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longevity with a tune

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Old 01-06-2008, 02:01 AM
  #21  
B.K.
 
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Default RE: longevity with a tune

ORIGINAL: ThumperMX113

ORIGINAL: ShadyNinja

I was wondering how the automatics will hold up with the tuned aggressive shifting
Technically it should last longer. "Rougher" shifts are better for the transmission, the smoth/slipping shifts are what destroys it.
Could you elaborate on/exlain the reasoning here more? Would you say the same for manuals?
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Old 01-06-2008, 02:06 AM
  #22  
Blackhawk
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Default RE: longevity with a tune

ORIGINAL: nate2953

You guys think the tune will limit our chances of seeing 200,000 with our cars?
If you were worried about seeing 200,000 miles on your Stang when you bought it. You should have went with the Honda Accord....[sm=icon_rofl.gif]
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Old 01-06-2008, 02:17 AM
  #23  
07BLACKGT
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Default RE: longevity with a tune

ORIGINAL: exx1976

ORIGINAL: nate2953

Hey has anyone thought about how an aftermarkert brent/bama tune will affect the longevity of our cars? Mine runs slightly rich, wont that lead to problems down the road? I change oil with mobil 1 and a fomoco filter every 3000 and run only 93 octane fuel from shell or bp. You guys think the tune will limit our chances of seeing 200,000 with our cars?
... my winter beater has 140k on it. It's on the second engine and third transmission.. It's a Pontiac,...
I think I found the problem with your car good sir.
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Old 01-06-2008, 08:48 AM
  #24  
wmtheflash
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Default RE: longevity with a tune

ORIGINAL: B.K.

ORIGINAL: ThumperMX113

ORIGINAL: ShadyNinja

I was wondering how the automatics will hold up with the tuned aggressive shifting
Technically it should last longer. "Rougher" shifts are better for the transmission, the smoth/slipping shifts are what destroys it.
Could you elaborate on/exlain the reasoning here more? Would you say the same for manuals?
He's absolutely correct. The reason is heat build up, which eventually causes damage to the transmission. The only reason that transmissions shift smoothly is for comfort, not for reliability. You actually want your automatic to shift as hard and as a quickly as possible.

It's no secret, though, people installing shift kits on older cars have been talking about the benefits for decades. Most consumers would find a hard shifting auto to be too rough, so we get lazy shift autos even in a Mustang GT.

As far as reliability, Ford is willing to sell the Shelby GT with an air intake and a Ford Racing tune as well as a factory warranty. If it caused significant engine problems down the road, then I don't think they'd do it.

American cars are built well nowadays. The warranties are also getting insane. GM offers a 5 year/100,000 mile transferable powertrain warrany and if you're really concerned, then Chrysler has a lifetime powertrain warranty. Ford used to offer a 5 year/100k transferable powertrain warranty on the Focus.
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Old 01-06-2008, 11:16 AM
  #25  
rls82959
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Default RE: longevity with a tune

This is very interesting info.
Right now my shift pressure is +5% - +10%
So +25% is actually better for the transmission?
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Old 01-06-2008, 01:17 PM
  #26  
my77stang
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Default RE: longevity with a tune

just wanted to chime in and say the 3.8 pontiacs (buick motor actually, even though they are *all* GM's) are some of the best motors to ever come outta the general motors camp.

+1 for the ford 300's kicking serious longevity ***

and ALL cars built nowadays will go 200,000 + if you take care of them. the only thing still sucking *** is FWD automatic transmissions (from pretty much all manufacturers) which tend to start puking closer to the 100,000-150,000 mark (they would probably last longer if people ever changed the tranny fluid on some sort of half regular basis)
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