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It doesn't matter whether its ATR or SPT. If the ECU has a shared table for the Secondary and P2 then that is all you have.
I am looking to put the SII Secondarys in the Secondary and P2 on my car. So just need the table off the SII ecu. I know there are some here that are running them already just dont know if they have changed latency values.
From what I understand, you want to have injectors that at least share latency characteristics in the Secondary and P2 position, you can adjust the cc/min value independantly. So your combination of the RC's and OEMs will be causing you problems, as your latencys values will be being applied to the Secondarys as well.
Suggestion would be to put the "highflowed" yellows in the P2 and standard yellows in the Secondarys.
good discussion and points--i agree on the latency issue. Seems to me that would = a tuning nightmare?
Some Pettit guys are running different injectors once we mounted the bigger pulley for more boost. Before we were on the oem's but at times they were at 100% duty cycle. I didnt like that at all and watched my a/f's reliously.
One member changed to all blues (kept the reds) with good results. I have had confirmed reports that in europe the s2 injectors are good and do actually give a little more power (must be better atomization?) with tuning.
I run a modified yellows per pettit so my latency remains matched but my duty cycles no longer reaches 100%