JAvenger007

iTrader: (9)

lookin for a good conversation starter here......

so i spotted this online:
http://www.edmunds.com/insideline/do...cleId=104572#2

a 600rwhp cobra. Its an official one built by Ford Racing Performance Parts. what struck my eye is the price tag for the parts: $8500. TOTAL!

the breakdown is on the site. i subtracted all the nonsense appearance options (wheels, seats, ect). its stock internals, even stock clutch. now go out and get yourself a $25K used cobra with 20K miles on it. thats almost 35K less than a ZO6

so do the internals on these bad boys hold up?

i know 600rwhp + ls1 = headache
whats the budget route that some of you guys are takin to build a high hp motor that wont bite the bullet? include your full build up.

(ps...cobra total = $33500
vs
maybe built 427 + 9" = $33500 ($20K for a nice 02 fbod)

PHiL2

video doesnt work

Schantin

iTrader: (6)

The #'s really aren't that impressive, to be honest. 4.7 to 60. 12.8 in the 1/4 mile @120. That say Ford didn't invest enough in this car.... This car needed another $2K invested in suspension (at least). For $8500 it looked to be heads, supercharger, cams, headers, cat-back, wheels, and brakes. Yes, I agree that's a lot of goodies for the $$. For $8500 you can add an STS to a Camaro, headers, wheels and brakes and pull faster times though. Heck, for $8500 you can beat these times N/A. And a Camaro new went for $5-10K less than the Cobra does now.

BTW, my dad added under $500 of mods to his 03 Cobra and is pulling faster times than this one.

Just my $0.02

ebear

They have Stock Internal cobras with more then 700hp Daily Driven.. they come stock with forged internals. and you can get cobras for bottom 20s, if they are in the 30's they usually aren't worth it. A pulley Swap cobra will put 450-ish to the wheels.

ebear

Cobra is way better bang for buck mods than LS1. they coulda got more than 600 HP with 8.5k

Azhigher

iTrader: (1)

Here's my take on it. Take the cost difference from a 03 cobra vs a 99 F-body, add it to the $8500 in parts, and you can grab a fully forged low comp motor, add a TTi race kit, and go nutz.

Or, if you wanted to to the N/A Route: Full exhaust, intake w/mani, heads, cam, fuel, big shot could probably do it.

Or, you could go with a 402 LS2, supporting mods + big shot would probably get you there too.

Just gotta remember that the article said 601 hp at the wheels...

Louie83

iTrader: (3)

A car that comes with FI stock is made to take boost. A car that comes NA stock is not built around FI.

I would hope that a Cobra's stock internals could yield more power with boost than an LS1's stock internals.

98Z28MASS

iTrader: (6)

Yea those times suck, they def need a bunch of suspension mods and a new rear with some slicks to take advantage of that power. I mean a 120mph trap speed is impressive but a 12.8 et isnt at all. Must be one hell of a fun car to whip around in. Also, its $8500 in parts, but did that include installation and dyno-tuning? I mean it was built by ford so the labor costs and dyno costs probably werent incorporated so for a normal person to have that stuff installed and dynoed it would cost much more than the $8500 listed. Sweet machine though, one Id love to have in my garage.

turbo

iTrader: (10)

Ill stuck with my poopra, I mean supra

JAvenger007

iTrader: (9)

dont forget to take into consideration the rear end on fbods. thats a $2K mod right there just to launch 600rwhp.

what mods?

the times in that article dont show anything. they stated that it needed slicks. so take that 12 sec 1/4 time with a grain of salt. its clearly a 10 sec car.

oohsoobad2

Most that extra power comes from the blower. IMO the FRPP heads are a waste, the stock 03-04 Cobra heads can make plenty of power. My buddies KB'd 03 makes 699 rwhp with blower cams but untouched heads. Also Im sure the Paul High Performance fuel system is ridculously expensive. Two SVT Focus pumps and the KB Boost-a-Pump have supported 700 rwhp.

distortion_69

iTrader: (20)

You can run faster than 12.7 with an a4 with a $400-$500 fuddle converter. lol. With a 150 wet shot of nitrous and boltons, 120mph traps should easily be achievable for less than $2k.

And if you want to get technical, that IRS is going to handle that 620rwhp just about as long as an f-body rearend with slicks on it. It really needs a solid axle conversion to handle that kind of power.. So you end up spending the same thing.

Clutch? It ain't gonna hold that long.. needs a clutch too to cut real 60's.

Peace
Josh

JAvenger007

iTrader: (9)

I dont think you need slicks to break the stock 10bolt when you have 600rwhp. ive heard the cobra's IRS holds well. Do alot of 03/04 guys swap to a solid rear?

ebear

There is 6-Speed IRS cars in the 9's, you are severly mis-informed. The rear is strong, it just has lots of wheel hop and sucks for launching.

ebear

I'm assuming the mods are

Pulley/Tune

Sparetire

When you get right to it, you can basicly just FI most cars, feed them enough fuel, and make all kinds of psychotic power. You might have to run them rich on some witches brew from VP and a huge intercooler, but you can do it. Its very much like nitrous. Have fun identifing driveline parts/mastering the 4 hour clutch job. Im pretty new to LS1s, but I'm sure you could get a stock LS1 to 500 wheel on a turbo system basic boltons given a good fuel setup and intercooling.

BTW, Corky Bell's "Maximum Boost" contains a great explanation of why you can get awesome power from a stock longblock via FI without blowing it up. Its in chapter two or so. Basicly, high revs and high temps kill engines more than high power. This is due to the fact that more power with FI is generally going to result in higher compressive loads on the rods/pistons. Compressive loads have to be re-dang-diculus to break most modern internals, forged or not. High revs introduce high tensile loads. Tensile loads kill things due to metal fatigue. Temp is pretty self explanatory. So controll the heat and the mix, and have fun.

distortion_69

iTrader: (20)

What I'm saying is.. the car doesn't have the supporting mods.. hence the 12.7 @ 120mph. Whether it be tires, severe wheelhop from a much needed suspension modification.. or whatever. FWIW: I know a local person on svtforums.com that has broken 2 IRS rears on drag radials at the track. Wheel hop kills them fast.

If you give me $8500, I'll make my car make 620rwhp. That is a guarantee. Both cars are equally capable, if not more capable on the fbody side due to weight. Just depends on how you spend your money. With budget forged pistons and rods out now where you can order the set for around $700 (probes, scat).. with boost you could easily make a reliable 620rwhp with just about any method you like. The 6 speed is up for the task.

Peace,
Josh

caseypayne69

Thats video is probably given off false info. I've seen stock 04 cobra's pull 12.6 qtr's at best. And the 4.7 0-60 is a stock figure. These cars are underated too. They have more in the line of 420-430 hp. They dyno from 360 rwhp to 380 rwhp. And with a simple K/N and tune you can put down 400rwhp.

Only a rare few change over to solid rear axle. I'm a member at svtperformance.com and I almost never see that changed. I'm sure you can build up a LS1 to keep up with this motor, but the Cobra's motor has more potential to get bigger numbers. 4 valve, 8.5 compression, forged, 8k redline.