stock tranny - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mellojoe · 09-04-2004, 08:10 AM

What kind of horsepower levels are you guys putting through to your stock transmission?

Where are the upper limits of horsepower before tranny's start breaking?

5-sp KA tranny.
I'll match the clutch to the power and torque levels.

mellojoe · 09-07-2004, 09:29 AM

Anybody? Every search yields very little... I've heard of levels over 300whp, but that was for an SR20 and a 6-speed from an s15. Everybody says the 5-speed is stronger than the 6-speed, but I don't have any ideas of how much stronger.

I don't plan on ever going to 350whp, but I want to make sure whatever power levels I am at that it will be as reliable as possible.

My axles will be cryo-treated for strength, so that should eliminate them as the weak link...

Steeles · 09-07-2004, 10:50 AM

well think about this.... enjuku's race car that was doing 570+ to the rear wheels used a stock SR 5speed. (basically the same internals as a KA except for 5th gear)

09-04-2004, 08:10 AM	#1
mellojoe Zilvia Junkie Join Date: Jan 2004 Location: ARKANSAS Posts: 518 Trader Rating: (0) Feedback Score: 0 reviews	stock tranny What kind of horsepower levels are you guys putting through to your stock transmission? Where are the upper limits of horsepower before tranny's start breaking? 5-sp KA tranny. I'll match the clutch to the power and torque levels. __________________

09-07-2004, 09:29 AM	#2
mellojoe Zilvia Junkie Join Date: Jan 2004 Location: ARKANSAS Posts: 518 Trader Rating: (0) Feedback Score: 0 reviews	Anybody? Every search yields very little... I've heard of levels over 300whp, but that was for an SR20 and a 6-speed from an s15. Everybody says the 5-speed is stronger than the 6-speed, but I don't have any ideas of how much stronger. I don't plan on ever going to 350whp, but I want to make sure whatever power levels I am at that it will be as reliable as possible. My axles will be cryo-treated for strength, so that should eliminate them as the weak link... __________________

09-07-2004, 10:50 AM	#3
Steeles Post Whore! Join Date: Sep 2002 Location: 7th layer of hell, special pit of anger Age: 49 Posts: 3,785 Trader Rating: (0) Feedback Score: 0 reviews	well think about this.... enjuku's race car that was doing 570+ to the rear wheels used a stock SR 5speed. (basically the same internals as a KA except for 5th gear) __________________ Keeping it Godzira bishes. So I murdered another turbo