Modifying FWD Volvo Gearboxes.

**deathrider311271** · Tuesday 8th April 2014, 18:54

Originally Posted by Wobbly Dave

I post this without positive confirmation that my 4th gearbox since transplanting in the quaiffe LSD, is possibly on its way out. I have an appointment to see a gearbox specialist (the same people who did the fit back in 2011) later this week.

This brings me to the thought that it is impossible to modify these boxes without later problems. Whilst I accept pushing them harder will limit life I am feeling a little frustrated.

Should I be looking to change to an M66 - is this any stronger? Should I go brand new & cover that?

The ford focus ST and RS appear to have better boxes?

So Hamish says the only real way to get 400+ HP is to go down the RS Focus route. I don't agree - it must be possible as our Swedish cousins seem to have it nailed.

Going to speak to Russell at RT Mechanics to see what they did to overcome their own challenges on the yellow peril.

Speaking to the gearbox specialist he is also of the opinion that modifying/ ramping up the power on these road boxes is putting them beyond their engineered limits.

Perhaps leaving the open diff as is - is the only way?

this one sentence shows how little your so called tuner actually knows, its not bhp that kills gearboxes or clutches its torque.
400bhp isnt a problem for the box ASK TIM

**T5frankie** · Tuesday 8th April 2014, 19:06

Originally Posted by deathrider311271

this one sentence shows how little your so called tuner actually knows, its not bhp that kills gearboxes or clutches its torque.
400bhp isnt a problem for the box ASK TIM

daves car has no torque lol

**Jamest5r** · Tuesday 8th April 2014, 19:09

Frankie beat me to it lol

**Wobbly Dave** · Tuesday 8th April 2014, 19:24

Originally Posted by deathrider311271

this one sentence shows how little your so called tuner actually knows, its not bhp that kills gearboxes or clutches its torque.
400bhp isnt a problem for the box ASK TIM

That remark has been taken completely out of context! It was a figure of my own speech & not a direct quote - so I don't see how this point is in anyway constructive or even accurate. Given that power is a mathematical consequence of torque there is a direct correlation, to be honest I'd rather not get into tit-4-tat exchange over my tuner's better than yours

I think he was more intonating towards the RS gearbox being more capable given that it was designed to take more punishment from the outset & as a whole they are just newer.

Still don't want one.

**deathrider311271** · Tuesday 8th April 2014, 19:48

Originally Posted by Wobbly Dave

That remark has been taken completely out of context! It was a figure of my own speech & not a direct quote - so I don't see how this point is in anyway constructive or even accurate. Given that power is a mathematical consequence of torque there is a direct correlation, to be honest I'd rather not get into tit-4-tat exchange over my tuner's better than yours

I think he was more intonating towards the RS gearbox being more capable given that it was designed to take more punishment from the outset & as a whole they are just newer.

Still don't want one.

If it is mathematical as you say why has the torque on my S70 been limited by the map??? and before you ask yes it is a custom map, no i wasnt getting into a tit for tat about tuners, everyone has their own mind when it comes to tuners, for me AET motorsport for my ME7 car, Tim and Ben for my motronic 4.4.

Im not slating Hamish in any way but we all know he isnt really interested in doing custom maps, all he wants to do is reflash work and normal mechanics. For that reason alone i would be looking at other options.