A bit of history. I have a Skoda with the EA888 2.0 TSI + IS38 turbo. I had it remapped by a location specialist which increased power from 300hp to 343hp, and torque increased to 462Nm. At the time of mapping, the car was running 95 ron (UK) fuel, but is not running with Shell V-Power which I believe is 99 ron.

A few weeks after the remap, the turbo failed. It has since been fixed and a Littco L380X turbo fitted.

I know the IS38 turbo can and does fail, but the experience has left me doubting the map that's been put on the car. Rather than simply going out and getting someone else to put a new map on the car, I'm trying to determine if the map I have is actually ok before I spend any more money.

I've been out this morning and did a 4th Gear pull whilst using ODB Eleven to log certain parameters from the car. The road I used has a slight incline at the start, but is mostly flat after that. Air temperature outside is about 8c.

I've imported the data that I've collected into datazap, and I wondered if someone would be kind enough to take a look and highlight if there could be any issues with the outputs?

https://datazap.me/u/shaunsheppard/log- ... data=1-5-6

From my very basic understanding, it looks like the car is slightly overboosting in places by 0.9 bar. There are places where the ECU feels that it's necessary to retarding timing, mainly on cylinders 2 and 3.

Ideally I'm trying to find out if the map is likely to cause any further damage, or if the map may have in some way been responsible for the turbo failure.

BinaryShe wrote:A bit of history. I have a Skoda with the EA888 2.0 TSI + IS38 turbo. I had it remapped by a location specialist which increased power from 300hp to 343hp, and torque increased to 462Nm. At the time of mapping, the car was running 95 ron (UK) fuel, but is not running with Shell V-Power which I believe is 99 ron.

A few weeks after the remap, the turbo failed. It has since been fixed and a Littco L380X turbo fitted.

I know the IS38 turbo can and does fail, but the experience has left me doubting the map that's been put on the car. Rather than simply going out and getting someone else to put a new map on the car, I'm trying to determine if the map I have is actually ok before I spend any more money.

I've been out this morning and did a 4th Gear pull whilst using ODB Eleven to log certain parameters from the car. The road I used has a slight incline at the start, but is mostly flat after that. Air temperature outside is about 8c.

I've imported the data that I've collected into datazap, and I wondered if someone would be kind enough to take a look and highlight if there could be any issues with the outputs?

https://datazap.me/u/shaunsheppard/log- ... data=1-5-6

From my very basic understanding, it looks like the car is slightly overboosting in places by 0.9 bar. There are places where the ECU feels that it's necessary to retarding timing, mainly on cylinders 2 and 3.

Ideally I'm trying to find out if the map is likely to cause any further damage, or if the map may have in some way been responsible for the turbo failure.

Retard means two things - to high boost for your RON or messed ignition maps. Hard to say without tune file to compare.

Pukis wrote:Retard means two things - to high boost for your RON or messed ignition maps. Hard to say without tune file to compare.

The fuel is 99 ron, and boost is 1.6 - 1.7 bar, which is standard for stage one on this engine. So I guess that leaves there being an issue with the timings themselves then?

up to ~3° Ignition retard isnt as problematic for this engines. But you need think about atm air intake temperature isnt high... in summer there would be more. And than there will be highly more Ignition retard be there. EGT looks ok. Lambda seams to be okay. Your log is a bit short... better running 5te gear ~1800-7000rpm, so there is a good load for engine :). And for best do it 2,3 times direct after a single run.
1.7bar boost a bit much for Stage 1 in my opinion but everybody do other way, depend on revision stage your engine is running.
~350hp is possible with less boost ( I run ~1,5-1,55bar).

BinaryShe wrote:

Pukis wrote:Retard means two things - to high boost for your RON or messed ignition maps. Hard to say without tune file to compare.

The fuel is 99 ron, and boost is 1.6 - 1.7 bar, which is standard for stage one on this engine. So I guess that leaves there being an issue with the timings themselves then?

1.7bar Is high for a Stage 1 and only 43hp increase, i get 50-60whp gain (and around 110-120nm) on this is38 ea888 gen 3 engines with just 1.50 bar boost tapering to 1.37-1.4bar at redline but not dangerous, l380x shouldnt have Any problems with that boost level. I usually do 1.7-1.75bar peak for stage 2 and tapering to 1.4bar at redline with very good results (80whp gain or so and around 150nm gain). Is38s are shit anyway, specially first/2nd revisions with turbine wheel problems.

haddumex wrote:

BinaryShe wrote:

Pukis wrote:Retard means two things - to high boost for your RON or messed ignition maps. Hard to say without tune file to compare.

The fuel is 99 ron, and boost is 1.6 - 1.7 bar, which is standard for stage one on this engine. So I guess that leaves there being an issue with the timings themselves then?

1.7bar Is high for a Stage 1 and only 43hp increase, i get 50-60whp gain (and around 110-120nm) on this is38 ea888 gen 3 engines with just 1.50 bar boost tapering to 1.37-1.4bar at redline but not dangerous, l380x shouldnt have Any problems with that boost level. I usually do 1.7-1.75bar peak for stage 2 and tapering to 1.4bar at redline with very good results (80whp gain or so and around 150nm gain). Is38s are shit anyway, specially first/2nd revisions with turbine wheel problems.

What probably killed your turbo Is the fact theyre requesting a flat 2.6bar absolute boost pressure and not tapering at all at high rpm. Your l380x wont have problems doing that boost to redline but you could probably lower redline boost a bit and increase timing and get Better power with that turbo

I made lot of stage2 Golf R on stock Is38 turbo 400Hp, Is38 made 5-6 factory revision , and i know many cases where Is38 fail on 10 and 20 000 Km on stock softwares
No one can not blaim maps if we can not see modified file.

If im right and you puted on your car hybrid turbo practice in my workshop is every hardware need software and vice versa.
So put R600 intake there, Downpipe (decat or 200cels cat) and highly recommend RL inlet90 and muffler delete
Also put there new software and get full potentional from that modifications.