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Author Topic: The 5120 hack - Running up to 5bar absolute pressure on ME7.x  (Read 329242 times)
britishturbo
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« Reply #60 on: January 30, 2013, 07:41:04 AM »

The 5120 mods survived my 45 minute drive to work fine today... I do have a few slight differences in behaviour to look into though.
I've had LR turn off on me a few times that I need to investigate and it seemed like acceleration enrichment wasn't "quite" right, that needs looked into as well.
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julex
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« Reply #61 on: January 30, 2013, 08:28:51 AM »

Thanks for update. For our application we need the version with "Reducer"? I forget it we have big or small holes in the TBB...
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britishturbo
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« Reply #62 on: January 30, 2013, 08:40:19 AM »

Thanks for update. For our application we need the version with "Reducer"? I forget it we have big or small holes in the TBB...

We have a big hole.
My MAP flange came with big hole and small to big adapter, It fits in the big hole direct :-)
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julex
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« Reply #63 on: January 30, 2013, 08:57:52 AM »

We have a big hole.
My MAP flange came with big hole and small to big adapter, It fits in the big hole direct :-)

Cool, placed an order for one!
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ddillenger
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« Reply #64 on: January 30, 2013, 01:08:26 PM »

Which sensor exactly should one get then /hopping on bandwagon.

vag: 03K 906 051       
bosch: 0 281 006 060
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Bische
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WWW
« Reply #65 on: January 30, 2013, 01:12:26 PM »

This one looks to be the best "Plug and Play" option:

http://www.darksidedevelopments.co.uk/products/vw-4-bar-map-manifold-pressure-sensor-03k-906-051.html

There's more listed here:

http://s4wiki.com/wiki/Manifold_air_pressure#OEM

I'm going to order the DarkSide one, but I do have a crap pile of Motorola/Freescale MPX6400 chips at home I can experiment with...
If anyone (who contributes here lol) wants one let me know and I can send you one.

Thats the one I did get:
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britishturbo
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« Reply #66 on: January 30, 2013, 01:39:40 PM »

I opened up a stock 2.5 bar sensor...
I'm pretty sure I can retrofit a Motorola MPX6400 in there :-)

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ddillenger
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« Reply #67 on: January 30, 2013, 01:44:34 PM »

Well that looks simple as shit. I was expecting something a bit more intimidating to be honest. Huh
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britishturbo
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« Reply #68 on: January 30, 2013, 01:46:52 PM »

Well that looks simple as shit. I was expecting something a bit more intimidating to be honest. Huh

Yeah I wasn't sure what I would find lol.
The epoxy holding it together was a pain though, I had to cut it then dig it out with a screwdriver.
I have to fly to Arkansas in the morning or I would be testing it tomorrow lol.
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ddillenger
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« Reply #69 on: January 30, 2013, 01:49:02 PM »

Does that have an integrated IAT sensor?
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britishturbo
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« Reply #70 on: January 30, 2013, 01:50:46 PM »

Does that have an integrated IAT sensor?

I believe it does... that's the two pins on the bottom section I think.
I'm guessing it's there but not used on the Audi 2.7... the harness only has the 2 wires for the MAP.
Either way it could be retrofitted and keep the IAT I think :-)
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britishturbo
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« Reply #71 on: January 30, 2013, 04:53:48 PM »

I have at least half a dozen of these guys lol

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julex
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« Reply #72 on: February 01, 2013, 09:11:06 AM »

Sweet.

Quick question: IF I installed the 4bar map and only changed the relevant translation constants/tables for V to mbar conversion, I will be ok driving around prior to taking plunge into real conversion?
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phila_dot
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« Reply #73 on: February 01, 2013, 09:18:14 AM »

Yep. I would assume that you're giving up negligible resolution, but other than that it should be the exact same.
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britishturbo
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« Reply #74 on: February 01, 2013, 12:00:26 PM »

Once I get back to PA today and do some more testing I'll know if there's anything else that needs changed.
That and tomorrow I'll try and make a 4 bar sensor... :-)

I'll get xdf and documentation cleaned up and posted this weekend.

For those who don't care about factory fit Summit Racing gas an AEM 5 bar sensor for $63.
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