I have been contemplating getting a lsd,non lsd, or custom posi trans when i get my auto fully built.Things i would probably do are vb mod,2500 stall tc maybe stronger clutches.
I'm looking for a quick 1/4 mile and street car that is still a daily driver.While doing my research i have come across some information that i will be slower in the 1/4 with the posi.I'm assuming this is because i'm losing power becsause it's going to two wheels instead of one.But on the other hand i would think i would be faster with a posi if tracion was a problem.Also i don't know how driveable it will be on the street with the posi

With a lsd traction would also be better but i don't know if i would be slower in the 1/4.On the streets i think this one is my best option.

Non lsd we all know traction is a problem but it seems the best 1/4 times or with non lsd.

So what do all the maxima.org experts think.

 

so where are the tranny experts?

 

Hopefully someone can correct me if I'm wrong but a LSD isnt going to gain more time in the 1/4 mile. Ok maybe help with traction off the lauch but very little.

**warning** I'm sure you get lot of "do a 5-speed swaps** remarks.

 

The best quarter miles times are with non-LSD units because almost no one has an LSD trans in their car.

That said, if 1/4 mile times are your priority, I wouldn't stress too much about the LSD. At the power level most of us are putting down, it's not much of an issue.

 

Well i have a slipping tranny now so i am looking to upgrade.I'm sticken with an auto i know theres alot of automagic haters.I think i am going to go with a 2000 ae trans which is lsd and beef that up.Is there any other opinions or why a shouldn't go lsd over non lsd?

 

just stick with the LSD, no need to build it up unless you're running boost

 

I am planning on a 3.5 swap next winter.

 

im pretty sure the 3.5 trannys are different from the 3.0 ones. why would you get a built auto tranny and then 5 months later throw it away when you do a swap? why would you even waste your money on getting a built auto tranny instead of just doing a 5-speed conversion...autos are slow.

 

well your wrong the trannys are the same. Thats also a very bold and inaccurate statment saying autos are slow.A built auto is not very much slower if any then a 5 speed.

 

sorry, i thought the 3.5 trannys were different then the 3.0.

how much will a built auto transmission cost?

 

cost depends on what you want done.I figure anywhere from 1000 to 3500$.
I'm still debating what i want to do but i'm staying auto.

 

huh, i figured the cheapest it would be would be atleast $2500.

personally id take a clutch slipping, gear grinding manual over an auto any day. i dont want a car i cant have fun with...thats just me tho.

 

Get manumatic. I have a manumatic, mobiletec stage 2 vb and hayden tranny cooler. The manumatic just makes it infinite better due to control, the vb/tranny cooler make the auto behave a lot more aggresivly.

 

For day to day drivability, its not going to make a difference. I think you are confusing that with welding the differential which is old school before LSD's were available or werent available or straight 1/4 cars.

Does it make a difference? Probably but not much. Unless you are making serious HP where you will be spinning only one tire most of the time, I wouldnt worry about getting it.

 

I'll second that. Even if you can shave some time with an automatic, I'll still never buy one. Boring as snot to drive, never downshift right, yuck. Anything with a "park" gear can stay far away from my driveway.

That, and I'll never understand why anyone would buy a "built" automatic tranny, just blows my mind. Unless you have a Lingenfelter Corvette putting down 1100hp and turning a 1.9s 0-60mph time, I really don't see the need for an automatic transmission.

Also, even if you put in a 3.5L engine, why would you need a built tranny?

 

You would probably be best off to just build the tranny in your car. 2000's had lots of solenoid issues. If you are going to buy a new trans to build, get one from a 97-99 I30. It will have the traction you are looking for, and the drivability for the street. Some of the 99 Maxima's (mine),(Canadian models), also have the good auto. I love the way mine shifts with the Mobiletek VB. I shift it manually all the time, and run the snot out of it with nitrous, and have never had a problem with my trans.

 

This is some good info i'm looking for i thought 2000 ae's had a stronger 3rd gear but was unaware of any solenoid issues. So there were no problems with 97-99 i30 or 99 canadian autos?

My cv joints are shot so i will have to replace my axles and my tranny slips so thats why i'm looking at a factory lsd.Its going to cost the same getting mine rebuilt or buying a used lsd unit that won't need a rebuild.

I would consider the posi unit welding the differential which would affect drivability.