[ether_joe]

Driving my 968 today and thinking about about turbos thusly:



Stock 968 turbo S, 305hp/369tq, that's kind of a weird set of numbers for a 3L gasoline engine, huh? I mean isn't hp usually equal or greater than torque in most cars? Especially smaller engines (although I suppose at 3L we are a middle-sized engine, even if only 4cyl)



(Getting my #'s from this page )http://vista.pca.org/stl/968t.htm)



Anybody's thoughts on why the 968 Turbo engine would put out so much more torque relative to hp? I mean usually when torque is that much > hp, you're talking about a diesel. . .



Also - aftermarket 968 turbos - what kind of numbers are people getting?



waaaay down the line I may have to get me one of those. <img src="/forum/images/smilies/968/rolleyes.gif" class="smilie" alt="" />

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[Jason Judd]

My car is similar in that it generates more torque than horsepower...



Dyno results from the rear wheels show 389 lb/ft of torque and 323 horsepower at 1 bar (14.5 psi). It's the type of dyno where you remove the rear wheels and bolt the dyno to the hubs.



I don't know what they would translate to as far as "flywheel" numbers...maybe a 15% increase?



Because of those large TQ numbers...that's one of the reasons we switched to a Porsche Motorsport clutch-type LSD.



My power comes on pretty early and peaks around 6,200 RPM, so I don't usually go much beyond 6,000 RPM on the track.



Jason

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[ether_joe]

[quote name='Jason Judd' date='Mar 10 2006, 07:47 AM']My car is similar in that it generates more torque than horsepower...



Dyno results from the rear wheels show 389 lb/ft of torque and 323 horsepower at 1 bar (14.5 psi). It's the type of dyno where you remove the rear wheels and bolt the dyno to the hubs.[/quote]



that's a lot a lot. <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" /> What it is about our turbos that makes them so torquey?



For example, I'm looking at numbers fora twin turbo 300zx, also 3L but a V6, its numbers are 300/283. http://www.ultimatecarpage.com/frame.php?f....php&carnum=389



Could it be because we have a smaller number of larger cylinders?

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