Street Racing & Kill Stories Basic Technical Questions & Advice

Stock 99 cobra m5 vs 01 z28

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Old 08-11-2012, 12:22 AM
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Originally Posted by 14k
idk but it pisses me the hell off!
when he was trying to sell it one guy said it has a green dot on the driver side head which means its a factory replaced newer engine than the 99s. but idk anything about fords.
idk how true that is. Checking casting numbers. Even if it were true and say it were a mach 1 engine, it should still be a close race stock for stock.
Old 08-11-2012, 12:22 AM
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^^^ no **** but i still want to know wtfs up
Old 08-11-2012, 12:38 AM
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Originally Posted by k_garretson23
idk how true that is. Checking casting numbers. Even if it were true and say it were a mach 1 engine, it should still be a close race stock for stock.
That was only for 2003 and early 2004 32V Mod motors (Cobra & MACH). The passenger side head would develope a tick supposedly for an overheating or lack of oil to the valves on the cylinder nearest the firewall. Ford would do a replacement on the head. The later 04 head had a colored mark to designate the new version heads. I was not aware of this on the 99 or 01 Mod motors. My 2004 MACH has the markings on the head since I ordered it in March of 2004.

...like someone stated above...you buddy's car could have replaced the Cobra motor with a MACH motor at some point.
Old 08-11-2012, 12:45 AM
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what would some things to look for to see if its a mach engine?
Old 08-11-2012, 01:17 AM
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Originally Posted by 14k
what would some things to look for to see if its a mach engine?
LOL..Not trying to be funny..but the whole shaker assembly and intake. I just could not see someone taking off the intake of a 99 Cobra and putting it on a MACH 1 motor. They could remove the shaker from the MACH motor but you would still see the mounting points on the manifold for the shaker. Other than that, I think it would be difficult since the mods were really to the redesign of the heads. Many of the parts from the 99 Cobra motor such as the Coil covers and cam covers were interchangelable...so I think it can be hidden nicely.

Don't know if anyone would go that far though..but you never know..
Old 08-11-2012, 05:16 AM
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Even when a Mach wins, it really doesn't win
Old 08-11-2012, 07:13 AM
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LOL @ everyone telling him what gear to put it in. With your mods you should be able to walk that car up top easily just leaving it in "D".

And OP, you have over 800 posts here and still don't know how to drive your car? What's wrong with you
Old 08-11-2012, 07:17 AM
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Originally Posted by zboy2012
My dad had an 01 z28 completely stock and beat our neighbors Mach1 that had exhaust and tune. Mach 1's are fast but theres not as fast as what people think and my neighbor will tell you he lost.
It was a joke, you know, about all the 10sec mach 1's running around.
Old 08-11-2012, 08:32 AM
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Originally Posted by 14k
My roommate has a bone stock 99 cobra with 5 speed. Only mod is gutted cats. I have tsp lts ls6 manifold tune lca lca relocation brackets sfc panhard and new tires. Every time we race i see nothing but tail lights from him. Wtf. I don't want to risk messing up my car by manually shifting so I put it in D. We do a 25 a 30. I just can't beat him. Is it because I floor it on the 3rd honk and it take a second to kick down and by then he's already taken off? I don't spin or anything. Any ideas? I don't see why his stock vs my mods beats me. Any idea?!?!?!
Maybe your tune is f'ed up.

Before your race slow down to 20 or so, put it to the floor and wait for it to down shift. Once it has, drop it in 2nd. Once the race starts bump it back into D.

No matter how you race you take the chance of breaking something.
Old 08-11-2012, 08:58 AM
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Basically. I don't race much. Although I have killed a few GTs no problem.
Old 08-11-2012, 09:02 AM
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Originally Posted by Redfire 03
LOL @ everyone telling him what gear to put it in. With your mods you should be able to walk that car up top easily just leaving it in "D".
This is what I have been thinking. **** I'm an lt1 and I'm not afraid of any stock mustang besides a Shelby, cobra or new 5.0...and even then I'll still play.

You sure your running on all 8 cylinders OP? lol
Old 08-11-2012, 09:14 AM
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OP my friend bought a stock 99 cobra last weekend and after some research I did for him about his car here are some things I found out. In 99 the Cobra's had an issue with not making the power that Ford advertised it to make. Ford would replace or acid dip the intake manifold reflash the pcm and change out the cat back exhaust. Ford said that this would 100% provide the power that Ford had advertised. The green dot that has been mentioned was to notate that Ford had did the power recall to that motor. In some severe cases Ford would actually replace the motor but in most cases just the parts I mentioned before.
Old 08-11-2012, 10:53 AM
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And was it making more or less than what ford said it was making?
I'm Gunna race him again today.
I'm not scared to race any mustangs except the termis and gt500s I haven't had a problem before with mustangs. Iv been with him when he's raced a trans am with similar mods and same outcome as our race but the ta was further behind. And he said he raced a SS same outcome. Idk wtf.
Old 08-11-2012, 11:03 AM
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Originally Posted by BigBirdLS1
OP my friend bought a stock 99 cobra last weekend and after some research I did for him about his car here are some things I found out. In 99 the Cobra's had an issue with not making the power that Ford advertised it to make. Ford would replace or acid dip the intake manifold reflash the pcm and change out the cat back exhaust. Ford said that this would 100% provide the power that Ford had advertised. The green dot that has been mentioned was to notate that Ford had did the power recall to that motor. In some severe cases Ford would actually replace the motor but in most cases just the parts I mentioned before.
This was with the first batch of Cobra's released, and even after the fix they were still high 13 second cars at 103-ish in the 1/4 mile. No monsters for sure. A stock A4 LS1 should have no problem running door to door or pulling slightly up top.

OP is probably just having a little fun here. lol
Old 08-11-2012, 11:27 AM
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I'm not having fun wish i was. It's a serious thread.
Old 08-11-2012, 11:28 AM
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I may be wrong and I know this don't mean anything but wasn't car and driver and motortrend able to get mid 13s at 106 in a stock 99 cobra AFTER Ford did the power recall. That seems within the realm of a stock A4 f-body to me
Old 08-11-2012, 11:32 AM
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Originally Posted by V8EATR
It was a joke, you know, about all the 10sec mach 1's running around.
I know haha
Old 08-11-2012, 11:49 AM
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I'm hoping I'm just doing something wrong and the second to kick down is where he's getting the jump and our races aren't long enough to reel him in since it's in town when we have had our races.
Old 08-11-2012, 01:17 PM
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Originally Posted by BigBirdLS1
I may be wrong and I know this don't mean anything but wasn't car and driver and motortrend able to get mid 13s at 106 in a stock 99 cobra AFTER Ford did the power recall. That seems within the realm of a stock A4 f-body to me
even so those are losing times to a stock ls1 car, let alone a modded one. Op do you have any track times for either car? Id take my car to a tunner and see whats up.
Old 08-11-2012, 01:35 PM
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They are definitely losing times to a stock f-body from a dig. But two different cars with very similiar 1/4 times from a roll the advantage is in the M5 > auto everytime.

But I agree the tune needs looked at. With the longtubes the A/F may be a little off and the 02's could be lazy.


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