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DOHC - 2.3L Duratec / Mazda L Engines Discussions and Topics specific to the Duratec 4 cylinder engines

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  #1  
Old 07-16-2008
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Performance for 2008 2.3L 5spd

I am a new owner and have the following questions

I checked with Eslinger and they do not do anything for the DOHC eng only single. What other than exhaust will make a difference on this engine?

Now lets be clear, I realize this is a 4 banger and am not expecting it to pick the wheels up off the ground from installing a K & N, but I am looking to possibly venture into some mods that will make a noticeable difference is stock performance.

Also, Where can I find the history on this engine? Durability?

My 95 had the 8 plug 2.3 and I am new to this one in 2008.

Thanks for the help
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  #2  
Old 07-17-2008
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ive got a cold air intake from aFe and a cat back exhaust with performance plugs in my 98' 2.5L.......and its still slow lol. other then just the bolt on apps, nothing much really i can recommend bud.
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  #3  
Old 07-17-2008
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I'm running a drop in K&N with a modded air box, Royal Purple synthetic oil and 2.5" cat back exhaust. I've picked up enough performance to be fun, but now I need an X-cal tuner. These new DOHC 2.3 motors are reliable as all get out, and pretty peppy too. Gas millage is awesome too.
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  #4  
Old 07-20-2008
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I have a K&N 77 series cold air intake, and a Pro sound muffler. It runs ok but highway its kinda a slug with my 30 inch tires on it. It will spin the 30s off the line surprisingly.
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  #5  
Old 07-20-2008
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Intake, exhaust should having you running a 17flat or better with a 5 speed and good shifting.
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  #6  
Old 07-20-2008
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If you want speed look into a turbo car, im buying a turbo jetta that has stage 2 turbo and clutch along with everything else done to it, the 4 banger truck got on my nerves esp with 31s...hated down shifting on every hill. Needed lower gears but oh well
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  #7  
Old 07-21-2008
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Damon,

With this small of a engine I'd suggest three things.
1) Get an X-cal 2 and a tune from Fred at Rogue performance.

2) Underdrive pullies (on a 4cyl go a loooong way in freeing up power)

3) Find out where the meat of the TQ curve is and operate in that range.
If that means a gear swap.. so be it. This will cost you in MPG. But if you can increase the available TQ by 50% or even 100% **where you use it** you'll have a whole different attitude about a small engine.

Beyond those three items and everything else is just small patatoes.

Rich
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  #8  
Old 07-21-2008
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Originally Posted by wydopnthrtl View Post
2) Underdrive pullies (on a 4cyl go a loooong way in freeing up power)Rich
Really? Because I heard just the opposite, the pullies, if available would do nothing for the 4 banger.
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Old 07-21-2008
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Think about it. If they free up 10hp, on a 200hp 4.0, thats a 5% increase, but on a 143hp 2.3, thats a 7% increase. 7% makes a huge difference in the way a car moves.
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  #10  
Old 07-22-2008
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Originally Posted by wydopnthrtl View Post
Damon,

With this small of a engine I'd suggest three things.
1) Get an X-cal 2 and a tune from Fred at Rogue performance.

2) Underdrive pullies (on a 4cyl go a loooong way in freeing up power)

3) Find out where the meat of the TQ curve is and operate in that range.
If that means a gear swap.. so be it. This will cost you in MPG. But if you can increase the available TQ by 50% or even 100% **where you use it** you'll have a whole different attitude about a small engine.

Beyond those three items and everything else is just small patatoes.

Rich
Thanks for the info.

I am glad you mentioned the tune because in all honesty I know this engine is what it is, but I have been haunted by the speed limiter and want to take care of that if at all possible.

I will try to find this place you speak of.
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  #11  
Old 07-22-2008
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The UDP, and tuner WILL void your Ford warranty! Also keep in mind that certain parameters (like MAX engine RPM) are stored in NVRAM and Ford can read these parameters out in the case of warranty claims.

But, there are members on R-F that are independently wealthy, and don't care about their Ford warranty at all!!
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  #12  
Old 07-22-2008
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The UDP, and tuner WILL void your Ford warranty! Also keep in mind that certain parameters (like MAX engine RPM) are stored in NVRAM and Ford can read these parameters out in the case of warranty claims.

But, there are members on R-F that are independently wealthy, and don't care about their Ford warranty at all!!
Must you be an a$$ about everything on here? Underdrive pulleys won't void your warranty, and the tuner will not either as long as you remove it before you take it in for warranty work. The MAX engine RPM DTC is set a few hundred over redline, when I worked at Ford we would run into it on the Mustangs, so he is right about if you get a tune make sure you don't go wild with the calibrations.
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  #13  
Old 07-22-2008
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Originally Posted by 67cobain94 View Post
Must you be an a$$ about everything on here? Underdrive pulleys won't void your warranty, and the tuner will not either as long as you remove it before you take it in for warranty work. The MAX engine RPM DTC is set a few hundred over redline, when I worked at Ford we would run into it on the Mustangs, so he is right about if you get a tune make sure you don't go wild with the calibrations.
Read it, and weep......hopefully, you can comprehend!!

By Joe Bradley, Manager of Ford's Warranty Analysis department

"As you might expect from the company that formed SVT, the Ford Motor Company has many employees who are true performance enthusiasts -- folks who love and care for their personal high-performance vehicles as much as or more than the next guy or gal. Many of us, in fact, are true "weekend warriors" who can be found at the local drag strip or road course on Saturdays and Sundays, and tinkering under the hood during weekday evenings getting ready for the next event. As automotive enthusiasts, we certainly can appreciate performance machinery.

That said, as Ford employees we all want to do the right thing for our customers as well as for the Ford Motor Company. That is precisely why it is important to have a concise, easy-to-understand policy with regard to Ford warranty administration. For vehicles that are not modified, the Ford warranty policy is clear – the company backs its products within the guidelines of the new vehicle limited warranty, which is designed to protect the customer from defects in factory workmanship and/or material.

However, in the case of vehicles that have been modified, one needs to understand that the modifications may affect warranty coverage. This is simply because any damage or failure of new vehicle components or systems that was caused by modifications to the vehicle are not defects in "factory supplied" workmanship or material.

To illustrate this point, let's consider a small sample of vehicle modifications and see how they might affect factory components or systems: When it comes to changing the factory engine drive pulleys, there are some powertrain system and component concerns that deserve consideration. One would be any electrical and/or charging system problems that arise because of reduced alternator operating speed caused by the installation of underdrive pulleys. After all, the performance and serviceability of many system components are based on certain design parameters that include operating speed. The same goes for problems stemming from higher cooling system temperatures because of reduced water pump flow caused by the installation of underdrive pulleys. Increased underhood temperatures caused by owner-induced changes to a factory design-specification part can have a detrimental effect on any number of powertrain components or systems – some that may have long-range implications. And things can get even more serious when supercharger pulley changes are made, including head gasket leaks and piston and connecting rod failures. Also possible is piston damage due to detonation from improper air/fuel and timing modifications.

The installation of any non-factory forced induction system can also cause problems. Base engines modified with aftermarket superchargers, turbochargers or nitrous oxide injection systems may indeed bring about some power gains, but they can cause piston, connecting rod and/or crankshaft failures as well.

Other parts of a vehicle's factory-spec drivetrain are also susceptible to damage when engine torque and horsepower is increased. Performance chips or other power-enhancing devices increase torque loads on the driveline and can force failure of the transmission and/or rear axle. The latter problem can be especially true when owners switch to wider tires or racing slicks in an effort to increase traction. Even non "go-fast" aftermarket accessories such as remote starters, alarms, supplementary gauges and audio equipment can cause electrical system service problems if they are installed incorrectly or have improper connections.

When it comes to fairly evaluating the possibility of a warranty denial, there's one simple rule of thumb to follow: Although the installation of non-Ford parts and aftermarket modifications, by themselves, will not void the Ford New Vehicle Limited Warranty, failures that result from these parts and/or modifications may result in a denial of warranty coverage for such failures or damage.

The bottom line is, Ford Motor Company wants each of its owners to enjoy their product to the fullest extent – and that includes performance vehicles. But dealer service technicians have seen, and continue to see, that modifications may cause the original design to fail. The addition of aftermarket parts is a risk that each and every vehicle owner must evaluate for themselves. All that's needed is a reasonable dose of common sense. When and if you modify your vehicle, please consider whether the modification may cause another component to fail – and if it does, recognize that warranty coverage for that failure or damage will likely be denied. "



And, read the vehicle manufacturer warranty section in this article, which is almost 4 years old:


http://www.usatoday.com/tech/news/in...blackbox_x.htm

...and one more:

http://www.edn.com/index.asp?layout=...cleid=CA529380

Last edited by Takeda; 07-22-2008 at 08:50 AM.
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  #14  
Old 07-22-2008
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Now, honestly, unless you got the 10 year 110K mile extended warranty, the factory warranty is useless. My wife made me promise not to modify the truck till warranty was up, so it stayed stock for 1 1/2 years. But seriously, you got a reliable motor and a manual tranny, neither of which are even remotely likely to go out under warranty, so it's kind of a mute issue. Now if we lived up north, or somewhere where we didn't have to drive such long distances, the warranty would last longer, and be a bigger issue. But when you drive 25K annually, the reg warranty ain't worth much.

Now, that being said, I keep hearing about these under drive pulleys, but does anybody know where to get them for the 2.3 Duratec?
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  #15  
Old 07-22-2008
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hey guys i need some more advice can you take a look at my forum it the one that says left me stranded, i would greatly appreciate it.
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  #16  
Old 07-22-2008
D.
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Originally Posted by wydopnthrtl View Post
Damon,

With this small of a engine I'd suggest three things.
1) Get an X-cal 2 and a tune from Fred at Rogue performance.

2) Underdrive pullies (on a 4cyl go a loooong way in freeing up power)

3) Find out where the meat of the TQ curve is and operate in that range.
If that means a gear swap.. so be it. This will cost you in MPG. But if you can increase the available TQ by 50% or even 100% **where you use it** you'll have a whole different attitude about a small engine.

Beyond those three items and everything else is just small patatoes.

Rich
To add ontop of what Rich has stated, adding power won't do ANY good if your not putting it to the ground and making it work.

A set of Lakewood or Southside traction bars ( both are under 100$ ) help a LOT! . A Panhard rod or rear sway will also help as well. Good tires that have enough grip for whatever your putting out is a BIG factor.

I'm betting with your current setup and dumping the clutch, you can smoke the rear tires. It looks great but wastes tires and doesn't help you at all. If your overpowering the tires presently, what will more power be good for? Not much.
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  #17  
Old 07-22-2008
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Originally Posted by Takeda View Post
The UDP, and tuner WILL void your Ford warranty! Also keep in mind that certain parameters (like MAX engine RPM) are stored in NVRAM and Ford can read these parameters out in the case of warranty claims.
ROFLMAO! I gotta do this!

Quote:
Read it, and weep......hopefully, you can comprehend!!
The Magnuson-Moss Warranty Act (15 U.S.C. 2302C) is a federal law which regulates warranties for the protection of consumers. The essence of the law concerning aftermarket auto parts is that a vehicle manufacturer may not condition a written or implied warranty on the consumers using parts or services which are identified by brand, trade, or corporate name (such as the vehicle maker's brand) unless the parts or service are provided free of charge. The law means that the use of an aftermarket part alone is not cause for denying the warranty. However, the law's protection does not extend to aftermarket parts in situations where such parts actually caused the damage being claimed under the warranty. Further, consumers are advised to be aware of any specific terms or conditions stated in the warranty which may result in its being voided. The law states in relevant part: "No warrantor of a consumer product may condition his written or implied warranty of such product on the consumers using, in connection with such product, any article or service (other than article or service provided without charge under the terms of the warranty) which is identified by brand, trade or corporate name.

Thats U.S. LAW. Do you beg to differ ( wanting us all to believe you ) and state a company warranty is higher in court then a U.S. Law?

If his Tranny goes, they CANNOT refute his claim as a Pulley nor tuner has NOTHING to do with it. If his engine tosses a rod, they will have one hell of a time proving a pulley or tuner did that as well.

Ford can't afford the lawsuits, get a clue.

Last edited by D.; 07-22-2008 at 05:06 PM.
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  #18  
Old 07-22-2008
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hey, D., do ya have a link to those Southside bars? I can't seem to find em.
Also, on the Lakewood bars, would I be better off going with a universal bar, since I'm spring under?
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  #19  
Old 07-22-2008
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Originally Posted by Takeda View Post
The UDP, and tuner WILL void your Ford warranty! Also keep in mind that certain parameters (like MAX engine RPM) are stored in NVRAM and Ford can read these parameters out in the case of warranty claims.

But, there are members on R-F that are independently wealthy, and don't care about their Ford warranty at all!!
Wrong. They will not void the warranty unless Ford can prove that the aftermarket parts in question actually caused the problem being claimed under the warranty. Im not sure the exact law that states this, but i had the discussion with the Ford dealership where I bought my truck. ill try and research it for you.
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  #20  
Old 07-22-2008
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Originally Posted by D. View Post



The Magnuson-Moss Warranty Act (15 U.S.C. 2302C) is a federal law which regulates warranties for the protection of consumers. The essence of the law concerning aftermarket auto parts is that a vehicle manufacturer may not condition a written or implied warranty on the consumers using parts or services which are identified by brand, trade, or corporate name (such as the vehicle maker's brand) unless the parts or service are provided free of charge. The law means that the use of an aftermarket part alone is not cause for denying the warranty. However, the law's protection does not extend to aftermarket parts in situations where such parts actually caused the damage being claimed under the warranty. Further, consumers are advised to be aware of any specific terms or conditions stated in the warranty which may result in its being voided. The law states in relevant part: "No warrantor of a consumer product may condition his written or implied warranty of such product on the consumers using, in connection with such product, any article or service (other than article or service provided without charge under the terms of the warranty) which is identified by brand, trade or corporate name.

Thats U.S. LAW. Do you beg to differ ( wanting us all to believe you ) and state a company warranty is higher in court then a U.S. Law?

If his Tranny goes, they CANNOT refute his claim as a Pulley nor tuner has NOTHING to do with it. If his engine tosses a rod, they will have one hell of a time proving a pulley or tuner did that as well.

Ford can't afford the lawsuits, get a clue.
There ya go Takeda! lol
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  #21  
Old 07-22-2008
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There ya go Takeda! lol
That guy is such a tool.

Intake/Warranty Police
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  #22  
Old 07-22-2008
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Another thing Takeda doesnt realize is that most of these mods are reversible. Example: I use the X cal tuner and underdrive pulleys. My tranny blows up. All I gotta do before towing it into the friendly Ford dealership is take the pulleys off and flash the factory tune back on. Then you dont even have to worry about an over zealous mechanic saying its the tuners fault the tranny blew. Same with my lift. If I really have to, i can take it off and Ford wouldnt know the difference.
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  #23  
Old 07-22-2008
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Originally Posted by D. View Post
ROFLMAO! I gotta do this!



The Magnuson-Moss Warranty Act (15 U.S.C. 2302C) is a federal law which regulates warranties for the protection of consumers. The essence of the law concerning aftermarket auto parts is that a vehicle manufacturer may not condition a written or implied warranty on the consumers using parts or services which are identified by brand, trade, or corporate name (such as the vehicle maker's brand) unless the parts or service are provided free of charge. The law means that the use of an aftermarket part alone is not cause for denying the warranty. However, the law's protection does not extend to aftermarket parts in situations where such parts actually caused the damage being claimed under the warranty. Further, consumers are advised to be aware of any specific terms or conditions stated in the warranty which may result in its being voided. The law states in relevant part: "No warrantor of a consumer product may condition his written or implied warranty of such product on the consumers using, in connection with such product, any article or service (other than article or service provided without charge under the terms of the warranty) which is identified by brand, trade or corporate name.

Thats U.S. LAW. Do you beg to differ ( wanting us all to believe you ) and state a company warranty is higher in court then a U.S. Law?

If his Tranny goes, they CANNOT refute his claim as a Pulley nor tuner has NOTHING to do with it. If his engine tosses a rod, they will have one hell of a time proving a pulley or tuner did that as well.

Ford can't afford the lawsuits, get a clue.

This law was written to protect the public against vehicle manufactures demanding that only their consumable parts (oil filters, oil, etc.) could be
used, or the warranty was void. Bottom line, you can use a Purolator oil
filter, instead of a Motorcraft oil filter and your warranty will not be void!
"Performance" mods are a different story, period, as stated by Joe Bradley!

A little more detail:

I’ll try to make this as short as possible so please bear with me. First, I am not expert and this is ONLY my opinion based on reading not only the Magnuson-Moss Warranty Act but many other articles written based off of it.

The Magnuson-Moss Warranty Act was intended and is intended to protect the consumer, the person who bought the vehicle, from the manufacture dictating to them, the consumer, that they MUST use the manufactures oils, filters, belts, tires, etc, the list goes on.

Now, a manufacture can FORCE you to use only their parts BUT if they do they, the manufacture, must supply it to you free of charge and free of any labor cost. That is the very short version of the Magnuson-Moss Warranty Act.

The “Act” will NOT protect you if you install “performance enhancing” parts, such as a supercharger, nitrous oxide, suspension kits, etc. The reason is when you install those kinds of parts you are in fact “altering” the original design of the vehicle and frankly I would stand side by side with any manufacture in any court and take their side.

No one has a right to alter the vehicles original design AND then expect the manufacture to warranty items rendered defective because of said parts. For example if you install a supercharger and blow your motor, transmission or rear-end tough luck that’s your fault and NOT the manufactures.

With that said, the above example would ONLY render your power train warranty invalided but none of the rest of the warranty. People look at the warranty as a complete package and it is NOT, it has many entities to it such as electrical, suspension etc. While one may be rendered invalid the rest is not.

Personally I hope no manufacture would ever have to pay for repairs to someone’s vehicle that puts on a cold air intake and then blows the motor because of a lean condition. If the manufacture was ever forced to do those then guess what? We all pay for the dummies who know nothing about properly tuning a vehicle. Trust me the manufacture will indeed pass that cost along to everyone in the form of higher vehicle prices.

The Magnuson-Moss Warranty Act is ONLY FOR aftermarket parts that MEET the manufactures specifications. If you use the wrong motor oil that does not meet Ford’s specifications guess what? You out of luck because you just voided your warranty for failure to use the PROPER specified parts.

The Magnuson-Moss Warranty Act is NOT and has NEVER been for aftermarket PERFORMANCE INHANCING parts.

FORD CLEARLY STATES THE FOLLOWING:

From the Ford Cars and Light Trucks 2006 Model Year Warranty Guide (June 2005, Fourth Printing) page 8:

Not covered by the warranty:

”Damage Caused by Alteration or Modification
* alterations or modifications of the vehicle, including the body, chassis, or components, after the vehicle leaves the control of Form Motor Company.

That right their my friends should put everybody’s mind to rest because ANY alterations or modifications will void that part of the warranty. Cold air intake, tunes, programs then kiss the power train, transmission and rear-end warranty bye-bye. Lowering kits, kiss the suspension, possibly the transmission and rear-end warranty bye-bye etc…

Last edited by Takeda; 07-22-2008 at 06:24 PM.
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  #24  
Old 07-22-2008
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i see bobbie is at it again

what a shame
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  #25  
Old 07-22-2008
D.
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Originally Posted by Johnbaum13 View Post
hey, D., do ya have a link to those Southside bars? I can't seem to find em.
Also, on the Lakewood bars, would I be better off going with a universal bar, since I'm spring under?
The Southside bars/system are no longer offered. They have some new stuff ( I haven't looked into them in 3 years, sorry about that ).

The Lakewoods are like 100$ from Summit. The ' Universal ' ones will work just fine.
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