dolt
Well-Known Member
Not to pick a bone with HDDon but an HD dealership is the last place I would go for tuning or for tuning advice. Most dealers will push the SEPST, which is not a bad system but dealerships don't have a very good history when it comes to tuning. Most dealership tuners will download a map, tweak it a bit and call it good. Not saying all dealer tuners are incompetent; there are some good ones but they are not the norm.
Here are five questions you can ask your tuner to see what his skill level is without being conspicuous. These are 5 simple questions that a good experienced tuner can and will be able to spit out the answers correctly and without a great deal of thought and the whole time your asking them the questions it will seem like a general conversation of you getting a little knowledge of the tuning procedures from him. If your tuner can't answer all, or any, of these questions it's time for you to search out another shop.
1) How long will my bike be on the Dyno to tune?
(answer) 4 to 5 hours
2) How many Dyno runs will you have to make to finish a tune?
(answer) 50 to 70 on a average
3) What are people talking about when they say you have to SYNCHRONIZE the VE tables?
(answer) By Synchronizing the VE Table to the Fuel Table your telling the ECM the new air flow through the motor from the mods you made.
4) I heard something about a Step Test, can you tell me what that is?
(answer) The Step Test is a program in the winPEP 7 software (Dyno Software) that allows us to sample the AFR longer for a better reading at 2%, 5%, 7%, 10%, and 15% Throttle Position. This is where the bike lives so we want a good AFR sample to make our edits.
5) Do you change the AFR Table to one value as you tune?
(answer) Yes, 13.2. This makes it easier to synchronize the VE Table.
If your tuner can answer these simple questions chances are (99%) you will get a good tune. I hope this will give you all a better idea who your trusting your $20,000.00 investment with.
Here are five questions you can ask your tuner to see what his skill level is without being conspicuous. These are 5 simple questions that a good experienced tuner can and will be able to spit out the answers correctly and without a great deal of thought and the whole time your asking them the questions it will seem like a general conversation of you getting a little knowledge of the tuning procedures from him. If your tuner can't answer all, or any, of these questions it's time for you to search out another shop.
1) How long will my bike be on the Dyno to tune?
(answer) 4 to 5 hours
2) How many Dyno runs will you have to make to finish a tune?
(answer) 50 to 70 on a average
3) What are people talking about when they say you have to SYNCHRONIZE the VE tables?
(answer) By Synchronizing the VE Table to the Fuel Table your telling the ECM the new air flow through the motor from the mods you made.
4) I heard something about a Step Test, can you tell me what that is?
(answer) The Step Test is a program in the winPEP 7 software (Dyno Software) that allows us to sample the AFR longer for a better reading at 2%, 5%, 7%, 10%, and 15% Throttle Position. This is where the bike lives so we want a good AFR sample to make our edits.
5) Do you change the AFR Table to one value as you tune?
(answer) Yes, 13.2. This makes it easier to synchronize the VE Table.
If your tuner can answer these simple questions chances are (99%) you will get a good tune. I hope this will give you all a better idea who your trusting your $20,000.00 investment with.
