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DaciaClub - Forum Dacia > Dacia Logan > Imbunatatiri - Dacia Logan
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P-A-C-O
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IRONICK
QUOTE(Logan_Stepway @ 26 Jul 2011, 20:19)
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Mai degraba ai este interesanta intaritura ... si reno ala mic (Wind) are breatele alea. Pe mine ma scote din sarite caroseria prea felxibila de la Logan. Se transmite orice gropita, nu exista deloc rigiditate. Un proiect viitor de imbunatatire ....
QUOTE(LuluMOB @ 24 Jul 2011, 10:28)
Ai verificat directia vantului?  rolleyes.gif Eu am scos 4.5 pe 135 km cu masina nemodificata aero
Bre, cel mai mic consum pe drumul ala a fost de 4.8% in stil eco! Fara AC! Nu ma intereseaza valoarea in sine, ci ca este in scadere si se poate face ceva pentru Logan sa scada consumul la drum lung. Ceva ce puteau sa faca si aia din fabrica la costuri infime cu efect la client.
QUOTE(IRONICK @ 23 Jul 2011, 21:30)
6.0% la traseu de peste 2000km
Acum 5.8%. Pana sa ajung la traseu montan (inclusiv traseu pe drumuri forestiere) aveam 5.4%.

VW si Lexus
YRX
Eu am facut o medie de 6,4 pe aprox 800 de km de drumuri de munte. De data asta n-am mers eco deloc, am filtrul de aer de anul trecut si parca si injectoarelor li s-a facut de un schimb. Le scoatem pe cele noi de la naftalina.... biggrin.gif
Ironickule, 4,6 e bine rau, dovada ca usor-usor artificiile incep sa se adune.
IRONICK
Adevarul este ca acum am finalizat si adaugat cele mai multe.
- deflectoare pentru rotile fata cu gaura pentru racire frana si care merg inca ~6cm peste scut
- carenaje in lateralele rezervorului, dar care reduc turbulentele si in zona prinderilor de sasiu
- deflectoare roti spate mai mari decat cele de fabrica, fara sa afecteze racirea
- o buza prinsa de puntea spate, care urmareste rezervorul si intr-un anumit unghi, astfel incat la rulaj cu x persoane si bagaje sa aibe unghiul corect si sa "apuce" aerul
cristic1982
QUOTE(IRONICK @ 2 Aug 2011, 11:02)
Adevarul ca acum am finalizat si adaugat cele mai multe.
- deflectoare pentru rotile fata cu gaura pentru racire frana si care merg inca ~6cm peste scut
- carenaje in lateralele rezervorului, dar care reduc turbulentele si in zona prinderilor de sasiu
- deflectoare roti spate mai mari decat cele de fabrica, fara sa afecteze racirea
- o buza prinsa de puntea spate, care urmareste rezervorul si intr-un anumit unghi, astfel incat la rulaj cu x persoane si bagaje sa aibe unghiul corect si sa "apuce" aerul
*



Suna interesant, pe cand niste poze cu toate modificarile tale?
IRONICK
Lotus Evora

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IRONICK
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IRONICK
Tot aerodinamica este si asta ...


http://delofted.com/adams-golf-speedline-drivers/
B!ll
Buna ziua!
Am vazut ca toate Loganurile noi au montate din fabrica deflectoare la scut si rotile spate. Al meu e din sept 2005 si vreau, dupa tot ce am citit mai sus, sa-i montez si eu.
Am fodst la un dealer si mi-a spus ca cel de fata costa cam 350 ron dar nu il au. Am gasit la Best Auto doar de Sndero dar cred ca nu seaman cu bara mea veche.
A vazut cineva prin Buc asa ceva pentru Logan?

Cu multe multumiri si scuze!
IRONICK
QUOTE(B!ll @ 12 Aug 2011, 14:07)
Am fost la un dealer si mi-a spus ca cel de fata costa cam 350 ron
Asta se pare ca este inca o bataie de joc marca Dacia! Cine este dealerul ala nesimtit care il vinde cu pret dublu?
B!ll
Da... trebuia sa precizez de la inceput: Meridian, pe bulev. Mihalache (Militari). Eu am intrebat la receptie service. Aveau o suta de masini noi in curte si toate aveau.
By the way deflectoarele de roti spate se prind cu piulite pe doua suruburi sudate pe capatul pragului.
Eu va trebui sa gauresc din pacate.

Si da, ai dreptate, cel de Sandero costa la Best auto 130 + transport
adiya
Maniu - Meridian vest
Puteam ghici fara probleme ca ei erau...
IRONICK
QUOTE(adiya @ 15 Aug 2011, 21:48)
Maniu - Meridian vest
Puteam ghici fara probleme ca ei erau...
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Si eu al fel.
QUOTE(B!ll @ 12 Aug 2011, 15:32)
Si da, ai dreptate, cel de Sandero costa la Best auto 130 + transport
Nu il pune pe cel de Sandero ca este mai mic si din cauza ca este pus mai in spate ca sa se incadreze "vizual" parca nu are acelasi efect. Gasesti codul pentru cel de berlina tot pe topicul asta.
QUOTE(B!ll @ 12 Aug 2011, 15:32)
By the way deflectoarele de roti spate se prind cu piulite pe doua suruburi sudate pe capatul pragului. Eu va trebui sa gauresc din pacate.
Mai este o solutie! Eu am cumparat din Brico tabla zincata de 2mm, este fel de profil in forma de L (latura mica de 50mm si latura mare de 20, daca imi amintesc bine), cu mai multe gauri in el si pe latura mica o gaura de 10 parca. Cu el te prinzi de surubul de la punte cu inca o piulita si pe urma atasezi deflectorul de el. O sa il indoi mai mult si trebuie sa tai din el ca este prea lung. Imi pare rau ca nu am facut poza la al meu.

Cateva poze pentru coletie ....
B!ll
Scuze ca raspund asa tarziu dar am probleme cu net-ul.

Multumesc pentru informatia legata de Sandero, am sa recitesc topicul sa vad unde am scapat eu codul si sper pana la urma sa-l gasesc pe la vre-un magazin. Am sa anunt.
Fac zilnic 90 km in afara orasului si orice poate scadea consumul se va amortiza destul de rapid.
IRONICK
http://www.daciaclub.ro/index.php?showtopi...dpost&p=2469466

Codul pentru deflector: 960153226R [Pret la Dacia 29,38 Euro fara TVA (~157RON cu TVA)]
B!ll
Multumesc foarte mult pentru sprijin si promptitudine! Respect!

Am sa astept ziua de salariu si sper sa gasesc si deflectoarele roata spate in acelasi timp.

Pasul urmator ar fi pinionul de a 5-a dar asta este pe alt topic.
IRONICK
Chevrolet Malibu Engineers Break Wind in Name of Fuel Economy

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Some of the improvements, quantified:

11 counts: Outside rearview mirrors are specifically designed to deflect wind without “upsetting” the airflow
10 counts: Rounded front corners – from the bottom of the fascia up through the headlamps – help air flow smoothly along the Malibu’s body sides
Seven counts: Shutters in the lower grill opening on select models open and close automatically to maximize aerodynamic efficiency. This increases cooling airflow to the engine under certain conditions, such as under high engine loads at low speeds, and reduces aerodynamic drag when extra cooling is not needed.

Those are 28 counts of the total, all of which result in "up to 2.5 miles per gallon more on the highway."

Nu ca as avea incredere in caruta americana, dar macar aia fac ceva, nu ca astia de la Renault.
P-A-C-O
QUOTE(IRONICK @ 17 Aug 2011, 15:30)
Seven counts: Shutters in the lower grill opening on select models open and close automatically to maximize aerodynamic efficiency. This increases cooling airflow to the engine under certain conditions, such as under high engine loads at low speeds, and reduces aerodynamic drag when extra cooling is not needed.

ar fi trebuit sa umble si la "gura" aia de sus... bine nu acum, ci in faza de proiectare happy.gif

PS: ce dracu' i-apuca pe americani de se gandesc la "fuel economy"?... probabil ca nu mai au loc sa puna rezervoare asa mari laugh.gif
IRONICK
Pai de obicei la aia se umbla, ca sa arunce mai bine aerul peste capota. Dar cum sunt americanii, ei fac totul pe dos.

PS. Febra hypermiling ... tongue.gif

Brabus Mercedes-Benz SLK-Class

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Honda-CR-Z Mugen RR Concept

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mysh
Salut!@GBi: unde ai gasit acele bavete pentru logan care se pun in fata rotilor spate ?
IRONICK
Volvo S60 R-Design

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<span class='edit'>21 Aug 2011, 23:09:</span>
Lexus GS 350

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<span class='edit'>21 Aug 2011, 23:32:</span>
QUOTE(mysh @ 21 Aug 2011, 14:03)
Salut!@GBi: unde ai gasit acele bavete pentru logan care se pun in fata rotilor spate ?
*
O solutie mai simpla este sa le faci dintr-un cauciuc mai gros (5mm) si sa le dublezi cu policarbonat (nu pe toata suprafata).
GBi
QUOTE(mysh @ 21 Aug 2011, 14:03)
Salut!@GBi: unde ai gasit acele bavete pentru logan care se pun in fata rotilor spate ?
*



Le gasesti la orice repezentanta Dacia, numai ca sunt cam scumpe 45 lei/buc, iar cu prinderea am rezolvat cu silicon nu ingauresc tabla in zona aia sensibila la apa si altele ...
IRONICK
Sincer, nu stiu cum iti rezista cu silicon. La iarna in mod sigur o sa ramai fara ele.

Si asta vine din experienta cuiva (nu eu) care le-a prins (deflectoare custom made) inclusiv de prag cu o piesa de plastic pentru rezistenta mai mare. A dat chiar si cu antifon pe deasupra.
P-A-C-O
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IRONICK
QUOTE(Logan_Stepway @ 22 Aug 2011, 08:39)
...
Nu prea inteleg ce legatura au pozele tale cu loganul ... blink.gif Mai multe detalii?

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IRONICK
Toyota Camry

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25 Aug 2011, 11:51:
Ferrari 458 Spider

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AR-18-MOS
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user posted image
IRONICK
QUOTE(AR-18-MOS @ 25 Aug 2011, 15:20)
04.gif
Te joci cu primejdia!
YRX
Ala e ornament...
Poate va scapa si o poza cu noul Logan, ca am auzit ca ar fi un munte de aerodinamica... icon_mrgreen.gif
IRONICK
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QUOTE
Aerodynamics: Taking the drag out of aerodynamics
New benchmark for cars with station wagon rear end: cd = 0.26

An outstanding drag coefficient of cd = 0.26 places the new B-Class at the forefront of its market segment. With the optional ECO Technology package, which will be available at a later date, the five-door B-Class even achieves the world-class aerodynamic credentials of the E-Class Coupé, attaining a drag coefficient of cd = 0.24 which is nothing short of sensational for a vehicle with a station wagon rear end. In practical driving, aerodynamics have a crucial influence on fuel consumption: an improvement in the cd value of just 0.01 results in fuel savings of up to 0.4 litres per 100 kilometres at a speed of 130 km/h.
"A whole range of measures were necessary in order to attain the excellent drag coefficient of cd = 0.26," explains Dr. Teddy Woll, Head of Aerodynamics at Daimler AG. "Apart from an aerodynamically efficient basic design, these include numerous optimisation measures on points of detail, such as the air flow around the front wheels, the underbody design and the flow of cooling air."
Designers and aerodynamicists worked closely together. Aerodynamically efficient lines are demonstrated by the exterior mirrors with braces, for example. The low height of the shoulder on the A-pillar accompanied by optimised A-pillar geometry also contributes to the good aerodynamics. The entire front apron is sealed, including special seals fitted on the headlamps, for example. The large roof spoiler at the rear provides for defined flow separation.
Flow losses at the front wheel arches have been reduced substantially with the aid of innovative serrated wheel spoilers at front and rear - patent pending -, slots in the wheel arches and optimised hub caps. These measures result in improved wind flow around the wheel arches.
Equally comprehensive measures have been undertaken to design the underbody along aerodynamic lines. The main floor panel features extensive cladding up to the rear wheel arch, followed by additional cladding of the rear axle. The rear silencer has also undergone aerodynamic optimisation.
The improved cooling air flow by means of an adjustable radiator shutter which is familiar from other Mercedes models now features on the basic petrol-engine model in the B-Class. This feature enables infinite adjustment of the air flow through the engine's cooling module and the engine compartment by means of a circular louvred shutter installed in parallel with the fan. When there is no special need for cooling air, the shutter is closed. This improves the aerodynamics and reduces fuel consumption.
The ECO Technology package, which will be optionally available for all versions of the B-Class, incorporates additional optimisation measures designed to further reduce drag. These include lowering of the body, the sealing of joints at the rear window and the cladding of chassis components at the rear axle.
The aerodynamics of the new B-Class were optimised at an early stage in the development process by means of complex computer calculations and flow simulations. Over 275,000 CPU hours were required for the purposes of digital flow simulation. Models and prototypes spent around 1100 hours in the wind tunnel for measurement purposes.


QUOTE
Eco Technology package reduces Cd to 0.24

An Eco Technology package will be optionally available which incorporates additional drag reduction features including:

    ride height reduced
    rear window joints sealed
    aerodynamic cladding added to rear axle

With this package, the B-class's Cd drops to just 0.24.


QUOTE
Key aerodynamic features of the new car are:

    aerodynamically efficient exterior mirrors with braces
    low body shoulder at the A-pillar and optimised A-pillar geometry
    sealed front apron, including special seals fitted on the headlamps
    large roof spoiler at the rear defines flow separation
    serrated wheel arch spoilers, optimised arches and wheels
    sophisticated aerodynamic underbody


QUOTE
Innovative serrated spoilers at the front and rear wheel arches (above) combine with slots in the arches and optimised hub caps to reduce drag around the wheel arches. Daimler has a patent pending on the serrated spoilers.

The main floor panel features extensive cladding up to the rear wheel arch, followed by additional cladding of the rear axle. The rear silencer has also undergone aerodynamic optimisation.

An adjustable radiator shutter features even on the basic petrol-engine model and enables infinite adjustment of the air flow through the radiator and the engine compartment. The shutter closes when cooling air is not needed, reducing drag.

Ampt
Sper sa urmareasca si cineva de la Dacia topicul acesta si daca se poate acela sa nu fie portarul ! wink.gif
IRONICK
radmasa.gif radmasa.gif radmasa.gif

26 Aug 2011, 13:37:
Poza la o rezolutie mai buna:

http://1.bp.blogspot.com/-BIUvzV_X0aQ/Thrk...s-w-246-321.jpg
GBi
Nemti astea care este, nu are ce face radmasa.gif "Models and prototypes spent around 1100 hours in the wind tunnel for measurement purposes."
Sa vina la Dacia sa vada cum se rezolva toata treaba in 15 minute si rezulta un sifonier(logan) cu 4 roti, care daca ai vant din fata iti mai ia un litru + la consum sofer6.gif
ageana
Da, dar si cand ai din spate esti precum un velier, consum sub 4% la 110 kmh. biggrin.gif
Ar trebui inventat un serviciu care sa-ti spuna directia curentilor de aer pentru diverse rute. Sa stii cand sa pleci de-acasa si cand nu. laugh.gif
IRONICK
QUOTE(GBi @ 26 Aug 2011, 14:09)
Sa vina la Dacia sa vada cum se rezolva toata treaba in 15 minute si rezulta un sifonier(logan)

Daca le aratam asta crezi ca rad?

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30 Aug 2011, 12:18:
La Renault se fac prezentari.

http://www.renault.com/fr/lists/archivesdo...rodynamique.pdf
IRONICK
[attachmentid=1627746460] (asta are poze colorate, mai usor de inteles)

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1938, front wheel skirts are added to the Adler-Jaray and a 2.6 % drag reduction is measured.

1954, from wind tunnel research on the GM Firebird I "Dream Car",by enclosing the exposed wheels within fenders,the drag is cut from Cd 0.335,to Cd 0.311 (7.7 % ).

1958, Mercedes-Benz encloses the wheels of it's 2.5-liter Gran Prix Racing car with full body work,and despite larger overall sectional area,drag is reduced 20 % and top speed increased 11 % ( JEEP and HUMMER owners,this applies to you!).

1961, Deutsch / Romani,Panhard C.D. achieves Cd 0.15 ( over D.B.Coupe's Cd 0.18 ),by using fairings behind the wheels.The car hits 127-mph with 60 Bhp.

June 1962, HOT ROD Magazine credits either front or rear wheel skirts with a Cd reduction of approximately 0.02.

1963, Walter Korff ( Lockheed Aircraft ) claims "A smooth,slightly crowned disc out to the sidewall ( MOON EQUIPMENT CO. ),on each side of the wheel, provides a big improvement. Covering the wheels and suspension with an envelope type body is better; smoothly streamlining the envelope is best by far."

1963, Korff estimates open-wheeled Gran Prix car (remember Mercedes?) at Cd 0.75 and 7square- feet frontal area,and CdA of 5.25 square -feet.( this implies that the Mercedes race car,by enclosing the wheels achieved CdA 4.2 square-feet (something also to think about as regards to the 1987 Oldsmobile AEROTECH Land Speed Record Car built on March Indycar chassis).

1963, Korff allows for a 7.6 % drag reduction with use of front wheel skirts in his recipe for a Cd 0.21 car.

1969, R.G.S.White makes no mention of undercar modifications except for the bellypan in his recipe for a Cd 0.24 automoblie.

1982,Pontiac Trans Am Firebird wind-tunnel studies show Larry Shinoda's trick aero wheel-covers trim 0.027 off drag coefficient,compared to a open wheel.

1986, wind tunnel development work for Subaru XT show a drag increase of 5.1 % when tire size is increased from 155 to 185 series radials.Drag is reduced 2.0 % due to "air flaps" steering air over rear tires.Completely flat/sealed wheel-covers show a 2.75 % drag reduction.

1984-1987 HONDA CRX shows jump from 165 to 185 series radials increase drag 9.3 %.
B!ll
Am citit abia azi un post mai vechi (cred ca de la IRONIK) despre utilizarea generatoarelor de vortex. Seamana - acum mi-a picat fisa - cu nazbatiile alea de le zic unii "aripioara de rechin" blink.gif si care se gasesc pe la piese auto, cred ca sunt cativa lei bucata. Oare nu se pot folosi / adapta?

Normal se monteaza pe tavan la 10 cm de inceputul lunetei. Sau poate pe capacul portbagajului in loc de spoiler / deflector sau cum i-o zice?

LE: Proba s-ar putea face intr-zi cu ploaie.
IRONICK
QUOTE(B!ll @ 1 Sep 2011, 13:29)
LE: Proba s-ar putea face intr-zi cu ploaie
Este de retinut doar atat. Sau tot din lipsa de tunel aerodinamic, se revine in antichitate la bucati de sfoara lipite cu banda adeziva.

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IRONICK
Exte bun consumul asta? AC-ul era pornit, si era intr-o usoara urcare, in mod normal sta la 5,9-6,0%.

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IRONICK





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GBi
Difuzorul asta are si rol aerodinamic oare sau numai estetic intrebare.gif

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IRONICK
Are rol identic si la fel ca ala de la Logan de fabrica.
YRX
Bun consumu' Ironick-ule, inainte cam sareai de 7 in conditiile alea nu?

LE: M-am plimbat si eu putin pe la munte si din nou cel mai bun consum l-am scos pe DN1, ramane drumul pe care scot o medie incredibila. Sa fie de la asfalt, de la mersul extra-constant, nu stiu. L-am facut si la deal si la vale.
A, si filtrul de aer jegos ~ 0,2 l/100 km
P-A-C-O
QUOTE(AR-18-MOS @ 25 Aug 2011, 15:20)
user posted image

se risca careva la un sondaj sa vedem cati membrii de pe forum au montat acest plastik made in turkey? ... laugh.gif

apropo, cat mai e "reperul" respectiv? rolleyes.gif
IRONICK
QUOTE(Logan_Stepway @ 5 Sep 2011, 23:09)
apropo, cat mai e "reperul" respectiv?  rolleyes.gif
*
esti offtopic!

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6 Sep 2011, 15:43:
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Pana si Amarok are deflectoare la rotile din fata, iar Duster, nu. Cine are ochi sa auda .. bine.
vi_escu
Nu au presupus deplasarea dusterului cu o viteza la care deflectoarele devin eficiente biggrin.gif

Cred ca echiparea "in serie" cu deflectoare precum si cu niste panouri care sa inchida anumite scobituri (aparute dintr-o proiectare aiurea) de pe sub masina nu ar creste pretul cu mai mult de 5-600 lei. Si asta nu cred ca poate afecta negativ vanzarile dacia, ba din contra avand in vedere beneficiile aduse.
P-A-C-O
QUOTE(IRONICK @ 6 Sep 2011, 11:19)
Amarok are deflectoare la rotile din fata, iar Duster, nu. Cine are ochi sa auda .. bine.

ce-ti mai place si tie sa "umfli" Dusteru'.... laugh.gif
IRONICK
Pai Amarok sta mai prost la capitolul aerodinamica din cauza ca nu este carosat complet, are roti mai mari, alta garda, alta suprafata frontala. Pana si oglinzile sunt mai de neam prost, dar ARE deflectoare al rotile din fata.
sobolan
vad poze cu Zonda p-aci si multa fibra de carbon....cata agitatie ca sa mai scadem cu 0,2% din consum.....de fapt,aici se discuta de aerodinamica la general nu doar despre aerodinamica logan-ului....culmea blink.gif
Squirrel
Zonda? Eu credeam ca e Koenigsegg Agera.
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