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Westfieldman

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Chris the reason i have the type 9 . Changing gear  is about

as slick as a 70 s Atkinson eight wheeler.

I want something you can change gear a bit sharper like🙂

Especially 1st to 2nd.

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From SBD site looks like the v6 used the longer input shaft, longer appears 20mm longer.   http://www.sbdev.co.uk/Gearbox/Bellhouses/Bellhouses.htm   If you currently have a rocket box, I hope you

They take the rear portion of a sacrificial Type-9 case, attach the shift rod sections with a coupler and roll pins, then attach the two cases with a thick U-shaped aluminium bracket (~6mm thick).  He

Yes you can.   On my BGH box gear changes are much better that my previous “straight out of an 80’s Sierra” type 9.    Basically, it can easily take the power, it will change better and

I have a type 9 which is pretty smooth. So perhaps yours can be improved. Do you have the extension on to the gearbox to move your lever further backwards ?  There is a bush in this that is simple to replace but can cause shifting issues if it is worn .

 

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No mate , its just standard.

I'm just thinking its a 70's gearbox made to take 70 - 80 hp.

3rd to 4th back to 3rd is smooth enough🙂

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Chris King

If you can afford it, get an uprated type 9 from the likes of BGH or SPC. The difference is night and day and the gearing is soooooo much better!

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Ian Tolfree (tolf) - WSCC AO Rep

I swapped my standard type 9 for a BGH box with a long first gear- what a difference it makes. No more crunching the gears and up to 40mph in 1st.

definitely recommend BGH

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The BGH is a great upgrade.  I'm not sure if they still offer their bespoke Westfield gear lever extension, but that combination is very, very good.  To put it in perspective, I also have an Elan and MX-5, two cars known for their gear change.  For me, the BGH is a very close second to the Elan, with the MX-5 coming in third.  

 

-John

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I can see how you can upgrade a gearbox to take more power.

But how do you make a gearbox slicker? If the workings are 

fundemetaly the same.

So the BGH type 9 (40 year old design) is as slick as a modern mx5 (20 year old design)?

Surely £1500 would be better spent on a mx5 gearbox and conversion no?

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Chris King

No. 
 

The BGH or SPC will be slicker than std. mine certainly is. 
 

But more importantly they will have ratios suited to our type of car. The mx5 box is certainly a nice one but the ratios aren’t actually that good. 

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37 minutes ago, MR.C said:

So the BGH type 9 (40 year old design) is as slick as a modern mx5 (20 year old design)?

I'm sure there are a number of things that contribute to shift quality, including weight of the internals that must move to execute a gear change.  Another important aspect is the shift linkage.  As mentioned, my BGH uses a very different setup than the stock Westfield extension and is more precise.  I'm sure this helps.  The throws between the two boxes in my cars are virtually identical, and although the MX-5's throws are a touch lighter, the BGH feels more mechanical, which I prefer.  The Elan's gearbox -- which is closer to a 60 year old design --  is the slickest of the three.  

 

Chris is also spot on regarding ratios.   There is nothing wrong with the MX-5 box, the point here is that a BGH Type-9 is great in its own right.  

 

-John

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25 minutes ago, JohnCh said:

BGH uses a very different setup than the stock Westfield extension and is more precise. 

What is it?

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They take the rear portion of a sacrificial Type-9 case, attach the shift rod sections with a coupler and roll pins, then attach the two cases with a thick U-shaped aluminium bracket (~6mm thick).  Here are photos taken before installing mine back in 2007.

1466478_orig.jpg

 

2001250_orig.jpg

 

-John

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Chris King
1 hour ago, JohnCh said:

As mentioned, my BGH uses a very different setup than the stock Westfield extension

Mine has no extension and still was way better than the original 1980’s type 9 I originally fitted. 

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Chris , in what way would you say it was better?

Apart from of course being able to take more Power safely.

Can you change from first to second swiftly if giving it the beans so to speak?

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