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[Dead_Reckoning]

Question: Is a New Dyno needed when changing a Stage 1 for a Dogherty?

Presently my SE103 has and HD Stage 1 AC and has beend Dyno Tuned.
I am using a PC III
Fuel to Air presently is 13:1 across the board from 2000 to 6200

The Doherty is very similar to the Stage 1, but has an approximately 3" High and roughly the same diameter as the opening in the HD Stage 1.
My biggest concern is "What will it do to my Fuel:Air Ratio?"

Should I simply just go spend $300 for a retun?

Thanks
DR

[Doc 1]

Question: Is a New Dyno needed when changing a Stage 1 for a Dogherty?

Presently my SE103 has and HD Stage 1 AC and has beend Dyno Tuned.
I am using a PC III
Fuel to Air presently is 13:1 across the board from 2000 to 6200

The Doherty is very similar to the Stage 1, but has an approximately 3" High and roughly the same diameter as the opening in the HD Stage 1.
My biggest concern is "What will it do to my Fuel:Air Ratio?"

Should I simply just go spend $300 for a retun?

Thanks
DR

No need to dyno again.
Doc

[Dead_Reckoning]

No need to dyno again.
Doc

Thanks
Installed it yesterday and no issues at all.
Certainly appears to improve throttle response and maybe a tad more yank.

DR