How much boost can a stock 03 mustang GT take safely?
07-19-2008, 09:41 PM
#32
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Join Date: May 2007
Location: miami fl
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RE: How much boost can a stock 03 mustang GT take safely?
ORIGINAL: 2000GT4.6
you can do any of these mods, or none of them. The only difference is going to be the power level that you can achive safely.
You cannot have a 400+ WHP GT that is bone stock + blower kit. You can have a 400+ WHP GT that has full boltons and the blower kit.
Its all about how much money you want to spend and how much power you want to make. Both setups (stock/boltons etc) will be completely safe as long as you don't get stupid with the tune and keep it to a reasonable power level.
if you want specific advice on what to buy, post how much money you want to spend and how much power you want to make, along with the use of the car (dd, fun car only, etc).
ORIGINAL: Dragonus18
What are all the bolt-ons I need? What about the cam? Do I have to upgrade to a bigger one or go dual cam? What do you mean?
What are all the bolt-ons I need? What about the cam? Do I have to upgrade to a bigger one or go dual cam? What do you mean?
You cannot have a 400+ WHP GT that is bone stock + blower kit. You can have a 400+ WHP GT that has full boltons and the blower kit.
Its all about how much money you want to spend and how much power you want to make. Both setups (stock/boltons etc) will be completely safe as long as you don't get stupid with the tune and keep it to a reasonable power level.
if you want specific advice on what to buy, post how much money you want to spend and how much power you want to make, along with the use of the car (dd, fun car only, etc).
07-21-2008, 06:38 AM
#33
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Join Date: Aug 2007
Location: Shelbyville, Indiana
Posts: 1,088
RE: How much boost can a stock 03 mustang GT take safely?
If your motor has been well maintained 8 lbs of boost with a good tune should be fine. You should expect 350-370 rwhp. Adding more boost is mostly a matter of changing a pulley and getting a new tune. A 10 psi pulley should put you near 400 rwhp.If you put in forged internals and want to go higher, you might want to look beyond introductorylevel superchargers. Introductory level superchargers (such as my P1-SC) top out around 14 psi. So if you plan to go higher you need a higher capacity supercharger. You also need more fuel. Introductory supercharger kits come with 36 or 42 lbs injectors. You might need 60. As you increase boost you will need to go to a dual fuel pump system. You are also going beyondthe limits of your transmission and rear end. Both will have to be rebuilt. Even at 400 rwhp you have to upgrade your suspension with sub-frame connectors and upper an lower control arms to successfully get the power to the ground.
Unless you can do thework yourself, it takes around $8,000-10,000 to get to 400 rwhp. It takes a lot more to go higher.
Unless you can do thework yourself, it takes around $8,000-10,000 to get to 400 rwhp. It takes a lot more to go higher.
07-21-2008, 08:47 AM
#34
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Join Date: May 2007
Location: miami fl
Posts: 467
RE: How much boost can a stock 03 mustang GT take safely?
ORIGINAL: Eagle2000GT
If your motor has been well maintained 8 lbs of boost with a good tune should be fine. You should expect 350-370 rwhp. Adding more boost is mostly a matter of changing a pulley and getting a new tune. A 10 psi pulley should put you near 400 rwhp.If you put in forged internals and want to go higher, you might want to look beyond introductorylevel superchargers. Introductory level superchargers (such as my P1-SC) top out around 14 psi. So if you plan to go higher you need a higher capacity supercharger. You also need more fuel. Introductory supercharger kits come with 36 or 42 lbs injectors. You might need 60. As you increase boost you will need to go to a dual fuel pump system. You are also going beyondthe limits of your transmission and rear end. Both will have to be rebuilt. Even at 400 rwhp you have to upgrade your suspension with sub-frame connectors and upper an lower control arms to successfully get the power to the ground.
Unless you can do thework yourself, it takes around $8,000-10,000 to get to 400 rwhp. It takes a lot more to go higher.
If your motor has been well maintained 8 lbs of boost with a good tune should be fine. You should expect 350-370 rwhp. Adding more boost is mostly a matter of changing a pulley and getting a new tune. A 10 psi pulley should put you near 400 rwhp.If you put in forged internals and want to go higher, you might want to look beyond introductorylevel superchargers. Introductory level superchargers (such as my P1-SC) top out around 14 psi. So if you plan to go higher you need a higher capacity supercharger. You also need more fuel. Introductory supercharger kits come with 36 or 42 lbs injectors. You might need 60. As you increase boost you will need to go to a dual fuel pump system. You are also going beyondthe limits of your transmission and rear end. Both will have to be rebuilt. Even at 400 rwhp you have to upgrade your suspension with sub-frame connectors and upper an lower control arms to successfully get the power to the ground.
Unless you can do thework yourself, it takes around $8,000-10,000 to get to 400 rwhp. It takes a lot more to go higher.
07-21-2008, 09:22 AM
#35
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Join Date: Aug 2007
Location: Shelbyville, Indiana
Posts: 1,088
RE: How much boost can a stock 03 mustang GT take safely?
Yes that's reasonable for ancentrifical supercharger like Procharger or Vortech. You can get a Modular Power House Mongoose kit with a Vortech supercharger for $3,900. It does not come with an intercooler and it is highly recommended to have an intercooler for anything over 8 lbs of boost. Procharger comes with an intercooler about $4,500. Installation runs around $1,000. You might want some gages installed at time. I have a boost gage and a fuel pressure gage. I wish I had gotten a widebandA/F mixture gage instead of the fuel pressure though.
Mine cost me a little more because we had surprises during the install. The previous owner had installed underdrive pulleys that had to be replaced.
Mine cost me a little more because we had surprises during the install. The previous owner had installed underdrive pulleys that had to be replaced.
07-21-2008, 10:24 PM
#36
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Join Date: May 2007
Location: miami fl
Posts: 467
RE: How much boost can a stock 03 mustang GT take safely?
ORIGINAL: Eagle2000GT
Yes that's reasonable for ancentrifical supercharger like Procharger or Vortech. You can get a Modular Power House Mongoose kit with a Vortech supercharger for $3,900. It does not come with an intercooler and it is highly recommended to have an intercooler for anything over 8 lbs of boost. Procharger comes with an intercooler about $4,500. Installation runs around $1,000. You might want some gages installed at time. I have a boost gage and a fuel pressure gage. I wish I had gotten a widebandA/F mixture gage instead of the fuel pressure though.
Mine cost me a little more because we had surprises during the install. The previous owner had installed underdrive pulleys that had to be replaced.
Yes that's reasonable for ancentrifical supercharger like Procharger or Vortech. You can get a Modular Power House Mongoose kit with a Vortech supercharger for $3,900. It does not come with an intercooler and it is highly recommended to have an intercooler for anything over 8 lbs of boost. Procharger comes with an intercooler about $4,500. Installation runs around $1,000. You might want some gages installed at time. I have a boost gage and a fuel pressure gage. I wish I had gotten a widebandA/F mixture gage instead of the fuel pressure though.
Mine cost me a little more because we had surprises during the install. The previous owner had installed underdrive pulleys that had to be replaced.
07-21-2008, 11:44 PM
#37
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Join Date: Sep 2006
Location: CA
Posts: 4,039
RE: How much boost can a stock 03 mustang GT take safely?
Wideband A/F will tell you exactly what your air to fuel ratio is, so you can let out of the throttle if for whatever reason you start to lean out. Going lean when under boost causes detonation which is the leading cause of engine failure on stock bottom end 2v mustangs.
There is no set number that your engine is safe til. Every engine is different. Some give out at 350-370 and some run strong for years at over 400rwhp on the stock bottom. I will agree with 2000GT4.6 that the more supporting mods you have will allow your engine to produce the power easier. You would have to have a pretty sketchy tune to get a completely stock motor to hit 400rwhp at 10psi on pump gas. It wouldn't last for long like that.
Throw in a set of Blower cams and other supporting mods, then +400rwhp is not out of the question since you wouldn't have to run nearly as much timing or run it as lean to produce the same power.
There is no set number that your engine is safe til. Every engine is different. Some give out at 350-370 and some run strong for years at over 400rwhp on the stock bottom. I will agree with 2000GT4.6 that the more supporting mods you have will allow your engine to produce the power easier. You would have to have a pretty sketchy tune to get a completely stock motor to hit 400rwhp at 10psi on pump gas. It wouldn't last for long like that.
Throw in a set of Blower cams and other supporting mods, then +400rwhp is not out of the question since you wouldn't have to run nearly as much timing or run it as lean to produce the same power.
07-22-2008, 07:38 AM
#38
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Thread Starter
Join Date: May 2007
Location: miami fl
Posts: 467
RE: How much boost can a stock 03 mustang GT take safely?
ORIGINAL: tbirdscwd
Wideband A/F will tell you exactly what your air to fuel ratio is, so you can let out of the throttle if for whatever reason you start to lean out. Going lean when under boost causes detonation which is the leading cause of engine failure on stock bottom end 2v mustangs.
There is no set number that your engine is safe til. Every engine is different. Some give out at 350-370 and some run strong for years at over 400rwhp on the stock bottom. I will agree with 2000GT4.6 that the more supporting mods you have will allow your engine to produce the power easier. You would have to have a pretty sketchy tune to get a completely stock motor to hit 400rwhp at 10psi on pump gas. It wouldn't last for long like that.
Throw in a set of Blower cams and other supporting mods, then +400rwhp is not out of the question since you wouldn't have to run nearly as much timing or run it as lean to produce the same power.
Wideband A/F will tell you exactly what your air to fuel ratio is, so you can let out of the throttle if for whatever reason you start to lean out. Going lean when under boost causes detonation which is the leading cause of engine failure on stock bottom end 2v mustangs.
There is no set number that your engine is safe til. Every engine is different. Some give out at 350-370 and some run strong for years at over 400rwhp on the stock bottom. I will agree with 2000GT4.6 that the more supporting mods you have will allow your engine to produce the power easier. You would have to have a pretty sketchy tune to get a completely stock motor to hit 400rwhp at 10psi on pump gas. It wouldn't last for long like that.
Throw in a set of Blower cams and other supporting mods, then +400rwhp is not out of the question since you wouldn't have to run nearly as much timing or run it as lean to produce the same power.
Blower cams!? Where can I get those and what are the supporting mods that I need!!!???
07-22-2008, 08:42 AM
#39
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Join Date: Apr 2005
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Posts: 175
RE: How much boost can a stock 03 mustang GT take safely?
I've been doing some similar research on supercharging the stang. If you're not taking it to the track, and you plan to only use it on occasion, that Mongoose kit sounds like a solid choice. I've heard nothing but good things about the quality of the parts, and the exceptional (and safe) tune that comes along with it.
I think you're focusing a little too much on the number 10 for your psi. Sounds like you can easily get there after the 8 psi setup if you're not satisfied with that much boost. With 8 psi sounding much safer than 10 psi on a stock engine, I'd highly recommend ditching the attachment to the double digit boost level for the time being.
With a Mongoose kit and dyno check running about $4K (if you can install yourself), and if necessary, tune revision from MPH (free I assume?), you would have plenty of money left over for supporting mods, namely the rear suspension, stickier tires and perhaps an intercooler.
As you've said, you're new to the world of superchargers (as I will be). They call these introductory systems for a reason. And the bang-for-the-buck is very nice, especially if you're keeping it a daily driver. Can't fault you for wanting more, but if everyone's recommending 8psi and under 400rwhp, I think that'd be an excellent level to start at.
I have noticed you've asked for a list of supporting mods people would recommend. Aside from the full exhaust you already have, and the rear suspension and tires to get the power to the tarmac, I'm not sure what to recommend. Anyone else have suggestions on specific support mods?
Edit: Oops, forgot cams have been mentioned too.
I think you're focusing a little too much on the number 10 for your psi. Sounds like you can easily get there after the 8 psi setup if you're not satisfied with that much boost. With 8 psi sounding much safer than 10 psi on a stock engine, I'd highly recommend ditching the attachment to the double digit boost level for the time being.
With a Mongoose kit and dyno check running about $4K (if you can install yourself), and if necessary, tune revision from MPH (free I assume?), you would have plenty of money left over for supporting mods, namely the rear suspension, stickier tires and perhaps an intercooler.
As you've said, you're new to the world of superchargers (as I will be). They call these introductory systems for a reason. And the bang-for-the-buck is very nice, especially if you're keeping it a daily driver. Can't fault you for wanting more, but if everyone's recommending 8psi and under 400rwhp, I think that'd be an excellent level to start at.
I have noticed you've asked for a list of supporting mods people would recommend. Aside from the full exhaust you already have, and the rear suspension and tires to get the power to the tarmac, I'm not sure what to recommend. Anyone else have suggestions on specific support mods?
Edit: Oops, forgot cams have been mentioned too.
07-22-2008, 05:33 PM
#40
2nd Gear Member
Thread Starter
Join Date: May 2007
Location: miami fl
Posts: 467
RE: How much boost can a stock 03 mustang GT take safely?
ORIGINAL: crewwolfy
I've been doing some similar research on supercharging the stang. If you're not taking it to the track, and you plan to only use it on occasion, that Mongoose kit sounds like a solid choice. I've heard nothing but good things about the quality of the parts, and the exceptional (and safe) tune that comes along with it.
I think you're focusing a little too much on the number 10 for your psi. Sounds like you can easily get there after the 8 psi setup if you're not satisfied with that much boost. With 8 psi sounding much safer than 10 psi on a stock engine, I'd highly recommend ditching the attachment to the double digit boost level for the time being.
With a Mongoose kit and dyno check running about $4K (if you can install yourself), and if necessary, tune revision from MPH (free I assume?), you would have plenty of money left over for supporting mods, namely the rear suspension, stickier tires and perhaps an intercooler.
As you've said, you're new to the world of superchargers (as I will be). They call these introductory systems for a reason. And the bang-for-the-buck is very nice, especially if you're keeping it a daily driver. Can't fault you for wanting more, but if everyone's recommending 8psi and under 400rwhp, I think that'd be an excellent level to start at.
I have noticed you've asked for a list of supporting mods people would recommend. Aside from the full exhaust you already have, and the rear suspension and tires to get the power to the tarmac, I'm not sure what to recommend. Anyone else have suggestions on specific support mods?
Edit: Oops, forgot cams have been mentioned too.
I've been doing some similar research on supercharging the stang. If you're not taking it to the track, and you plan to only use it on occasion, that Mongoose kit sounds like a solid choice. I've heard nothing but good things about the quality of the parts, and the exceptional (and safe) tune that comes along with it.
I think you're focusing a little too much on the number 10 for your psi. Sounds like you can easily get there after the 8 psi setup if you're not satisfied with that much boost. With 8 psi sounding much safer than 10 psi on a stock engine, I'd highly recommend ditching the attachment to the double digit boost level for the time being.
With a Mongoose kit and dyno check running about $4K (if you can install yourself), and if necessary, tune revision from MPH (free I assume?), you would have plenty of money left over for supporting mods, namely the rear suspension, stickier tires and perhaps an intercooler.
As you've said, you're new to the world of superchargers (as I will be). They call these introductory systems for a reason. And the bang-for-the-buck is very nice, especially if you're keeping it a daily driver. Can't fault you for wanting more, but if everyone's recommending 8psi and under 400rwhp, I think that'd be an excellent level to start at.
I have noticed you've asked for a list of supporting mods people would recommend. Aside from the full exhaust you already have, and the rear suspension and tires to get the power to the tarmac, I'm not sure what to recommend. Anyone else have suggestions on specific support mods?
Edit: Oops, forgot cams have been mentioned too.