wild camper wrote:Hi
I’ve had a Bluespark, I started off with Bluefin, then went to Bluespark and finally ended up with a TDI Tuning CRTD4 Tuning Box
I wrote a piece about the history of it on this forum in reply to a guys query about Bluefin
Basically Bluefin and Bluespark although totally different types of engine management “boxes” provided impressive increases in performance but not the low end torque improvement I wanted.
I bought a used TDI Tuning CRTD4 off eBay for £100 and sent it to TDI Tuning for reprogramming for about £136, any CRT4 will do from any vehicle 2 channel or 3 channel because they supply a new harness specifically for the Custom.
Bluefin and Bluespark we’re both great at giving refunds within the trial period.
I’m delighted with The TDI Tuning CRTD4 it gives great low end torque and impressive performance if you keep it above 1500rpm, I think it has the edge over Bluespark because of the third channel on the harness to the RPM Sensor.
There’s been a slight improvement in fuel economy of about 10%
The CRTD4 costs a lot more than Bluespark if new but buying one off eBay and having it reprogrammed works out about the same price as a new Bluespark
If you want to try a Bluespark they’re very good at refunding if you return it undamaged and I think they give 28 days, Bluefin only allow 14 Days
I hope this helps
wild camper wrote:Mine is a 2017 2.0 Ecoblue 130PS
I was very disappointed in the fuel consumption and it wouldn’t drive at 30mph in 4th gear, I kept getting warnings to change to 3rd, and it wouldn’t cope with roundabouts in 3rd.
It now does all these things with the CRTD4, the fuel consumption display usually shows 41mpg, but in reality when I check it at every fill up brim to brim it works out about 35mpg which is still disappointing but as the speedometer is inaccurate the mileometer is probably inaccurate too (it reads 69mph when the satnav, which is probably more accurate reads 66mph)
One disadvantage is that I now have to drive in 3rd gear in 30mph zones because I’ve recently had 2 speeding tickets for exceeding 30mph.
Give Bluespark a try, you get 28days trial period, you need 6,7& 10mm sockets and removing and refitting the 10mm bolts can be a pig but the TDI Tuning CRTD4 is very similar only another “channel “ on the harness. I personally think the CRTD4 is better for low end torque but new it’s more expensive.
wild camper wrote:The 2.0 ecoblue engine needs the 3 channel harness
I was surprised to learn from TDI Tuning that any second hand CRTD4 (2 or 3 channel harness) can be reprogrammed for the 2.0 ecoblue engine, because they discard the old harness and supply a new 3 channel harness and reprogram The CRTD4 “Box”
It means that there are numerous second hand options on eBay because it doesn’t matter which vehicle it was originally fitted to
The TDI Tuning CRTD4 System takes readings from
Fuel
Boost
And the 3rd sensor which Bluespark doesn’t have is
RPM
I’m not not knocking Bluespark, it was good, very impressive increase in performance but TDI Tuning CRTD4 gave me performance and increased torque where I want it
I’m surprised that you want to improve the 170ps engine, I’d have thought it would give you everything you wanted
Check the before/after figures for the CRTD4 for the 170ps, you may find the “after” figures are similar to the 130ps
In other words there’s a better “gain” on the 130ps engine
And don’t be too disappointed if the economy gains aren’t as much as you hope for
Mikey msrt wrote:I fitted the CRTD4 to my euro 6 170ps and it made so much difference, loads of low down torque and power, I only had it on setting 5 which says it’s at 217 bhp and 468nm. It made it so much more drive able and wasn’t constantly changing gear. I would definitely get it with the Bluetooth option tho, allows you to turn it up and down or off with ease, it’s easy to fit, mines currently taken off as Ive had on going issues with mine and now being told it needs new injectors but will be going straight back on when it’s fixed, don’t expect any economy gains if you turn it up
amcq46 wrote:the 170 has plenty of push when you get it above 2500rpm, but at 1500 it is flat, and it has what feels like turbo lag between putting my foot down and then the revs starting to rise... So much so that I have started to apply the throttle on or before the apex of the bend, as I know it will take a second or 2 before the power kicks in.
so I am looking for a box / retune that will make it more responsive low down
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