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n/a to boost. ecu tuning/piggy back

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Old Apr 21, 2012 | 05:29 PM
  #1  
Rotary_Junkie's Avatar
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From: missouri
n/a to boost. ecu tuning/piggy back

Okay. I have a 86 s4 streetport n/a.....wooo!

I want to boost it.....

My question is there a piggy back that I can use to trick my n/a ecu so I can run boost.

My parts so far:
Turbo2 injectors,fuel pump.
Manifold and turbo, bov
Piping,intercooler.
And some sort of piggy back to run it.

Not wanting to change wireing harness or ecu or any of that. Looking for a super easy build. I've got all.these parts free but the ecu tuning is where I'm stuck.
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Old Apr 22, 2012 | 10:33 AM
  #2  
Aaron Cake's Avatar
Engine, Not Motor
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From: London, Ontario, Canada
Short answer is no.

The NA will still run very aggressive timing under boost. You'll need to hammer a lot of fuel in there to prevent detonation. This hurts power significantly. Use a TII ECU (and associated TII AFM and pressure sensor).
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Old Apr 28, 2012 | 03:51 AM
  #3  
natobait's Avatar
Watermelon Engine Builder
Tenured Member 05 Years
 
Joined: May 2010
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From: San Jose,CA
Didn't want to make a new thread that was similar to this, but my question is when going NA to Turbo, are modifications to the sub-frame necessary to fit the turbo?
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Old Apr 28, 2012 | 07:46 AM
  #4  
misterstyx69's Avatar
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From: Smiths Falls.(near Ottawa!.Mapquest IT!)
NO.
the car is basically the same,except with a few upgrades to brakes (in some cases),drivetrain,exhaust.and a few other odds and ends.
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