Motorway cruising.

[nod]

Just to throw my unusual set up into the mix, I have a tdi90 with jdd and no power increase map (because I run on veg oil and have a specific veg oil map) .

I find it nice on long trips, definitely better MPG than standard box and diesel.

I've also had a mapped 75 with jdd , drove fine in Cornwall, hilly. Very quickly get used to the gearing.

Cc is a good idea, it's easy to go tooooo fast with the long 5th....
Cheers

 

[dj_efk]

Do you need to change the starter when fitting an MYP ?

Yes.

 

[dj_efk]

If it’s at all hilly you’ll regret a JDD, if it’s flat it’ll be fine. For a 75 I find the PTW a little too highly geared but it’s ideal with an MYP. It will need mapped for any higher gearing.

I do feel that I wouldn’t want my Stealth remapped 90 (127bhp) any higher geared - in any gear - than it is with the PTW. When going up the gears it’s quick in a “grunty” kind of way - but the needle doesn’t really whizz around the tachometer like it would with lower gearing, even at full throttle.

It is a lovely cruiser though - every speed limit zone has a low-revs gear where the engine is doing between 1600 - 2000rpm, whereas the MYP / NTG etc. makes a similarly-tuned 90 sound quite busy in some instances unless you change up into DMF-unfriendly low revs.

Robin says it’s not so in practice, but I always thought the PTW would be more suited to the lower spread of torque of the 90.

Immaterial if Simon is leaning towards a 5 speed anyway but those are my thoughts.

 

[Howey]

Evening Simon,

I can speak from both ends of your question Sir and agree it probably comes down to cost.

First up Project OEM is a remapped TDI AMF which has a MYP 6-speed gearbox. The throw pattern is remarkably shorter but a great ‘box for economy. I’m my instance I secured the MYP ‘box for £250 and had it prepared, serviced and installed at WOM Automotive for about the same price it cost to purchase; so just under £500 for the upgrade.

The even cheaper end of the spectrum is Project EUD, again a remapped TDI AMF. This particular vehicle has the JDD which is just as economical in 5th as the MYP in 6th. Some people suggest that the JDD has too many gaps between the gears but it’s nothing you don’t get used to after a day or two. I would have liked to go for another MYP in this car but with it being a Mk20 ABS equipped generation vehicle it attracted further installation costs. The JDD ‘box I grabbed in the end was from a low mileage Seat and only cost £100. Adding the new oil, seal and installation at £80 see it come to £180 all in.

Depending on your desire of having a novelty 6th gear, the JDD for me was a lot cheaper and just as usable. Some say the gaps are too big between the gears. On the flip side other say the MYP has too many gears and your always changing. It’s really down to how you drive and how much you want to afford. As it’s six of one and half a dozen of the other then I would set up a search for both and pounce on the first bargain, thus letting fate decide for you.

Kind regards,

Tom

Wow £80 labour for changing the gearbox is awesome! Cost my £54 to do it myself (bought a dual engine beam)

Surprised no one has mentioned the other 02R (5 speed) options, MAL MNY MZK there's a great thread on here about them!

Love my JDD too with only compromise being 4th isn't available until 45 mph

 

[2work]

Wow £80 labour for changing the gearbox is awesome! Cost my £54 to do it myself (bought a dual engine beam)

Surprised no one has mentioned the other 02R (5 speed) options, MAL MNY MZK there's a great thread on here about them!

Love my JDD too with only compromise being 4th isn't available until 45 mph

Hi Tom, Yes and that included fresh oil and a new seal that I purchased myself. £180 all in was an extreme bargain, thankfully a friend helped out which is why it was so cheap. The JDD ‘box has performed perfectly so far and not struggled with the known gaps or any such labouring up hills or around the twisty back roads. As you know, you just get used to it.

Kind regards,

Tom

 

[Howey]

Hi Tom, Yes and that included fresh oil and a new seal that I purchased myself. £180 all in was an extreme bargain, thankfully a friend helped out which is why it was so cheap. The JDD ‘box has performed perfectly so far and not struggled with the known gaps or any such labouring up hills or around the twisty back roads. As you know, you just get used to it.

Kind regards,

Tom

Mega!!

Yeah same, transformed the feel of the car!
On the few occasions I have had it on the motorway it just feels like it wants to go and go with the revs hard to believe for the speed it achieves. General economy appears to have increased by a few mpg but it's early days to be sure!

I have a MZN to go in Mr Black when I get chance as its original box works but crunches in 3rd if swiftly selected and generally feels ropey especially compared to the JDD. Clutch is also a touch heavy so will be worth while!