Just curios

catken · February 11, 2012

I was just curios to know why GM does not have their engine tuned at the factory to obtain their optimum performance. Would it not be in favor to do so. I always thought what performs best, sells best.

RAK80 · February 11, 2012

Probably has alot to do with the life expectancy of the engine and the drivetrain.

Morgan1986 · February 11, 2012

I know also with the diesle engines with those chips you can get better fuel econ and better power at the same time . I personaly think its gas companyies paying off the auto makers to make vehicals less effieceint .

GMstrong · February 11, 2012

I think its about dependabilty and somewhat the life of the motor life said above.But its like a shift kit they actually help the trans and do indeed extend the trans life since they like firm shifts,and have unbinded shifts.

txab · February 11, 2012

Probably has alot to do with the life expectancy of the engine and the drivetrain.

This ^^^^^^

I know also with the diesle engines with those chips you can get better fuel econ and better power at the same time . I personaly think its gas companyies paying off the auto makers to make vehicals less effieceint .

Not this ^^^^^

Having torque management applied saves the drivetrain the way GM sees it.

waumo1 · February 11, 2012

EPA

Carder09 · February 11, 2012

Yeah, looks as if auto makers try to make it best of both worlds, performance with dependability , if you look into it more they do give you a choice of a 4.8, 5.3, and a 6.2. Your best bet on performance would seem to be the 6.2 while your less performance could be the 4.8 with the 5.3 about mid. All great reliable trucks from what I have seen and heard from members here. Oh, if you want a performance truck, order the new C-19 supercharged chevy

chakis24 · February 12, 2012

whats good performance for you isnt for someone else. they try to meet in the middle while also making the trucks dependable (less breakdowns in the warranty period = money saved).

Morgan1986 · February 12, 2012

I am not 100 percent how chips work . I know my dad has a f350 year 2000 diesiel . he put a chip on it with 3 modes . econ, tow and somthing eles . Its a manual truck . and he loves it he says he gets better fuel milage and more power . nonthing to do with torqe manegment since its a manual .

catken · February 12, 2012

Probably has alot to do with the life expectancy of the engine and the drivetrain.

Not sure exactly what you mean, could you please elaborate.

00Silverado4x4 · February 12, 2012

EPA

This would be my guess too. Yes performance tuned engines would be great from the showroom floor but all vehicle manufacturers also have federal mandates to meet as well. Performance based tunes wouldn't be meeting emission & mpg requirements as easily I would think. At least you are still allowed to get tunes after you purchase a vehicle.

chakis24 · February 12, 2012

Probably has alot to do with the life expectancy of the engine and the drivetrain.

Not sure exactly what you mean, could you please elaborate.

think of a turbo. yeah you can increase the psi on the turbo to crank out more power, but now since the turbo is working harder all the time it decreases the life expectancy of the turbo. think running vs walking.

same goes for all the other parts on the vehicle. the harder you make them work the less likely they are to last. you can get around that by engineering better parts, but now your talking more money again. there's a reason the f-150 raptor is 45 grand when you can get a basic f-150 for 20k. and if these manufacturers are going to make any money they cant be having these trucks coming in for repair work all the time during the warranty period.

Morgan1986 · February 12, 2012

Probably has alot to do with the life expectancy of the engine and the drivetrain.

Not sure exactly what you mean, could you please elaborate.

think of a turbo. yeah you can increase the psi on the turbo to crank out more power, but now since the turbo is working harder all the time it decreases the life expectancy of the turbo. think running vs walking.

same goes for all the other parts on the vehicle. the harder you make them work the less likely they are to last. you can get around that by engineering better parts, but now your talking more money again. there's a reason the f-150 raptor is 45 grand when you can get a basic f-150 for 20k. and if these manufacturers are going to make any money they cant be having these trucks coming in for repair work all the time during the warranty period.

its why you desigh the part to go just after warranty like how the big 3 use to operate .

catken · February 12, 2012

Probably has alot to do with the life expectancy of the engine and the drivetrain.

Not sure exactly what you mean, could you please elaborate.

think of a turbo. yeah you can increase the psi on the turbo to crank out more power, but now since the turbo is working harder all the time it decreases the life expectancy of the turbo. think running vs walking.

same goes for all the other parts on the vehicle. the harder you make them work the less likely they are to last. you can get around that by engineering better parts, but now your talking more money again. there's a reason the f-150 raptor is 45 grand when you can get a basic f-150 for 20k. and if these manufacturers are going to make any money they cant be having these trucks coming in for repair work all the time during the warranty period.

its why you desigh the part to go just after warranty like how the big 3 use to operate .

Are you saying that with a tune, that you are more likely to break engine parts.

Morgan1986 · February 12, 2012

Probably has alot to do with the life expectancy of the engine and the drivetrain.

Not sure exactly what you mean, could you please elaborate.

think of a turbo. yeah you can increase the psi on the turbo to crank out more power, but now since the turbo is working harder all the time it decreases the life expectancy of the turbo. think running vs walking.

same goes for all the other parts on the vehicle. the harder you make them work the less likely they are to last. you can get around that by engineering better parts, but now your talking more money again. there's a reason the f-150 raptor is 45 grand when you can get a basic f-150 for 20k. and if these manufacturers are going to make any money they cant be having these trucks coming in for repair work all the time during the warranty period.

its why you desigh the part to go just after warranty like how the big 3 use to operate .

Are you saying that with a tune, that you are more likely to break engine parts.

yes . A tune just basicaly pushes the engine harder .