600hp auto trans with electric valves?

[ismo67]

What electronically controlled automatic transmission has direct fittings to my Lexus LS400 and will handle about 600hp?

I have already PCS controlling the original Lexus transmission and it shouldn't be problem to control for example 6 speed automatic.

Is transmission from Lexus LS430 -05 almost direct bolt on and will handle 600hp?
http://cgi.ebay.com/ebaymotors/2005...sspagenameZWDVW

 

[KDog]

I think you will struggle to find any toyota auto transmission which can handle that much power.
Although having typed that it is torque which kills transmissions not power.
Even if you upgraded all the clutch packs and changed the valve body to limit slip on the clutches I suspect you would struggle to get this power through the transmission for any deccent amount of time.

 

[cribbj]

As Kdog said, Toyota A/T's have not been known for their robustness or handling high power levels very well, however there is a "built" Supra A/T (the A340E) offered by BoostLogic in Austin, TX USA which is used on street/drag cars turning in 1/4 mile times from 9.0 to 10.0 and trapping from 140 to 150 mph. These HP's are from 750 to 950.

I have just had this transmission installed in my 1994 Supra and it has a "very" strong and firm shift - probably too firm for driving in the rain as the rear tires break loose on both the 1st-2nd shift and the 2nd-3rd. It feels like a very strong tranny, and the BoostLogic owner claims to have 25,000 miles on his with no problems.

Here's a link to it:

http://www.boostlogic.com/parts/supra/info_supra_Transmissions.html

 

[ismo67]

As Kdog said, Toyota A/T's have not been known for their robustness or handling high power levels very well, however there is a "built" Supra A/T (the A340E) offered by BoostLogic in Austin, TX USA which is used on street/drag cars turning in 1/4 mile times from 9.0 to 10.0 and trapping from 140 to 150 mph. These HP's are from 750 to 950.

I have just had this transmission installed in my 1994 Supra and it has a "very" strong and firm shift - probably too firm for driving in the rain as the rear tires break loose on both the 1st-2nd shift and the 2nd-3rd. It feels like a very strong tranny, and the BoostLogic owner claims to have 25,000 miles on his with no problems.

Here's a link to it:

http://www.boostlogic.com/parts/supra/info_supra_Transmissions.html

Very interesting like to get one...

Is my LS400 -91 auto axactly as this Supra transmission?
Is mine A341 or A340 ... what differencies?

 

[cribbj]

The A340E Supra box, and your A341E are very similar. Except for 1st gear, the other ratios are the same, and the Supra box has a few additional clutches to handle the power of the 2JZ-GTE vs the 1UZ, but I would think (although I'm not an A/T specialist) that the internals are very similar.

Perhaps you should speak with BoostLogic, and explain what you'd like them to do, and get them to quote a price. Both Kean and Zohair are good people and they're experienced with shipping internationally. The other owner/partner is Chris J. of Performance Motorsports, who specialises in Supra modifications, and who drives a Lexus SC400 with this modified transmission, so I'm sure it can be done.

John

 

[Lextreme II]

Second to what John said. The A340E and A341E have slightly different sensor plugs.

 

[ismo67]

Second to what John said. The A340E and A341E have slightly different sensor plugs.

Just sent an email to Boost Logic if they could make plug & play and high power handling A/T A341E with torgue convertor for my Lexus LS400 -91 and sent that A/T to Finland.

Let's see how is the pricing...

 

[ismo67]

As Kdog said, Toyota A/T's have not been known for their robustness or handling high power levels very well, however there is a "built" Supra A/T (the A340E) offered by BoostLogic in Austin, TX USA which is used on street/drag cars turning in 1/4 mile times from 9.0 to 10.0 and trapping from 140 to 150 mph. These HP's are from 750 to 950.

I have just had this transmission installed in my 1994 Supra and it has a "very" strong and firm shift - probably too firm for driving in the rain as the rear tires break loose on both the 1st-2nd shift and the 2nd-3rd. It feels like a very strong tranny, and the BoostLogic owner claims to have 25,000 miles on his with no problems.

Here's a link to it:

http://www.boostlogic.com/parts/supra/info_supra_Transmissions.html

I have tried to contact via emails but they do not answer.
Does somebody have direct contact email addresses (which are working) ?
Calling is not the first thing to consider from Finland, but I'll call if it is worth of it

Br Ismo

 

[cribbj]

Ismo, please PM me your contact details and email address; I'll be back in TX in 2-3 days and will call them for you, and ask them to contact you via email.

I don't know why you're not receiving responses; they're good guys.

John