Torque convertor for A/T transmission

Zamir370z · 09-22-2011, 06:17 AM

Hi all, I need to know the OEM torque convertor for the automatic transmission can handle up to what horsepower? Thank you

DjSquall · 09-22-2011, 11:42 AM

I think the stock drivetrain will hold up to 500whp. Anything over that is risky

XwChriswX · 09-22-2011, 11:46 AM

It's written somewhere that the 7AT can't handle more than 300wtq. So far its been the hold up for FI people... the top 3 gears cant handle it.

Sibze · 09-22-2011, 11:55 AM

Ya, I think 500 rear wheel is a little much, no?

Isamu · 09-22-2011, 11:57 AM

400~whp is pushing it..

KaienZ34 · 09-22-2011, 12:00 PM

Quote:

Originally Posted by XwChriswX

It's written somewhere that the 7AT can't handle more than 300wtq. So far its been the hold up for FI people... the top 3 gears cant handle it.

UNKNOWN_370 · 09-22-2011, 12:48 PM

From what I've been able to pick up from reqding on several sites and this one, GTM has an aftermarket TQ converter that will hold more for the AT. As well as aftermarket high gear clutches that have been deemed too weak for more than the 400ish rwhp range. The stock tranny will hold up with minor tranny mods. Valve body, converter and high gear clutches. With those mods you can run in the low 500's.

Jamaica · 09-22-2011, 12:55 PM

I am hoping the stock tranny can hold 500whp. With a 1000 miles on so far. No issues after the new tranny. I do have an tranny cooler.

XwChriswX · 09-22-2011, 12:56 PM

Quote:

Originally Posted by Jamaica@UAMotorsports

I am hoping the stock tranny can hold 500whp. With a 1000 miles on so far. No issues after the new tranny. I do have an tranny cooler.

Have you been able to push it in the higher gears... I think that's whats getting people is on the highway, being in 7th cruising, popping it into M mode and 5th gear flooring it... blowing gears...

Jamaica · 09-22-2011, 01:22 PM

Cwis

I mainly use the first five heard in the street. Freeway driving I use 6-7 gears. The transmission upgrade, they add more gears to the higher gears. I havent been able to push on the high gears. Even on the canyon runs I only used the first four gears. I took it down a strip at my work..even in 5th gear pushing over 120, i felt like there was still more to go.

XwChriswX · 09-22-2011, 01:26 PM

Quote:

Originally Posted by Jamaica@UAMotorsports

Cwis

I mainly use the first five heard in the street. Freeway driving I use 6-7 gears. The transmission upgrade, they add more gears to the higher gears. I havent been able to push on the high gears. Even on the canyon runs I only used the first four gears. I took it down a strip at my work..even in 5th gear pushing over 120, i felt like there was still more to go.

Well that's good to hear.

ScGRaceR · 09-22-2011, 01:36 PM

Quote:

Originally Posted by Jamaica@UAMotorsports

Cwis

I mainly use the first five heard in the street. Freeway driving I use 6-7 gears. The transmission upgrade, they add more gears to the higher gears. I havent been able to push on the high gears. Even on the canyon runs I only used the first four gears. I took it down a strip at my work..even in 5th gear pushing over 120, i felt like there was still more to go.

jealous

KaienZ34 · 09-22-2011, 01:38 PM

Drew, so your new tranny has the upgrades in it now?

09-22-2011, 06:17 AM	#1 (permalink)
Zamir370z Base Member Join Date: Sep 2011 Location: Brunei Posts: 24 Drives: Nissan 370Z 2009 (A) Rep Power: 13	Torque convertor for A/T transmission Hi all, I need to know the OEM torque convertor for the automatic transmission can handle up to what horsepower? Thank you

09-22-2011, 11:46 AM	#3 (permalink)
XwChriswX WFLYIDNNE Join Date: Jul 2009 Location: In The Fastlane Posts: 50,648 Drives: 02 GDB WRX Rep Power: 451	It's written somewhere that the 7AT can't handle more than 300wtq. So far its been the hold up for FI people... the top 3 gears cant handle it. __________________ Bonnie - Stage 2, Audio build coming this fall! R.I.P. Abby 3/29/10 - 3/30/14

09-22-2011, 01:38 PM	#13 (permalink)
KaienZ34 A True Z Fanatic Join Date: Oct 2009 Location: LA. not L.a. Posts: 21,652 Drives: Z34 Tour/Sport Rep Power: 177	Drew, so your new tranny has the upgrades in it now? __________________ *"These Violent Delights Have Violent Ends"* http://www.the370z.com/members/kaienz34-albums-z34.html

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09-22-2011, 11:42 AM	#2 (permalink)
DjSquall A True Z Fanatic Join Date: Apr 2010 Location: Tottenham, ON Age: 36 Posts: 1,340 Drives: My first car Rep Power: 22	I think the stock drivetrain will hold up to 500whp. Anything over that is risky

09-22-2011, 11:55 AM	#4 (permalink)
Sibze A True Z Fanatic Join Date: May 2009 Location: Ontario, Canada Posts: 16,202 Drives: In your way Rep Power: 63	Ya, I think 500 rear wheel is a little much, no?

09-22-2011, 12:48 PM	#7 (permalink)
UNKNOWN_370 A True Z Fanatic Join Date: Jul 2009 Location: ny'r livn in tx Posts: 8,687 Drives: well over 130m.p.h. Rep Power: 14857	From what I've been able to pick up from reqding on several sites and this one, GTM has an aftermarket TQ converter that will hold more for the AT. As well as aftermarket high gear clutches that have been deemed too weak for more than the 400ish rwhp range. The stock tranny will hold up with minor tranny mods. Valve body, converter and high gear clutches. With those mods you can run in the low 500's.

09-22-2011, 12:55 PM	#8 (permalink)
Jamaica A True Z Fanatic Join Date: Mar 2010 Location: SoCal Posts: 15,362 Drives: Under boost Rep Power: 73	I am hoping the stock tranny can hold 500whp. With a 1000 miles on so far. No issues after the new tranny. I do have an tranny cooler.

09-22-2011, 01:22 PM	#10 (permalink)
Jamaica A True Z Fanatic Join Date: Mar 2010 Location: SoCal Posts: 15,362 Drives: Under boost Rep Power: 73	Cwis I mainly use the first five heard in the street. Freeway driving I use 6-7 gears. The transmission upgrade, they add more gears to the higher gears. I havent been able to push on the high gears. Even on the canyon runs I only used the first four gears. I took it down a strip at my work..even in 5th gear pushing over 120, i felt like there was still more to go.