lev00221

iTrader: (28)

Hello everyone,
I am the fortunate owner of both an LS400 VVTi 5spd auto and an SC400 VVTi 5spd auto. However, the LS400 seems to have more power from takeoff then the SC400. Is this because of different gearing in the transmission? The respective transmissions have different part numbers and thus I am assuming that the gearing is different. The torque converters have the same part numbers. Is it simply different tuning of the same mechanicals? Has anyone ever tried and LS400 transmission in an SC400?
Thanks in advance for your time.
Luis

MarcusMIA

The VVTi came with a 5 speed auto?

willhickey

iTrader: (1)

i remember seeing a discussion about this on lextreme a couple days ago you could maybe check there

lev00221

iTrader: (28)

Anyone have any insight into the difference between these transmissions?

potatoBBQ

iTrader: (3)

If I'm not mistaken, both the LS400 VVTi and SC400 VVTi use the same A650E transmission w/ the same gear ratios.

1995Lexusc

iTrader: (3)

different gear ratios

93sc3005sp

probly different rear end gears, the 98+ sc400 came with the 3.26 gears which i have swapped in my sc3, from what i understand the ls400 has 3.62 gear ratio, but it could have been changed on the vvti models

v8soarer91

different valve bodies, torque converter, 1st gear ratio.

about the only thing the same is the trans casing and pan

megamax

iTrader: (9)

^^^ is this true??(can someone chime in here) i have a deal on a LS400 early 90 ish transmission.

i was going to use it for my SC400 1994. is this a bolt up affair?? of are they totally different??