Auto Trans HP Limit

Post by **Wangan S13** » Wed Nov 20, 2002 5:14 pm

Has anyone found a point at which the Auto Trans for the KA24E slips due to too much HP? I want to turbo mine, but i don't want to do a manual swap. Also, is the KA24E trans the same as on the 90-95 240sx's?

Post by **Dano** » Wed Nov 20, 2002 5:14 pm

c'mon guys? i have an s14 with auto tranny and also plan on throwin on an nsport kit down the road as soon as i get the $$, wat can stock auto tranny handle, and i was planning on putting a tranny cooler on, it doesnt already have one does it?

Post by **Daunttless** » Wed Nov 20, 2002 5:14 pm

Most people don't waste turbo upgrades on autos. If they do, they have drag transmissions. The manual transmission supports around 400hp, I really have no idea when it comes to the auto. Good Luck!

Post by **Daunttless** » Wed Nov 20, 2002 5:14 pm

Also, yes, the transmissions for the 89-98 are the same.

Post by **96_S14_SE** » Wed Nov 20, 2002 5:14 pm

Ive been meaning to reply to this....

There are a few people running some psi through their engines, and have auto's. One guy in specific (cant rem his name right now) had dyno'd at 240hp to the wheels (300 - 320hp at a 20 - 25% loss) on a bone stock 98 auto tranny. All he had was a Level 10 valve body upgrade, which basically makes the tranny slightly more responcive and efiicient.

edit: here he is also check out the hood struts page.... Look at the main image notice its missing a Master Cylinder hehe Hes got the alarm siren there.

Post by **Wangan S13** » Wed Nov 20, 2002 5:14 pm

do you know where i can buy a valve body upgrade, because i am rebuilding my trans right now.

Post by **Wangan S13** » Wed Nov 20, 2002 5:14 pm

Nevermind, i just went to his site. **** his car is awesome. It must be nice to be rich.

Post by **Wolf240SX** » Wed Nov 20, 2002 5:14 pm

I am running an auto tranny with a 150k on it and I am putting about 250HP to the wheels and the tranny feels fine. I also beat it when I drive it.

Post by **Dano** » Wed Nov 20, 2002 5:14 pm

Wolf, wat kinda 1/4 numbers (if u know) are u puttin out?...j/c

-Dan

Post by **Tony Starks** » Wed Nov 20, 2002 5:14 pm

Would a high stall toque convertor help?

Post by **WDRacing** » Wed Nov 20, 2002 5:14 pm

Yep, a new convertor will do wonders for your 1/4 et's. You'll need a tranny cooler though.

WD

Post by **george** » Wed Nov 20, 2002 5:14 pm

250bhp seems kinda high for that auto tranny, has anyone here done the level 10 build up ?

Post by **bp2ooo** » Wed Nov 20, 2002 5:14 pm

i had an auto with hks hyper, asp pulley, injen cai, catco cat, and top gun direct port nitrous. 100 shot, and my auto was fine, would kick the car sideways in 3rd, but the trans seemed to be ok. i was probably around 250hp, but never actually had the car on a dyno. Car ran a 13.9 at 101

Auto Trans HP Limit

Auto Trans HP Limit

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