21/01/19 - Post 2 of 3 - Development for THE mqB
The UGP aim for this programme it to focus on a specific, productionised Stage 3 turbo and tune package for MQB S / GTI / R / VRS models.
Months of dyno and road software development with different vehicles mean we can now offer:
- Excellent response and general drivability
- Safe, reliable and repeatable
- Best-in-class Stage 3 / 4 performance for MQB
- Minimise number of components required
- Represent great value : performance ratio
Keeping the solution at 2.0bar (29psi) for the stock EA888 gen3 block is important for longevity, especially when the V5 turbo has a broad range and will naturally ramp hard, gunning for 35psi+ (reserved for built motors). Careful implimentation of the actuator control model, load scaling and air mass table manipulation got this under control, carving a 'near tabletop' log result. The V5 spools to full boost around 3600 rpm on AWD. We used a 4 bar map sensor during development, but the stock 3 bar sensor can work at this level.
More boost of course equals more fuel demand, but for simplicity we didn't want more than a high pressure pump added for the stock motor on 98 octane. Stable boost helps here and enabling port injection to pre-prime through the rev range ensures AFR doesn't lean out. Lots of scope left here for higher boost applications with a low pressure pump upgrade.
Aside from regapping the stock plugs, nothing was changed here hardware wise. Over 60 ignition tables were dynamically and progressively advanced over stock, factory knock detection left in place and even with warm ambeint temperatures, very little correction is apparent, so therefore extremely safe. This leaves lots on the table for further advance with higher octane via race fuel or water meth. Switchable ignition mapping was also implemented through drive modes in suitable conditions like ethanol blending, meaning Race is really Race!
Throttle mapping, cam phasing / timing, torque limitation management (not just disabled). These all equate to amazing low speed and part throttle drivability to go with great wide open throttle performance. A true daily for the track.
What to expect from the UGP V5 Stage 3 - 2.0 bar package (R / S3 DSG models) :
- 300awkw / 500nm+ for the stock motor @ 2.0bar
- 0-100 in low to flat 3 seconds
- 10 second 1/4 mile
- 100-200kmh in 7 seconds or less
Basic hardware modifications:
- Turbo Technics V5 turbo
- Upgraded air intake
- High flow downpipe
- Uprated intercooler
- Autotech hpfp
We are very excited to share our next and final post on the V5 'Results' - coming soon.
Pre-orders are now being taken for the V5 with a few slots on the first shipment remaining.
Underground Performance - Drivability First 👍