Pl and calculating lag

[TT/Ameasap]

I don't know if there is a certain way to calculate the lag time in PL, but I figured to start from 0 vacuum time to full boost time. Then subtract higher time from lower time to get result.

 

[TT/Ameasap]

1.3 seconds for the first couple runs.
I'm gonna play with my spool fuel a little and see what happens. Feels good tho.

 

[aminga]

Wouldn't it be from the hit of the throttle.

 

[TT/Ameasap]

2.5 from start of TPS to full boost.
Nobody ever calculate this before? I know lag is a relative term for many, but I thought there would be a better way of checking besides stall speed.

 

[jpwalt1987]

I always figured mine from zero boost/zero vacuum to full boost.

 

[aminga]

To tell the truth I never really worried about it. If you're comparing runs If your comparing mods just pick a method and stick to it.

FWIW the ISAC controller has a timer that starts when the controller enters boost control mode (RPM and TPS targets are hit). I counted 0.8 seconds from that to 21 PSI.

 

[TT/Ameasap]

To tell the truth I never really worried about it. If you're comparing runs If your comparing mods just pick a method and stick to it.

FWIW the ISAC controller has a timer that starts when the controller enters boost control mode (RPM and TPS targets are hit). I counted 0.8 seconds from that to 21 PSI.

I'm not worried about it. Just wanting to see real world results with our PL and mods/tune.