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Old 26-08-2013, 03:42 PM
skeurton skeurton is offline
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Join Date: Apr 2012
Location: Hampton, VA
Posts: 11
Default Re: 2011 Mazdaspeed 3 | HFS-4 Install

Quote:
Originally Posted by paveltol View Post
First I thought you have a stock turbo, anyway, you are making very nice numbers.
What gas are you running on? Is that BNR Stage3 turbo you have? If yes, it is exactly the same turbo as I have. And I am in the process of adjusting the HFS4 system right now on my Mazdaspeed6).
Yup, I've got a BNR S3. I'm running on 93 gas from Shell, and use VP M1 meth.

If you're in the process of adjusting things and tuning, here are some tips that might help...

- Skip using any mixture of meth/water and just use straight meth. I tried 50/50 and 70/30 mixtures, and while the bit of water helped cool the BATs, I wasn't able to advance the timing as much. It seems the MZR DISI engine loves the huge octane boost from running 100% meth. I'm up to about 20* of timing and still no knock.

- I'm using 2 nozzles, 0.8mm + 0.9mm

- I'm running the system off IDC only and looked at my datalogs to set the threshold. I wanted it to start around 5-7psi, which was about 36% IDC for me. The threshold trimmer is set at 42% at the 12 o'clock position. One tick mark to the left is 36%.
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