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pile_0_crap
11-09-2004, 01:30 PM
hey guys, this question is for a friend of mine. what kind of wear and tear can you expect if you were to turbo charge an automatic transmissioned car?

QuasarCav
11-09-2004, 01:41 PM
If the power being made is substantially greater you can expect a blown tranny.

It will just slip and slip until you replace it, What car is this on?

bmeier
11-09-2004, 01:58 PM
it is the same thing for auto or manual,

no matter what tranny you use they all have limits, exceed those limits and you will lose your tranny.

for the most part unless you are doing clutch drops or launching really hard from a stop trannys should be able to take the abuse for a while

no9t9
11-14-2004, 08:01 AM
Not exactly the same for manual and automatic.

In automatic transmissions, you use the transmission fluid's shear properties to engage the engine and the gearing. But, in a manual you use the clutch. Totally different systems.

After that, yes... it's pretty much the same. The gears will be subjected to the same added stresses of the extra power.

h22aseller
11-23-2004, 01:01 AM
the auto may wear out a bit quicker than a manual, not because the gears are weaker, but the engagement system is less robust, manual trannies are built with the idea that at some point in time, some dumb ass will stall it (as i have done, so im not being preachy), so therefore the whole setup is a bit stronger, an auto doesn't usually need to account for such an eventuality as power engagement is always smooth.

1-Bar
11-23-2004, 01:06 AM
throwing a turbo on an auto car is not unusual....good ol' brake boosting....Heat is one thing you should think about when boosting auto cars, a tranny cooler would be a good idea to increase the longevity of the auto-tranny.

EK 2.0
11-23-2004, 01:09 AM
Originally posted by 1-Bar
throwing a turbo on an auto car is not unusual....good ol' brake boosting....Heat is one thing you should think about when boosting auto cars, a tranny cooler would be a good idea to increase the longevity of the auto-tranny.


as well as higher quality transmission fluid ie Redline or Torco...and if applicable a shift kit and/or hi-po torque converter...

Skyline_Addict
11-23-2004, 01:10 AM
yeah it is mostly a matter of the durability of the transmission. the manual should be able to withstand the wear and tear better, very significantly especially if you drive the car very hard. otherwise, they are both pretty much the same.

vegas2005baby
11-23-2004, 02:11 AM
an auto tranny will wear out quicker, for the simple reason that auto trannies even if driven normally, under nomral conditions, wear out, the clutch packs in the tranny will eventually wear out, and ofcourse adding more power to the engine will cause more stress on the tranny. Now it depends on what car/transmission it is, but 99% of the time, a manual gear box can hold alot more power for longer then the equivelent auto tranny.

Turbo 350 trannies and some of the old muscle car transsmissions (700r4 aside) will sometimes hold more power then the manual transmissions. some of dodges mid 80s 4 banger auto transmissions can hold more power then there manual brothers i believe.

replacing a clutch is alot cheaper then rebuilding an auto tranny. this doesn't mean you shouldn't boost one tho. auto transmissions do have their advantages, I believe the mk3 turbo supras were faster with the auto then they were with the manual. :)