9.90s all motor driven to the track

[colin mullaney]

I suppose my Cobra may be the fastest in the world. 7.96@170 mph. Street legal, tagged,and insured. Should improve a few tenths this year.