Chiptuning eines Thesis 2,4JTD 10V

[vlad47]

The chiptuning itself doesn't hurt the clutch, but the driver itself with the chip. You can have a chip and drive normally. But when you are using the potential of the chiped engine more often the clutch has shorter life. The real problem would be if you are driving a fiat, it has the clutch dimensions made right for it's engine, but alfas and lancias are more stronger cars and the diameter of the clutch is much bigger and so can transport much tork without slipping. The best chiptuner for diesel engines I know is Sarkan here from Slovakia, if you come to his place with different car than Italian he wouldn't even speak with you and tell you to go away. Tomas went to him to chip his 10V JTD thesis right yesterday. The result is 185HP. They chiped it to 200, but the clutch was slipping, becuase Tomas has bought some from ebay and nobody knows what a chinese clone it is, but with normal good clutch it could be perfectly working even with 200HP. A good thing would be to mention that he is chipping without changing the original injection times. One result of 20V JTD in Peter's thesis (engine was replaced from Brera because of different turbo and injectors) is 250HP and 500nm.

[DREIFACH-HELIX]

Hallo ram,

Dazu ein kleiner Ausflug in die Physik. Um es mal vereinfacht darzustellen :

Leistung (also hier die Motorleistung) = Drehmoment x Drehzahl. Du willst durch das Chiptuning ja die Leistung des Motors erhöhen. Betrachte die Gleichung. An der Drehzahl kannst Du nicht viel machen, da ist bei allen Dieselmotoren irgendwo bei 4500/min das Ende der Fahnenstange erreicht. Bleibt als zweiter Faktor das Drehmoment. Beim Chiptuning wird also, ganz vereinfacht gesagt, das Drehmoment angehoben und damit dann indirekt (über die Gleichung) die Motorleistung. Dieses höhere Drehmoment muß aber von der Kupplung ans Getriebe übertragen werden und von dort an die Antriebswellen. Es kann also schon sein, daß die Kupplung schneller verschleißt, wenn sie nicht für das höhere Drehmoment ausgelegt ist. Gleiches gilt natürlich auch für das Getriebe selber und die Kreuzgelenke der Antriebswellen.
Nicht umsonst sind z.B. beim 175 PS Diesel die Drehmomente beim Schalter und Automatik laut Papieren unterschiedlich. Der Schalter hat glaube ich 380 Nm Drehmoment, der Automat nur 330 Nm. Eben weil das Automatikgetriebe nicht für höhere Werte ausgelegt ist.
Chipen kann man natürlich, man muß sich aber der Tatsache bewußt sein, daß das auf die Lebensdauer der betroffenen Teile geht.

Gruß, Rüdiger

[vlad47]

Aisin Warner 55-50SN has torque limit 500NM. Also the clutch in manual gearbox has more than 380NM, unfortunately I don't know the final value. I was driving one year with manual, 375NM and overworn slipping clutch (when accelerating with high rpm and releasing the clutch very fast) that has 300 000kms and would be working till today if I don't destroy it by my fault. That's what I was talking that in Lancias these parts are stronger than the original engine values like in Fiat. If you are driving normally and use the engine potential only occasionally there's no problem with chipping.

As said many times before that I'm experimenting with the LPG, here's my result:
http://www.youtube.com/watch?v=OVbo_-eILHA
Everything is stock, the changes and calibrations were made only with LPG.
At this moment I'm thinking of using the original map from alfa GTA (230->250HP) and maybe install the rotrex compressor. The only thing I have to resolve is the compression ratio which is lower on turbocharged engines because of higher pressures (I really don't understand why petrolturboengine chiptuners are ignoring it) because I really would like to have original camshaft.

[barchettaristi]

Hallo ram
Hier mal die Drehmomentkurven von einem seriösen Tuner, mit Tüv, Bescheinigung für Deine Versicherung und wohl auch mit einem guten Gewissen deinem Motor gegenüber.
http://www.wetterauer.de/index.cfm/go/p ... /tm_id/346
Gruss aus Krefeld
Manfred

[vlad47]

Please don't buy these electronic chip modules, never never. It's all a great mistake. It works, but absolutely wrong. It doesn't change any map. It doesn't change or correct any turbo pressures, temperatures, regulators etc. Simply said, the right chip on diesel engine changes everything except the fuel quantity and these cheap chip modules are doing everything wrong. It's a bullshit. It only contains resistors that are added between the sensors and ecu so the ecu reads different ohms from the sensor and thinks there are different conditions and so changes the injection according to them. That's completely wrong. You can see this right from the power and torque curves which are absolutelly the same only in different height, it shows you that only a few or maybe even only one parameter was changed.
If you are interested here you can have a look how the real chip curves from brake should look like:
http://alfatuning.sk/grafy_z_brzdy.php?lang=en

[ram]

Herzlichen Dank für die ausführlichen Meinungen und die nützliche Info! Ihr seid toll !! X(