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Thread: How Much HP Can a B13/B14 LSD Tranny Hold?

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Posts: 1-10 of 54
2010-10-01 00:30:46
#1
How Much HP Can a B13/B14 LSD Tranny Hold?
This is under turbo due to the fact that the hp limits will be pushed by a boosted vehicle..just wanna know when a b15/p11 becomes a necessity...?
2010-10-01 00:34:09
#2
300whp if u drive ur car hard. If u baby it big time prolly 50whp more. Bgreen ive been threw 2 srock b13 trannies one fully built b13 tranny and had to rebuild my current p11 a year ago. If u drive hard p11 is a neccessity.

Stratton.
2010-10-01 00:36:12
#3
Also avoid solid discs, a friend of mine with estimated 250whp broke 2, both times 3rd gear, probably because he was using a 4puck unsprung disc with an ACT Xtreme pressure plate...

I beat the crap out of my B13 tranny pushing 283whp/264tq and never had an issue
2010-10-01 01:45:30
#4
what clutch you using beto
2010-10-01 01:46:11
#5
and thx strat..i really thought it was...if your going past a ve with boltons you need a better tranny..ideally looking for mid to high 200's..this is good news
2010-10-01 01:59:54
#6
Damn! I soooo want to do a mild turbo bolt-on setup just to get me over the 200 hp- 200 ft/lbs threshold.
2010-10-01 02:04:00
#7
Originally Posted by beto
Also avoid solid discs, a friend of mine with estimated 250whp broke 2, both times 3rd gear, probably because he was using a 4puck unsprung disc with an ACT Xtreme pressure plate...

I beat the crap out of my B13 tranny pushing 283whp/264tq and never had an issue


more info on this? the other day i was reading the complete opposite

as far as these trans, i go through atleast 2 a year, with around 400whp, p11 isnt in my budget and neither is qr 6speed, i always break on 2-3 shift
2010-10-01 02:16:49
#8
Originally Posted by bgreen
and thx strat..i really thought it was...if your going past a ve with boltons you need a better tranny..ideally looking for mid to high 200's..this is good news


Np bgreen. I suggest a t28 setup and some s series jwt cams and a calum ecu. It will be a basic simple set up for u. It has the potential to get closw to 300whp. That kind of power in a b13 is a feelings hurter to 75% of the boys on the street.

Originally Posted by bgreen
what clutch you using beto


I agree with beto, i suggest a sprung disc. Im a big act supporter and customer, they mke great clutches.

Originally Posted by carfreak240
more info on this? the other day i was reading the complete opposite

as far as these trans, i go through atleast 2 a year, with around 400whp, p11 isnt in my budget and neither is qr 6speed, i always break on 2-3 shift


Do you run a sprung or unsprung disc ?

Stratton.
2010-10-01 02:18:54
#9
Actually it's 175whp. Coming from the man himself, Mike Kojima.

Building the Bulletproof Transmission, Secrets of the Pros > MotoIQ > Magazine Articles

Is there no hope for the owners of the SE-R? Well, although the cure is elusive the situation can be helped quite a bit. The Nissan FWD five speed transmission is exceedingly weak. It can only hold around 170 whp in any sort of long term use and starts to become a very iffy proposition when the power levels exceed 200 whp. The gears are narrow, with third gear being amazingly, dumfoundedly narrow. The shafts are spindly and unsupported with wide spans between bearings which allow gear spreading flex. The transmission case is thin and weak; it cracks and flexes allowing the gears to spread apart reducing the tooth engagement precariously and making thing even more likely to fail.



Mine did fine at 230whp/220wtq, for about a year. I doubt it will live too much longer under boost.

Originally Posted by Tommy
Damn! I soooo want to do a mild turbo bolt-on setup just to get me over the 200 hp- 200 ft/lbs threshold.


Do a simple T25 setup, or go VE
2010-10-01 02:24:42
#10
Originally Posted by STRATTON




Do you run a sprung or unsprung disc ?

Stratton.


im running an unsprung disc, just recently lost third gear on the shift about a month ago
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