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Old 05-02-2004, 09:29 AM   #1
nunyo
Scooby Specialist
 
Member#: 35575
Join Date: Apr 2003
Chapter/Region: South East
Location: Tampa
Vehicle:
'07 Subaru OBS
Silver/Gray

Default I want a piggyback ride!

So I'm starting to look more seriously at the two most popular piggybacks. The E-Manage and the SAFC. Here are my pros and cons.

SAFC
pros:
- ability to add/remove fuel
- bluewire mod allows me to skip an AFR gauge
- Cheap!!!!!

cons:
- relatively limited resolution (correction at 8 rpm points for SAFC-I and 12 points for SAFC-II)
- no ignition tuning options

E-Manage
pros:
- lots more tuning options most of which I wouldn’t have a use for

cons:
- Expensive compared to SAFC

So, am I missing something? Just how important is the ability to adjust timing? I can get the SAFC-I in the Private For Sale forum for under $180. If I go the E-Manage route I'll want the support tool also, taking me right on up to $400 or so. Plus I'll need some way to monitor AFR

Is there enough power to be gained from the addition of timing control to warrant an extra $250 or more? You can probably tell that I'm leaning towards the SAFC. In general I feel like the E-Manage is overkill for me and that I’d be paying for a lot of features that I can’t use. I'm hoping that someone with experience with both can provide some input.
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Old 05-03-2004, 10:11 AM   #2
nunyo
Scooby Specialist
 
Member#: 35575
Join Date: Apr 2003
Chapter/Region: South East
Location: Tampa
Vehicle:
'07 Subaru OBS
Silver/Gray

Default

Well that got thoroughly ignored, I guess then my logic is sound, noone has any counterpoints to offer.
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Old 05-03-2004, 12:12 PM   #3
powerlabs
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Member#: 45790
Join Date: Oct 2003
Chapter/Region: Tri-State
Location: New Jersey
Vehicle:
2006 Corvette C6 Z51
SUPERCHARGED

Default

Nunyo;

Here is my 2 cents worth; I have the S-AFC and I found it crucial to get my engine to even run properly with a J-tube intake (serious bogging at 5500RPM). With an Injen CAI it is still helpful (running +9% more fuel to get a .84V reading off the oxygen sensor). Overall I am very pleased with it and found it to be well worth the money I paid for it.
However I am also looking for some kind of timing advance feature. I am looking at either the Apexi ITC or an ECU reflash.
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