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BF Mk 2, not unopened anymore, not stock turbo anymore


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  • Donating Members
  • Member For: 5y 10m 6d

I haven't got one yet since it's still a kind of work in progress.

Tuner has a fair bit of comparison data. Will see if I can get some.

For example, difference between unopened and built motor = 180rwkw @ 3000rpm

  • 2 weeks later...
  • Donating Members
  • Member For: 5y 10m 6d

More updates.

 

Rear housing swapped to 1.21. A few boost leaks fixed around the plazmaclamps.

 

Apparently it hasn't lost much down low at all. It hits 19psi by 3000rpm. And then hits 610rwkw. 25psi bleeding down to 21psi up top. New boost control solenoid going in to see if it can hold boost up higher.

 

I know I owe graphs, will get them when I pick the car up.

  • Like 4
  • less WHY; more WOT
  • Site Developer
  • Member For: 17y 27d
  • Gender: Male
  • Location: Melbourne

when you get the dyno sheet and post it, it looks like it's time for another thread move :)

  • Puff
  • Gold Donating Members
  • Member For: 10y 3m 7d
  • Gender: Male
  • Location: South Australia

The fact that it's topping out at 21psi on both housings means is probably not a back pressure issue.

 

Will be interesting to see where it ends up with better boost control.

  • Donating Members
  • Member For: 5y 10m 6d

There are still a couple of minor boost leaks they're sorting out. Who'd have thought plazmaclamps would have issues?

 

I'd say the turbine itself is struggling, but maybe a better boost controller will help it hold. 

 

Either way, it is exactly where I want it. Didn't expect it to go over 600

  • Puff
  • Gold Donating Members
  • Member For: 10y 3m 7d
  • Gender: Male
  • Location: South Australia

Haha I hope you've added a few hundred a month extra into your rear tyre budget! 

  • Puff
  • Gold Donating Members
  • Member For: 10y 3m 7d
  • Gender: Male
  • Location: South Australia

I've taken my stock crank well past 600kw and regularly ran it to 7k. Only after hitting 7500+ I had the oil pump issue.

 

I would breathe easy mate and just avoid drive train shocks. Better to load up the drive train, then let it rip, rather than stomp it out of nowhere.

 

Yours will be solid for ages :declare:

  • Like 1

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