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11-26-2007, 02:36 AM | #1 |
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EGR System
Exhaust Gas Recirculation System (EGR)
The EGR system is designed to reintroduce exhaust gas into the combustion chambers, thereby lowering combustion temperatatures and reducing the formation of Oxides of Nitrogen. The amount of exhaust gas that is reintroduced into the combustion cycle is determined by several factors, such as : engine speed engine vacuum exhaust system back-pressure coolant temperature throttle position
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1999 Ford F-150 Lariat |
11-26-2007, 02:38 AM | #2 |
BamaMafia 4 Life
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With that being said, I know that a lot of people opt to remove the EGR system altogether.
My question is what does deleting this system effect? What are the benefits and drawbacks? Primary concerns for drawbacks are low speed drivability, fuel consumption, and idle quality (since as I understand it the EGR is closed at full throttle anyway)
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1999 Ford F-150 Lariat Last edited by 1sicklx; 11-26-2007 at 03:17 AM. |
12-13-2007, 08:54 AM | #3 | |
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Drawbacks 1. Breaking Federal Law by increasing emissions. 2. Hurting part throttle economy. Benefits 1. With the increase in greenhouse gasses we can look foreward to driving shorter distances to the ocean or Gulf. 2. Global climate changes increase vacationing possibilities.
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89LX Hatch 89LX Coupe 89GT 90GT 93GT |
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12-13-2007, 10:15 PM | #4 | |
Daddy x4 ...we're done
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I don't beleive there are any federal laws that govern emissions on my 19 year-old car.
My car has a 418 cubic-inch motor... do you really think I care about fuel economy? Quote:
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-Brian '86 Mustang GT Convertible '88 Mustang LX coupe '11 Odyssey TE '21 Insight Touring |
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12-13-2007, 10:54 PM | #5 | |
Halfshaft Killer
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03 Cobra 06 F250 (\__/) (='.'=) (")_(") |
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12-14-2007, 03:27 PM | #6 |
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ROFLMAO
No Clean Air Act of 1970 and amendments of 1977 & 1990 (c) For purposes of enforcement of this section, officers or employees duly designated by the Administrator, upon presenting appropriate credentials to the manufacturer or person in charge, are authorized (1) to enter, at reasonable times, any plant or other establishment of such manufacturers, for the purpose of conducting tests of vehicles of engines in the hands of the manufacturer, or (2) to inspect at reasonable times, records, files, papers, processes, controls, and facilities used by such manufacturer in conducting tests under regulations of the Administrator. Each such inspection shall be commenced and completed with reasonable promptness. (d) The Administrator shall by regulation establish methods and procedures for making tests under this section. (e) The Administrator shall make available to the public the results of his tests of any motor vehicle or motor vehicle engine submitted by a manufacturer under subsection (a) as promptly as possible after the enactment of the Clean Air Amendments of 1970 and at the beginning of each model year which begins thereafter. Such results shall be described in such nontechnical manner as will reasonably disclose to prospective ultimate purchasers of new motor vehicles and new motor vehicle engines the comparative performance of the vehicles and engines tested in meeting the standards prescribed under section 202 of this Act. (f) All light duty vehicles and engines manufactured during or after model year 1984 and all light-duty trucks manufactured during or after model year 1995 shall comply with the requirements of section 202 of this Act regardless of the altitude at which they are sold. (g)(1) In the case of any class or category of heavy-duty vehicles or engines to which a standard promulgated under section 202(a) of this Act applies, except as provided in paragraph (2), a certificate of conformity shall be issued under subsection (a) and shall not be suspended or revoked under subsection (b) for vehicles or engines manufactured by a manufacturer notwith- standing the failure of such vehicles or engines to meet such standard if such manufacturer pays a nonconformance penalty as provided under regulations promulgated by the Administrator after notice and opportunity for public hearing. In the case of motorcycles to which such a standard applies, such a certificate may be issued notwithstanding such failure if the manufacturer pays such a penalty. (2) No certificate of conformity may be issued under paragraph (1) with respect to any class or category of vehicle or engine if the degree by which the manufacturer fails to meet any standard promulgated under section 202(a) with respect to such class or category exceeds the percentage determined under regulations promulgated by the Administrator to be practicable. Such regula- tions shall require such testing of vehicle or engines being produced as may be necessary to determine the percentage of the classes or categories of vehicles or engines which are not in compliance with the regulations with respect to which a certifi- cate of conformity was issued and shall be promulgated not later than one year after the date of enactment of the Clean Air Act Amendments of 1977. (3) The regulations promulgated under paragraph (1) shall, not later than one year after the date of enactment of the Clean Air Act Amendments of 1977, provide for nonconformance penalties in amounts determined under a formula established by the Administra- tor. Such penalties under such formula- (A) may vary from pollutant-to-pollutant; (B) may vary by class or category or vehicle or engine; (C) shall take into account the extent to which actual emissions of any air pollutant exceed allowable emissions under the standards promulgated under section 202; (D) shall be increased periodically in order to create incentives for the development of production vehicles or engines which achieve the required degree of emission reduc- tion; and (E) shall remove any competitive disadvantage to manufac- turers whose engines or vehicles achieve the required degree of emission reduction (including any such disadvantage arising from the application of paragraph (4)). (4) In any case in which a certificate of conformity has been issued under this subsection, any warranty required under section 207(b)(2) and any action under section 207(c) shall be required to be effective only for the emission levels which the Administrator determines that such certificate was issued and not for the emission levels required under the applicable standard. (5) The authorities of section 208(a) shall apply, subject to the conditions of section 208(b), for purposes of this subsection. (h) Within 18 months after the enactment of the Clean Air Act Amendments of 1990, the Administrator shall review and revise as necessary the regulations under subsection (a) and (b) of this section regarding the testing of motor vehicles and motor vehicle engines to insure that vehicles are tested under circumstances which reflect the actual current driving conditions under which motor vehicles are used, including conditions relating to fuel, temperature, acceleration, and altitude. [42 U.S.C. 7525] COMPLIANCE BY VEHICLES AND ENGINES IN ACTUAL USE Sec. 207. (a)(1) Effective with respect to vehicles and enginesmanufactured in model years beginning more than 60 days after the date of the enactment of the Clean Air Amendments of 1970, the manufacturer of each new motor vehicle and new motor vehicle engine shall warrant to the ultimate purchaser and each subsequent purchaser that such vehicle or engine is (A) designed, built, and equipped so as to conform at the time of sale with applicable regulations under section 202, and (B) free from defects in materials and workmanship which cause such vehicle or engine to fail to conform with applicable regulations for its useful life (as determined under section 202(d). In the case of vehicles and engines manufactured in the model year 1995 and thereafter such warranty shall require that the vehicle or engine is free from any such defects for the warranty period provided under subsection (i). (2) In the case of a motor vehicle part or motor vehicle engine part, the manufacturer or rebuilder of such part may certify that use of such part will not result in a failure of the vehicle or engine to comply with emission standards promulgated under section 202. Such certification shall be made onlyunder such regulations as may be promulgated by the Administrator to carry out the purposes of subsection (b). The Administrator shall promulgate such regulations no later than two years following the date of the enactment of this paragraph.
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89LX Hatch 89LX Coupe 89GT 90GT 93GT Last edited by LeeH; 12-14-2007 at 03:46 PM. |
12-14-2007, 03:27 PM | #7 |
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(3) The cost of any part, device, or component of any
light-duty vehicle that is designed for emission control and which in the instructions issued pursuant to subsection (c)(3) of this section is scheduled for replacement during the useful life of the vehicle in order to maintain compliance with regulations under section 202 of this Act, the failure of which shall not interfere with the normal performance of the vehicle, and the expected retail price of which, including installation costs, is greater than 2 percent of the suggested retail price of such vehicle, shall be borne or reimbursed at the time of replacement by the vehicle manufacturer and such replacement shall be provided without cost to the ultimate purchaser, subsequent purchaser, or dealer. The term "designed for emission control" as used in the preceding sentence means a catalytic converter, thermal reactor, or other component installed on or in a vehicle for the sole or primary purpose of reducing vehicle emissions (not including those vehicle components which were in general use prior to model year 1968 and the primary function of which is not related to emission control). (b) If the Administrator determines that (i) there are available testing methods and procedures to ascertain whether, when in actual use throughout its the warranty period (as determined under subsection (i)), each vehicle and engine to which regulations under section 202 apply complies with the emission standards of such regulations, (ii) such methods and procedures are in accordance with good engineering practices, and (iii) such methods and procedures are reasonably capable of being correlated with tests conducted under section 206(a)(1), then (1) he shall establish such methods and procedures by regulation, and (2) at such time as he determines that inspection facilities or equipment are available for purposes of carrying out testing methods and procedures established under paragraph (1), he shall prescribe regulations which shall require manufacturers to warrant the emission control device or system of each new motor vehicle or new motor vehicle engine to which a regulation under section 202 applies and which is manufactured in a model year beginning after the Administrator first prescribes warranty regulations under this paragraph. The warranty under such regulations shall run to the ultimate purchaser and each subsequent purchaser and shall provide that if- (A) the vehicle or engine is maintained and operated in accordance with instructions under subsection (c)(3), (B) it fails to conform at any time during its1 the warranty period (as determined under subsection (i)) to the regulations prescribed under section 202, and (C) such nonconformity results in the ultimate purchaser (or any subsequent purchaser) of such vehicle or engine having to bear any penalty or other sanction (including the denial of the right to use such vehicle or engine) under State or Federal law, then such manufacturer shall remedy such nonconformity under such warranty with the cost thereof to be borne by the manufac- turer. No such warranty shall be invalid on the basis of any part used in the maintenance or repair of a vehicle or engine if such part was certified as provided under subsection (a)(2). [For purposes of the warranty under this subsection, for the period after twenty-four months or twenty-four thousand miles (whichever first occurs) the term "emission control device or system" means a catalytic converter, thermal reactor, or other component installed on or in a vehicle for the sole or primary purpose of reducing vehicle emissions. Such terms shall not include those vehicle components which were in general use prior to model year 1968.] (c) Effective with respect to vehicles and engines manufactured during model years beginning more than 60 days after the date of enactment of the Clean Air Amendments of 1970 (d) Retrofit Requirements.- Not later than 12 months after the enactment of the Clean Air Act Amendments of 1990, the Administrator shall promulgate regulations under section 202(a) requiring that urban buses which- (1) are operating in areas referred to in subparagraph (A) of subsection (c)(2) (or subparagraph (C) of subsection (c)(2) if the Administrator has taken action under that subparagraph); (2) were not subject to standards in effect under the regulations under subsection (a); and (3) have their engines replaced or rebuilt after January 1, 1995, shall comply with an emissions standard or emissions control technology requirement established by the Administrator in such regulations. Such emissions standard or emissions control technology requirement shall reflect the best retrofit technology and maintenance practices reasonably achievable.
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89LX Hatch 89LX Coupe 89GT 90GT 93GT |
12-14-2007, 12:47 AM | #8 | |
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13.068 @ 102 with a 1.732 60 ft, 4:30 gears and drag radials, 2.5 inch exaust, x pipe w/ flowmasters, stock motor and trans |
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11-26-2007, 05:02 AM | #9 |
3v's are slow
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The only benefit is to clean up the engine bay. That's it. I still have my EGR valve on the cobra but all of my smog stuff is gone so it probably isn't doing anything on my car.
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2009 Porsche Carrera S 2008 ///AMG C63.. Eurocharge Tune. RIP 2019 AMG GLC43..wife's 03 F250 SD.. Edge Evo, AFE Stage 1 CAI 08 GT. JBA axle back, FRPP springs, FRPP swaybars.. daughter's 01 Cobra vert... wife's I need a new toy |
11-26-2007, 12:09 PM | #10 |
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i deleted mine to clean the engine bay up and for the added room. really no difference in performance but everything is a lot easier to get to now.
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1994 Cobra Pace Car #365 of 1000 light mods 1994 mustang GT 3.55's, 331 stroker, 75mm tb, 75mm maf, mac h pipe SOLD (ole yella u will be missed ((>>. Rubbing Is Racing |
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