Quote:
is there a big difference from GT to Cobra?
errrmmmm (let me clear my throat
)
GT Cobra
machine built motor hand built motor
2v SOHC 16valve 4v DOHC 32valve
iron block aluminum block
live axle independant rear
260hp 320hp
real world performance a newer 01 up GT is a handful for a stock LT1, the cars are that equal. The '01 Cobra is the first mustang that can run with the LS1 stock on stock. Real world times range from 13.6-13.2@103-105mph.
A '03 is identical to a '01 (couple appearance diffs) except it has a 4bolt main ironblock vs. the 6bolt main alum block. forged rods and pistons, 8.7:1or8cr vs 9.7:1or8cr, T56 vs 3650 5spd among other things. Strangely enough, a '01 with a 8psi vortech (only) will smoke a '03, albeit with no factory warrenty, but the future failures.
The differances between a 99 and a 01 are huge. Differant heads design/31 spline halfshafts vs 28, Tremac 3650 vs T45, better exhaust system, improved pcm (remember the 99 fiasco of the underpowered cobras?)
Right now the brick wall the '03's are facing is around 470rwhp. some of the better slips floating around are 11.44 @ 122.71 1.71 60ft on BFG's, typical mods are 2.80 Pulley,JohnnyLightning air kit and Chip, BBK longtubes and H-pipe,3" Flowmaster Cat back. The above time was ran with those mods.