• USP Motorsports 2.0T FSI big turbo fueling system upgrade available - RS4 injectors, LPFP, HPFP, software

    Tuning direct injected motors often ends up posing fuel system problems especially when considerably exceeding the stock power level. When going to a big turbo setup on a 2.0T FSI motor this is exactly what happens. USP Motorsports has a solution with their big turbo 2.0T FSI fuel system upgrade. The kit comes with RS4 injectors, drop in LPFP (low pressure fuel pump), APR HPFP (high pressure fuel pump), and Eurodyno Maestro tuning suite software with base maps to make it all work.

    Pricing is $2799 and well worth it for those with fueling headaches. Applications are as follows:

    Application Guide:
    VW MK5 GTI 2.0T FSI
    VW MK5 Jetta/ GLI 2.0T FSI
    VW MK6 Golf .:R
    Audi MKII TT 2.0T FSI
    Audi A3 2.0T FSI









    This article was originally published in forum thread: USP Motorsports 2.0T FSI big turbo fueling system upgrade available - RS4 injectors, LPFP, HPFP, software started by Sticky View original post
    Comments 7 Comments
    1. chrisisnapping's Avatar
      chrisisnapping -
      wonder if the FSI cars are running into the same issue the TSI cars are with the LPFP.

      Apparently on extended runs (think air strips) the lpfp shorts out and stops doing its' thing. in fact i think APR has stopped selling their LPFP for that reason.
    1. Sticky's Avatar
      Sticky -
      Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
      Apparently on extended runs (think air strips) the lpfp shorts out and stops doing its' thing. in fact i think APR has stopped selling their LPFP for that reason.
      Any idea why this is happening?
    1. chrisisnapping's Avatar
      chrisisnapping -
      Here's what Arin posted after some back and forth
      Click here to enlarge Originally Posted by ARIN@APR Click here to enlarge
      Yeah, it looks like after we released our Golf R kit and showed a picture of the pump everyone and their kid sister suddenly had a fueling 'solution'. On the TSI it's not doing anything positive. It's not increasing the high pressure fueling system as the LPFP stock is not diving off early, starving the HPFP.

      On the Max R and our in house Golf R we didn't seem to have problems with it either, just like you're saying. We could track the car all day long without issues. But we started getting reports of the pump shutting off in the field on other cars and we began looking for a solution. We have hundreds of customers running our turbo kits, so the sample group was much larger than a handful of customers. We get people who drive every which way, and believe me, that's the best way to quickly figure out if something doesn't work as intended, lol! The main issue was a shut off at high speeds. You're probably not driving fast enough for it to shut off. On ROW cars, forget about it. FSI or TSI, the pumps not going to work at all. A couple minutes in and it's overheating.

      We tested the pump in house on other TSI projects and saw problems with it as well. Some cars may be "fine-ish" but others are going to have problems right away. It's currently not a TSI "Solution" so to speak.

      The pump needs more bits to work correctly. A controller will allow it to run without overheating, but it interprets can messages differently and will not prime the pump when you open the car door after sitting over night. To us, that's not a solution, so we scrapped it and are building our own.

      Bottom line dropping in the pump alone is not a TSI fueling solution.
    1. Sticky's Avatar
      Sticky -
      Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
      Here's what Arin posted after some back and forth
      Interesting so they don't have a solution?

      But USP does?
    1. chrisisnapping's Avatar
      chrisisnapping -
      Click here to enlarge Originally Posted by Sticky Click here to enlarge
      Interesting so they don't have a solution?

      But USP does?
      Yes and no. Strictly speaking for the FSI, APR provides upgraded injectors and HPFP. They found that they can hit their horsepower goals with the stock LPFP.

      They did offer an upgraded LPFP, but as mentioned they found weaknesses (keep in mind that just about every LPFP out there is the same for these cars, just rebranded) so they stopped selling it.

      Only advantage of this USP offer is the customizable tuning.
    1. Sticky's Avatar
      Sticky -
      Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
      Yes and no. Strictly speaking for the FSI, APR provides upgraded injectors and HPFP. They found that they can hit their horsepower goals with the stock LPFP.

      They did offer an upgraded LPFP, but as mentioned they found weaknesses (keep in mind that just about every LPFP out there is the same for these cars, just rebranded) so they stopped selling it.

      Only advantage of this USP offer is the customizable tuning.
      Thanks. Once again, you know your stuff.
    1. chrisisnapping's Avatar
      chrisisnapping -
      Click here to enlarge Originally Posted by Sticky Click here to enlarge
      Thanks. Once again, you know your stuff.
      glad i can helpClick here to enlarge