transmission weight
11-20-2007, 01:55 PM
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its not going to be that much difference. it depends on if you want strength vs. overdrive on the ones listed. why not a 4l80e? it will give you strength and overdrive, though you will lose some power.
11-26-2007, 09:16 AM
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If your looking to go lightweight, your better off going manual. I've held my t56 in place while mating it back to the engine by myself a couple times and I've lifted it off the tranny jack over to a table by myself too. I'd say it weighs no more than 125 lbs.
11-26-2007, 02:51 PM
#10
11-28-2007, 03:06 PM
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So why then, do some people say "the T400s are soooo heavy"? It seems based on these numbers that a 4L is one of the heaviest ones. He's right about not looking at the weight in the trans.; weight should be removed from the motor, then outside/inside of the car such as bumper supports, radio, seats, etc. I have a 4L and (almost) gutted car that weighs 3200 with driver.
11-28-2007, 05:08 PM
#14
Most people are guessing based on BS they saw on the internet.
I see it all the time, A TH400 is so heavy, or my favorite "takes more power to turn".
The people who say these things would usually not be able to identify the transmissions if they saw them and certainly don't build them for racing use.
A TH400 is almost exactly 10 lbs heavier than a TH350. This 10 lbs IS rotating mass.
A 4L60E is probably about the same weight as a TH400. I haven't weighed one, but IIRC a 700-R4 is ~140 lbs and that is pretty close to a 4L60E.
A 4L80-E is a beast, it's heavier, but about the same weight as a TH400 and a Gear Vendors.
The weight of the trans has little bearing unless you're dealing with a full time drag car where every lb counts.
Then there are other things to address internally to reduce weight, parasitic drag, etc.
I see it all the time, A TH400 is so heavy, or my favorite "takes more power to turn".
The people who say these things would usually not be able to identify the transmissions if they saw them and certainly don't build them for racing use.
A TH400 is almost exactly 10 lbs heavier than a TH350. This 10 lbs IS rotating mass.
A 4L60E is probably about the same weight as a TH400. I haven't weighed one, but IIRC a 700-R4 is ~140 lbs and that is pretty close to a 4L60E.
A 4L80-E is a beast, it's heavier, but about the same weight as a TH400 and a Gear Vendors.
The weight of the trans has little bearing unless you're dealing with a full time drag car where every lb counts.
Then there are other things to address internally to reduce weight, parasitic drag, etc.
