[prophet455]

I know that timing has been discussed many times and I have read a lot of threads on it. Id like to ask if anyone is willing to share any timing maps they may have with their basic engine information so those of us who are firing new engines/combos, can observe not only the numbers but the way you are transitioning from idle and pulling with boost or rpm etc; particularly with a street/strip setup. What is working best for you so to speak. For that matter fuel ratio targets would also be welcome- I want it to be a good resource thread for Pontiac guys trying to get a place to "start". I personally am running holley efi for timing control but more info is always good no matter the system.
I appreciate anyone who is willing to share - thanks

[wreckmastr]

Crickets

[RAIV-Z]

I'll post some pics later of my current timing map and engine info.

[twooldgoats]

My timing map is simple: 32 degrees advanced (for the last several years), except 20 degrees retarded from that while starting.


Methanol air to fuel ratio: 4.1 to 1


Fuel pressure: 100-130 PSI at 8,000 RPM


I love the simplicity of a Roots blower and mechanical fuel injection. Haven't lost a plug or a piston yet.


Jim

[GTOGEORGE]

Originally Posted by twooldgoats

My timing map is simple: 32 degrees advanced (for the last several years), except 20 degrees retarded from that while starting.


Methanol air to fuel ratio: 4.1 to 1


Fuel pressure: 100-130 PSI at 8,000 RPM


I love the simplicity of a Roots blower and mechanical fuel injection. Haven't lost a plug or a piston yet.


Jim

GTO George

[RAIV-Z]

Holley EFI Base Timing Table