if you use preformance products on diesel engines, why is the horsepower and torque gain greater?[8D]

 

Short answer is because the diesels are turbo'd.

 

Also because Cummins overdesigns most of the engine components, which is why the engine lasts so long. The engine control modules are intentionally set to substantially limit the power that the engine can produce. So my educated guess is that these engines could comfortably put out an additional 25% power/torque. But then it's lifespan would be more comparable to a gasser.... <200,000 miles vs >700,000 miles for a diesel.

 

yes yes yes because their turbo. they way to get more power out of an engine is to get more air/fuel into the engine

 

Obviously the turbo makes the engine more efficient and gives it more power, right off the bat. But does it really make that much difference as far as potential for improvement when using a performance product? If so, how? It seems like you guys are explaining why the diesel has so much more torque than a gasser, rather than why the diesel is affected more by performance products than a gasser.

 

Please explain what you mean by a "performance product". Comparing diesels to gassers is like apples to chimpanzees.

Turboed gas engines will benefit more from aftermarket addons than their normally aspirated brothers will, as well. Case in point, all the rice rockets you see tooling around with double the horsepower of a stock vehicle. Another case, the Porsche sitting in my driveway.(Sorry guys, had to plug my hotrod sometime)A new set of chips ups the torque by 35% and HP by 28%. The nonturbo version only gets 8 %.

 

Is this thread really from June 2005?

 

Guess that's how much attention I pay to things. I was surfing through past threads and thought this was more recent...so replied.

 

HOLY OLD THREAD BATMAN!

 

Good holy spaceballs an the such old thread.