Az6 gearset Neat Gearboxes
#1
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Join Date: Dec 2015
Location: Brisbane, Queensland, Australia
Posts: 222
Total Cats: 72
Az6 gearset Neat Gearboxes
Neat Gearboxes in Adelaide South Australia are the company that assembled my PAR Engineering gearset (I hope to never deal with PAR again ever - personal experience and opinion do your own research).
Neat Gearboxes were outstanding to deal with, and they have since built my 3.6 diff with solid pinion and billet bearing caps - also a flawless experience.
One of their existing products is the ‘circlip mod’ for the Az6, and they regularly release upgrade parts for common transmissions used in motorsport.
They are currently gathering interest in an upgraded helical 1st-5th set for the Az6 including the Miata version. Find them on Facebook and ask to be added to the group if you’re interested in this.
Neat Gearboxes were outstanding to deal with, and they have since built my 3.6 diff with solid pinion and billet bearing caps - also a flawless experience.
One of their existing products is the ‘circlip mod’ for the Az6, and they regularly release upgrade parts for common transmissions used in motorsport.
They are currently gathering interest in an upgraded helical 1st-5th set for the Az6 including the Miata version. Find them on Facebook and ask to be added to the group if you’re interested in this.
#7
$7k is a bit steep for me, but if they can get deposits for a batch of 20 or 30 'kits', it might bring the price down. I wouldn't commit to a a production run just on 'interested numbers', get the punters to put up $1k, then you have a better idea how many are buying, and how many are rubbernecking.
If they are just going to sell a kit, then someone is going to have to put it together, add another $6-700 min I'm guessing. But as Lachy says, if it saves a transmission swap, there might be some savings to be had.
I'm glad I still have my spare transmission.
Anyway, early days.
If they are just going to sell a kit, then someone is going to have to put it together, add another $6-700 min I'm guessing. But as Lachy says, if it saves a transmission swap, there might be some savings to be had.
I'm glad I still have my spare transmission.
Anyway, early days.
#8
If it is that expensive I think it'll be a tougher sell. Similar to the Walter Motorsports offerings, if you dump that much money into a single transmission and manage to break it somehow then you're out the same amount of money to replace it. That's an expensive mistake.
If you could swap in a ZF and managed to break that, then you're out what, $1500?
Keeping the OEM setup is very appealing, but I'm not sure I could justify $7k if it somehow broke.
If you could swap in a ZF and managed to break that, then you're out what, $1500?
Keeping the OEM setup is very appealing, but I'm not sure I could justify $7k if it somehow broke.
#11
However, there remains the possibility that a new gearset might have its own issues - bugs in the design or QC issues. At my stage of life, and my budget, I am much more risk-averse these days than five or 10 years ago, and pioneering stuff is not in my playbook.
The thought of turning up the wick in my car is tempting though ...
#12
@The Australian Did you notice an improvement in the "feel" of the gearbox too?
Mine was always horrible and made "less horrible" by the Miata Roadster Tall-Angled Short Shift Kit, which allowed me to reliably select reverse (previously about 40% of the time it would only partially engage) and eliminated selecting the wrong gear the wrong gear (eg. on a turn, "finding" 2nd when I wanted 4th).
These issues seem to be "hit&miss" with AZ6 transmissions, even up to the Toyota AE86.
Some cars never have these issues but for those that do, using them is a horrible experience.
I have a friend who sold his brand new AE86 after 8 months because he constantly had difficulties going from 1st to 2nd and needed to go to 3rd instead to get across an intersection.
He described the car as a "death trap" due to many close-calls getting across the busy intersection and all Toyota did was try different transmission fluids (which "sort of" worked for 2 days).
My advice to buyers is test-drive the AZ6-equipped car when the engine is cold since SOME of the issues go away once the engine has warmed up,
If it doesn't feel right for ANY reason, walk away and test-drive another until your happy with the feel of the gearbox.
While minimising these issues, my AZ6 is still nowhere near as pleasant as the 5-speed in my 2005 SP23 or previous 1982 Mitsubishi JA Starion.
Mine was always horrible and made "less horrible" by the Miata Roadster Tall-Angled Short Shift Kit, which allowed me to reliably select reverse (previously about 40% of the time it would only partially engage) and eliminated selecting the wrong gear the wrong gear (eg. on a turn, "finding" 2nd when I wanted 4th).
These issues seem to be "hit&miss" with AZ6 transmissions, even up to the Toyota AE86.
Some cars never have these issues but for those that do, using them is a horrible experience.
I have a friend who sold his brand new AE86 after 8 months because he constantly had difficulties going from 1st to 2nd and needed to go to 3rd instead to get across an intersection.
He described the car as a "death trap" due to many close-calls getting across the busy intersection and all Toyota did was try different transmission fluids (which "sort of" worked for 2 days).
My advice to buyers is test-drive the AZ6-equipped car when the engine is cold since SOME of the issues go away once the engine has warmed up,
If it doesn't feel right for ANY reason, walk away and test-drive another until your happy with the feel of the gearbox.
While minimising these issues, my AZ6 is still nowhere near as pleasant as the 5-speed in my 2005 SP23 or previous 1982 Mitsubishi JA Starion.
#13
Hopefully a decent number of the current 200 interested individuals will stay interested when it comes down to brass tacks, and there's enough funds raised to get the project off the ground. Having a simpler solution available for the biggest hurdle against high-horsepower Miatas would be a game changer.
Last edited by Z_WAAAAAZ; 09-18-2024 at 06:47 PM.
#14
@The Australian Did you notice an improvement in the "feel" of the gearbox too?
Mine was always horrible and made "less horrible" by the Miata Roadster Tall-Angled Short Shift Kit, which allowed me to reliably select reverse (previously about 40% of the time it would only partially engage) and eliminated selecting the wrong gear the wrong gear (eg. on a turn, "finding" 2nd when I wanted 4th).
Mine was always horrible and made "less horrible" by the Miata Roadster Tall-Angled Short Shift Kit, which allowed me to reliably select reverse (previously about 40% of the time it would only partially engage) and eliminated selecting the wrong gear the wrong gear (eg. on a turn, "finding" 2nd when I wanted 4th).
#15
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Thread Starter
Join Date: Dec 2015
Location: Brisbane, Queensland, Australia
Posts: 222
Total Cats: 72
@The Australian Did you notice an improvement in the "feel" of the gearbox too?.
#16
On price, the $7.5k (iirc) estimate is for 50 sales - pre-orders?
There is (was when I looked) about 130-40 signed up for the group, that's a strike rate of 1:3 as I expect that number to climb. It looks optimistic to me, but there is no doubt there is a pent up demand for something like this. When I hear what WRX and Evo people pay for gearboxes, that is dirt cheap.
There is (was when I looked) about 130-40 signed up for the group, that's a strike rate of 1:3 as I expect that number to climb. It looks optimistic to me, but there is no doubt there is a pent up demand for something like this. When I hear what WRX and Evo people pay for gearboxes, that is dirt cheap.
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