Spark cut RPM limiter

[Soopy]

Hey guys,

Quick one today, I see that spark cut RPM limiters aren't possible with an LS1B PCM.
I'm just curious as to why this is?

Cheers, Soop.

[joecar]

Might be because there will be excess fuel.

[Soopy]

Well yes, But i've always thought it's safe to cut the spark then the fuel?

I know its done allot with Japanese cars, and allot of 2-step launch control programs use spark cut limiters. I was simply curious as to whether or not its a hardware limitation with the LS1B PCM.

[joecar]

IDK if it's a limitation or by design.

[Soopy]

Fair enough then.