03/04 Cobra common problems

F8LSNAKE · May 9th, 2008, 07:27 AM

A good drag radial or et street will usually fix the wheelhop issue as well. I ran in the 10's with the factory irs and it was still holding strong with 60's in the 1.50's.

1Badsnake · May 9th, 2008, 07:38 AM

There are two trains of thought with respect to the rear suspension. If you go to the website that Zootoxin recommended it will show you the straight axle build-up or the irs build -up. I chose to build up both of my cobras Irs and with a good pair of rear hides and upgraded half shafts wheel hop has dwindled to almost nothing. Oh and I invested in some good road springs for one and good drag springs for th other.

WilltheThrill · May 9th, 2008, 02:55 PM

Originally Posted by F8LSNAKE

A good drag radial or et street will usually fix the wheelhop issue as well.

very true. i finally got some and they've helped alot. T-man2, i noticed that u said u have another car for a daily driver. in that case, i highly recommend that u put drag radials on the back. u can get some nitto 555r's that will last u a good length of time as long as u dont go out doing alot of burnouts.

t-man2 · May 9th, 2008, 03:03 PM

ok cool i was lookin at the nitto555 anyway so yeah i'll prob get some in the next couple of weeks...this is my weekend car so the tire mileage dont matter but it's great if they last a good while

WilltheThrill · May 9th, 2008, 03:52 PM

do u plan on doing any fast curvy road driving?

F8LSNAKE · May 9th, 2008, 05:33 PM

IMO the nitto is a good all around tire(I used to daily drive on them), but if it's only a weekend sunny day type of car put a Mickey Thompson or a Hoosier on it. They are a 100 times better for traction. They don't last as long, but they are way more fun.

drazga97 · May 9th, 2008, 11:25 PM

another problem is most people cant drive them to their potential.

F8LSNAKE · May 10th, 2008, 07:06 AM

Originally Posted by drazga97

another problem is most people cant drive them to their potential.

Yep, but that's not the cars fault. Lol.

Fastback91 · May 10th, 2008, 10:22 PM

when u guys say high speed runs do u mean like over 110mph
and like when u guys say like alternators go out is that because like u guys go like 100mph like everyday and stomp on the gas or is that just a common thing that happens during daily drving too.

F8LSNAKE · May 11th, 2008, 10:03 AM

Originally Posted by Fastback91

when u guys say high speed runs do u mean like over 110mph
and like when u guys say like alternators go out is that because like u guys go like 100mph like everyday and stomp on the gas or is that just a common thing that happens during daily drving too.

No, I'm talking about those guys making the long 5th and 6th gear pulls(140-160). As for the alternators, I think it's just a random thing. I haven't had any trouble with mine(knock on wood), but I know alot of owners have.

562cobra · May 29th, 2008, 05:20 PM

alternator for me luckily i have a lifetime warranty aftermarket one FTW.
wow f8lsnake, im impressed with your times, and alternator strength.

usafimj · May 29th, 2008, 06:11 PM

I would still do the cooling mod even if the head tick has been fixed. This has been the best one so far

Ford 99-04 Mustang DOHC Cooling Mod [LCM] - $219.99 : Performance Parts - Ford Mustang - Cobra - Dodge Viper - Chevy Corvette - C6 - LS1

drazga97 · May 29th, 2008, 06:11 PM

F8LSNAKE props on your times with an heaton. really shows the potential in these cars.

F8LSNAKE · May 29th, 2008, 08:51 PM

Thanks for the compliments guys, I'm shootin for 10.20's when the weather gets cool again in the fall. It's already in the 90's here. Oh, and I highly recommend the cooling mod.

thelpb · May 30th, 2008, 12:49 PM

Check out the alternator, it may need to be replaced. The FRPS on the fuel rail also tends to blow up.

03venom · May 31st, 2008, 01:07 PM

The stock throwout bearing retainer sleeves tend to break on the 03 cobras also. I had to replace mine after a night at the track.

WilltheThrill · June 1st, 2008, 06:05 AM

Originally Posted by 03venom

The stock throwout bearing retainer sleeves tend to break on the 03 cobras also. I had to replace mine after a night at the track.

is that a common problem though?

96GTRagTop · June 1st, 2008, 06:06 AM

One of the biggest problems with the 03/04 terminator is that they never belong to me, but to someone else who has more money and/or debt

mustangjl · June 1st, 2008, 05:55 PM

if your brother has one you don't.

RanGer498 · June 2nd, 2008, 07:15 AM

Originally Posted by t-man2

heck yeah premium is freakin $3.99 today on the way to my commute to douglasville and regular is $3.60 or something...i can't take it anymore lol

its $4.01 and $3.89 over here

May 9th, 2008, 07:27 AM	#21
F8LSNAKE Newbie 03 cobra 10.48@130.56 Join Date: May 2008 Location: Warner Robins, GA Posts: 44	A good drag radial or et street will usually fix the wheelhop issue as well. I ran in the 10's with the factory irs and it was still holding strong with 60's in the 1.50's. __________________ Qwickest/Fastest no nitrous eaton in the country. 10.48@130.56

May 9th, 2008, 03:52 PM	#25
WilltheThrill MM Fanatic 03 Cobra 13.2 @ 108 at 2710 ft. elevation Join Date: Dec 2006 Location: CA Posts: 3,868	do u plan on doing any fast curvy road driving? __________________ my friends call it the "screamin' banana" and dont forget......smoke tires, not drugs.

May 9th, 2008, 05:33 PM	#26
F8LSNAKE Newbie 03 cobra 10.48@130.56 Join Date: May 2008 Location: Warner Robins, GA Posts: 44	IMO the nitto is a good all around tire(I used to daily drive on them), but if it's only a weekend sunny day type of car put a Mickey Thompson or a Hoosier on it. They are a 100 times better for traction. They don't last as long, but they are way more fun. __________________ Qwickest/Fastest no nitrous eaton in the country. 10.48@130.56

May 9th, 2008, 11:25 PM	#27
drazga97 Enthusiast 2004 Mustang GT 13.82 @ 101.09 Join Date: Oct 2007 Location: New Jersey Posts: 601	another problem is most people cant drive them to their potential. __________________ 2004 Gt Silver 5 speed tint all around, jlt cold air intake, black fr500s, and 555rs. next mod: mach 1 or termi?

May 10th, 2008, 10:22 PM	#29
Fastback91 Enthusiast 1997 Mustang GT Auto 4rd fastests car @ Highschool Join Date: Aug 2007 Location: California Posts: 881	when u guys say high speed runs do u mean like over 110mph and like when u guys say like alternators go out is that because like u guys go like 100mph like everyday and stomp on the gas or is that just a common thing that happens during daily drving too. __________________ Mustang GT:K&N CAI FIpk gen2,Magnaflow Mufflers, Alumnium IntakeManifold,Royal Purple performance Oil Upcoming mods: dunno what ever i can get i guesss maybe SFC,or 70mm Throttle body.

May 9th, 2008, 07:38 AM	#22
1Badsnake Regular 2003 Mustang Cobra Join Date: May 2007 Location: Chesapeake, Virginia Posts: 139	There are two trains of thought with respect to the rear suspension. If you go to the website that Zootoxin recommended it will show you the straight axle build-up or the irs build -up. I chose to build up both of my cobras Irs and with a good pair of rear hides and upgraded half shafts wheel hop has dwindled to almost nothing. Oh and I invested in some good road springs for one and good drag springs for th other.

May 9th, 2008, 03:03 PM	#24
t-man2 Newbie 2003 Mustang Cobra Join Date: May 2008 Location: Georgia Posts: 13	ok cool i was lookin at the nitto555 anyway so yeah i'll prob get some in the next couple of weeks...this is my weekend car so the tire mileage dont matter but it's great if they last a good while

May 29th, 2008, 05:20 PM	#31
562cobra Newbie 2003 Mustang Cobra Join Date: May 2008 Location: Long Beach, CA Posts: 20	alternator for me luckily i have a lifetime warranty aftermarket one FTW. wow f8lsnake, im impressed with your times, and alternator strength. __________________

May 29th, 2008, 06:11 PM	#32
usafimj Hardcore Enthusiast 2007 Ford Mustang GT Join Date: Sep 2007 Location: Oklahoma City, Ok. Posts: 1,543	I would still do the cooling mod even if the head tick has been fixed. This has been the best one so far Ford 99-04 Mustang DOHC Cooling Mod [LCM] - $219.99 : Performance Parts - Ford Mustang - Cobra - Dodge Viper - Chevy Corvette - C6 - LS1 __________________ '07 GT, 5spd, Grabber Orange, JLT CAI, X3, Hurst Shifter, FRPP 4.10s -Awaiting install: Stage II NSR Comp Cams Hurst Crew Member #13 soon to be part of the Cammed Crew Military Crew E-5

May 29th, 2008, 08:51 PM	#34
F8LSNAKE Newbie 03 cobra 10.48@130.56 Join Date: May 2008 Location: Warner Robins, GA Posts: 44	Thanks for the compliments guys, I'm shootin for 10.20's when the weather gets cool again in the fall. It's already in the 90's here. Oh, and I highly recommend the cooling mod. __________________ Qwickest/Fastest no nitrous eaton in the country. 10.48@130.56

May 30th, 2008, 12:49 PM	#35
thelpb Newbie Join Date: May 2008 Posts: 5	Check out the alternator, it may need to be replaced. The FRPS on the fuel rail also tends to blow up.

May 31st, 2008, 01:07 PM	#36
03venom Look Ma! My First Post! 2003 Mustang Cobra 13.2@109.79 (stock) Join Date: May 2008 Location: Dawsonville, Ga Posts: 1	throwout bearing The stock throwout bearing retainer sleeves tend to break on the 03 cobras also. I had to replace mine after a night at the track.

June 1st, 2008, 05:55 PM	#39
mustangjl Regular 2002 mustang gt 14.7 @98 all stock Join Date: Nov 2007 Location: dawsonville Posts: 214	if your brother has one you don't. __________________ mods:bbk longtubes,xpipe, flowmaster catback,75mm tb,3.73,sct x3,p1sc-8psi,3 core intercooler,mph tune. fastest et 14.7 all stock bowties are for little boys

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