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Author
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Topic: 03 Cobra. What to look for
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50DADDY
CAFords OG
Member # 3076
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posted
 
 
DO A COMPRESSION TEST!!!!!!!!!!!!
Mandatory.
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"Im not stupid,i just act that way so i dont make you dummies uncomfortable."
"Old age and treachery shall overcome youth and skill."
Posts: 4827 | From: Suckramento | Registered: Jul 2003
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Mr.Lucky
CAFords OG
Member # 1772
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posted
quote:
Originally posted by 50DADDY:
DO A COMPRESSION TEST!!!!!!!!!!!!
Mandatory.
+10000 do the test. It'll tell you right away whether you're wasting your time.
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95GT: Bolt ons.
Good sellers/buyers: Stangs R Us, 1SicGt, sn4bwc, racsirx, WickedStang, Autumnstang97, cali95gt
Posts: 4197 | From: Manteca | Registered: Sep 2002
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50 Deep
Jockin 03 Cobras
Member # 6216
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posted
Dont know the owner, but i can tell you now the car has seen some racing. The blower is painted which means its been off and probably pullied at some point. Upgraded axles are normally a sign of the car having been to the track since wheel hop will snap the stockers with improper tires on launch. Without an IRS brace the rear pumpkins are prone to leak from flexing at launch. With that low of miles there wouldnt really be a reason to replace the clutch if not for racing. If the motor has been replaced it was probably due to the valve tick or low compression. If the guy has receipts and the new motor really has 6k on it then all you need to worry about is the trans and IRS. Probably be good to run an OASIS report from Ford and see what service it has had done. Basically its a carfax from the dealer but you need to know someone who works there.
To Do:
*Compression test of all 8 cylinders
*Check the pumpkin for any signs of leaking at the bottom
*Test drive and be sure you dont hear a clunk from the rear IRS whenever you shift into gear.
If everything checks out then it would be a pretty solid buy. Good luck
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Signature Wheel Ford Representative
Email: Terrance@Signaturewheel.com
Instagram: @Signature_Wheel_Mustang
Web: www.SignatureWheel.com
Posts: 6043 | From: sacramento | Registered: Nov 2005
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POWERED BY FORD
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Member # 9204
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posted
quote:
Originally posted by 50 Deep:
Dont know the owner, but i can tell you now the car has seen some racing. The blower is painted which means its been off and probably pullied at some point. Upgraded axles are normally a sign of the car having been to the track since wheel hop will snap the stockers with improper tires on launch. Without an IRS brace the rear pumpkins are prone to leak from flexing at launch. With that low of miles there wouldnt really be a reason to replace the clutch if not for racing. If the motor has been replaced it was probably due to the valve tick or low compression. If the guy has receipts and the new motor really has 6k on it then all you need to worry about is the trans and IRS. Probably be good to run an OASIS report from Ford and see what service it has had done. Basically its a carfax from the dealer but you need to know someone who works there.
To Do:
*Compression test of all 8 cylinders
*Check the pumpkin for any signs of leaking at the bottom
*Test drive and be sure you dont hear a clunk from the rear IRS whenever you shift into gear.
If everything checks out then it would be a pretty solid buy. Good luck
T when I go shopping for mines ama bring you with me haha
Posts: 2204 | Registered: May 2009
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RED@7kVERT *8850GT*
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Member # 5909
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posted
Dont forget a leak down as well....
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02 Z06-11.0 @ 132 1.9 60'
_ _ _ _ _ ____ _ _ _ _ _
Sold:05 CTS-V-13.1@114
Sold:01 Cobra Vert-12.0@119
Posts: 2432 | From: -916- | Registered: Aug 2005
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50 Deep
Jockin 03 Cobras
Member # 6216
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posted
quote:
Originally posted by Pittsburg Mustang Owner:
what psi should each cylinder be at roughly?
Well i believe from the factory it should be in the 150-170 range. I dont know the exact number, but it should be within that range. Now something i learned from Shaun and John B is that all the cylinders are supposed to be within 5%-10% of eachother to show a healthy motor. I think some OEM companies will allow up to 15-20% difference, but not something you want in a performance application. So it is possible that all cylinders could read 120 psi, and still be considered healthy because they are not out of range. When you do the test dont focus so much on the raw psi, but the percent of difference. However anything below 140 or so would seem like too much wear on the motor IMO
If the numbers are further apart than this then there is a chance the cylinder is losing compression due to bad rings or the valves not sealing properly. The Compression test identifies if the cylinder is healthy, and the leak down shows you where the flaw is. Scott is right on the leak down test, but only do that after the compression test shows some flaw.
Lalo Bro let me know when you go shopping for one. I have looked at enought bad ones to notice some issues. lol
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Signature Wheel Ford Representative
Email: Terrance@Signaturewheel.com
Instagram: @Signature_Wheel_Mustang
Web: www.SignatureWheel.com
Posts: 6043 | From: sacramento | Registered: Nov 2005
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Fostang
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Member # 3752
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posted
Just buy my whippled cobra right at 14k miles on it.
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
57' Chevy Bel Air Lsx
68’ Pony Convertible
66’ Pony Coupe
Posts: 3011 | From: Stockton/Danville | Registered: Nov 2003
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GOT 50
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Member # 1960
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posted
quote:
Originally posted by Fostang:
Just buy my whippled cobra right at 14k miles on it.
How much lol.
Posts: 2139 | From: SF/DALY CITY/MILLBRAE | Registered: Oct 2002
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03SVTPower
CAFords OG
Member # 518
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posted
quote:
Originally posted by Fostang:
Just buy my whippled cobra right at 14k miles on it.
how much rwhp?
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2003 Redfire "AED" Cobra R.I.P
Posts: 3481 | From: Nor-Cal | Registered: Oct 2001
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90GT510
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Member # 9199
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posted
quote:
Originally posted by GOT 50:
quote:
Originally posted by Fostang:
Just buy my whippled cobra right at 14k miles on it.
How much lol.
+1 how much and what color?
Posts: 1725 | From: East Bay/Dallas, TX | Registered: May 2009
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Fostang
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Member # 3752
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posted
still have every single stock part
whipple 2.3 2.9 rr pulley also have 3.25 and 3.5 with belts
ported stock tb
k n cai
billetflow idler
rr tensioner
60 lb injectors
2400 sct maf
sct x3
kennebell bap
bassani catted or non catted x
borla stingers
billetflow IRS brace
bbs 18's great pilot tires
h k springs
dual pass exchanger
lfp expansion tank
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
57' Chevy Bel Air Lsx
68’ Pony Convertible
66’ Pony Coupe
Posts: 3011 | From: Stockton/Danville | Registered: Nov 2003
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98 ROUSH
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Member # 10309
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posted
quote:
Originally posted by Fostang:
still have every single stock part
whipple 2.3 2.9 rr pulley also have 3.25 and 3.5 with belts
ported stock tb
k n cai
billetflow idler
rr tensioner
60 lb injectors
2400 sct maf
sct x3
kennebell bap
bassani catted or non catted x
borla stingers
billetflow IRS brace
bbs 18's great pilot tires
h k springs
dual pass exchanger
lfp expansion tank
Wanna trade LOL! Clean Cobra ![[patriot]](graemlins/patriot.gif)
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Built 2v
Stroked, Cammed and Blown
Advanced Auto Built & Kurgan Tuned
Posts: 4678 | From: North Hayward, Cali | Registered: Sep 2010
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GOT 50
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Member # 1960
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posted
Nice,
Price with and without the whipple?
Posts: 2139 | From: SF/DALY CITY/MILLBRAE | Registered: Oct 2002
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03RedfireSVT
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Member # 10069
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posted
Sell you mine for 17.5k.....never raced here. ![[Big Grin]](biggrin.gif)
Posts: 205 | From: Sacramento | Registered: Jun 2010
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Fostang
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Member # 3752
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posted
quote:
Originally posted by GOT 50:
Nice,
Price with and without the whipple?
20.5k bone stock With springs and wheels
25k as it sits
check kbb it's basicly trade in for a clean titled with 14k miles I have the pink in hand registered till next year and smogg still good I think till mid next month.
But would need a non refundable deposit if you decide to buy non stock and I can have it back to stock in a few hours.
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67' Fastback TT 408
67' Camaro Lsx
64' Corvette Fuelie
57' Chevy Bel Air Lsx
68’ Pony Convertible
66’ Pony Coupe
Posts: 3011 | From: Stockton/Danville | Registered: Nov 2003
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88FOX
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Member # 9969
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posted
that thing is cleannn never seen that color combo looks good bro
[ April 25, 2011, 09:33 PM: Message edited by: NASTY88 ]
Posts: 1938 | From: bay area | Registered: Apr 2010
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SLOWSN95
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Member # 8269
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posted
quote:
Originally posted by 50 Deep:
Dont know the owner, but i can tell you now the car has seen some racing. The blower is painted which means its been off and probably pullied at some point. Upgraded axles are normally a sign of the car having been to the track since wheel hop will snap the stockers with improper tires on launch. Without an IRS brace the rear pumpkins are prone to leak from flexing at launch. With that low of miles there wouldnt really be a reason to replace the clutch if not for racing. If the motor has been replaced it was probably due to the valve tick or low compression. If the guy has receipts and the new motor really has 6k on it then all you need to worry about is the trans and IRS. Probably be good to run an OASIS report from Ford and see what service it has had done. Basically its a carfax from the dealer but you need to know someone who works there.
To Do:
*Compression test of all 8 cylinders
*Check the pumpkin for any signs of leaking at the bottom
*Test drive and be sure you dont hear a clunk from the rear IRS whenever you shift into gear.
If everything checks out then it would be a pretty solid buy. Good luck
I don't own a cobra and I'm not too familiar with IRS setups, but wouldn't a clunk when you put it in 1st gear mean that the bushings supporting the IRS are worn? Pretty much most of the 03-04 cobras do it right? All five 03-04s that I've ridin in has the clunk.
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94' GT
347 Stroker
MM Suspended
2003 SB SVT Lightning
Pullied and Lowered
89'Hatch-SOLD
Posts: 2214 | From: 510/east bay | Registered: Mar 2008
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50 Deep
Jockin 03 Cobras
Member # 6216
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posted
quote:
Originally posted by SLOWSN95:
quote:
Originally posted by 50 Deep:
Dont know the owner, but i can tell you now the car has seen some racing. The blower is painted which means its been off and probably pullied at some point. Upgraded axles are normally a sign of the car having been to the track since wheel hop will snap the stockers with improper tires on launch. Without an IRS brace the rear pumpkins are prone to leak from flexing at launch. With that low of miles there wouldnt really be a reason to replace the clutch if not for racing. If the motor has been replaced it was probably due to the valve tick or low compression. If the guy has receipts and the new motor really has 6k on it then all you need to worry about is the trans and IRS. Probably be good to run an OASIS report from Ford and see what service it has had done. Basically its a carfax from the dealer but you need to know someone who works there.
To Do:
*Compression test of all 8 cylinders
*Check the pumpkin for any signs of leaking at the bottom
*Test drive and be sure you dont hear a clunk from the rear IRS whenever you shift into gear.
If everything checks out then it would be a pretty solid buy. Good luck
I don't own a cobra and I'm not too familiar with IRS setups, but wouldn't a clunk when you put it in 1st gear mean that the bushings supporting the IRS are worn? Pretty much most of the 03-04 cobras do it right? All five 03-04s that I've ridin in has the clunk.
Yes, and it depends on how the car was driven. The one i picked up didnt have the clunk, but then again it wasnt beat on. A few of the ones i test drove had that problem though. If you come across it then its a sign of how the car was treated.
Posts: 6043 | From: sacramento | Registered: Nov 2005
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SLOWSN95
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Member # 8269
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posted
quote:
Originally posted by 50 Deep:
quote:
Originally posted by SLOWSN95:
quote:
Originally posted by 50 Deep:
Dont know the owner, but i can tell you now the car has seen some racing. The blower is painted which means its been off and probably pullied at some point. Upgraded axles are normally a sign of the car having been to the track since wheel hop will snap the stockers with improper tires on launch. Without an IRS brace the rear pumpkins are prone to leak from flexing at launch. With that low of miles there wouldnt really be a reason to replace the clutch if not for racing. If the motor has been replaced it was probably due to the valve tick or low compression. If the guy has receipts and the new motor really has 6k on it then all you need to worry about is the trans and IRS. Probably be good to run an OASIS report from Ford and see what service it has had done. Basically its a carfax from the dealer but you need to know someone who works there.
To Do:
*Compression test of all 8 cylinders
*Check the pumpkin for any signs of leaking at the bottom
*Test drive and be sure you dont hear a clunk from the rear IRS whenever you shift into gear.
If everything checks out then it would be a pretty solid buy. Good luck
I don't own a cobra and I'm not too familiar with IRS setups, but wouldn't a clunk when you put it in 1st gear mean that the bushings supporting the IRS are worn? Pretty much most of the 03-04 cobras do it right? All five 03-04s that I've ridin in has the clunk.
Yes, and it depends on how the car was driven. The one i picked up didnt have the clunk, but then again it wasnt beat on. A few of the ones i test drove had that problem though. If you come across it then its a sign of how the car was treated.
I was thinking it was more of a normal thing for them. I know my buddy's 03 has had it ever since he purchased the car at 59k miles. The previous original owner was a woman in her mid 50s and I doubt she beat on it. Then again, the car is getting up there in mileage (80k+ now)..
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94' GT
347 Stroker
MM Suspended
2003 SB SVT Lightning
Pullied and Lowered
89'Hatch-SOLD
Posts: 2214 | From: 510/east bay | Registered: Mar 2008
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Tha91SiCkNeSs
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Member # 5790
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posted
quote:
Originally posted by SLOWSN95:
quote:
Originally posted by 50 Deep:
quote:
Originally posted by SLOWSN95:
quote:
Originally posted by 50 Deep:
Dont know the owner, but i can tell you now the car has seen some racing. The blower is painted which means its been off and probably pullied at some point. Upgraded axles are normally a sign of the car having been to the track since wheel hop will snap the stockers with improper tires on launch. Without an IRS brace the rear pumpkins are prone to leak from flexing at launch. With that low of miles there wouldnt really be a reason to replace the clutch if not for racing. If the motor has been replaced it was probably due to the valve tick or low compression. If the guy has receipts and the new motor really has 6k on it then all you need to worry about is the trans and IRS. Probably be good to run an OASIS report from Ford and see what service it has had done. Basically its a carfax from the dealer but you need to know someone who works there.
To Do:
*Compression test of all 8 cylinders
*Check the pumpkin for any signs of leaking at the bottom
*Test drive and be sure you dont hear a clunk from the rear IRS whenever you shift into gear.
If everything checks out then it would be a pretty solid buy. Good luck
I don't own a cobra and I'm not too familiar with IRS setups, but wouldn't a clunk when you put it in 1st gear mean that the bushings supporting the IRS are worn? Pretty much most of the 03-04 cobras do it right? All five 03-04s that I've ridin in has the clunk.
Yes, and it depends on how the car was driven. The one i picked up didnt have the clunk, but then again it wasnt beat on. A few of the ones i test drove had that problem though. If you come across it then its a sign of how the car was treated.
I was thinking it was more of a normal thing for them. I know my buddy's 03 has had it ever since he purchased the car at 59k miles. The previous original owner was a woman in her mid 50s and I doubt she beat on it. Then again, the car is getting up there in mileage (80k+ now)..
From the last thing I remember, the clunk was because the IRS bolts were incorrectly sized..?
I've had the clunk in my car for over 6 years. No problems on my end.
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2003 Cobra
Posts: 565 | From: Sacramento | Registered: Jun 2005
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