Update 2025.7 – The Euro 5 Transit engine suffers from weak pistons, so these days i recommend a mild tune only, they go pop standard, but tuned can only increase heat & risk so proceed with caution. Injector health is always implicated, so i think if i owned one, i would try & find some new injectors to reduce risk.
The original post below is from 2013.
2012 on MK7 Transit & 2013+ Custom & MK8 ( Euro 5 ) , right up to about 2017, all the share the same basic engine & ECU & now can all now be tuned tuned to at least 175ps / 435nm ( that’s at least 185ps when measured on a cheaper dyno 😉 ) .100mph speed limiter defeat also possible.
The dyno printout from a 100ps hire van I tuned 2 years ago, shows a good gain ( 450nm max ) & the tuning has improved further since..
If maxing out your new van isn’t your cup of tea I can alternatively take it to 155ps on Customs or on the regular Transit, to 140ps using factory software
Warning – The ECU position on Transit Customs is effectively a water trap so any disturbances must be made fully watertight again. Tuning requires ECU opening & replacement security bolts etc. Its an involved process compared to most other vans & ecu’s – It takes longer to do this part ( well ) than it does to actually tune them!
I have seen several bodge jobs with damaged ECU’s & wrong security bolts etc , & 2 stories of subsequently leaking ECU’s costing thousands to replace etc all done by recognised names in UK tuning so choose your Man carefully on this one! Vantuner takes time & great care to make the job as invisible as possible..bring a book to read basically 😉
Emails –
SeikoKid’s report & dyno test from early 2017
Click here to go to the report on Fordtransit.org
January 2015 -2014 Custom Sport 155
Martyn, just some initial thoughts on the map. I think You are underselling what a difference the tune makes .It’s like a totally different van. Miles quicker through the gears, huge improvement in pickup in all gears. On the motorway there’s tons of torque and pace and no more gear hopping……80mph then drop to 45-50mph and happily can leave it in 6th.Oh & still maintaining 30-31mpg whilst I’m ragging it its tits off!
Well well well impressed so far! Thanks very much! Super job
December 2014 – 2014 Custom Sport 155
Mike Hereford