So I'd like some opinions on the scaling I plan to implement on my map. Stock seals and stock port motor with all the goods water/meth and a GT35R. I'd like to run up to 21 pounds with pump and meth injection so I'm trying to rescale my map by adding more cells to the boost side. Will also save the last cell range as an overboost buffer with full fuel dump and retarded timing.

Anyways using the formula of PSI=PIM/10,000X14.22-14.7 these are the values I've come up with. Anyone want to check my math or throw any opinions or concerns they have into the ring?

Negative measurements obviously being on the vacuum side.

1400=-12.7092
2800=-10.7184
4200=-8.7276
5600=-6.7368
7000=-4.746
8400=-2.7552
9800=-0.7644
11000=0.942
12250=2.7195
13500=4.497
14750=6.2745
16000=8.052
17250=9.8295
18500=11.607
19750=13.3845
21000=15.162
22250=16.9395
23500=18.717
24750=20.4945
26000=22.272

Now if only I could fine a decent basemap for my setup with timing that doesn't scare me to death I'd be all set. And I realize this scaling doesn't mix well with most other maps so, interloping a decent starter map might prove time consuming.

 

Wont your stock ish motor pull more then 12in/hg my bridgeport pulls about 10

Just a thought!

 

Yes you need more vacuum resolution. Go back to default scaling for P1-P10. It will be easiest for driveability. Even a street port can pull at least 15 inches vacuum depending on compression and the port shapes. A really healthy stock port will pull close to 20 depending on running conditions.