93 FD VRS 03 Cobra
 

My freind just bought an 03 Cobra that according to the dealer was dynoed at 460 rwhp, He was telling my g/f that he thinks he can take my Sinlge Turbo FD at 411 RWHP on race gas. I weighed my car awhile back at the track and it weighs 2700 lbs his weighs 4900 lbs what are the chances I can take him on low boost which is right at 330 RWHP.

from a dig or roll? dig is not a safe bet at all, but a roll would be an alright race but still sketchy. why would you want to race him on low though? just put that race fuel in there for a round and put him in his place for sure. (this should prolly be in the kills section...)

Thats more than likely what ill do. Can a mod move this to the kill section.

Uh, 03 Cobra's definitely dont weigh 4900lbs...

According to the GVW sticker in the door it does but who knows..lol

what you want is curb weight. GVW is with passengers etc etc.

from what i found.. curb weight is 3664 lbs. and:

2003 Ford Mustang Cobra SVT

0-60 4.5s
1/4 mile 12.9

Stock '03 Cobras were/are 390 HP at about 3660 lbs. So, is this one modded? If not, I'd call BS on the 460 rwhp.

gvw = all passengers + gas + luggage or some such.

/\ lol my browser suks lost by 1 min.......

gross vehicle weight IIRC is a full tank tank of gas, one passenger and 50lbs of luggage

cool so it looks like I had better use the race gas.. lol i do know it has an underdrive pulley on the supercharger and a k&n fipk II cold air intake. well it will be fun anyway..lol :69:

Race him from a roll, and make sure you have the race fuel that way you should easily win.

what turbo are you running and is your motor ported...in other words I'm wondering why you need race gas for 411 rwhp.

using a hp spreadsheet I noticed one needs roughly 10 rwhp for every 100 lbs

so your wt. at 2,700 lbs with 411 rwhp and his car weighing 3,700 lbs would need 511 rwhp to remain even

not addressing tq or gearing

FWIW i had 330whp in my TII and was pretty much even with a stock 03 cobra

GVWR (gross vehicle weight rating) is the maximum allowable total weight of the vehicle loaded to capacity, including fuel, all passengers, cargo, any extra aftermarket parts, and the tongue weight of any towed vehicle.

T78 with a 3mm street port

http://img142.imageshack.us/img142/7009/rx71za0.jpg

ha ha. Even if by some crazy chance that he did beat you on race fuel and high boost, just ride over to his gf and let her climb into that sexy thing. that is one clean bay. :bigok:

if you are on low boost @ 330 RWHP and if he is really at 460 RWHP. I don't think you can get him. That's 130 RWHP difference...

Why on low boost?

My honest opinion is that he got mistaken for having 460 RWHP maybe 460 to the flywheel,which would be around 400RWHP maybe, i havent heard of too many mustangs putting down those kind of numbers. I dont think there is any reason why you shouldnt be able to take him on low boost 330 to the wheels and 2700 probably put you in the mid 12 and Id say it would be close but youll get him. One the freeway i know for a fact that mustangs anret geared for freeways youll take him top end. If you want overkill and security run it on race gas and put 3-5 car lengths on him.

You definitely don't need race gas to run 411 rwhp with that turbo, you should be able to make that on 15 psi and pump gas all day long.......nice lookin' car btw :)

a mate over here is pushing 400 rwhp or a t78@ 0.9 bar rom his rex. our pump gas is 97ron.

whats the octane over your side

Then you've been under a rock for the last 3 years. '03+ SVT Cobras can easily make that with just a chip and pulley change.

i believe i almost bought your car, was lookin at it maybe 1/2 year ago or so. very nice. and yeah you should be pulling higher numbers with that setup.

throw in the race fuel, do one run on low boost just to see...and then proceed to hand him his ass on a silver platter.

Should be a good race.

post a video!!!!!!

I will definatly post a video if it happens, Unfortunately I may have to put my FD up fpr sale do to being laid off. Im going to try to hold out as long as possable on selling but family first right.

Oh yea if you guys know anyone looking for a 2000 Honda CBR 929RR let me know.lol its on the block 2.

Im just going by what the shop said that rebuilt and tuned the car for me. Im an FD newbie and may have gotten alittle over my head with this one.. lol (meaning buying a modded car such as this one with very little knowledge about the specifics of the engine and such.

lmao... 4900lbs.

first of all, its gotta be lighter than that, my friends truck weighs 4900 lbs. last time i checked, cobras weight on average about 3850lbs (about ~4000 with driver). Your car weighs probably about 2850lbs with you in it.

if he has a 4000lb car that has 460WHP, then to keep up with him in a 2850lb car you would need 327.75WHP. (11.5% weight to hp ratio).

460 divided by 4000 is .115, which is equal to 11.5%
2850 multiplied by .115 is 327.75

If your car weighs 2850 (with driver) it should be a pretty even race.

(of course if you put it up to high boost, you would dust him) :D

That's an awful lot of generalization for two cars with totally different aerodynamics, weights, gearing, redlines, and power curves... not to mention the variable behind the steering wheel. :)

yes but it simplifies the whole thing. The main key elements of that matchup would be power and weight. :D

yea but to a car-vs-car perspective :D

Too much.

Just FYI, torque, gearing, and weight determine the rate of acceleration of a car. Not peak horsepower divided by weight.

I was basically giving a breakdown of horsepower to weight. i wasnt trying to be too elaborate. I know there are several other factors, but that one is just comparing horsepower and weight.

OZZMAN,

Where you on highway 9 south of norman around 3:45 today. I was w/ the family in my wifes speed6 instead of the 7, but I am pretty sure I saw that car. Hang on to it if you can.

Yea that was me, im going to try to hold on to it. I sold a 93 Z28 to a guy at Ft. Sill but he has missed 4 payments so im going to have to go and repo it. I sure would rather have the payments that would give me what I need to keep my 7.

Rotary Inspired

hey is this Brad? This is Jonathan with M/B 93 that stopped by that night. how did that rebuild go?

Ozzman

hey you should hit me up sometime so we can go cruisin. It's down right now with flooding problems but I am hoping to have it up and running by the time that I get back to OU.