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Go Back   TDIClub Forums > VW TDI Discussion Areas > TDI Power Enhancements

TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old September 21st, 2010, 06:32   #1
Little Pickle
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Default MAP upgrade?

Hi folks

Now I have my 1z Hybrid turbo working correctly and the car is running great after sorting my dodgy N75 valve and I'm very happy with its performance.

Does anybody know if my Bleached Bora Hybrid will top out my 2.5bar MAP sensor in the ECU? I was thinking about swapping the sensor for a MK4 sensor to milk that turbo for every last drop of air. Anyone know how far I can push this hybrid, 1.5, 1.6 bar?

I havent a boost gauge setup yet which I know is pretty vital.

Thanks in advance
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Old September 22nd, 2010, 01:17   #2
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1.5 bars is the max you can push on that turbo...so 2.5 bar map sensor is fine
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Old September 22nd, 2010, 01:29   #3
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It will allow you to be able to push out half a bar more pressure with out going into limp mode but your turbo will grenade in the very near future..........if you wanted to boost to say 20psi which some have done in the good old days with out too many problems you can pipe in a bleed valve about 4" away from you ecu/map with the same out come!!
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Old September 22nd, 2010, 08:42   #4
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The bleed has to be no more than 4inches away from the ECU?
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Old September 22nd, 2010, 12:21   #5
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Sorry yes 4 inches not 4 feet
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Old September 22nd, 2010, 12:31   #6
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Does the distance really matter? Mines about half way between manifold and ecu.
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Old September 22nd, 2010, 13:12   #7
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Yes as it will react better at 4' away from the ecu/map sensor than where you have it.........where you have your bleed is usually where one would fit a dawes divice / mechanical boost controller.
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Old September 23rd, 2010, 05:36   #8
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I moved it to 4inches away this morning and boy did I notice a difference!!
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Last edited by Little Pickle; October 18th, 2010 at 09:27.
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