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 Post subject: Blow-Thru MAF and DW850cc Injector Scalings
PostPosted: Sun Oct 17, 2010 7:12 pm 
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Newbie

Joined: Mon Oct 29, 2007 12:42 am
Posts: 4
I thought I would try to give back and share my scalings that I did for my setup on my 05 WRX. I have the 16bit ECU so my scalings are scaled down roughly 75%. I have a GT3071R rotated turbo and FMIC and I am running 20psi. I used RR for the MAF scaling tab and it is within 4%. I had changed both of these at the same time and before I was able to do any scaling on the stock injectors or MAF so I just got my MAF scaled properly. My light blue top feed DW850cc injectors are using the stock latencies. Here are my scalings and I hope it helps someone else out.

Injector Flow Constant
639.97

Injector Latency
6.5| 9.0|11.5|14.0|16.5
2.79|1.49|0.98|0.68|0.38




0.75 |0.98 |1.02 |1.05| 1.09| 1.13 |1.17 |1.21| 1.25| 1.29 |1.33 |1.37 |1.41 |1.48 |1.56| 1.64| 1.72| 1.80 |1.87| 1.95 |2.03| 2.11 |2.19| 2.27 |2.34 |2.42 |2.54 |2.66| 2.77 |2.89 |3.01| 3.12 |3.24 |3.36 |3.48 |3.59 |3.71 |3.83 |3.95 |4.06 |4.18 |4.30 |4.41| 4.49 |4.57 |4.61 |4.65 |4.69
3.05| 3.46| 3.73| 4.11 |4.73| 5.35| 5.95| 6.47| 7.05| 7.86| 8.43| 8.93| 10.22| 11.88| 13.06| 14.70| |16.60| 18.45| 20.11 |23.25| 25.85| 29.11|31.02| 35.20| 38.37|43.53| 46.57 |50.14| 57.17| 65.51| 75.27 |86.33| 98.57| 111.98| 126.89| 143.65| 162.39| 182.82| 204.22| 225.55| 245.45| 262.60| 276.02| 285.59| 291.91| 295.86| 298.90| 300.00


0.75 0.98 1.02 1.05 1.09 1.13 1.17 1.21 1.25 1.29 1.33 1.37 1.41 1.48 1.56 1.64 1.72 1.80 1.87 1.95 2.03 2.11 2.19 2.27 2.34 2.42 2.54 2.66 2.77 2.89 3.01 3.12 3.24 3.36 3.48 3.59 3.71 3.83 3.95 4.06 4.18 4.30 4.41 4.49 4.57 4.61 4.65 4.69
3.05 3.46 3.73 4.11 4.73 5.35 5.95 6.47 7.05 7.86 8.43 8.93 10.22 11.88 13.06 14.70 16.60 18.45 20.11 23.25 25.85 29.11 31.02 35.20 38.37 43.53 46.57 50.14 57.17 65.51 75.27 86.33 98.57 111.98 126.89 143.65 162.39 182.82 204.22 225.55 245.45 262.60 276.02 285.59 291.91 295.86 298.90 300.00


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 Post subject: Re: Blow-Thru MAF and DW850cc Injector Scalings
PostPosted: Mon Nov 08, 2010 6:42 am 
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Moderator

Joined: Thu Nov 23, 2006 2:23 am
Posts: 2565
What is the inside diameter of the MAF housing, and what is the highest MAFv (or g/s) that you've tested?

Thanks!

_________________
2005 Legacy GT w/ ATP 3076, IWG, MBC, BCS, BC 272, LC, FFS, OMG
Please don't send questions via PM. Post a thread and send me a link to it instead. Thanks!


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 Post subject: Re: Blow-Thru MAF and DW850cc Injector Scalings
PostPosted: Sun Jul 15, 2012 9:24 am 
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Experienced

Joined: Fri Apr 06, 2007 10:09 am
Posts: 116
Location: France
I usually end with higher latencies than stock using DW850. Somewhere between 0.85 and 0.95 at 14V


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 Post subject: Re: Blow-Thru MAF and DW850cc Injector Scalings
PostPosted: Fri Jul 24, 2015 3:14 pm 
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Newbie

Joined: Sat Nov 19, 2011 4:10 am
Posts: 23
Did anyone have any issues with these parameters?


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