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Alfa Romeo 156 RWD?

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Esnyper:
Ilgą laiką ieškausi protingo RWD varianto žiemai, tačiau niekas neįtinka/nepatinka :D

Galiausiai kilo mintis nebežaist su winterbeateriais, o geriau 156'tą per kelis metelius pasidaryti RWD. Padiskutuojam ar iš vis realus variantas ar galutinis rezultatas nesąmoningas? Automobilis būtų skirtas trasai, ne gatvinis.

Kodėl 156?
1. Bazė, mano nuomone, ideali drift'ui.
2. Kėbulo dalys juokingai pigios
3. V6 variklių kainos, lyginant su atitinkamais konkurentais - pigios
4. Yra pagrindas - tvarkinga, nebenaudojama 156'ta
5. BMW nusibodo juodai

Kas po klaustuku:
1. Pavarų dėžė.
2. Galinis tiltas ir važiuoklė
3. Variklio montavimas (imti pigiausią 3.0 V6 24V ir montuot išilgai ar gal bandyti burti su Q4 iš senesnių modelių?)

Kol kas tik pamąstymai, jei viskas ok, reiktų bandyt susidaryti sąmatą ir tada spręsti ar verta. Po sunkaus pirmadienio, tema padiskutuoti, na ir hateriam pasidžiaugt :D

Q4:
idomus variantas, bet priklauso nuo pinigu kiekio
pigiausias variantas butu imti orginalia Q4 vaziuokle su kebulu ir lengvai galima padaryti RWD is 4WD,
tam tinkami kebulai alfos 155, 164, 156, dar lancia dedra/delta integrale, Krekenavoje buvo isbandyta 164-Q4 RWD,
ten orginaliai buna difo blokiruote, vaziuoja smagiai, standartinis 3.0v6 prasukdavo ratus 3-4 begiais, jei reikes konsultaciju skambink 865312448

Esnyper:
Tiesa, realiausias variantas: 3.0 V6 24V iš 164/155 (166?), pavarų dėžė su Q4 sistema ir galine važiuokle iš 156 Crosswagon'o.

Vertimas:

--- Citata ---So I had the 3,0 V6 from 164 including the gearbox which had the terminal for RWD that was just blanked. If I didn’t have this, I would forget the idea. After 1 year of search I found a crashed crosswagon on a scrapeyard. I disassembled the crosswagon according to the ePER and I took all the parts and bits related to Q4. I cut out some of them including their holders and brackets. Than I brought everything to my garage and started with the rebuild. I had to make a new adaptor between the gearbox and Q4 shaft, this is milled from aluminum. The transmission shaft was shortened exactly by the length of this adaptor. In the rush after taking bad measurements I made the driveshaft tunnel too high, at the end it wasn’t necessary…. Everybody makes mistakes. I had to modify the car frame behind the gearbox to fit the parts and I welded the crosswagon brackets there, the same at the rear. The complete rear axle including rear differential and torsen is in the crosswagon located in separate sub-frame. During cutting the crosswagon I dint know it had a different brace (here I don’t understand what the guy talks about so cant translate it exactly  ) so I hade to make one by myself and I welded the crosswagon’s sub-frame to it. I changed the upper wishbones for those from original car as crosswagon has higher ride height and the car looked as kicked from the back. (Again I don’t understand what wishbones he means)

So the main components are in place and now to the control of the Torsen. It was necessary to insert into the power steering a part that gives information about the steering angle of the front wheels according the power steering pressure. Then I placed the torsen ECU and started wiring it. Unfortunately I was working with a quite chaotic system, one wire here, one there….later it showed up that it could be wired in a different way. As I don’t have VDC, I soldered resistors on the ends of some loose wires so that ECU doesn’t show faults. I didn’t modify brakes at all; the ABS is original, ASR is disconnected (this made it a lot easier). And now the best part. Torsen has torque distribution in a straight line 80/20 front/rear but I wanted it opposite way. I made a very simple electrical circuit with primitive logic that swapped the sensor reading from the Torsen pressure sensor and the torque distribution is swapped. In corners the distribution is 40/60 front/rear. After test drive I made some fine tuning via regulation valves.

The rebuild actually wasn’t so much work to do, I think that the Italian guys planned this since beginning but the system wasn’t introduced. Driving – wise I am very happy, I can feel when each axle takes the power in difference to permanent 4x4 where you steer with gas pedal, here it doesn’t work. In winter on ice its fun to slide with the door forwards. On dry you can feel understeer when entering the corner, than it bites into the road and grips and progressively passes to slight oversteer at corner exit when the rear pushes the car on the next straight. It grips like on rails in the corners, but after you pass the limit and the car starts sliding it is not so well controllable, opposite lock has undesired effects; the point is not to cross the limit. I was on the limit few times on the track, cornering is similar like in tilted corners, it grips, pulls, than pushes.
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Q4:
jei desi 3.0v6 motora, tai geriausia butu deti ir deze, reduktoriu nuo 164, nes 156-Q4 dyzeline dezei reiks perdarymo kad prisuktum prie motoro, taip pat negali maisyti galinio reduktoriaus su kito modelio deze del skirtingu reduktoriaus perdavimu,
dar variantas imti visa transmisija ir vaziuokle nuo 3.2v6 alfa 159 ar brera Q4 ;)
o kodel nenori nusipirkti orginalu rwd alfa-75, 90, gtv6?
nes manau, kad pavargsi bekonstruodamas, dar daliu trukumas ir kt.

PiPPas:

--- Citata iš: antanas  2015-06-08 19:44 ---o kodel nenori nusipirkti orginalu rwd alfa-75, 90, gtv6?
nes manau, kad pavargsi bekonstruodamas, dar daliu trukumas ir kt.

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Labai pritarčiau dėl originalaus RWD, nes kažkada ir man buvo tokia mintis kilus, dėl 156 RWD, bet viską sudėjus gavosi kolosali suma ir mintys iškart nuplasnojo į šoną... Be to, ir su Zazu buvau dar pasitaręs, tai atkalbėjo iškart, nepaisant to, kad jam pačiam būtų toks projektas patikęs. 8)

Nepamirškim ir dar vieno niuanso dėl sugriežtėjusių TA ir visokių TA komisijų. Tokį automobilį būtų labai sunku įregistruoti... 8)

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