Originally Posted By: rockydee
Originally Posted By: deven
Wasnt going to reply to all the dyno comments but will just to clarify why we dyno the way we do.
First we have dyno'd using new oil and we would use the mfg recommended oil after we dyno'd the car with the oil it came in.
After a while we saw a pattern where therewas either no difference or the used oil produced very very minimal increase in hp, maybe since the oil had sheared a bit even though it was still in grade(verified by uoa) and/or maybe the anti wear additives were already activated by heat(complete speculation). So we decided that it was a waste of time, money, resources and wear and tear of equipment and stopped performing dyno on new oil.
As for variations in dyno results, sure its a valid point but in that case it would work both ways where a lot of times RP would be the benefactor of flawed results and we surely would not have a 90-92% success rate. After all it should be a 2 way road. The variances should hurt RP just as much. I know no one especially futuredoc wont believe in this argument but it is what it is.
I would love to perform your experiment futuredoc but we all know that it is not feasible nor financially reasonable to perform 30-100 dynos in a row. Not only would we put undue stress on the dyno but we would probably uncalibrate it and the results would become meaningless. We have to rest the dyno at least an hour after each run to get an optimum amount of equipment life.
Lastly if we performed that many runs my electricity bill would run me into the 5 digit category. I simply cannot afford to do that.
Statistical noise/error call it whatever you want. My bet is if you ran the same exact test leaving the car on the Dyno with a 5 minute rest period the results would be the same. Your testing proves nothing unfortunately. How many of us have to tell you that? But if RP is hiring sales reps you'd be someone worth their consideration. Good effort man!-RD
Believe me, I am one of the lesser fanboys. If you spend enough time in the circles of drag racing like we do, RP will have an army of people to choose from if they needed a sales rep.
Originally Posted By: deven
Wasnt going to reply to all the dyno comments but will just to clarify why we dyno the way we do.
First we have dyno'd using new oil and we would use the mfg recommended oil after we dyno'd the car with the oil it came in.
After a while we saw a pattern where therewas either no difference or the used oil produced very very minimal increase in hp, maybe since the oil had sheared a bit even though it was still in grade(verified by uoa) and/or maybe the anti wear additives were already activated by heat(complete speculation). So we decided that it was a waste of time, money, resources and wear and tear of equipment and stopped performing dyno on new oil.
As for variations in dyno results, sure its a valid point but in that case it would work both ways where a lot of times RP would be the benefactor of flawed results and we surely would not have a 90-92% success rate. After all it should be a 2 way road. The variances should hurt RP just as much. I know no one especially futuredoc wont believe in this argument but it is what it is.
I would love to perform your experiment futuredoc but we all know that it is not feasible nor financially reasonable to perform 30-100 dynos in a row. Not only would we put undue stress on the dyno but we would probably uncalibrate it and the results would become meaningless. We have to rest the dyno at least an hour after each run to get an optimum amount of equipment life.
Lastly if we performed that many runs my electricity bill would run me into the 5 digit category. I simply cannot afford to do that.
Statistical noise/error call it whatever you want. My bet is if you ran the same exact test leaving the car on the Dyno with a 5 minute rest period the results would be the same. Your testing proves nothing unfortunately. How many of us have to tell you that? But if RP is hiring sales reps you'd be someone worth their consideration. Good effort man!-RD
Believe me, I am one of the lesser fanboys. If you spend enough time in the circles of drag racing like we do, RP will have an army of people to choose from if they needed a sales rep.