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PostPosted: 14 May 2009, 19:18 
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Ma bate un gand sa renunt la catalizatorul de la masina mea. E un 1.9 JTD cu chip la 130 cai si 190mii km la bord. A mai incercat cineva operatiunea asta ? Se simte la demaraj, consum , etc?

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PostPosted: 14 May 2009, 19:23 
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Nu merita.

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PostPosted: 14 May 2009, 21:43 
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Mie cativa mi-au spus ca merita, mai ales la km astia ca e foarte imbacsit si restrictiv. Mai astept pareri.

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PostPosted: 14 May 2009, 21:56 
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Daca este stricat, decat sa dai banii pe unul nou mai bine te lipsesti si pui teava, altffel mari schimbari pentru masina aproape stock nu vei simti.
bafta!

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PostPosted: 15 May 2009, 02:55 
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Eu mi-am scos unul din catalizatoare...sincer se simte diferenta...nu mai are intarzierea aia care o are un dielsel in mod obisnuit...cel mai mult imi place cum trage in treapta 4 si 5...incearca si nu o sa regreti

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Alfa Romeo GT 2.0 JTS 165cp
ex:Seat Leon 1.9 TDI 2001 110cp+
ex:Skoda Octavia 1.9 TDI 2007 105cp
ex:Audi A6 2.7 quattro 2006 180 cp
ex:Alfa 155 1.9 TD 1993 90cp
ex:Alfa 156 1.9 JTD 2002 115 cp


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PostPosted: 15 May 2009, 09:44 
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Controversat subiect, se discuta peste tot. Parerile sunt impartite, dupa cum deja se si vede.
Personal nu recomand, daca e acolo, e cu un motiv, daca il scoti tu muncitoreste si pui teava o sa fi
fericitul posesor al unei perechi de 2-3 cai in plus! Crezi ca sa o sa simti tu furia lor intr-a 4? Clar nu!
Sa nu mai pun la socoteala ca o sa-ti "horcaie" motorul al dizelar de santier dimineata si ce o sa lasi tu
in urma cand dai in ea nu lasa nici uzina din Pitesti.
Ma rog, liber arbitru, deci da-i bice!


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PostPosted: 15 May 2009, 11:20 
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Sincer motorul nu "horcaie" si nu scoate DELOC fum

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Alfa Romeo GT 2.0 JTS 165cp
ex:Seat Leon 1.9 TDI 2001 110cp+
ex:Skoda Octavia 1.9 TDI 2007 105cp
ex:Audi A6 2.7 quattro 2006 180 cp
ex:Alfa 155 1.9 TD 1993 90cp
ex:Alfa 156 1.9 JTD 2002 115 cp


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PostPosted: 15 May 2009, 11:38 
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Acum...dar mai tarziu? Te-ai gandit la uzura motorului? Catalizatorul ala produce, prin principiu, rezistenta la evacuare...oare de ce?
Daca vrei cai mai multi poti sa-ti faci un remap si ai terminat povestea, nu te apuci sa demontezi la ea in speranta ca vei obtine un ferrari, si sa-i raspund cum se cuvine la omului in caz......
Frate, daca ai dubii ca e infundat la 190k SCHIMBA-L !!


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PostPosted: 16 May 2009, 00:08 
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Catalizatorul ala e pus acolo pentru protectia mediului, nu de altceva. Rezistenta la evacuare e destula ca ramane finala si cotul de la downpipe din turbo. Am sa fac lucrarea si revin cu impresii. Am remap facut.

Si frate, decat sa dau nu stiu cate milioane pe un catalizator nou, prefer sa pun teava. Cu uleiul schimbat la 10mii km si grija turbina mea cu geometrie fixa va avea o viata lunga, sunt convins.

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PostPosted: 18 May 2009, 01:50 
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Asa e domne'...eu nu inteleg pentru ce se mai face atata inginerie in facultati si tin astia pe la fabriciile astea de masini atatia ingineri....ar trebuii sa-i trimita la sapa ca fac numai prostii...
Ca ultim raspuns, ca e clar ca nu se poate, nu esti nevoit sa dai milioane pentru ca e clar ca nu-l schimbi de nevoie ca ar fii infundat sau iti face probleme. Il schimbi pentru ca ti se pare ca e mai inedit si original si ca te simti mai puternic stiind ca ai facut asta.
Banii tai, masina ta, deciziile tale... personal as opta pentru un remap mai considerabil ( +40 BHP minim) la motorizarea ta, pt ca ce ai tu nu se numeste remap, se numeste sprint diesel :naughty: si nu se compenseaza cu 3 cai de la teava ta.
Parerea mea....
Bafta


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PostPosted: 18 May 2009, 11:41 
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Remapul e de la 105 cai stock la o masina cu 190mii km. Nu stiu cine ti-a povestit tie de +40cp (minim, auzi) la motor de 1.9, dar nu as vrea sa imi softeze ala masina.

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PostPosted: 18 May 2009, 21:44 
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Am mai citit cate ceva pana fac rost de teava de 60mm diametru :

With turbo exhausts, there is no scavenging effect downstream of the turbo, so you want the least amount of backpressure after the turbo for the maximum performance and efficiency. A turbo exhaust should have the highest energy differential across the turbo (the exhaust gasses are also hot and have a lot of energy) to get the turbo spooled up, and the least backpressure and high velocity exhaust gases after the turbo. This is because a turbo gets its energy by a pressure ratio. Image a waterwheel: you want the pressure highest before the waterwheel and lowest after the waterwheel to give it the most energy.

How much power is released by putting a straight pipe exhaust on a TDI? First, remember that total power is the area under a power curve, not just peak power. You may not gain much peak power with only an exhaust change but the total amount of power will increase. Also remember that an exhaust is a basic supporting mod for any future modifications such as a chip, larger turbos, fuel nozzles, etc. A TDI diesel is throttled by fuel and uses a relatively small turbo with computer controlled fueling. Peak power may not go up much but combined with chip tuning, it should increase response and area under the power curve, and let any further mods reach their full potential.

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PostPosted: 19 May 2009, 10:24 
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cristian_tm Quote:
Catalizatorul ala e pus acolo pentru protectia mediului, nu de altceva. Rezistenta la evacuare e destula ca ramane finala si cotul de la downpipe din turbo. Am sa fac lucrarea si revin cu impresii. Am remap facut.

Si frate, decat sa dau nu stiu cate milioane pe un catalizator nou, prefer sa pun teava. Cu uleiul schimbat la 10mii km si grija turbina mea cu geometrie fixa va avea o viata lunga, sunt convins.

EU TIN FOARTE MULT LA MEDIUL IN CARE TRAIESC, DECI DACA VREI FACEM CHETA SA ITI LUAM UNUL NOU, NUMAI LASA-L ACOLO

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