fwd 90-91 tranny differences

[Andrew7dg]

I hope I am not sounding like a jerk by posting this johnson. I just want this to sound informative. I own a N/T eclipse (93) and wanted to do a turbo swap. The thing that is preventing me from doing so is the trans (which I should just go out and find a good FWD trans)

I think this is true in the earlier versions (90-92) like it is in the later (92-94) but
The N/T FWD trans are much weeker then the Turbo FWD transmissions. They fail after 250hp because of thinner and weeker gears used in the transmission. Thats why the performance shops won't rebuild the N/T trans for racing spec. They have a smaller housing so I can understand why you needed a different cluch, the N/T cluch needs to be smaller to fit into the housing. So while it may work right now, later if you ever wanted to make big power, you will need to switch back to the FWD trans or else you will shred the gears.

[Pimpin Dsmstyle]

Originally Posted by Andrew7dg

I hope I am not sounding like a jerk by posting this johnson. I just want this to sound informative. I own a N/T eclipse (93) and wanted to do a turbo swap. The thing that is preventing me from doing so is the trans (which I should just go out and find a good FWD trans)

I think this is true in the earlier versions (90-92) like it is in the later (92-94) but
The N/T FWD trans are much weeker then the Turbo FWD transmissions. They fail after 250hp because of thinner and weeker gears used in the transmission. Thats why the performance shops won't rebuild the N/T trans for racing spec. They have a smaller housing so I can understand why you needed a different cluch, the N/T cluch needs to be smaller to fit into the housing. So while it may work right now, later if you ever wanted to make big power, you will need to switch back to the FWD trans or else you will shred the gears.

There is no reason a turbo trans wouldn't bolt up to your n/t motor unless you have a 1.8 which in any case is trash and you should just forget about anything related to a 4g63T setup. But if you have a 2.0 DoHC 4g63 motor.. n/t and turbo trannies are interchangeable. The clutches are likely different and I do believe the gears are shorter in a N/t which I guess could help acceleration if you don't have any power to begin with. I would guess the internals are cheaper as you stated as well.

Point is that a 1.8 tranny mounts on the other side which is entirely different than anything related to a 2.0 1g motor. If you have a 1g n/t 2.0, you can definitly use a turbo tranny it just wouldn't make alot of sense.