Hurricane 270 tune difference compared to 300 header tune?

[hpmaniac]

Side note, i was running the Header tune this year and it would still be correcting fuel up to 110% @ 53 lbs key on with the bigger pump.

This just tells me the base tune is off a mile, In the automotive world and cars i tune we like less than 10% correction. Not sure how this system works though but That is a BUNCH of correction. what are you for actual afr on a pull at say 8800-9200 rpm? Nm i see 11.8

 

[fatchance]

The tunes are developed for Cookie cutter components. Start adding to the system to increase air flow, charge temps and more fuel and you are working outside the prescribed range of the tunes. This is why it's so important to Data log to maintain safe parameters.

 

[hpmaniac]

The tunes are developed for Cookie cutter components. Start adding to the system to increase air flow, charge temps and more fuel and you are working outside the prescribed range of the tunes. This is why it's so important to Data log to maintain safe parameters.

I have everything hurricane so it will be interesting to see how much my closed loop has to adjust the tune. Header arrives Friday, installing Friday night and testing Saturday. Ordered a couple helix to try as well. Straight 40 and a 38 42 also a straight 36