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sVt9seVencObra
01-13-2003, 05:07 PM
im planning alot of things for my cobra ...but i also wanna be fast as soon as possible ....these are some things i got planned tell me if i should go another way >? im also buy a set of kumo tieres 275-40 in rear and 255-40 in back, i travel up to school alot ...i attend a school in sarasota and live in miami...so i take about a 3 hour trip every 7 weeks or so...
1. chip
2.steeda stg.1 susp. (wont make me faster but i need a drop)
3.pulleys
4.3:73 gears (i plan to s/c in the future)
5. headers
6. cold air intake

i wanna be somewhere in the 12's n/a :thumbsup: tell me some input and see if my future plans are smart moves for a 12 sec runner ..thanxs:teleport: :starwars:

smashedheadcat
01-13-2003, 06:39 PM
Originally posted by sVt9seVencObra
im planning alot of things for my cobra ...but i also wanna be fast as soon as possible ....these are some things i got planned tell me if i should go another way >? im also buy a set of kumo tieres 275-40 in rear and 255-40 in back, i travel up to school alot ...i attend a school in sarasota and live in miami...so i take about a 3 hour trip every 7 weeks or so...
1. chip
2.steeda stg.1 susp. (wont make me faster but i need a drop)
3.pulleys
4.3:73 gears (i plan to s/c in the future)
5. headers
6. cold air intake

i wanna be somewhere in the 12's n/a :thumbsup: tell me some input and see if my future plans are smart moves for a 12 sec runner ..thanxs:teleport: :starwars:

This is what i'd do (in this order) for a 12 second n/a cobra. The 96-98 are a little behind (powerwise) than the 99+ cobras. You do have a live axle in your favor though. First thing, also the most bang for the buck, would be a set of 4.30's. 4.10's at the absolute minimum. The 3.73's will be a waste of money if you're planning on 12 second et's (n/a) without making up for it with serious power. Then, steeda pulleys, Hooker longtubes, off road H or X-pipe and the cat back system of your choice. Most of the cat backs offer similar numbers as far as peformance goes. Then, get youself an aftermarket mass air meter (PRO-M, C&L etc). Then, get yourself on the dyno and have a custom tune. I think with that, and maybe some drag radials, you'll be in the 12's in naturally aspirated form. A cold air intake wouldn't hurt either. I'd say, with all of the above, you'll retain everyday drivability and probably wouldn't see a decrease in MPG, and if you do, it'd be very minute:D.

tcrews
01-13-2003, 07:40 PM
Originally posted by sVt9seVencObra

1. chip
2.steeda stg.1 susp. (wont make me faster but i need a drop)
3.pulleys
4.3:73 gears (i plan to s/c in the future)
5. headers
6. cold air intake


First, I'd got with 255/45/17 up front instead of the 255/40/17...the profile just doesn't look right on the 255/40 tires. Also remember your rims are 17"x8" and the 275 tire is really a bit too large to fit properly on the rim (yes it can fit...but not optimumly). 255/45/17 all around would be a better fit and allow you to rotate the tires...allowing them to last longer.

now your points...

1. chip
Waste of money at this stage.....so save your money. You'll see zero to little gains.

2.steeda stg.1 susp. (wont make me faster but i need a drop)
If you just want a drop, some lowering springs are all that's needed. If you go too low (more than 1.5" you will need some caster/camber plates to correct the alignment). Lots of choices there....

3.pulleys
Planning a supercharger later??? Skip these, you'll need the stock ones on when you put the blower on so save your money. Gains are nice but still small. Skip 'em :)

4.3:73 gears (i plan to s/c in the future)
My personal opinion....total waste. Especially if you are trying for 12's NA. 4.10s at the minimum (still probably won't see 12's NA) and 4.30s would even be a better choice. Really want 12's NA...get 4.56s. I run 4.10s with a blower and lots of boost and drive this car everyday to work and such. Have even made 600+ mile trips with the blower and 4.10s...zero problems or worries.

5. headers
Longtubes will net you the most gains, mostly in the mid-range torque area... Will be a tough install but it'll definitely be worth it. Shortys are easier (and cheaper) to install but the gains will be definitely smaller and mostly in the upper rpms.

6. cold air intake
Planning on supercharging...skip this as well. You'll not be using it with the blower so why waste the money for at least very minimal gains.

Now....my suggestions if you want 12's NA....and the plan on adding a blower later...

Forget lowering the car, that'll hurt your launches and hurt your ET ability. Get a minimum of 4.30 gears, some drag-radials, and offroad exhaust pipe (H or X) with longtube headers and lighten the car as much as possible. There are plenty of people that have hit 12's with that.

These cars love to rev so don't 'fear the gear' :)

sVt9seVencObra
01-14-2003, 01:42 AM
i forgot to mention i put in a custom x-pipe no cats, and a pair of 40 series flows in rear...the place where im planning to tune my cObra :rolleyes: told me with a s/c 3:73's is the way to go ...both track and highway freindly gears:thumbsup:

tcrews
01-14-2003, 07:25 AM
Then that person doesn't know what he's talking about :)

...the place where im planning to tune my cObra told me with a s/c 3:73's is the way to go ...both track and highway freindly gears

You might want to look for another place to tune as well if that's the kind of advice they are giving you.........

JC
01-14-2003, 11:31 AM
Run away from the shop that told you to go with the 3.73's on a blown 4.6L Cobra.

At a minimum it should be at least 4.10's with 4.30's actually being even better with a 26 inch tire or 4.56's if you're running a 28" tire at the track...

Follow the good advise given here and you will save yourself a lot of $$$ on parts you'll either will not need or will be unhappy with.

Listen to Tom's advise !!!

blown98cobra
01-14-2003, 12:03 PM
I have to agree with the 4.10's on a Blown Cobra.....I have them and love them. It is my daily driver.

cobra96
01-14-2003, 12:57 PM
I have had 4'10's on my car since I have had it and would not think about going with anything else. I drive a hour to and from work everyday in trafic and am still able to get 18-22mpg, plus the benifit from the lower gears.

sVt9seVencObra
01-15-2003, 01:27 AM
thanx guys !!! what would i do with out the scmc??>:burnout:

Mystic_Cobra
01-15-2003, 08:37 AM
The only real reason to get 3.73 is if you are planning to run a lot of on-track events. My 3.73 gear allows me to use 4th gear up to about 135 mph or so (someone has the actual number-but I've only been to 135), without having to shift to 5th.

But these guys are right if you aren't going to spend all your weekends on track, like me. ;)

sVt9seVencObra
01-15-2003, 11:07 AM
see ive gotten really into touring cars:thumbsup: and i wann apush the limits of my cobra to do that....are in the road track right not 1/4 mile ?

Mystic_Cobra
01-15-2003, 11:23 AM
I think you're asking about road course vs drag strip. Yes, I mean road course. Drag and street use will take more gear, as these guys have suggested.
when I get a full-blown track car and this Mystic becomes only a street car, I may pull the 3.73 and go up to a "bigger" gear.