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-   Engine & Drivetrain (http://www.the370z.com/engine-drivetrain/)
-   -   7at -> 6mt (http://www.the370z.com/engine-drivetrain/120898-7at-6mt.html)

louiey370z 04-05-2017 08:46 PM

Quote:

Originally Posted by Chuck33079 (Post 3637008)
Ok, that makes a LOT more sense.

Yeah you'd be surprised how much of a **** show it was when I purchased it so it all just added up in the long run. I don't think it's possible to actually kill a tranny and motor within 80k miles

Presto 04-05-2017 10:28 PM

Fix up the tranny, sell it. Buy a 6mt. Less headaches that way

Juan@Fontana 04-06-2017 01:32 PM

Quote:

Originally Posted by Jayhovah (Post 3636983)
I've often wondered - can you shed some light on what is actually needed?

all the mechanical components, the OE Shift boot / trim. from what I've seen and have been able to research a re-flash is recommended to the M/T ROM for both the ECM & BCM. Also the TCM should be removed, This is what we have had to do on the Z33's and V35's i don't think it'll be too much different for the Z34 except for the rev-match feature. I think you'll be stuck like a base model without it but otherwise i haven't seen any major electrical differences. so my only theory I'm waiting to confirm is if a simple re-flash will fix it or if there will be more wiring involved. :tup:

Jayhovah 04-06-2017 01:40 PM

Quote:

Originally Posted by Juan@Fontana (Post 3637413)
all the mechanical components, the OE Shift boot / trim. from what I've seen and have been able to research a re-flash is recommended to the M/T ROM for both the ECM & BCM. Also the TCM should be removed, This is what we have had to do on the Z33's and V35's i don't think it'll be too much different for the Z34 except for the rev-match feature. I think you'll be stuck like a base model without it but otherwise i haven't seen any major electrical differences. so my only theory I'm waiting to confirm is if a simple re-flash will fix it or if there will be more wiring involved. :tup:

Thanks! Hope you can report back after you've helped someone through a successful swap. I am certain the info would be invaluable in this community. This platform is still gaining better and less expensive turbo/SC options these days and I think the shortcomings and cost of making power with the 7AT is turning people off.... It could be cheaper just to switch to MT than build the AT!

Felix 808 04-06-2017 09:29 PM

Don't forget the Diff as your gears will be 10% taller & lag a little more if you swap from AT to MT.

Zat_Zuma 04-07-2017 10:18 AM

Quote:

Originally Posted by Jayhovah (Post 3637418)
Thanks! Hope you can report back after you've helped someone through a successful swap. I am certain the info would be invaluable in this community. This platform is still gaining better and less expensive turbo/SC options these days and I think the shortcomings and cost of making power with the 7AT is turning people off.... It could be cheaper just to switch to MT than build the AT!


Not really that much more expensive.

A fully rebuilt 7AT is slightly more expensive compared to a new clutch, flywheel, pressure plate, short shifter, and a HD CSC for a 700 HP rating combination. So in reality its maybe a thousand more. If you can do the work yourself, its almost the same costs for either MT or AT transmission beef up.

This is just something to ponder before giving up on the AT.


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