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-   -   REW swap question ? (https://www.rx7club.com/build-threads-294/rew-swap-question-1011669/)

rtrychk08 Sep 14, 2012 12:32 PM

REW swap question ?
 
I am building a REW to drop into a 2nd gen... however i have a question about the flywheel...i am using the n/a tranny but when i tried to fit the n/a flywheel on the engine it hits on a corner... I was wondering if there was a way that i could use the REW flywheel and a n/a clutch and pressure plate and it would still work on the n/a tranny?

88t2fc3s Sep 14, 2012 10:54 PM

Just source out a TII drivetrain, it will hold alot more power and less problems.

rtrychk08 Sep 14, 2012 11:55 PM

yeah but i still need to find out if i can use the flywheel?

88t2fc3s Sep 15, 2012 12:01 AM

Get the turbo tranny, then you can use the S5/FD turbo flywheel. Plus it uses a 9 7/16" clutch versus the 8 7/8 n/a clutch.

jl1rx7 Sep 15, 2012 07:08 AM

You can use N/A driveline stuff but it has to be the same from flywheel back. But you can't put a lot of HP through them before you blow them out. Better to do as others said find TII stuff.

Banzai-Racing Sep 15, 2012 07:25 AM


Originally Posted by rtrychk08 (Post 11221902)
I am building a REW to drop into a 2nd gen... however i have a question about the flywheel...i am using the n/a tranny but when i tried to fit the n/a flywheel on the engine it hits on a corner... I was wondering if there was a way that i could use the REW flywheel and a n/a clutch and pressure plate and it would still work on the n/a tranny?

If you are dead set on using the N/A trans you must use an S5 N/A flywheel. If you are using the stock flywheel you will need to grind down the rear iron by the side inspection plate. To avoid the need to modify the rear iron you can install an aftermarket lightweight N/A flywheel, which mounts on a S5 auto rear couterweight, this would give you the clearance that you need.

rtrychk08 Sep 16, 2012 09:38 AM

okay awesome thanks for the advice everyone ! it was much needed to finish my build! i havent decided yet i may just swap in the t2 tranny so i can have the durability that i need b/c i am running a single turbo but it is only a t04...but i still need to withstand power..

marshall13B Sep 16, 2012 10:29 AM


Originally Posted by rtrychk08 (Post 11223817)
okay awesome thanks for the advice everyone ! it was much needed to finish my build! i havent decided yet i may just swap in the t2 tranny so i can have the durability that i need b/c i am running a single turbo but it is only a t04...but i still need to withstand power..

That's a great place to start. But I would definately go with the T2 tranny. It's easier, more reliable and set up so have your drive train set up when it comes time for bigger bolt-ons.

rtrychk08 Sep 16, 2012 01:07 PM

yeah for sure i was already thinking to swap in the t2 differential just trying to get it running but i want to do it right so i dont have more problems down the road.

rtrychk08 Sep 17, 2012 11:35 AM

if i stick na i have to get an s5 ? cannot be s4? and what counterwheight do i use the s5 weight?

Originally Posted by Banzai-Racing (Post 11222734)
If you are dead set on using the N/A trans you must use an S5 N/A flywheel. If you are using the stock flywheel you will need to grind down the rear iron by the side inspection plate. To avoid the need to modify the rear iron you can install an aftermarket lightweight N/A flywheel, which mounts on a S5 auto rear couterweight, this would give you the clearance that you need.


RXSpeed16 Sep 17, 2012 12:00 PM


Originally Posted by rtrychk08 (Post 11225013)
if i stick na i have to get an s5 ? cannot be s4? and what counterwheight do i use the s5 weight?

Yes, needs to be an S5 or S6 flywheel/cw to match the front cw and rotors. S4's are balance differently so it won't work.

Another vote to just get a TII trans or entire drivetrain now.

Banzai-Racing Sep 17, 2012 06:28 PM


Originally Posted by rtrychk08 (Post 11225013)
if i stick na i have to get an s5 ? cannot be s4? and what counterwheight do i use the s5 weight?

You can use an S4 trans, but the flywheel and/or CW must be S5/S6.

Same hold true for a TII trans.

rtrychk08 Sep 18, 2012 01:09 PM

Okay thanks guys


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