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Downloads » GT Legends » Mods


Porsche 911 Turbo-930-934

File Details
AuthorCrocko 05Size40.07 MB
Added15 December '08Version1.1
Description
In 1974 Porsche introduced the first production turbo 911. Although called simply Porsche 911 Turbo in Europe, it was marketed as Porsche 930 in the USA. With a 3.0L engine producing 256hp, these early cars are known for their exhilarating acceleration coupled with challenging handling characteristics and extreme turbo lag.
In 1975 the new 930 model was launched and this would form the base for the new Group 4 racer, aptly named 934. The displacement of turbo engines are multiplied by 1.4 to get the normally aspirated equivalent displacement, this mean that the 3.0L turbo engine placed the new Group 4 car in the 4000-4500 cc class. When Porsche designed the 930, the competition version was already anticipated and many components like the clutch and gearbox were made much stronger than needed for the 260hp 930, an ingenious way to evade the non-modification rule.
To comply with the regulations, the 934 would have to weigh at least 1120kg. This was easily achieved by removing most of the interior and weight was brought down to 1090kg even with the electric windows still in place. In race trim it was ballasted to 1120 kg. Major modifications to the engine were not allowed, but due to the nature of turbo engines, a higher output is fairly easily achieved. In Group 4 trim the 3.0L engine was good for a tarmac blistering 480hp and equipped with larger valves in 1977 over 550hp was reached.

930 mod includes; 'tuned' 3.0L turbo producing 376hp @ 7750rpm-370ft/lb @ 7000rpm, 4-speed 930 type gearbox.
934 mod includes; 'racing' 3.0L turbo producing 488hp @ 7000rpm-425ft/lb @ 5500rpm, 4-speed 930 type gearbox.

Extra, special thanks must go to;
-YTANGUY for allowing me to use his 911 RSR skin for the 930 mod,
and to 'eric' for allowing me to use his 'Jagermeister' skin for the 934 mod.
-nil020 for providing and allowing me to use his (previously un-released) 934 sounds (please respect his work and keep as a 'GTL only' sound file, thankyou),
-and last, but by no means least, to sunalp2 for the modification to the exhaust, which is now a single outlet only.

A big thankyou to these guys, for without their help and authorizations, I could not release this mod for all to enjoy.

-v1.1-top-speed fix now included. No need to download full mod, if already installed. Please use Top-speed fix to update to v1.1; http://www.nogripracing.com/details.php?filenr=15364 .

Cheers,
Bruce
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VersionReleasedDownloads
1.115 December '082840
1.011 December '08608

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