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N326 ECU for spark with carb?

Old 05-09-17, 08:52 PM
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N326 ECU for spark with carb?

I know I can use a N326 ECU to control spark with a carb for fuel., But what is the spark limit of the N326 ECU? I've heard 7800 rpm. Is that spark or fuel cut? Thanks guys...
Old 05-10-17, 12:41 AM
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Well since you have a Carb now..it wouldn't be fuel cut..
The ECU would no longer control the Pressure to the Carb or the actual amount of fuel now to the engine.
Old 05-10-17, 09:29 PM
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I'm getting ready to go carb. I am trying to find out if a S4 N/A N326 ecu has a limiter? If so, would it be a fuel or spark cut? Can I use this ECU for 9-9500 rpm?
Old 05-17-17, 08:15 AM
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I don't believe any fc ecu has a RPM cutoff
Old 05-21-17, 07:09 PM
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They do have a rev limiter in the form of a fuel cut. OEMs always cut fuel because this is catalyst friendly. (Nowadays they also cut the throttle plates shut, which sounds very odd, like a rev limiter bounce being played in reverse)

I don't know what the ignition would do if it runs "off the map" though.
Old 06-28-17, 10:14 PM
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An S5 ecu can rev to 9 without issues.
S4 I doubt you can. I think it fuel cuts at 8 and wont rev past that.
Old 06-30-17, 08:45 AM
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The majority of car makers cut injector cycle, but ignition stays sparking.

My guess is you will be fine.


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