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Joined: Sep 2009
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Talk Morgan Guru
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Talk Morgan Guru
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Originally Posted By DaveW
The five speed Mx5 gearbox seems to have an enviable reputation for strength, which is not shared by the six speeder.

On a different tack I'm being sucked in towards the Plus 4 Club Racer upgrade.........

I need a cunning plan to get it past MrsW.......... thinking



I bet she'll never know. It is like cheating without sin.


'14 4/4 graphite grey
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Roadster Guru
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Trouble is I need to distract her while we're at the dealers..............


DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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Talk Morgan Expert
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Talk Morgan Expert
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The Cosworth tuning is less lary than it seems and the ECU is all pre-packaged. Ditch the Mazda gearbox and keep the Elite unit offered.

Only adjustment is prop length which is an easy enough job and not scary.

A decent CR HD race box and you’ll be wondering why use a road box...??

As a complete integrated unit - it’s a good price (no affiliation with seller btw).


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Talk Morgan Regular
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It would (only my opinion) be a horrible 4 pot screamer...with very little torque.

If it has a turbo then that would improve drivablity, however it would still be pretty harsh?

I would prefer a 5, 6 or 8 pot with those sorts of figures. woohoo


Honesty means doing it right, even when no one is looking!

2004 Roadster S1 3.0 V6 gone!

Mark
Joined: May 2015
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L
Learner Plates Off!
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Learner Plates Off!
L
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The morgan gearbox goes straight on to the Mazda MZR engine ('cos in actual fact its a ford duratec engine, or the ford duratec engine is a Mazda MZR, depends which way you look at it!)
I have the set up in my plus 4, the 200bhp supersport engine, 5 speed mazda box, great combination, you just got to be sure the mazda VVT cog is of the lates design it can fail resulting in a timing chain like clatter on start up, the later one doesn't, allegedly!.
The gearbox will hold up to 260+ bhp thro it. With 260 bhp out of the MZR/Duratec forged crank and pistons would be required. HWR Motorsport in northumberland do a lovely cosworth engine and get the blocks and heads in half a dozen at a time from US. Omex also do a lovely MZR/Duratec see thier website with prices. They developed the plus 4 s/s engine i believe

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Black Rat
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Black Rat
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Originally Posted By milligoon
The mx5 gearbox won't cope for one thing!


surely the Ad said complete with sequential gearbox ?


Keith
2013 narrow bodied + 4 Ruby.
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