Strange happenings on the dyno - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

4x4le · 11-06-2013, 08:26 AM

Like i said earlier, your boost level is a detrement to hp. 10-12 is all that turbo is going to be beneficial to. If you and your friend took boost readings in your hot pipe your pressure numbers would be vastly different.

But the main thing, the dyno yall used, especially the way they had it setup did not give you ANY data worth analizing. You wouldnt be putting this much thought into this topic if the printer was a 3 year old with a red and blue crayon would you? Because that might as well have been.

Even if a dynojet is setup the way it should be (which this one was not), the way smoothing works constantly "alters" the numbers it should be displaying. If the car is strapped down in a way that it rocks back and fourth like the straps are loose or springy it screws up smoothing. If your suspension squats and releases it screws up the smoothing. If the tires are bouncy ect.

You were given inconclusive data that you probably paid good money for. Sorry, thats a shame, and it was probably a new shop or new to them dyno and they dont know how to use it or dont care and they had a dyno day just to pay the bills.

11-06-2013, 08:26 AM	#11
4x4le Zilvia FREAK! Join Date: Nov 2008 Location: Manchester, Tn Posts: 1,253 Trader Rating: (1) Feedback Score: 1 reviews	Like i said earlier, your boost level is a detrement to hp. 10-12 is all that turbo is going to be beneficial to. If you and your friend took boost readings in your hot pipe your pressure numbers would be vastly different. But the main thing, the dyno yall used, especially the way they had it setup did not give you ANY data worth analizing. You wouldnt be putting this much thought into this topic if the printer was a 3 year old with a red and blue crayon would you? Because that might as well have been. Even if a dynojet is setup the way it should be (which this one was not), the way smoothing works constantly "alters" the numbers it should be displaying. If the car is strapped down in a way that it rocks back and fourth like the straps are loose or springy it screws up smoothing. If your suspension squats and releases it screws up the smoothing. If the tires are bouncy ect. You were given inconclusive data that you probably paid good money for. Sorry, thats a shame, and it was probably a new shop or new to them dyno and they dont know how to use it or dont care and they had a dyno day just to pay the bills.