How To Get Auto To Handle 500bhp???
Search for someone who builds automatic race trannys. They can be built strong enough to withstand that much HP. I don't believe anyone has gone there yet. Would be interesting to see that set up. If you want the builder for the tranny I can find out. Ric Stephens, the guy in Ari's class, is has switched the tranny in his purple miata to an automatic because he kept breaking manual tranny's. Builder assured him the tranny would NEVER break.
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Thread Starter
Joined: Mar 2001
Posts: 1,778
Likes: 1
From: ROSEVILLE, MN
This post is for my 55 year old brother. He is looking at this config:
mods: Atkins Street Port,
XS T04E Turbo,
AEM EMS,
1200cc injectors,
Racing fuel pump,
Large SMIC,
SS MP,
SS cat-back
I think it would be kool to have a 12second 115mph FD auto out there.
You can make fun all you want. He has a mint '66 Dodge Hemi 4-speed. He knows how to drive a stick. He has a boat load of drag trophies for the Hemi from the 60's.
Thanx for all your help
Ken
mods: Atkins Street Port,
XS T04E Turbo,
AEM EMS,
1200cc injectors,
Racing fuel pump,
Large SMIC,
SS MP,
SS cat-back
I think it would be kool to have a 12second 115mph FD auto out there.
You can make fun all you want. He has a mint '66 Dodge Hemi 4-speed. He knows how to drive a stick. He has a boat load of drag trophies for the Hemi from the 60's.
Thanx for all your help
Ken
It's never fast enough...
Joined: Feb 2001
Posts: 3,760
Likes: 3
From: Miami - Given 1st place as the POOREST city in the US as per the federal government
I think your best bet is to contact a few of the Supra shops that have built auto MKIVs with over 800hp. Being that they are obviously in the import scene, I would see them as a good place to start. I'm sure one of them would at least have info on a shop that would be able to modify, if necessary, an FDs auto tranny.
Good luck.
Good luck.
Rotaryextreme has a T51 Kai turbo kit with his auto. Don't know if it's 500 rwhp, but its probably close to that at the flywheel.
Another option is to put a chevy derived tranny in using an adaptor, like here.

PM me if you need the contact info on this.
Another option is to put a chevy derived tranny in using an adaptor, like here.

PM me if you need the contact info on this.
Isn't there a import automatic tranny building company called "level 10"? I know they sell automatic supra tranny parts, and built them, and I am thinking maybe they did/do automatice rx7 trannys too. Or as stated above you could go with a GM T350 I am sure or something like that, but I don't know how much hp you would lose going through the tranny getting the power to the rear wheels. Plus you would need an adapter.
A very good friend of mine has a 9sec street Supra that has an automatic Level 10 modified transmission in it and it's proven very strong and reliable, I spoke to the guy at Level 10 and he stated to me that the FD tranny can be made just as strong, contact them with what you wanna do and they can help you. BTW, just to let all you out there know, in theory an automatic RX7 with a single turbo will actually be FASTER than a 5speed due to the fact that it won't lose boost inbetween shifts, and also it will leave with boost on the line due to the fact that you can build load an auto tranny, and it will be more consistant. Only problem with this configuration is the whole ECU thing, just my 2cents.
Originally posted by WANKEL POWER
FYI
I've heard some bad stories about Level 10 on the supra forums.......
FYI
I've heard some bad stories about Level 10 on the supra forums.......
Originally posted by RX794
A very good friend of mine has a 9sec street Supra that has an automatic Level 10 modified transmission in it and it's proven very strong and reliable, I spoke to the guy at Level 10 and he stated to me that the FD tranny can be made just as strong, contact them with what you wanna do and they can help you. BTW, just to let all you out there know, in theory an automatic RX7 with a single turbo will actually be FASTER than a 5speed due to the fact that it won't lose boost inbetween shifts, and also it will leave with boost on the line due to the fact that you can build load an auto tranny, and it will be more consistant. Only problem with this configuration is the whole ECU thing, just my 2cents.
A very good friend of mine has a 9sec street Supra that has an automatic Level 10 modified transmission in it and it's proven very strong and reliable, I spoke to the guy at Level 10 and he stated to me that the FD tranny can be made just as strong, contact them with what you wanna do and they can help you. BTW, just to let all you out there know, in theory an automatic RX7 with a single turbo will actually be FASTER than a 5speed due to the fact that it won't lose boost inbetween shifts, and also it will leave with boost on the line due to the fact that you can build load an auto tranny, and it will be more consistant. Only problem with this configuration is the whole ECU thing, just my 2cents.
Thread Starter
Joined: Mar 2001
Posts: 1,778
Likes: 1
From: ROSEVILLE, MN
Originally posted by RX794 BTW, just to let all you out there know, in theory an automatic RX7 with a single turbo will actually be FASTER than a 5speed due to the fact that it won't lose boost inbetween shifts, and also it will leave with boost on the line due to the fact that you can build load an auto tranny, and it will be more consistant. Only problem with this configuration is the whole ECU thing, just my 2cents. [/B]
Ken
Thread Starter
Joined: Mar 2001
Posts: 1,778
Likes: 1
From: ROSEVILLE, MN
Originally posted by DELTA_Rotary Yep there were several people that took level 10 to court because their trannies failed many many times.
Ken
Originally posted by WANKEL POWER
FYI
I've heard some bad stories about Level 10 on the supra forums.......
FYI
I've heard some bad stories about Level 10 on the supra forums.......
Passenger
Posts: n/a
hey man, i know of a place in bloomington that may be able to help you out. they would be able to get almost any type of conversion kit(huge single turbo) possible for your car, or maybe even a j-spec cosmo three rotor engine like mine. give me an e-mail if you are interested. cdubsw5@hotmail.com








