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Da mir letztens schon ein FIAT Mech erzählen wollte das Abarth den Uno Turbo entwickelt hat bin ich etwas "skeptisch" der ganzen Sache gegenüber...
Also dort steht das das Auto von Abarth entwickelt wurde (Innenraum usw. usf.) und der Motor von IHI.
Die hatten den Motor mit 1 Bar Standfest gemacht aber FIAT hat aus Sicherheitsgründen wohl den Ladedruck zurück geschraubt?! FIAT hatte wohl selbst keine Turboerfahrung?!
Hier mal das Zitat:
Uno Turbo History Revisited
Although the Uno arrived in the middle of the “Hot Hatch Era that was the Eighties” – it was in fact de-tuned for production. You can’t say that about any of its rivals now can you! The story goes like this… IHI-Warner of Japan were commissioned by Fiat to design the turbo engine for the Uno, while Fiat/Abarth got on with designing the car. IHI’s experience with the Uno and Fiat was small, and Fiat’s experience of turbo road car solutions was also limited. The engine package was finished first, apart from the Marelli/Bosch engine management & ignition solution. Eventually the system spec was built around a nominal 1bar turbo boost pressure.
When the prototypes were assembled it was clear the whole thing worked very well. Now we don’t know whether it was the risk of needing to extract grannies from tree tops (who’s only sin was to sneeze hard while driving their Uno T). Or the likelihood of successive layers of Uno Ts piling up outside difficult bends. Or component longevity in the face of poor fuel quality and indifferent servicing from mechanics. Or the difficulty in selling more expensive performance Fiat/Lancias if the cheapest in the hot hatch range comprehensively blew them all into oblivion. The precise reasons are shrouded in Fiat mists. Suffice to say it was decided to reduce the performance of the Uno Turbo for production. And the cheapest way to do this was to lower the boost pressure to 0.6bar.
What you have available then is an engine/turbo basically engineered for 1bar operation, but operating at 0.6bar boost. We are going to discuss the ways of safely and reliably putting this back to 1bar.
Da steht auch noch das die ersten Turbo's wohl 1299cc hatten und kurz danach erst 1301cc?!
In 1981/2 Fiat had formed a successful relationship with Warner-IHI of Japan in supplying an aftermarket turbo kit for the US 124 Spider market (Sold in the States by Legend Industries). And IHI were again used as consultants in development of the Uno Turbo. The first Uno Turbos were launched in April 1985. They were priced to compete with the Peugot 205 GTi and Renault 5 GT Turbo.The initial Uno Turbo Mk1 had a 1299cc engine and the first generation Bosch-Marelli engine management systems. If tuning is required these EMUs should be avoided. Amongst other things they were not specifically designed for unleaded fuel. (Note: regarding use of unleaded on the early cars... being turbos the engine and valve seats should take it but the exhaust manifold and down pipes won't. No doubt some of you guys can prove me wrong).
The 1301cc version quickly replaced the 1299cc. On paper it generates the same max power (105bhp) in practice the 1301s are noticeably more spritely and torquey motors. The first generation EMUs continued to be used. (You can quickly spot them by the white sticker on the box at the back of the engine bay). On later EMUs the sticker background colour changes to red, green then black.
The 1301cc Turbo was replaced by the 1372cc unit in 1989 with the introduction of the Mk2 Uno Turbo. For some markets the 1301cc turbo was retained in the new shell until a catalysed version was available.
In the UK the Mk2 Uno T never achieved the same popularity as the Mk1. Its heavier, with a bigger engine capacity and turbo, but lacks the raw tuning potential in the high revving Mk1. All this changes when the mods start anyhow.
Die Daten auf der Seite hauen auch nicht ganz hin oder gab es echt verschiedene Motoren usw. in den einzelnen Ländern? Z.b. die 43er Einlassventile, die es laut Fiat Handbuch auch gegeben haben soll, aber irgendwie lässt sich kein OHNE KAT Kopf damit auftreiben?! Sehr dubios alles, der Nockenwellenhub bei der 1372cc Nocke scheint auch nicht ganz astrein zu sein?!
Noch was anderes, dort steht man kann den Punto GT Motor nehmen und das 6 Gang Getriebe von dem?! Den gabs doch nie mit 6 Gang Getriebe soviel ich weiß?!
Viele Legenden auf einem Haufen?
