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Old 01-03-2007, 04:58 PM   #1
flwrx
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Default Difference between 2.1 and 2.5 platforms?

What are the differences between Hydra 2.1 and 2.5 platforms?

I would have asked on the hydraems forums but for some reason I am unable to register there.
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Old 01-04-2007, 02:42 AM   #2
poormansporsche
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Ohhhhhhh I know this one! 0.4!

I'd like to know this too, as this is all I could find:

" * Closed Loop Quad Variable Cam Support for both intake& Exhaust cam
* New 2.5 ECU Hardware provides quicker starts
* New nemesis 2.5 software for Hydra 2.5 ECU with more programmable features
* Gear Boost Trim (Trim boost in between gear shifts)
* Fuel and Spark Trim (Trim fuel / spark in between gear shifts)
* TPS Fuel Trim Map
* New decel cut strategy"

cheers

garrett
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Old 01-04-2007, 10:47 AM   #3
THE-95-STi
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anyone know if we are able to swap out for a 2.5 for a small fee?
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Old 01-04-2007, 04:26 PM   #4
flwrx
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Quote:
Originally Posted by PSM-04-STi View Post
anyone know if we are able to swap out for a 2.5 for a small fee?
I would like to know this too. Im guessing no though, as its a hardware upgrade not software.
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Old 01-04-2007, 05:42 PM   #5
poormansporsche
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Someone made mention that you need to sell your 2.1 and buy a 2.5. Don't remember who tho. Can't confirm legitimacy.

cheers

garrett
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Old 01-04-2007, 07:16 PM   #6
jblaine
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There is no upgrade path. You must buy a new 2.5 unit.
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Old 01-05-2007, 12:15 AM   #7
THE-95-STi
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damn that sux
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Old 01-05-2007, 12:58 PM   #8
jblaine
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Yes. Yes it does.
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