LS3 FBY and GM ECU v aftermarket ECU and cable throttle?
Discussion
Very difficult to beat the GM set up on a stock or mildly sorted motor the only downside is getting your head around the tuning software... you have to think in reverse and keep in regular practice, it being quite involved and complex.. although improving slowly I understand.
Aftermarket is much simpler although the better ones might well work out considerably more expensive, GM stuff being so cheap. Tuneablity can be much more user friendly with aftermarket if you play to plan or upgrade.
There will be little difference between them at WOT... the GM defaults to pig rich protection as standard...
Theres a recent interesting thread on Speedtalk about the deeper stuff inside GM LS software... several claiming certain areas/columns dont add up (log files etc) and power is improved when corrected... too much faffing for me personally but if you like that sort of thing....
G luck.
Aftermarket is much simpler although the better ones might well work out considerably more expensive, GM stuff being so cheap. Tuneablity can be much more user friendly with aftermarket if you play to plan or upgrade.
There will be little difference between them at WOT... the GM defaults to pig rich protection as standard...
Theres a recent interesting thread on Speedtalk about the deeper stuff inside GM LS software... several claiming certain areas/columns dont add up (log files etc) and power is improved when corrected... too much faffing for me personally but if you like that sort of thing....
G luck.
My car runs DTA S80 with manual throttle body.
It has spent quite a few hours on a dyno to get the fuelling spot on.
I have one more big upgrade to do to get the most out of the supercharger and a final dyno session.
I'd say to get the car running properly with aftermarket or OEM you will need to get it on a rolling road to get transitional fuelling to an "OEM" feel.
You have to remember these cars are a lot lighter and run different transmissions and final drives to the original intended vehicle so there's always room for improvement.
Either way you will need to spend some money to get the car running to how YOU want to.
The one thing to remember is if you are going to "modify" later on aftermarket is probably the way to go.
It has spent quite a few hours on a dyno to get the fuelling spot on.
I have one more big upgrade to do to get the most out of the supercharger and a final dyno session.
I'd say to get the car running properly with aftermarket or OEM you will need to get it on a rolling road to get transitional fuelling to an "OEM" feel.
You have to remember these cars are a lot lighter and run different transmissions and final drives to the original intended vehicle so there's always room for improvement.
Either way you will need to spend some money to get the car running to how YOU want to.
The one thing to remember is if you are going to "modify" later on aftermarket is probably the way to go.
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