Thread: High HP transmission mods

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2013-12-01 07:44:22

#31

ashtonsser Online/offline status of ashtonsser is unknown

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I would say 400+ is a good threshhold. Maybe even as low as 350 if you are harsh on it.

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1992 Nissan Sentra SE-R - Fully Built SR20VE, BWS400SX Billet 67mm and much more
JMS Racing tuned to 716whp, 423wtq at 29psi
10.5 @ 149.2mph to date I believe the fastest trap speed SE-R, Much more to come with some changes!

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2013-12-01 07:57:39

#32

Zeek234

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High HP transmission mods

Yeah there is a lot of things involved when I saw on in person hubs, adapter brackets etc.and it's at least 2000 dollar swap if remember correctly

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2013-12-01 08:05:56

#33

Zeek234

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High HP transmission mods

Guess I'll push it till it pops? Lol

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2013-12-04 07:36:09

#34

JimmyRustles Online/offline status of JimmyRustles is unknown

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Originally Posted by Sentra
The Number 1 Destroyer Of Transmissions is Heat- 2 Words-Transmission Cooler- everything else is fantastic, but with excessive Heat, some transmissions like the B13's simply cannot cope with the heat. You want reliablity? Start with a Transmission cooler as the foundation for transmission longevity. Hope this helps!

A tranny cooler will not fix the major design flaws in these transmissions that cause our issues.

Case flex and lack of bracing for the gear stacks are a couple major flaws

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2013-12-04 13:57:27

#35

TheSam

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And the fact the teeth on 3rd gear don't line up properly so they are loaded heavily on the edges, another reason 3rd gear fails so readily.

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2013-12-04 14:24:44

#36

SR20GTi-R

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Originally Posted by BenFenner

Originally Posted by Zeek234
Suggestions? Ideas?
Make the power with revs and low boost to keep the torque low and you should be all set. Rev that thing out to 10.5k or so and you'll make 500 HP that won't destroy transmissions/clutches/halfshafts. Keep the torque curve flat at around 250 ft/lbs. and you're done.

Good luck getting into gear that high in the revs on a B13/B14 box.

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Tired..of the bullshit.

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2013-12-04 14:49:18

#37

Zeek234

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High HP transmission mods

Hmmm interesting, these motors match torque very well with horsepower I would think it would be hard to make 500hp and only 250tq.

I'm just slowly getting in the mod to make big power a few steps at a time, I believe this way it would be best to see and feel the upgrades I've made.
I wish I started a thread 8 years ago when I first started.
I want to make sure the block can take 500-600 power I think of it like tow strap rating, overbuilt for reliability. The only
Other thing I haven't done on these cars is transmission work, otherwise I feel confident.

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2013-12-04 14:56:24

#38

Zeek234

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High HP transmission mods

Then again, having as much if not more money in the transmission is crazy *scratching head* if I was going to to have to go all out on tranny work why not go with a clutch less set up 😋

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2013-12-04 17:41:14

#39

JimmyRustles Online/offline status of JimmyRustles is unknown

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Why is investing a decent amount of money into your drivetrain "head scratching"?

Ive never understood people that blow loads on built motors and keep tossing used B13 transmissions at it to break.

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2013-12-04 18:44:07

#40

Zeek234

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High HP transmission mods

Originally Posted by JimmyRustles

Why is investing a decent amount of money into your drivetrain "head scratching"?

Ive never understood people that blow loads on built motors and keep tossing used B13 transmissions at it to break.

I don't have a problem with investing, just
Looking for which direction to head. Obviously going hand in hand been through stock transmissions, I have a b15 trans that I would like to last. Never modded one and just trying to get a figure for price, then I can decide, what are you using for a transmission? Enlighten me with how you've cleared the hurdle. Also associated cost and effectiveness. There are great ideas here more wouldn't hurt...I know the tranny cooler isnt a save all.

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