Leon Cupra R25

[POPOV]

Wmi

I've had some previous great results running WMI, keeps your engine cool and cleans the carbon build up on the TFSI engine valves.
I won't be taking the WMI into consideration during the mapping of the ECU, rather stay safe and avoid accidents in case the WMI pump decides to stop working.
I've fitted the the WMI nozzle in the throttle body pipe, pre-TB. Not to happy with the location as the WMI can cause the TB to brake, it will creap into the TB electronics and short cut.
The design of the intake manifold prevents me to really mount the nozzle in the intake manifold in a proper way, the intake manifold runners are differently long and thereby the WMI will not manage to atomize equally.
Mounting the nozzle close to the combustion cylinder will ensure the octane boost, mounting it after the intercooler will ensure cooling. I opted for a location somewhere in-between you might say.

 

[who.am.i]

Damn,this thing is going to run WMI

VAG Familia
2016 LEON FR 110kW

 

[POPOV]

Progress

Mounted up the radiator the other day to see what modifications are needed to integrate the intercooler.
Well, it fits but need to move the radiator further away as the engine accessories are touching the radiator fans. Custom, don't you love it

 

[POPOV]

Progress

After several hours of drilling, grinding, cutting and welding I managed to free up the needed space between the coolant radiator and the engine front accessories.
I realized that the AC and radiator core are seated further ahead on the 2.5TFSI as the Intercooler is in the very front.
On the 2.0TFSI engine the intercooler (is in the middle, behind the AC radiator) is in front of the coolant radiator and closer to the engine.

I've also succeeded to mount the intercooler nicely and connect the charge piping, just lack some hose clamps now to finalize it.

Next step is to get the oil cooler in place and rap it up before I can start the engine =) .

 

[Kibby]

Yet again great progress!! if possible, you should video the start up (if it is successful)

 

[POPOV]

Yet again great progress!! if possible, you should video the start up (if it is successful)

Sure will do when it's successful

 

[Kibby]

Sure will do when it's successful

Im sure the budget has gone to all hell at this point?

 

[POPOV]

Im sure the budget has gone to all hell at this point?

My pockets are empty...
Had lot's fun though so far and learned a fair amount of new things along the road.

 

[Kibby]

Ah then thats priceless hahahahah.

If and when you have the car finished and you happen to ever be in or around Belfast let me know would love to see it in person

 

[POPOV]

Ah then thats priceless hahahahah.

If and when you have the car finished and you happen to ever be in or around Belfast let me know would love to see it in person

Sure, if I get over to UK but I'm based in Sweden so the chances are low.

 

[POPOV]

Oil cooler fitting

Among the last major parts are now on as I fitted the oil cooler these last days.

Initially I was thinking of mounting it in the front above the intercooler but there was not sufficient space. After some reading and test fitting I opted for vertical side mounting.
This way oil feed will be at the bottom and fill up the cooler to the top and then return to the engine. This is the most efficient oil cooling set up. To secure proper cooling I'll build an air scoop guide from the front right side of the bumper.

Yes, I'm running a thermostat to assist the temperature oil heating process during cold start up.

Next I'm fitting the new downpipe and connecting it to the existing catback system I have.

 

[POPOV]

Progress

More progress this days as I'm on vacation and weather is bad.

Downpipe being fitted, just look at that smooth transaction between the TTE500 and the APR cast DP.
Some compatibility issues with the gear linkage cables, need to to distance them from the DP as they otherwise will melt.

All excited now, only part left is my oil return line (being custom made for me, waiting...) and the engine is crank ready.

 

[POPOV]

Engine crank test

At last, plan is to crank the engine this Friday
Will run it 15 minutes and then change oil and oil filter. Cutting the oil filter up to check for metal particles to ensure engine mechanic basics are working.

During the test I'll check for leaks and unwanted engine sound.

 

[Kibby]

Remember that video hahaha

 

[JMF894]

This is gonna be so monstrous.....................

 

[who.am.i]

Its going to be one real monster on roads.i smell winter awd fun

VAG Familia

 

[POPOV]

Stayed tuned, I'll follow up with the video

 

[POPOV]

Crank semi progress

Engine cranks, but starter motor seems to lack the power to crank with cylinder compression pressure. Had to remove the sparkplugs to enable the start motor to crank the engine

Oil pressure was achieved and fuel was supplied to the cylinders.
I've spotted a potential coolant leak but no oil or fuel leaks.

I'll move on tomorrow and troubleshoot the starter motor issue.

 

[who.am.i]

Fire that baby wainting for video

VAG Familia

 

[POPOV]

It's alive !

https://www.youtube.com/watch?v=EHYNJ6Q5Quk

After some food and rest in front of the tv I went another for one last test...
Starter motor is struggling but at last it managed to crank enough and start the R25 up. I got surprised it did as I spend quite some time earlier today to get it running and nothing.
Continued checking error codes while the engine was running, all looks good. Then I realized that I was calm despite all the hard work I put into it, probably will get to me tomorrow when I wake up.
Some uneven idle as you can here in the audio but that is due to the missing intake manifold flaps (RFD), that will get mapped out later on.