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Old Feb 22, 2009 | 08:56 PM
  #61  
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do i just follow the guide for the jdm map but use this sensor instead? I plan to go with meth injection and a red turbo soon and i want to be able to have a sensor that will work for bigger boost in the future.
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Old Feb 23, 2009 | 08:30 AM
  #62  
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For 94170015 (and probably other EVO VIII ECUs) that is pretty much how you do it. You'll need to change the scaling in Evoscan for this sensor though. You may also need to swap two wires around in the MDP connector. It's very easy to do though.

I'm using PSI=(x-52)*0.2368 for datalogging boost pressure at my local ambient air pressure of 12.4 PSI. The equivlent scaling to the JDM 3bar scaling would be PSI=0.2368*x-12.4 (change 12.4 to be your local atmospheric pressure).
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Old Mar 3, 2009 | 07:38 PM
  #63  
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Originally Posted by 03whitegsr
For 94170015 (and probably other EVO VIII ECUs) that is pretty much how you do it. You'll need to change the scaling in Evoscan for this sensor though. You may also need to swap two wires around in the MDP connector. It's very easy to do though.

I'm using PSI=(x-52)*0.2368 for datalogging boost pressure at my local ambient air pressure of 12.4 PSI. The equivlent scaling to the JDM 3bar scaling would be PSI=0.2368*x-12.4 (change 12.4 to be your local atmospheric pressure).
good info. very interesting as i have mated a Motorola/Freescale MPXH6400A 4Bar inside of my stock 1bar map, sealed it, used mrfred's exact egr stuff to avoid cel's, and did a bunch of snooping/calculations to get my evoscan scaling of .23496x-14.5! lol. i'm gonna try the (x-bit) thing and see how that works.

scaling is very close to yours . i'm about .5/1psi under my defi mechanical boost gauge. can't really tell/damn defi.

i have a feeling the omnipower is a freescale. here's a log/works great though:
Code:
 TPS	 Load	  RPM	 WB	 BAT	  MAP
14.90	30.94	5261.72	13.61	14.15	-12.62
14.90	30.94	5078.13	13.55	14.15	-12.39
14.90	32.50	4945.31	13.55	14.08	-12.39
14.90	32.50	5062.50	12.94	14.08	-12.39
14.90	32.50	5066.41	12.94	14.08	-12.15
14.90	30.94	4988.28	12.94	14.08	-12.15
14.90	32.50	5046.88	12.22	14.08	-12.15
14.90	32.50	5007.81	12.22	14.08	-12.15
14.90	31.56	4988.28	12.08	14.08	-11.92
14.90	33.13	4996.09	12.08	14.08	-11.68
14.90	31.88	4968.75	11.91	14.08	-11.45
14.90	30.63	4972.66	11.91	14.08	-11.68
14.90	28.75	4945.31	12.61	14.08	-11.45
16.08	27.81	4945.31	12.61	14.15	-11.68
23.14	32.50	4929.69	22.83	14.15	-10.74
25.10	27.81	4910.16	22.83	14.15	-9.80
30.20	33.13	5007.81	22.83	14.15	-6.04
35.69	56.88	4964.84	0.00	14.08	-4.16  <--wtf lc1 lol
38.43	69.38	4921.88	0.00	14.08	-2.52  <--wtf lc1 lol
44.31	78.75	5054.69	0.00	14.08	-1.81  <--wtf lc1 lol
46.27	86.25	4949.22	14.19	14.08	-1.11
50.20	90.00	5050.78	14.19	14.08	-0.40
55.29	96.88	5027.34	12.58	14.01	0.54
60.39	104.06	5066.41	12.58	14.01	1.48
67.84	110.63	5121.09	13.05	14.08	2.42
70.98	119.69	5109.38	13.05	14.08	3.12
74.90	126.56	5160.16	11.86	14.01	4.06
78.82	135.00	5195.31	11.86	14.08	5.24
82.35	142.19	5226.56	11.86	14.01	6.18
85.49	148.44	5253.91	13.01	14.01	7.59
88.63	160.31	5312.50	13.01	14.01	9.23
92.55	169.06	5347.66	12.45	14.01	10.41
95.69	179.38	5382.81	12.45	13.93	12.52
98.04	194.38	5421.88	12.70	14.01	14.64
99.61	207.81	5511.72	12.70	13.93	16.98
100.00	225.31	5558.59	11.86	13.86	19.33
100.00	257.81	5617.19	11.86	13.86	21.92
100.00	301.88	5683.59	11.48	13.86	25.21
100.00	313.75	5769.53	11.48	13.86	26.85
100.00	305.00	5839.84	11.48	13.86	26.62
100.00	301.88	5914.06	10.39	13.86	27.32
100.00	298.75	5964.84	10.39	13.86	27.79
100.00	298.13	6082.03	10.82	13.86	27.09
100.00	300.94	6148.44	10.82	13.86	27.09
100.00	301.88	6179.69	10.97	13.86	27.09
100.00	300.94	6277.34	10.97	13.86	27.09
100.00	301.56	6371.09	10.97	13.86	27.56
100.00	299.38	6398.44	11.01	13.86	26.85
100.00	296.56	6500.00	11.07	13.86	27.09
100.00	297.50	6589.84	11.07	13.86	27.09
100.00	293.75	6644.53	11.07	13.86	27.09
100.00	295.31	6738.28	11.07	13.86	27.32
100.00	292.19	6792.97	11.03	13.86	26.85
100.00	292.81	6835.94	11.03	13.86	27.09
100.00	291.88	6957.03	11.17	13.86	27.09
100.00	290.94	6964.84	11.17	13.86	27.09
100.00	290.31	7117.19	11.17	13.86	26.85
100.00	289.06	7128.91	11.17	13.86	26.62
100.00	289.69	7238.28	11.23	13.86	26.62
100.00	286.88	7289.06	11.23	13.79	26.85
100.00	286.88	7339.84	11.23	13.79	27.09
97.25	283.44	7390.63	11.23	13.86	25.68
70.98	255.00	7390.63	11.23	13.86	19.80
35.29	73.13	7433.59	11.17	14.08	-2.99
16.47	18.44	7148.44	11.17	14.08	-10.74
15.29	8.75	6937.50	11.50	14.08	-11.92
15.29	22.19	6726.56	11.50	14.15	-12.15
15.29	6.25	6531.25	11.45	14.08	-12.39
15.29	25.31	6296.88	11.45	14.08	-12.62
15.29	30.94	6097.66	11.45	14.08	-12.62
15.29	30.94	5929.69	12.74	14.15	-12.62
14.90	30.94	5613.28	12.38	14.15	-12.62
14.90	30.94	5402.34	12.38	14.08	-12.62
sorry for super-length.

EDIT: tephra's MAP averaging is on.

EDIT2: load dropping was due to me testing out a K&N 6" maf adapter with an RF-1009 filter (1" bigger diameter on the top of the conical frustrom than the popular RU-4600 that comes with the K&N Typhoon intake. i have come to the conclusion that those filters just don't flow enough up top for larger the stock frame/stock internaled turbos even though they may work great on the stocker) since this log, i have went back to my Agency Power 4.5 billet adapter and a K&N RU-3480. car *feels very stong/not choked up top now. will log later for real answer heh...

Last edited by evoredy; Mar 3, 2009 at 08:07 PM.
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Old Mar 3, 2009 | 08:26 PM
  #64  
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Would you all recommend the Omni over the JDM for stock like turbo users (green)?
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Old Mar 3, 2009 | 08:29 PM
  #65  
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Originally Posted by Appauldd
Would you all recommend the Omni over the JDM for stock like turbo users (green)?
it all depends on how much boost you're gonna run. if you plan over 29PSI, then yes. if not, the JDM is perfect and more supported with the SD stuff at this time.


EDIT: ok so i was 4PSI off...correction: 33PSI lol.

Last edited by evoredy; Mar 4, 2009 at 03:43 PM.
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Old Mar 3, 2009 | 08:32 PM
  #66  
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Great ! I don't see myself running over 29psi any time soon. No E85 stations near by and I refuse to run meth in the event of a failure. Thanks.
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Old Mar 3, 2009 | 08:37 PM
  #67  
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I have one of these in my Integra, it is plug and play for hondas.
but I have heard about the housing cracking under high boost.

there is plenty of people upset with that b/c usually you cant drive when they crack.
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Old Mar 3, 2009 | 08:52 PM
  #68  
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Originally Posted by brokeazzlos
I have one of these in my Integra, it is plug and play for hondas.
but I have heard about the housing cracking under high boost.

there is plenty of people upset with that b/c usually you cant drive when they crack.
interesting. when i pulled the stock EVO map apart, theres a cylindrical port where the stock PCB mounted sensor went into. what i did was hog the port out a thousandth or so in diameter(guesstimate) and put 2 thick viton orings on the motorola sensor. then I pressed it into the built-in cylindrical port like pressing in an FIC injector lol/lotsa twisting and lubrication heh/j/k. this created a damn good air-tight seal. i filled whole thing with strong epoxy and let is set. the housing will never see pressure unless the sensor/o-ring combo pops out/highly unlikely because its surrounded/swimming in epoxy. i have since run multiple high-boost runs/27PSI and have not seen failure yet. the log above was after 2 months of abuse.

i'm sure omnipower has a good method [for the EVO map]. if it's anything like mine, it should be fine. they might have even engineered a spacer (which i wanted to do) that holds down the sensor and allows no wiggle room. i saw the the o-rings are *necessary in creating an air-tight seal for the DIY setup. a sleeve would be better though...

just my 2 cents.
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Old Mar 4, 2009 | 07:30 AM
  #69  
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I'm pretty sure they are just reusing the stock case. I don't think it would be any more likely to crack then tha JDM 3-bar.
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Old Mar 4, 2009 | 10:22 AM
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Originally Posted by 03whitegsr
I'm pretty sure they are just reusing the stock case. I don't think it would be any more likely to crack then tha JDM 3-bar.
+1.

i looked over some homemade honda creations and they look prone to high-boost failure. can't speak for the honda omnipower ones, but the mitsu unit is basically perfect for upgrading using the freescale (or similar bodied) sensor. you can actually pry the top cover off mine while installed and its still sealed lol. even take away the epoxy/spacer and the o-ring/port mating should hold at least 10-15psi itself maybe more.
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Old Mar 4, 2009 | 11:48 AM
  #71  
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Originally Posted by evoredy
it all depends on how much boost you're gonna run. if you plan over 29PSI, then yes. if not, the JDM is perfect and more supported with the SD stuff at this time.
The Mitsu JDM 3 bar can log up to 33psi.

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Old Mar 4, 2009 | 12:45 PM
  #72  
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Originally Posted by GST Motorsports
The Mitsu JDM 3 bar can log up to 33psi.

what turbo might this be?
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Old Mar 4, 2009 | 01:14 PM
  #73  
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Originally Posted by exvitermini
what turbo might this be?
hta35r
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Old Mar 4, 2009 | 01:15 PM
  #74  
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Originally Posted by GST Motorsports
hta35r
4th gear I presume?
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Old Mar 4, 2009 | 01:18 PM
  #75  
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Originally Posted by GST Motorsports
The Mitsu JDM 3 bar can log up to 33psi.

I've verified this as well in my logs.
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