Originally Posted by MissionRx7
(Post 9312145)
Has anyone tried using the Honda S2000 transmission as it can handle high rpm & hp and can also fit within our transmission tunnel. It has to be one of best 6 speed trannys available.
I'm pretty sure the S2000 gearbox can't handle much, definitely no where close to the v160 and probably less than the stock FD. The newer RX-8 gearboxes would be a better option, but the shifter is quite a bit forward. |
I have a 20b FC and FD and they both use the original tranny for the cars. I took out the rear bearing in the FD and the first time I rally slammed it from a standing start, due to torque flexing. You really need to add drivetrain bracing such as Bonzai Racings excellent differential brace. You have to remember that an 800 hp 3rotor is relatively easy to build and that is around what the top 2rotor dragsters are running and you'll never see a stock tranny in one of them. The point is that the instantaneous torque abuse of drag race type driving on a high horsepower car is going to tear the stock drivetrain up however I have never had an issue on the street or a roadcourse, when I wasn't abusive, with either my FC or FD.
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Originally Posted by GT1-20b
(Post 9287235)
It's been quite a long time since I've been on the forum.
A friend/ customer informed me that ppl. were looking for this information. These pics illustrate how the Supra 6 speed box fits within the Tunnel of the Fd. This installation illustrates a 20b on a stock sub-frame. The engine in it's present location sits slightly higher than stock or substantially higher than those using aftermarket sub-frames, and still there is plenty of space. The Tunnel is stock. The PPF. must be replaced w/ a Torque Arm like what the V-8 guys use. A Transmission mount and custom Drive shaft must be fabricated http://smg.photobucket.com/albums/v1...h_P1016136.jpg http://smg.photobucket.com/albums/v1...h_P1016111.jpg http://smg.photobucket.com/albums/v1...h_P1016110.jpg I am looking to get a getrag Supra 6 speed gearbox. I understand that you supply an adapter plate to fit supra gearboxes to FD. Can you contact me please on gillanis@hotmail.com I need few adapter plates Thanks Syed |
transmission
Originally Posted by rotorooter93fd
(Post 9215035)
is the factory fd gear box strong enough for a 650-700hp 20b for street use and tracks on the weekend? I considered a viper t56 but im concerened about getting the gearing right. also I prefer the 5 speed , but not if I have to rebuild it every time i turn around.
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how is the bell housing project coming along RZ?
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Originally Posted by tony94s4
(Post 10636988)
how is the bell housing project coming along RZ?
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Here is another option and a more cost effective one.
T56 adapter plate that will allow you to run the standard GM t56 bell housing with starter . At the same time run any after market GM type flywheel/ clutch combinations 8.5 7.5. etc. The nice future about this option, it opens the door so you can run sprung clutch combos for 8.5 . Cost wise will be half of any other kit or build your own out there. Thank Chip U |
Originally Posted by ChipsMotorsports
(Post 10638117)
Here is another option and a more cost effective one.
T56 adapter plate that will allow you to run the standard GM t56 bell housing with starter . At the same time run any after market GM type flywheel/ clutch combinations 8.5 7.5. etc. The nice future about this option, it opens the door so you can run sprung clutch combos for 8.5 . Cost wise will be half of any other kit or build your own out there. Thank Chip U That's nice but that option wont work for me since my engine is moved back 5 1/2". Gm bell housing is too fat for me. |
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Originally Posted by t-von
(Post 10638934)
That's nice but that option wont work for me since my engine is moved back 5 1/2". Gm bell housing is too fat for me.
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i just picked up a c4 auto from nc transmission in puerto rico bolts right in then im using a ford 9 inch from grannys out of concrete washington good for a 1000 hp
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seems to me like its between a t56 and the getrag then...i know a couple of guys are running the t56, but i've had a difficult time finding someone runing the v160.
Thoughts on both? Crispness? Feel? Torque Rating? Ease of fitment into various platforms? Im sure all of these things come into effect when deciding. Just curious as to what owners of the different setups have to say... |
T56 Magnum
Originally Posted by jamaalsmith
(Post 10643909)
seems to me like its between a t56 and the getrag then...i know a couple of guys are running the t56, but i've had a difficult time finding someone runing the v160.
Thoughts on both? Crispness? Feel? Torque Rating? Ease of fitment into various platforms? Im sure all of these things come into effect when deciding. Just curious as to what owners of the different setups have to say... |
I'm going to input on this since i've been using the T56 successfully for over a year.
the getrag is know to handle 1000hp no problem but is also a lot more expensive. I have a t56 from a GTO upgraded with the kit from tick performance and i have never had a problem. i've launched the car with the 2 step, shifted @ 8500rpm, beat the heck out of it and still shifting fine. i actually had it open and inspected and it's like new inside. i think the entire swap cost close to 4k-4.5 and is the best option for the 20B swap..lots of parts to customize it how u want it. save time and money and go this route as it has been proven by numerous members on this forum. |
Gentlemen...exactly the kinds of responses im looking for.
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BewTew, how would you say the tranny feels when shifting. Crisp? Accurate? I do believe i've read through your thread a couple times but cant remember off the top of my head. Ease of repair and initial costs are very important factors to consider. Thanks for the insight.
Anyone running the Getrag to offer a comparison? |
getrag
Originally Posted by jamaalsmith
(Post 10646518)
BewTew, how would you say the tranny feels when shifting. Crisp? Accurate? I do believe i've read through your thread a couple times but cant remember off the top of my head. Ease of repair and initial costs are very important factors to consider. Thanks for the insight.
Anyone running the Getrag to offer a comparison? |
Great Thread Guys!! Im planning the R154 swap into mine with in the next few months...
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It's looking like a domestic transmission is the most cost effective solution.
I'm interested is hearing more about that ChipMotorsports adapter plate. |
Interesting..american muscle meets rotary POWA!
I wonder what kindof difficulties i would encounter trying to adapt a magnum t56 to the rx8 with a 20B...Time to go talk to Rgonza! Any complaints/praises on how the t56 feels compared to the native rx7 five speed/miata six speed in the rx8? |
T56 magnum
Originally Posted by Prometheus
(Post 10654435)
It's looking like a domestic transmission is the most cost effective solution.
I'm interested is hearing more about that ChipMotorsports adapter plate. |
RZ, when do you expect to have the 'final' prototype complete? Pricing yet?
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T56 magnum
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Originally Posted by jamaalsmith
(Post 10655990)
RZ, when do you expect to have the 'final' prototype complete? Pricing yet?
i should be receiving the new prototype in the next couple of weeks if that one fix great then that should be it. Price still needs to be determined we dont know until final product is made. I will keep you posted. Here is a pic of the bellhousing on the transmission. |
Nice! What wall thickness is the bell housing?
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Does the T56 feel like you are shifting a truck compared to the FD or FC??
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Originally Posted by Christopher W.
(Post 10658318)
Does the T56 feel like you are shifting a truck compared to the FD or FC??
But that might be a mind over matter issue. Every T-56 I have the oppertunity to run through has never felt like a truck transmission. |
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