Hmmm.... Six-speed gearbox??

Marinanut · Post by **Marinanut** » Fri May 15, 2015 3:45 pm

RX8 6 speed greabox direct replacement for Ford Type 9... really??
http://www.ebay.co.uk/itm/391126008516? ... rmvSB=true

Post by **PHUQ** » Fri May 15, 2015 3:58 pm

That's bellhousing to engine adaptor, whereas Chris' type 9 adaptor is bellhousing to gearbox. Nice thought though

Post by **MarinaCoupe** » Fri May 15, 2015 4:37 pm

I saw that, the Ford boys are fitting them to Escrots for five or six gears depending on whether early or late gearbox. You would need a bell housing adaptor for the early gearbox or a new or adapted backplate for the later gearbox. With prices of Type 9s really going through the roof lately, people are looking at alternatives now.

Chris
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locost_bryan · Post by **locost_bryan** » Mon May 18, 2015 11:54 pm

iirc the RX8 has an Aisin Warner 6-speed box, similar or the same as used in the MX5 (mated to Mazda MZR aka Ford Duratec) and various rwd Honda, Nissan, Toyota and Holden.

Post by **MarinaCoupe** » Tue May 19, 2015 9:53 am

In the UK the RX8 had a five speed box from 2003-2008, it has a removable bell housing.

Then from 2008 onwards a six speed box was fitted. The bell housing is integral to the gearbox.

Chris

grumpydad · Post by **grumpydad** » Tue May 19, 2015 10:40 pm

Hi
the 6th gear ratio is the same as a ford type 9 5th gear ratio
1 gear is lower than the ford
so for this to work you need a higher diff ratio
or you can fit a overdrive to the ford type 9

locost_bryan · Post by **locost_bryan** » Wed May 20, 2015 11:30 pm

MarinaCoupe wrote:In the UK the RX8 had a five speed box from 2003-2008, it has a removable bell housing.

Chris

Mazda made two 5-speeds, a smaller one for the MX5, and a larger stronger one for the RX8. They trace their histories back to the '70s, iirc the smaller one was for the 12a rotary and under 2-litre 4-cylinder, and the bigger one was for the 13b rotary and 2-litre+ 4-cylinder. The MX5 box also has an integral bellhousing.

iirc the 6-speed was used in late Nissan Sylvia, Lexus IS200, Honda NS2000, and Holden Commodore V6 in Aus.

MGBV8 · Post by **MGBV8** » Wed May 20, 2015 11:53 pm

grumpydad wrote:Hi
the 6th gear ratio is the same as a ford type 9 5th gear ratio
1 gear is lower than the ford
so for this to work you need a higher diff ratio
or you can fit a overdrive to the ford type 9

MGB axle swap would be useful then?
You've got the choice of 3.9:1, 3.7:1 3.3:1 or 3.08:1 and two axle case widths.

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