Thoughts on a quaife or Tran-x dog engagement box

[Nick M]

Windy,

I think there may be some packaging issues in a Westfield with the box Dave is running - think Steve (Broughton) mentioned something to me about that but wasn't specific.

I don't think there's a gear-lever extension available either so unless the engine is way bay in the chassis it may be a bit of a stretch.

Cost was being touted around the 3.5K mark if I recall.

Looks a good box though (superior to the Quaife in several ways) but I'm not sure I'd want to do their Westfield specific R&D for them.

[windy]

Nick,

Do you recall who makes it? Someone said it was a company in the US I think?

Windy

[Nick M]

I *think* it's a company called Elite.

It's basically a modified Hewland transaxle internally with a bespoke casing / shift mechanism.

Pretty sure it's not American in origin.  They were at the Autosport show (the trade bit on the Friday) I believe, if that's in any way relevent or useful.

[markboyce]

ash,

thanks for that.  Tran-x sell a type 9 dog box. Ratios are:

1st        2nd      3rd        4th      5th  

2.38:1   1.76:1   1.39:1   1.15:1   1.00:1 Rally and Race

2.07:1   1.53:1   1.21:1   1.00:1   0.87:1 Rally and Race

1.89:1   1.33:1   1.14:1   1.00:1   N/A Rally and Race

2.07:1   1.53:1   1.21:1   1.00:1   N/A Rally and Race

Tran-x Dog Box

Availability is better than Quaife, around 1 week. Price when I called them was around 2550+vat. I assume there is room for discount in the price, as Quaife would move on the price of there box.

cheers

mark

[windy]

Does the tranx run 4 dog or 6 dog teeth? Phil Stewart recommends a 4 teeth set up for fast engagement of gears.

Windy

[markboyce]

dont know on that windy. I'll give Tran-x a call tomorrow.  Anything thing else you want to know about it?

cheers

mark

[markboyce]

Dont forget however the Quaife Sequential 5-speed is only 300 quid more expensive than the Tran-x box.  That must make the decision easier  

[windy]

5 speed dog H pattern Quaife - do you have info on ratio's for this for comparison with Tranx?

Windy

[ACW]

FYI Quaife 5 sp H pattern Dogs ratios:

1st  2.040 or 2.200 or 2.390

2nd  1.540 or 1.690 or 1.380

3rd  1.210 or 1.340 or 1.610 or 1.140

4th  1

5th 0.870 or 0.930

Max HP suggested is 275bhp which is same for all the dog boxes in t9

HTH,

ACW.

[S8ight]

Quaife six speed sequential Rocket box £3300+vat

you know you want one

[John Loudon - Sponsorship Liaison]

I've got a Tran X 4 speed dog box and am very pleased with it. It has larger main shaft bearing dias and needle roller bearings. The ratios are 2.07, 1.53, 1.21, 1.0 although they do others as well. It weighs 23kg and is near as damn it the same ength as a 5 speed so the prop still fits. You only have to move the mounting place a few inches. The price was very reasonable "nowhere near whats been mentioned above". If you visit the factory in Coventry in person, its amazing how much they will haggle.

John