what would be the best transmission to put in a b20?? please comment thanks

 

what do you wanna do track daily auto x ? top speed

 

Please place simple tech questions directly into the thread title -- edited.

 

Si/ITR has shortest gearing and lowest ratios.
LS has longest gearing and highest ratios
GSR is a nice middle of the road trans
GSR/ITR are more durable.

 

Depends on what kinda driving your gonna be doing.

 

I'm running a gsr trans on my b18

 

b18 LSD?

 

Most people will agree that an ITR transmission is pretty much the best stock transmission money can buy.

Limited slip is where it's at.

 

x2

 

Agreed. IMO I think for the money a GSR would be the best daily then if your wanting to race a b16 tranny would be best.

 

gsr tranny for highway driving, 80mph ~3500rpm

 

Or you could just put a long 5th gear in a good transmission.

GSR transmissions are junk.

 

B16 w/ls 5th. Or CTR/ITR

 

Its an automatic

 

Then, to answer your question, the best transmission is clearly any manual.

 

Sums it up nicely.

 

I don't race light to light so the longer GSR gears are great for what I do. I bought an abused GSR and replaced 3rd and 4th synchros so I wouldn't say GSR transmissions are junk.

To OP, automatic transmissions are junk any manual would be an upgrade

 

The GSR gear ratios are garbage compared to any of the other variety of b-series transmission I've driven. It feels weird.

And I hope you don't race on the street at all. I don't see why people are so concerned with having short gears. Short gears = faster, period. If you're worried about highway mileage get a longer 5th gear.

 

+1

Just installed a new GSR transmission w/ LS 5th. Less than 2k rpm @ 40mph, and 3k@ 70. The first 3 gears for the GSR could be shorter though.

 

2,000rpms at 40mph? GSR first and second gear must be really long, holy crap.

 

B-series transmission gear ratios: http://www.ff-squad.com/tech/temp/Bgears.htm

 

I meant the 5th gear.