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. With the larger diameter of the compressor wheel, a larger turbo inlet pipe will be a must. Eurocode is working on one but I may end up having a custom one fabricated.





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, numbers are AWHP. Tuning is not completely done as we are looking at ways to move more fuel to the injectors. Guys at BMS are very helpful to make this work. To help lower the trims, fuel rail pressure can offset to a certain extent. For now I am satisfied with 22psi without using meth for daily driving but I am still safely working my way up in boost. There is a few options possible to get even more fuel, still need to determine which solution is the best. These charts are done prior the WMI install. Virtual Dyno can be pretty consistant when used properly to evaluate the gain but take it for what it's worth, it does not replace real world numbers. Real dyno numbers are to come as well as 1/4 times to back it up when the WMI will be dialed-in

*In red = 100% stock
*in blue = stock turbo with JB4 @ 20-21psi
*in green = GTX3582 with JB4 @22psi

edit 2019/02/13: blue chart was not with the dtuk but with the jb4



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 effective octane rating, the WMI will help lower the fuel trims due to the added fueling from the methanol when pushing it beyond 25psi for 1/4 mile track use. That solution is not intended for daily driving 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 wires and make everything look clean.





I will evaluate how long does the small 1gal tank last so I may go with something bigger. I was thinking about something like this for a clean look with the pump hidden beneath the tank including a sight level gauge and low level sensor.





Car tax!

yabi

mtlquattro

Thanks man! I really appreciate it. Your car is also very tastefully modded, you are not cutting any corners.

yabi

Thanks mtl, I appreciate that!

ramondoesnotapprove

this is pretty amazing, any updates?

mtlquattro

There is a lot more update on this on AZ

Harry Da Hamster

Nice! Following for updates. The 2.5 gal meth tank lasted about 8 fill-ups for me on my 991 Turbo S. I was on it frequently, but not all the time.