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Author Topic: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)  (Read 46642 times)

Joseph Davis

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #30 on: April 15, 2009, 09:56:34 PM »

3" shorter is a big drop in gearing, and less surface area to bite.  The gearing probably won't hurt you, LS trans being what it is, but the loss of tire size might. 

Make sure your shit is aligned for drag racing, please.

BoostForLife

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #31 on: April 16, 2009, 03:38:05 AM »

3" shorter is a big drop in gearing, and less surface area to bite.  The gearing probably won't hurt you, LS trans being what it is, but the loss of tire size might. 

Make sure your shit is aligned for drag racing, please.
I have 2 weeks to replace my front right control arm (faster and cheaper than the bushing itself which is completely gone and there's just a bolt in a big ass hole.) after that the car is getting alingment done. What should I go for on Dropzone Coilovers/stock struts/Skunk2 camber kit combo for camber angle?  -2 or 3 degrees or more?
if im getting those slicks, then I would want to hit some low 13s high 12s at about 12-14lbs of boost.
Let me know on what camber angle I need, if you can. Want to do it right the first time around.
Thanks for your help so far.
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Joseph Davis

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #32 on: April 16, 2009, 10:34:56 PM »

You want 0 degrees at full suspension lift.

Watch how high your nose lifts when launching (full lift).  0 degrees is where you get the biggest tire contact patch.  Put the two ideas together.

Who cares what your camber is at rest?  Let it fall wherever it falls.

onlyflash944

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #33 on: April 16, 2009, 11:26:38 PM »

Who cares what your camber is at rest?  Let it fall wherever it falls.


if its a street machine, it might not be a bad idea to keep it near -2* for tire wear and drivability.

but then again, if you have as many 13" 14" wheels and tires laying around it shouldn't be aproblem




jd knows what hes talkin about on this stuff, so listen
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BoostForLife

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #34 on: April 17, 2009, 03:56:17 AM »

im running 15" VW back from 1991 magnesium wheels right now, so finding used tires in good condition that are low profile is hard. Just bought the control arm tonight, so it's getting replaced tomorrow and will schedule the appointment for alignment tomorrow as well.
Turns out it's some bitch selling the slicks for her husband. Wouldn't budge on the price any, wants 150 firm. So, I'll just fuck the slicks and replace my tires that are past bald (half the wire is gone) and get it aligned good. Save some money for a paint job.

I think I should write a big fucking RHMT in black/red all over my car after putting some more primer to camouflage it's current fucked up paint. Wiill need to represent my ghetto ass school and show those other rich fucks how RHMT does it.
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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #35 on: February 04, 2010, 04:40:16 AM »

Hey! new here but just thought Id link you guys to mouser.com

http://mouser.com/ProductDetail/Freescale-Semiconductor/MPXH6300AC6T1/?qs=sGAEpiMZZMvhQj7WZhFIALpLlyV3lh9La0LFm3%2f55js%3d
They are almost always cheaper on 90% of your electrical needs!
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92CXyD

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #36 on: February 04, 2010, 10:36:21 AM »

Hey! new here but just thought Id link you guys to mouser.com

http://mouser.com/ProductDetail/Freescale-Semiconductor/MPXH6300AC6T1/?qs=sGAEpiMZZMvhQj7WZhFIALpLlyV3lh9La0LFm3%2f55js%3d
They are almost always cheaper on 90% of your electrical needs!

Not bad where is your Intro post. ;D

kgx

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #37 on: February 04, 2010, 04:16:53 PM »

newark.com also sells both the 3 and 4bar sensors for ~$8.

menards sells RTV silicone in a 10.3oz caulk tube for $5 in the fireplace/wood stove section. works really well for making silicone charge pipe couplers too. just wet some fiberglass cloth with the stuff and mold it around a tube.
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HiProfile

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #38 on: February 07, 2010, 04:51:16 AM »

Hey! new here but just thought Id link you guys to mouser.com

http://mouser.com/ProductDetail/Freescale-Semiconductor/MPXH6300AC6T1/?qs=sGAEpiMZZMvhQj7WZhFIALpLlyV3lh9La0LFm3%2f55js%3d
They are almost always cheaper on 90% of your electrical needs!

Hmm...I may be buying some for a change. Jew I have a bunch of stock cases I've collected to make/sell when the season is in swing, that will be perfect. Their latching relays are more expensive, but only by pennies.




BTW link to the obd0 MAP thread:

http://www.realhomemadeturbo.com/forum/index.php?topic=9870.0
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HiProfile

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #39 on: March 22, 2013, 12:25:46 PM »

I'm posting this since it took forever to find my old post with this info (I also fixed an typographical error I never noticed).
(http://www.realhomemadeturbo.com/forum/index.php/topic,15832.msg206996.html#msg206996)




The sensor values:

2.5bar:
min = 0.204 @ 20 kPa (.2bar)
max = 4.896 @ 250 kPa (2.5bar)
"koeo" voltage = 1.86v (calculated)

3bar:
min = 0.306 @ 20 kPa (.2bar)
max = 4.912 @ 304 kPa (3bar)
"koeo" voltage = 1.63v (calculated)

4bar:
min = 0.200 @ 20 kPa (.2bar)
max = 4.800 @ 400 kPa (4bar)
"koeo" voltage = 1.19v (calculated)


« Last Edit: March 22, 2013, 12:30:05 PM by HiProfile »
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dem gurls need some boobz! -Engloid

caged

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #40 on: April 05, 2013, 05:35:52 AM »

Does anyone know of a 5 bar sensor in the same style? I need a bit more head room as im almost out of map.
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92CXyD

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #41 on: April 05, 2013, 07:55:03 AM »

Does anyone know of a 5 bar sensor in the same style? I need a bit more head room as im almost out of map.

No 5-bar, but Motorola-Freescale makes a 7-bar:
MPXH6700AC6U
 MPXH6700AC6T1

 :noel:

walter

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #42 on: April 05, 2013, 08:15:06 PM »

what's part# for 2.5Bar?
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92CXyD

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #43 on: April 06, 2013, 12:41:15 AM »

what's part# for 2.5Bar?

Walter read this thread  :noel:

Better pics this time around for sure. This needs to be stickied.

And just to add to the tech and make it a little easier for some of the lazy peeps, here are the digi-key part numbers.

2.5 bar
Part # MPX4250AP-ND
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MPX4250AP-ND

3 bar
Part # MPXH6300AC6U-ND
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MPXH6300AC6U-ND

4 bar
Part # MPXH6400AC6T1CT-ND
http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MPXH6400AC6T1CT-ND

walter

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #44 on: April 07, 2013, 07:30:49 PM »

why sensor looks different to the one you used in the first page? , last year i got too the same sensor but right now it looks different.



 :-\
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HiProfile

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #45 on: April 08, 2013, 08:10:47 PM »

Looks like some info was just wrong. Here's the 2.5 BAR option, added them all to my 1st post:

Part # MPXH6250AC
http://www.digikey.com/product-detail/en/MPXH6250AC6U/MPXH6250AC6U-ND/951825
« Last Edit: April 08, 2013, 08:21:32 PM by HiProfile »
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caged

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #46 on: April 09, 2013, 05:53:03 AM »

Does anyone know of a 5 bar sensor in the same style? I need a bit more head room as im almost out of map.

No 5-bar, but Motorola-Freescale makes a 7-bar:
MPXH6700AC6U
 MPXH6700AC6T1

 :noel:

Thanks 7 bar will work great. I suck at finding electronics, any links I cant find them from those numbers. Cheers mate.
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walter

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #47 on: April 09, 2013, 07:27:32 AM »

Looks like some info was just wrong. Here's the 2.5 BAR option, added them all to my 1st post:

Part # MPXH6250AC
http://www.digikey.com/product-detail/en/MPXH6250AC6U/MPXH6250AC6U-ND/951825

great! thanks.

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HiProfile

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Re: DIY Bolt-On Map Sensor Upgrade (Motorola-Freescale)
« Reply #48 on: April 10, 2013, 09:46:34 PM »

Does anyone know of a 5 bar sensor in the same style? I need a bit more head room as im almost out of map.

No 5-bar, but Motorola-Freescale makes a 7-bar:
MPXH6700AC6U
 MPXH6700AC6T1

 :noel:

Thanks 7 bar will work great. I suck at finding electronics, any links I cant find them from those numbers. Cheers mate.

Their only 7bar will not fit in a Honda case. The correct p/n is mpx5700asx or mpx5700ap for their only ported 7 Bar sensor that reads in absolute. MPXH6700AC6U is no longer offered by any vendor, if it even existed at all. It may have been a Motorola p/n, if it was it was d/c'd when Freescale took over.
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