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The Terminator
Engine/Tuning
Help Needed on 03 Cobra
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<blockquote data-quote="SlowSVT" data-source="post: 8176504" data-attributes="member: 20202"><p>Redfire</p><p></p><p>Before you start throwing lots of money at your Cobra I suggest you use the "search" function here and educate yourself by what other peoples have done and what their experiences have been. Do not take any one persons word for it including mine. There are some smart people on this site but there are also some real amatures who don't think things out very well and believe because they done something to their car means it's the best idea. Some times what they end up with is a car that has poor street manners, spine chilling handling, loud and unreliable.</p><p></p><p>Here is something to go on.</p><p></p><p>A Kenne Bell supercharge is a great unit as well as a Whipple (2.3 AX140 gets my vote but that's just me.) Don't go crazy with high boost levels (15-17 lbs. max) depending on the available gas. Do not take the engine to the ragged edge with the supercharger because you will increase the likelihood of granading the motor (this is no NA engine and will show no mercy on you should something get out of tilt). Traction in 1st, 2nd and 3rd with either of those blowers will almost be "non-existent". 600 hp is a good safe limit. Anything over that it starts to get expensive and risky.</p><p></p><p>Supporting mods: this is mainly <strong>fuel system</strong>, <strong>cooling</strong> and <strong>driveline</strong> upgrades. Mistakes or "lack of" here will turn you mill into a 650 lb. paperweight. </p><p></p><p>I did not see sub-frame connectors on your mod list. That should be your very next purchase if you don’t have them already.</p><p></p><p>IRS vs. solid axle. If the car won't be driven on the street and mainly at the drag strip the solid is a good choice (a full on drag car wont handle very well so keep that in mind). Everywhere else the IRS will out perform a stick axle PERIOD! Putting a stick axle in the car will diminish the cars appeal should you plan on selling the car down the road. Get a set of AC427's Delrin upper and lower control arm bushings and your rear will be planted to the ground and won't wheel hop.</p><p></p><p>Yes, the 05 heads are the ones to get IF they need replacing. I won't bother because they won't buy you anything more then what you have today other then a revised cooling circuit and 9 plug heads (your helicoil will correct that). Porting the heads won't buy you much either nor will headers until your making stupid hp.</p><p></p><p>Plan on spending between 5-10 thousand dollars depending on what you do to the car and by all means find a good tuner. Bad tunes are the #1 killer of these engines. Any tuner you talk to should be viewed with suspicion regardless unless you can get referrals by 3 or more people who's Cobra's he or she has tuned is still in one piece.</p><p></p><p>The vendors like Lethal Performance and others are very knowledgeable and are cobra enthusiast as well (plus the help pay for our ability to post here) so that is the first place you should go) Get your OEM and Ford Racing parts from Steve at Trousley Ford (he is a rock star on this site). Maximum Motorsports for suspension parts if you wanna go somewhere other then just a straight line.</p><p></p><p>Don't rush into this of you will make the wrong decisions which will end up costing you plenty. "search" "search" "search" "read" "read" "read"! ask questions when you can't find your answer with given the amount of info on here is not likely.</p><p></p><p>I am awed by some of these guys are running around on the street making 700-800 hp and have a deep respect for them. You chose a great car and hopefully will make good decisions on how you proceed with your build. Please just don't cheapen the stature of your car by hanging silly useless trinkets on it just to draw attention. Most guys leave them stock looking. These cars need no "attention getters" and anyone who doesn't recognize it will learn the hard way soon enough <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue :p" loading="lazy" data-shortname=":p" />oke:</p><p></p><p></p><p>Good luck and welcome to the site :beer:</p></blockquote><p></p>
[QUOTE="SlowSVT, post: 8176504, member: 20202"] Redfire Before you start throwing lots of money at your Cobra I suggest you use the "search" function here and educate yourself by what other peoples have done and what their experiences have been. Do not take any one persons word for it including mine. There are some smart people on this site but there are also some real amatures who don't think things out very well and believe because they done something to their car means it's the best idea. Some times what they end up with is a car that has poor street manners, spine chilling handling, loud and unreliable. Here is something to go on. A Kenne Bell supercharge is a great unit as well as a Whipple (2.3 AX140 gets my vote but that's just me.) Don't go crazy with high boost levels (15-17 lbs. max) depending on the available gas. Do not take the engine to the ragged edge with the supercharger because you will increase the likelihood of granading the motor (this is no NA engine and will show no mercy on you should something get out of tilt). Traction in 1st, 2nd and 3rd with either of those blowers will almost be "non-existent". 600 hp is a good safe limit. Anything over that it starts to get expensive and risky. Supporting mods: this is mainly [B]fuel system[/B], [B]cooling[/B] and [B]driveline[/B] upgrades. Mistakes or "lack of" here will turn you mill into a 650 lb. paperweight. I did not see sub-frame connectors on your mod list. That should be your very next purchase if you don’t have them already. IRS vs. solid axle. If the car won't be driven on the street and mainly at the drag strip the solid is a good choice (a full on drag car wont handle very well so keep that in mind). Everywhere else the IRS will out perform a stick axle PERIOD! Putting a stick axle in the car will diminish the cars appeal should you plan on selling the car down the road. Get a set of AC427's Delrin upper and lower control arm bushings and your rear will be planted to the ground and won't wheel hop. Yes, the 05 heads are the ones to get IF they need replacing. I won't bother because they won't buy you anything more then what you have today other then a revised cooling circuit and 9 plug heads (your helicoil will correct that). Porting the heads won't buy you much either nor will headers until your making stupid hp. Plan on spending between 5-10 thousand dollars depending on what you do to the car and by all means find a good tuner. Bad tunes are the #1 killer of these engines. Any tuner you talk to should be viewed with suspicion regardless unless you can get referrals by 3 or more people who's Cobra's he or she has tuned is still in one piece. The vendors like Lethal Performance and others are very knowledgeable and are cobra enthusiast as well (plus the help pay for our ability to post here) so that is the first place you should go) Get your OEM and Ford Racing parts from Steve at Trousley Ford (he is a rock star on this site). Maximum Motorsports for suspension parts if you wanna go somewhere other then just a straight line. Don't rush into this of you will make the wrong decisions which will end up costing you plenty. "search" "search" "search" "read" "read" "read"! ask questions when you can't find your answer with given the amount of info on here is not likely. I am awed by some of these guys are running around on the street making 700-800 hp and have a deep respect for them. You chose a great car and hopefully will make good decisions on how you proceed with your build. Please just don't cheapen the stature of your car by hanging silly useless trinkets on it just to draw attention. Most guys leave them stock looking. These cars need no "attention getters" and anyone who doesn't recognize it will learn the hard way soon enough :poke: Good luck and welcome to the site :beer: [/QUOTE]
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