MFR gearbox

[RotorHeid]

Hi,
Is somebody got a Mazda Factory race gearbox?
I\'m looking at one at this moment!:D
Ian

[Warthog]

Tell me all about it never heard of it:wave .............Now.

[RotorHeid]

MFR\'s race gearbox\'s spec:-
(A) Gearing ratio:- 1st=2.350,2nd=1,608,3rd=1.240,4th=1.00,5th=0.88 or 0.839 with roller bearing installing all gears

(B) Tailhousing:-  Roller bearing rather than bushing like stock gearbox

(C) Transmission case:-  6.00mm thick,thicker than 4.6 stock
(D)  No speedmeter gearing/rev light switch
(E)  Suit to high rev BP or PP motor.
(F) 1980\'s box for FB race car
(G) Smooth case( no rib like turbo box) will mate any 12A or 13B engine

 first choice is a RX8 box for its fast shifting and cheaper too!! and  turbo\'s box!!! cos it\'s too slow to shift( good for turbo,not high rev N/A motor.

Happy now!:Thumbsup!

[elford_tim]

Regarding your first choice (the RX-8 box), does anybody have any experience with running one in a slightly warmed over FD?

Not that I\'m keen to spend money at the moment but six gears may come in handy at one point...

[Warthog]

I was chatting with Steve at Silverstone yesterday morning ( my mate who runs the RX-8 Racing Team ) and this ( RX-8 Box ) did come up in conversation.
I am going to pop in and see him in the morning for a real tech talk. I will keep you posted.
:wave

[Warthog]

MFR\'s race gearbox\'s spec:-
(A) Gearing ratio:- 1st=2.350,2nd=1,608,3rd=1.240,4th=1.00,5th=0.88 or 0.839 with roller bearing installing all gears

(B) Tailhousing:-  Roller bearing rather than bushing like stock gearbox

(C) Transmission case:-  6.00mm thick,thicker than 4.6 stock
(D)  No speedmeter gearing/rev light switch
(E)  Suit to high rev BP or PP motor.
(F) 1980\'s box for FB race car
(G) Smooth case( no rib like turbo box) will mate any 12A or 13B engine

 first choice is a RX8 box for its fast shifting and cheaper too!! and  turbo\'s box!!! cos it\'s too slow to shift( good for turbo,not high rev N/A motor.

Happy now!:Thumbsup!

So how many of these boxes were made and for what power. etc etc etc.:wave

[RotorHeid]

If standard turbo model, say 230hp and it should be okay to use!

Turbo motor 230hp,210lb/ft
PP motor 280hp,200lb/ft
Only person that I know of is Tim from RXMotor, he using rx8 for FB dragcar

[kev-yorks]

Keep looking John we\'ll come up with something.
Kevin

[RotorHeid]

how many!!,I don\'t know!,
Capacity to hold up to 320HP or little more.
Same type using in Daytona 24Hrs, leman 24hrs etcc..
British team like TWR, I believe that they are using Jack knight\'s gear sets

[Warthog]

Have you checked out the Kiwi\'s Kev.??
I\'ve done the USA and Aus...this is doing my head in I can\'t believe the fact that nobody has solved the gearbox problem for RX7\'s running over 500bhp, without going Dog Box. There are loads out there worldwide.............................................Ahhhhhhhhhhhhhhhhhhhhhhhhh. 1 2 3 4 5 6 7 8 9 10.:eek

[Spartacus]

There are t56 6 speeders used in the US, any good?
You have more than likely seen it but here you go:
http://www.rx7club.com/showthread.php?t=609461&page=1&pp=15&highlight=t56+gearbox

[Warthog]

Yeah, lots of talk but nobody seems to have done it..........:wiggle

[Spartacus]

There is at least one by the look of it:Thumbsup!
http://www.rx7club.com/showthread.php?t=474847

[Warthog]

Yeah $7500 in 2005. They are still talking on how to do it today. Strange forum.:xconfused

[Spartacus]

Yeah $7500 in 2005. They are still talking on how to do it today. Strange forum.:xconfused

:rollin yes I see what you mean, but how hard can it be? (no need to answer that)