Need some opinions. Is a street tune (while driving and the tuner does a tune with a laptop) or a dyno tune? Some say a dyno tune is for bragging rights, you get a better tune with the road tune do to the actual air flow you getting in is better than the fan setup.
Thanks for the input.
Rsty
Need some opinions. Is a street tune (while driving and the tuner does a tune with a laptop) or a dyno tune? Some say a dyno tune is for bragging rights, you get a better tune with the road tune do to the actual air flow you getting in is better than the fan setup.
Thanks for the input.
Rsty
Street tuning is essential to hit and adjust as many of the various load cells and traffic scenarios as conditions allow. In short, most of dynamic conditions you experience every day can be adjusted on the street.
Dyno tuning allows accurate, safe and fast adjustments at Wide Open Throttle conditions - and, if the tuner has a load absorption dyno you can also address specific load cells/trouble areas
Bottom line is that your tuner should really do both.
Street tuning is essential to hit and adjust as many of the various load cells and traffic scenarios as conditions allow. In short, most of dynamic conditions you experience every day can be adjusted on the street.
Dyno tuning allows accurate, safe and fast adjustments at Wide Open Throttle conditions - and, if the tuner has a load absorption dyno you can also address specific load cells/trouble areas
Bottom line is that your tuner should really do both.
Charlie
OK Charlie..I had the street tune done at the time I had LS6 H&C, UD pulley, LS6 intake and headers installed. The car runs great but it wasn't dyno, so I have no idea how much RWHP I have, so I was thinking of taking it in to have a dyno tune and you are saying this would be fine to do and I may gain more HP. Is this correct?
Thanks,
Rsty
I say both but would have to go with street tune if I had to choose one!
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The tuner who tunes it is the bigger issue, and a dyno tune is 110% effective and complete, if the tuner is experienced, and uses an Eddy Current loaded dyno. This allows the testing to be run in actual weighted and aerodynamic loaded conditions, ensuring that WOT, and all other areas of tuning are covered.
The shops which use a Dynojet simply cannot simulate an accurate real-world condition, and pretty have to street tune them afterwards, just to be able to cover part throttle conditions. This still does not address the issue of inaccurate loading during the WOT testing, but at least they are trying.
The tuner who tunes it is the bigger issue, and a dyno tune is 110% effective and complete, if the tuner is experienced, and uses an Eddy Current loaded dyno. This allows the testing to be run in actual weighted and aerodynamic loaded conditions, ensuring that WOT, and all other areas of tuning are covered.
The shops which use a Dynojet simply cannot simulate an accurate real-world condition, and pretty have to street tune them afterwards, just to be able to cover part throttle conditions. This still does not address the issue of inaccurate loading during the WOT testing, but at least they are trying.
Here is the dyno used by this tuner:
What is your take on this?
DYNAPACK 4000
Before purchasing a dyno, the company spent almost two years researching some of the best dynos out there. The result was the purchase of a Dynapack 4000.The dynapack 4000 is a no compromise dyno. With the Dynapack, we have the potential to tune your vehicle from as little as 400RPM all the way up to the engines redline. The dynapack also offers full steady state tuning, a method used for many years by some of the top tuners; including the maker of your own vehicle. Steady state tuning allows us to build and customize your computers timing curve and fuel maps as well as volumetric efficiency tables. And with this, not only will your vehicle perform at full throttle, but perform just as well under part throttle conditions.
OK Charlie..I had the street tune done at the time I had LS6 H&C, UD pulley, LS6 intake and headers installed. The car runs great but it wasn't dyno, so I have no idea how much RWHP I have, so I was thinking of taking it in to have a dyno tune and you are saying this would be fine to do and I may gain more HP. Is this correct?
Thanks,
Rsty
Rsty,
Yes, have the tuner check the street tune and then roll it under load...you'll have it done and done right!
My opinion is that those are expensive as all get out, and a real pain in the ass to use.
That said, it can do the job, and now we need to determine if the tuner is qualified, and knows both, how to use and operate his dyno, and tune your car well. The ownership of some software and a dyno in no way qualifies anyone to tune vehicles, so let some previously tuned clients with a vehicle like yours tell you what they think.
My opinion is that those are expensive as all get out, and a real pain in the ass to use.
That said, it can do the job, and now we need to determine if the tuner is qualified, and knows both, how to use and operate his dyno, and tune your car well. The ownership of some software and a dyno in no way qualifies anyone to tune vehicles, so let some previously tuned clients with a vehicle like yours tell you what they think.
Thanks Hex,
This tuner is supose to be the best in the area. Their ad boost on this machine getting the best tune.
As Charlie mentioned have my street tune checked then do the load and the best of the two will be done.
Rsty
The tuner who tunes it is the bigger issue, and a dyno tune is 110% effective and complete, if the tuner is experienced, and uses an Eddy Current loaded dyno. This allows the testing to be run in actual weighted and aerodynamic loaded conditions, ensuring that WOT, and all other areas of tuning are covered.
The shops which use a Dynojet simply cannot simulate an accurate real-world condition, and pretty have to street tune them afterwards, just to be able to cover part throttle conditions. This still does not address the issue of inaccurate loading during the WOT testing, but at least they are trying.
Not true as all DynoJets are not created equal. The DynoJet 224 Load Control Dyno employs an eddy current absorption unit and has several methods to properly manage and manipulate loads from the miniscule to stall.
As an example, DynoJet's Load Sweep and Load Step Testing provide us with a variable or steady state loaded evironment, which allows us to focus tightly on each load cell at any throttle position.
Not true as all DynoJets are not created equal. The DynoJet 224 Load Control Dyno employs an eddy current absorption unit and has several methods to properly manage and manipulate loads from the miniscule to stall.
As an example, DynoJet's Load Sweep and Load Step Testing provide us with a variable or steady state loaded evironment, which allows us to focus tightly on each load cell at any throttle position.
Charlie
Absolutely correct Charlie... A standard, stripped-down, no-option "cheapie" Dynojet does not come equipped with load control capabilities. However, the owner of a Dynojet can either purchase their Dynojet with load control capabilities as delivered from the manufacturer OR a standard 248c can be upgraded to the load control components.
Our in-ground Dynojet 248c was ordered from the manufacturer 4 years ago with the load control option already included. It's quite effective and we still perform street AND dyno PCM calibration on each and every car tuned here, as there is only one right way to do some things...
Thanks for all the positive replies. It has made me make my mind up to go for the dyno tune with the best tuner in my area..just need an opening to take it in to him..he is really busy this time of year, my street tune will have to do for now..
Rsty
He should be able to hit all areas of operation with the DP, just get on the schedule.
Apologies to you other guys that ponied up for load absorption-I still believe you are in the 1%, though. I list that as a qualifier for a better dyno tuning shop, because it means you guys are ahead of most of the game, regardless of name, which means very little in qualifications to me.
He should be able to hit all areas of operation with the DP, just get on the schedule.
Apologies to you other guys that ponied up for load absorption-I still believe you are in the 1%, though. I list that as a qualifier for a better dyno tuning shop, because it means you guys are ahead of most of the game, regardless of name, which means very little in qualifications to me.
Thanks HEX...I'm going to email him again tonight and call in the AM to see when he has an opening for me..
Rsty
Dyno tune is a simulation; plain and simple. And the tuning done on a dyno may be so close to optimum that there's no need to risk tuning on the street. But since you asked...
Dyno tune is a simulation; plain and simple. And the tuning done on a dyno may be so close to optimum that there's no need to risk tuning on the street. But since you asked...
I spoke with the tuner and he said to come in and he'll do a base dyno and correct the street tune if need be and redo the dyno..
So I guess I'll be alrght going this way..
Thanks MM..
Rsty
We street tune 100% of the cars I tune. Gives you real world data and the most accurate tuning. We have about 10 miles of deserted road here that I use so traffic isn't a concern here. IMO dynos are not needed but useful in some situtations.
Phil
Charlie said it best when he said Both are needed. With a steady state or load control dyno, you can load and hold cells for optimal power readings, and fine tune certain areas as well as power testing and WOT tesating forthose who want the numbers and the power. You should also know that checking over your work on the street is just as important. Sometimes you miss the little things on the dyno and can adjust them on the street to work better. So I say both.
Corvette Store
Which is better; street tune or dyno tune?
