Hybrid GTX3582 turbo upgrade

[mtlquattro]

Hi guys,

I don't post here very often but I wanted to share the progress of my big turbo upgrade. It is an hybrid GTX3582 ball bearing with GEN2 billet compressor wheel. This hybrid turbo in this case means it is a stock housing that is milled to fit a genuine Garrett CHRA. The turbo job was done by SillyRabbit/Eurocode. I am using the CTS front mount intercooler, BMS JB4 for tuning, BMS WMI.

The whole install job took 6hrs including the FMIC. The thing fits bolt on using all the oil/coolant lines and OEM pneumatic WG.

I had some fun using VirtualDyno just to see the gains. As we can see it is pretty significant only using 22psi of boost. Tuning is not completely done as we are looking at ways to move more fuel to the injectors. We have been able to offset the fuel rail pressure to lower the trims. For now I am satisfied with 22psi without using meth for daily driving but I am still working of getting more out of it on pump fuel. These charts are done prior the WMI install. Virtual Dyno is pretty consistant when used properly but take it for what it's worth, numbers are AWHP. Real dyno numbers are to come as well as 1/4 times to back it up.

*In red = 100% stock
*in blue = DTUK with USDM map
*in green = GTX3582 with JB4@18psi
*in yellow = GTX3582 with JB4 @22psi

I have installed the WMI to be able to push this thing even more on the stock fueling. On top of the benefits like better cooling and higher octane rating, the WMI will help lower the fuel trims due to the added fueling from the methanol when I will push it beyond 25psi for 1/4 mile track use. WMI install took another 4-6 hours because I wanted to make sure that all the lines are well hidden within the cabin for the cleanest look. My next step is to dial in the WMI along with perfecting my daily driving map on pump. And do a little clean up under the hood to hide the lines and make everything look clean.

 

[desertstorm]

I have used virtual dyno and it is quite good in showing differences between different tunes. However you should do it in the same gear to get the best results. The turbo seems to spool much like the OE one so thats encouraging. I presume you are using tuning boxes as the engine has not been cracked yet for mapping the ECU. Rick at Unicorn Motor developments is usually on the ball with these new ECU's.

 

[mtlquattro]

The green graph is the one done in 3rd gear so yeah there might be a slight deviation compared to the other ones that are all in 4th gear. When the proper gear ratios are used, error should minimal. What is interesting to see is the total peak gain of 178awhp from stock to gtx3582@22psi both done in 4th gear. Real dyno numbers can also be very off depending on many factors, calibration, correction factor, operator, etc. Quarter mile times is what I find the most accurate to determine absolute power in real world conditions.

The BMS jb4 is used which is more than just a generic tuning box, it allows for boost settings via direct control of the wastegate (no map signal spoofing), fuel pressure offset, A/F ratio offset and timing adaptation (both soon to come), full wmi intergration and fail safe, port injection support.

 

[A12RNX]

I have been following the progress over on the other forum. Getting very excited to see things starting to take progress. When will you’re next 1/4 be?

 

[mtlquattro]

If weather allows for it, last weekend of March is the opening of my local track. More realistically somewhere in April!

 

[mtlquattro]

I made mistake in the legend of the virtual dyno chart: the blue line was not with the dtuk but was with the jb4 at 20psi.

 

[Rogier140]

awesome hope to see some draggy 0-100 100-200 times !

 

[mtlquattro]

Here are some runs I did. Keep in mind that this is on cold pavememt with winter tires so the e.t. can really be improved. Looking at the trap speeds, the car can pull a 10's run when temps get warmer.

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[Rogier140]

Do you have a 100-200 time?
Gives me a better idea of power.
My S3 does 7.5 sec 523 HP 615nm
S4 stock is somewere in 11 sec i believe

 

[mtlquattro]

Do you have a 100-200 time?
Gives me a better idea of power.
My S3 does 7.5 sec 523 HP 615nm
S4 stock is somewere in 11 sec i believe

I have not logged a specific 100-200 times yet, it's not a common benchmark here. I will try to do it when I have a chance. Looking at the trap speeds, taking the weight of the car into account, it makes over 600hp.

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[mtlquattro]

I just realised that I can get the times at any moment of the run in the TrackAddict app so I could calculate a 100-200 time.

11.08sec - 3.64sec = 7.44sec

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[Rogier140]

WoW over 600 HP without a proper tune ?
That are fantastic results already.

 

[mtlquattro]

WoW over 600 HP without a proper tune ?
That are fantastic results already.

You are right, that is without a proper tune. All the logging parameters look super clean.

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[mtlquattro]

Here is a quick update of the setup. So far everything is running strong, logs are clean and power is there! I did some modification in my wmi setup with a 5 port distribution block that will allow me to run a third nozzle in the ecs chargepipe right at the IC outlet. This will give better atomization/distribution/cooling. I still need to install the third meth line and the chargepipe.

I got myself a dragy and did some runs. Keep in mind that this is still on winter tires an cold pavement, there is some room for improvement, at least 2 tenths on the 1/4 mile. There is more boost to come, I am slowly and safely building my way up. For those who can't see the video, the run is 11.03@128.04

//cloud.tapatalk.com/s/5ca419cfa7b0d/1554101800006_001.mp4

100-200km/h:

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[Rogier140]

Are you getting a real tune soon ?