Zoltar
How's the gearbox going??
Has it had a big impact on mpg for the last few months??
Cheers
J
Quick 2 month progress report, I have been out of the country for a month, thus so far I have only done two full tanks of fuel since coming back, so can’t really comment too much on MPG yet.
The tanks I have done though, have given me about a 10-15% increase in MPG doing mainly stop start city traffic conditions, so can't complain with the extra 40 miles per tank so far.
I will be doing a big run in the next couple of weeks, as a test I will do the run at 60mph to compare with other members on the site the MPG differences.
Loving the new ratios, seems that every gear has a specific designed use.
3rd:
General city/town driving, really gotten used to the 3rd gear now. I thought the ratio was slightly too long to begin with….now it’s my favourite gear.
I wasn’t used to driving around under 2,000rpm at first but the engine has no problem with that and I find it will pull easily from 1,400rpm on.
Either the engine’s ECU has adapted to the use of lower revs or I have!
Either way the engine doesn’t seem to splutter in 3rd@30mph as it did when I first got the JDD installed.
Now 3rd is used from 25mph/1,400rpm onwards, it’s useful up to 50mph so I usually stick to 3rd in town now as it fits most town/city conditions.
4th :
A-B road cruiser/blaster. 40-70mph useful range.
5th :
Fast A-Road/Motorway cruising. 55mph onwards range
It feels like the designers of the ratios had worked out all the every day driving conditions/speeds that would be needed in todays driving and tailored each gear to fit.
I am staying in one gear a lot more now than I was with the OEM gearbox as per uses above.
There is no sharp rise in any of the change downs, it feels like any other car I have driven, it's no concern at all to the ‘drivability’ of the car.
I will update the main post once I have logged a few more miles.