I've had a look at the prices for High Pressure Fuel Pump but the cost was a bit steep with Awesome GTI quoting over £2k for one.
They were recommending them for big turbo kits for stock turbo I think I will see if it's really needed.
I will try and not look at TTE700 turbo builds to give me expensive ideas.
I've booked into vmax200 for March.
As a comparison the last time I was there there was a standard pfl RS3 that maxed out at 171mph and mine did 172mph.
Which was a surprise seeing a stage 1 felt faster on the road to stock RS3.
I have been reading through the posts on this thread and you must be very confused as to what you actually need to make your car go quickly, and avoid having to spend wallet melting amounts of cash.... and also end up with a safe tune that can run reliably at Vmax.
First thing......you are planning to run your car flat out at Vmax. This type of sustained high speed driving produces immense stress on an engine and this is where risk of a bad tune or a component not working as it should can potentially result in expensive engine damage.
Having witnessed the results of REVO tuned PFL cars on dyno days (ie; not producing the expected numbers and poor fueling, Note the Revo maps on FL cars are much better) I would strongly recommend that you at least get your car logged or have it checked on a dyno run before the Vmax event.
Tuning the PFL car:
An intercooler upgrade is a must have item for the PFL car as is suffers badly from heat soak after hard driving (bin the crap wavy brakes too Lol)
Best maps for the PFL car in my opinion are either APR (they just managed to develop a decent tune on the PFL car as the FL car appeared), or MRC because they still invest time refining the mapping on the PFL cars while other tuners have moved on to the newer FL models, and possibly Ben White at The Turbo Unit who has a lot of experience with sorting out good PFL cars. The key thing here is the tuners knowledge and ability of being able to bypass the 1.55bar boost limit in the ECU. Most other plug n play and drive away stuff doesn't make the shortlist.
Intakes - the stock airbox is not actually a problem for the lower stages of tune. Larger air intake pipes and a bigger turbo inlet pipe produces good value for money results. Save your cash on the fancy carbon boxes and spend it on the bigger intake pipes (Forge or HG Motorsport)
Exhausts- The secondary decat delete on the PFL car is a must, it just brings the car to life and can help flow when tuning. As for downpipes, I personally think that on the PFL car at stage 2 tune/stock turbo, they do not provide enough benefit for the cost to buy and fit them. I know some owners who have gutted the stock DP (removed the cat internal materials) and re-fitted it with comparable results of a Milltek. The limitation here is the size of the stock turbo on the PFL car which is pretty much maxed out at 450-460ps (my PFL car managed 452ps & 684nm without a DP)
HPFP - Not all stage 2 PFL cars need to have a high pressure fuel pump, it depends on the mapping you have on the car and how hard your injectors are having to work to fuel the map at the lower RPM range. Maps with high torque demand at low RPM (such as MRC maps) would most likely require a HPFP.
Apologies for the long post but if you keep bolting things on without understanding what you are actually trying to achieve, you will end up with an empty wallet and an under performing car.
Good luck at Vmax!