Something of interest to golf R and S3 DSG owners running the DTUK FSR+ system
Hi Guys,
over the last few months we've been hearing of some issues that a small % of customers with DSG cars have been having when using the FSR+ system. This has all started to occur since we updated the software around 6 months ago. The funny thing about it is, that it does affect every DSG equipped car, and I'm sure there are a lot of guys on here that would back me up.
We would be silly to sit here and do nothing, well we have been doing something and we have come to this conclusion based on testing the FSR+ against another well known "tuning box".
For now i am going to keep the info very general and explain where and how we have got to today,
When the FSR+ was first launched we used 4 files, the difference between these 4 files was basically the amount of boost we were adding on zero position, each + would then take an additional step up. 90% of customers were happy with these files, but the feedback that we received from a small percentage of customers was that the car lacked something lo down compared to a remap, but was very linear and the gear changes were silky smooth, our solution at the time was to add a pedal box. This instantly brought the power in a lot earlier and the feedback was all great, and the gear changes were still silky smooth.
We then switched to the new push button module with 3 maps, we simply lost the least powerful of the 4 maps and kept map 3 (leo83) as map 3.
I have always wanted the best for customers, and commercially i should of stuck to the proven formula of the FSR+ / Pedal box, but as we do listen to customers we set upon a quest of trying to achieve what customers wanted without using the pedal box. This is were V2 and then V3 software came about.
The changes we made to the software were purely down to the signal speed of the processor, and what we found was that by adjusting these speeds we could achieve a quicker response, and on the dyno the peak torque is produced lower in the RPM range. Im sure anyone thats currently running V3 software can relate to this by simple switching between map 3 and map 1
map 3 is very linear, and personally it certainly surprises a lot of people as you don't realise how quick youre going until you look down at the speedo, in comparison map 1 is a lot more aggressive and as mentioned above on a small number of DSG cars this is causing issues with gear changes.
So what can we do to resolve this? we've been working with a couple of DSG equipped cars (1 that has notchy gear changes, and 1 that doesn't) and what we have found is that a compromise has to be made...
Map 3 doesn't cause any issues with gear changes, but is the least punchy where as map 1 as mentioned above is more in your face and is what everyone wants, and this is where our comparison to the "other box" comes into play,
We've ran this "other box" on our own golf R and another 2 2.0 TFSI's and what we have found is that the power delivery of this "other box" is very very similar to map 3, our original file, so if youre having issues with gear changes using the FSR+ and think that buy buying another box youre going to be a lot happier, then do yourself a favour and switch your box over to map 3..
So whats the difference between V3 and V4 software, (I'm sure i explained this somewhere but cant find the thread at this time)
Map 1 and map 3 are the same on V3 and V4,
Map 2 used to be a variant of map 1 with the quicker signal speeds, where as on V4 we've adjusted the signal speed and its now a compromise between map 1 and 3.
So to summarise, if youre running an FSR+ with a DSG car and youre having issues with gear changes then as mentioned above please try map 3 as this will give you a great comparison to the "alternative" or if you wish youre more than welcome to come to us and actually try this "other tuning box" for yourself
Anyone wanting to upgrade to V4 software, then this is free of charge so please contact direct to arrange this,
