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  • Member For: 20y 8m 5d
  • Gender: Male
  • Location: N/W Sydney
Ok untill we can remove the turbo and port the waste gate more the minimum we can get away with ATM is 398RWKW @ 15 - 16 psi slightly climbing as rpm increases. Might add a little boost at the start and round it up to a whole 400 just for the number crunchers.

Gee mate I really feel sorry for you with the minimum power you can get away with :bowdown: ..

Seriously though that is an awsum result and the writeup/pictures are very informative :spoton:

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  • Member For: 18y 8m 3d
  • Gender: Male
  • Location: Brisbane

Great to see you got the wheel in motion James.

Does this mean you will be at Willowbank for test n tune this wednesday night!

Cheers Paul

  • Donating Members
  • Member For: 19y 7m 19d
  • Location: Brisbane

Inital runs were in the high 300 low 400 RWKW but boost was rising with zero waste gate command !!

These Plasmaman kits flow a lot of air, I think a external waste gate is most likely the go. Tried split dump and single 4 inch dump both from Xforce but the turbine gas flow was still too high there-for the turbo made more boost at the top end even though the waste-gate was open 100%.

After tuning vonn was able to run a nice 380ish RWKW tune on 15-16psi with a little timing removed, as the fuel supply is still to be sorted (Read not fitted yet).

Will post graphs later

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  • Member For: 20y 2d
  • Gender: Male
  • Location: Mt Waverley

Well done, awesome result. Amazing how much progress has been made with all the R&D gone into the right places.

Looking forward to the final results. Will have some unbelievable power.

  • Donating Members
  • Member For: 19y 8m 23d
  • Gender: Male
  • Location: Melb
Inital runs were in the high 300 low 400 RWKW but boost was rising with zero waste gate command !!

These Plasmaman kits flow a lot of air, I think a external waste gate is most likely the go. Tried split dump and single 4 inch dump both from Xforce but the turbine gas flow was still too high there-for the turbo made more boost at the top end even though the waste-gate was open 100%.

After tuning vonn was able to run a nice 380ish RWKW tune on 15-16psi with a little timing removed, as the fuel supply is still to be sorted (Read not fitted yet).

Will post graphs later

Nice work

To give you a bit of idea.. When I removed my wog cooler, and switched to the nizpro cooler / plenum setup, I could NOT get any less than 17psi boost with 0 duty, and that was after I modified my wastegate the first time..

To control the boost, I had to put a cat back into the exhaust.. Then boost was setup to 15psi, with approx 70% duty at 5000rpm (12psi actuator)

After I removed my turbo the second time, re-ported it MORE, and contoured the port towards the flange of the turbo, opened it right up, really only leaving about 1-2mm of seat left, then put it on the car.. I put it all back together, and I found it peaked LESS boost than before. I had to re-tune it to give it MORE duty cycle than before to bring it back to 15psi..

Then I removed the cat, and crossed my fingers (please no more 17psi with 0 duty)..

And presto, it spiked to 17psi as it come on boost, and the beauty of using closed loop boost control, it stablised back to 15psi boost..

I then retuned it by lowering the duty cycle all over, especially at approx 3500rpm where boost comes on so it doesnt spike past 15psi

Beautiful.. Perfect 15psi boost control :)

EDIT: how much was it opened.. Like my original mistake? or right up leaving 1 to 2mm seat? with conturerd towards the flange... I have no regrets on how big I ported mine.. considering I already saw heat cracks with 3-4mm worth of seat, I though, its just gonna crack anyways at standard size..

Danny

Edited by Headsex

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