Help needed with transmission choice vs power! Please Comment. [Archive] - SR20 Forum

: Help needed with transmission choice vs power! Please Comment.


SentraDude
02-13-2010, 11:49 PM
Ok guys... I have done a lot of research and reading but I still need some input on my quest with my current build. I am planning to take my car when I move to Poland hopefully this summer. I am working on putting a "fresh" JDM SR20 with my GT28RS kit on it. We all know that has a potential of putting down a good 320WHP. I have a dilemma now as far as deciding if I really need a B15/P11 transmission or not really. If i had the case welded would that be sufficient enough or should I really be thinking about a B15/P11 transmission at this point? I want this car to be dependable as it will be my DD there. All input is appreciated! Thanks. :biggthump

novadose914
02-14-2010, 12:25 AM
Spend the extra money now and get either the b15 or the p11. get it out of the way now so after you are moved and you feel like making more power you dont have to worry about adding a bigger turbo and a new tranny...

-Wes

Shawn B
03-01-2010, 05:40 PM
P11 for turbo applications. Longer gear ratios.

B15 for naturally aspirated applications.

Make sure you get the "right years" on that tranny, the "new style beefy as hell case" and an LSD.

This post linked below indicates 2000 and 2001 transmissions only. I *think* that is right (?). I just bought mine from GregV and told him I wanted "the beefy B15 tranny." He knows the right years for sure.

http://www.sr20forum.com/driveline-transmission/101560-b15-p11-tranny-why-its-better-than-b13-b14-3.html#post950922

YES, upgrade to the 1) P11 now for long-term reliability. 2) Also get an Andreas Miko Tranny Saver Bracket (inexpensive), and 3) buy a very good quality clutch (I like the ones that GregV offers as a "kit", I've got his Stage 3), 4) Prothane motor and tranny mounts, 5) Redline tranny fluid, and if you are feeling wealthy, 6) throw in a light-weight flywheel to seal the deal.

Andreas Miko Tranny Saver Bracket: http://www.sr20-forum.com/naturally-aspirated/11706-tranny-brackets-sale.html

GSpec (Greg V) clutch kits: http://gspec.com/c-30-transmission.aspx

Then you will have a near "bullet-proof" tranny/clutch combo that will last.

I'm going VE (when funds permit) and I did everything on my "list" above in anticipation of the new motor.

With my simple bolted-on OEM DE, I have broken that damn B13 tranny three (3) times. F*ck that tranny. The third time it broke, I did the above "remedy" which includes every single thing I could find (lots of reSearch) to make my transmission as strong and reliable as possible.

You do not want your tranny dying in freakin' Poland.

Hope that helps.

10psigti
03-04-2010, 03:13 PM
spec v/maxima trans ftw if you wallet is big enough