15-10-2014, 05:38 PM
The problem is that the internal gearing in the GTi6 is quite short, therefore the final drive is already LONGER than that of a HDi, so without insane customisation of the diff housings and custom CWP, you're barking up the wrong tree...
The GTi6 box is useless for conversion, it's not that strong, I had one in my car and turned the gearbox oil silver unicorn blood in roughly 2 months.
In regards to the MMT6, I don't think it's THAT long, 1720rpm I doubt is correct at 70mph... Unless my speedo is very out! I'd say it's between 18-1900rpm at 70mph - I'd suspect that's figures pulled from something else that's Ford/PSA. And especially in regards to power, yeah sure, up long hills I have to change down, it is a very torquey engine (252lb.ft at 2000rpm) - but the MMT6 is just a perfect transmission in terms of ratios, lovely short 1st, 2nd, 3rd, but gets longer into 4th and 5th and a very long 6th... Whether you could fit one to a 306 I doubt, the diff is absolutely gigantic as it has a different diff on each layshaft as I understand.
I've never driven a ML6 so couldn't comment on what the ratios are like, but if I had the option of fitting one, I'd be trying for an MMT6. No driveshafts will fit mind, completely custom job!
The GTi6 box is useless for conversion, it's not that strong, I had one in my car and turned the gearbox oil silver unicorn blood in roughly 2 months.
In regards to the MMT6, I don't think it's THAT long, 1720rpm I doubt is correct at 70mph... Unless my speedo is very out! I'd say it's between 18-1900rpm at 70mph - I'd suspect that's figures pulled from something else that's Ford/PSA. And especially in regards to power, yeah sure, up long hills I have to change down, it is a very torquey engine (252lb.ft at 2000rpm) - but the MMT6 is just a perfect transmission in terms of ratios, lovely short 1st, 2nd, 3rd, but gets longer into 4th and 5th and a very long 6th... Whether you could fit one to a 306 I doubt, the diff is absolutely gigantic as it has a different diff on each layshaft as I understand.
I've never driven a ML6 so couldn't comment on what the ratios are like, but if I had the option of fitting one, I'd be trying for an MMT6. No driveshafts will fit mind, completely custom job!
