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  • Member
  • Member For: 12y 8m

ok so I've had my 07 bf mkII phoon for coming up three years and am now quite bored with the horsepower (stock)
so after a bit of reading and a few phone calls I've come up with a game plan.

ive already ordered (b here in couple weeks) a process west intercooler and intake, aswell as a process west surge tank and high pressure pump. next pay I'll be buying an exhaust and injectors and then it will b off to get tuned.

QUESTION: my understanding, from what ive heard from other owners, is that I'll b quite happily achieving about 450hp at the treads, then other people have told me valve springs are a MUST, and wastegate flapper mod is also a MUST. can somebody please shed some light on this? cheers :]

p.s limit on what the bf conrods can put up with? if anybody knows?

  • Bronze Donating Members
  • Member For: 13y 11m 2d

Valve springs at 450hp is about the limit of safety really. Some people go further some less. And at that power a wastegate port will hold boost much flatter through the top end. For Eg I have almost the same mods and can't run under 17psi up top cause of too small of wastegate

  • Member
  • Member For: 12y 5m 22d
  • Gender: Male
  • Location: 2145 nsw

Do the valve springs wel your at it and waste gate flapper mod one of my valve springs didn't show no sign of float wel on the dyno n let go dropped a valve n smashed a piston = rebuild... And the waste gate to control boost you will get a happy 350kw like mine after that with the mods you do very streetable and a chit load of fun

  • I am dissatisfied with my current employment situation
  • Donating Members
  • Member For: 18y 8m 26d
  • Gender: Male

Save money on exhaust and flapper mod, just get a hiflow cat. You also have the last of the bfs so you have the strong rods

Edited by freeze_dk
  • Member
  • Member For: 12y 8m

Ok sweet cheers guys. So what valve springs is everyone running? I was looking at the atomic 80 pounders. Also I was told today that there's a dude in Perth that does external gate mods to these cars and ends up quite functional apparently. I was thinking of doing that and plus having a screamer which I've wanted since day dot anyways. then no over boosting dramas either. While im on the topic has anyone done an oil pump upgrade to their car?

  • I am dissatisfied with my current employment situation
  • Donating Members
  • Member For: 18y 8m 26d
  • Gender: Male

Not worth getting a external gate setup if you only want 450hp

  • Member
  • Member For: 11y 11m 21d
  • Gender: Male

My bf is manuel has exhaust ,waste gate port ,nizpro kit has 365rwkw for 4 years no issue and is

A unopened engine But yes getting oil pump is considered just depend on cost

  • Member
  • Member For: 12y 5m 22d
  • Gender: Male
  • Location: 2145 nsw

Oil pump gears is the thing that fails in them I done mine only because I put a new timing chain in so what the hey! Do it and don't worry bout it

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