93 Tune - car feels slower.

[newmoon]

Okay folks my son has a 2019 GT A10, only mods are Roush CAI and he is running Nitto DRs. He uploaded a 93 octane tune from one of the very well respected tuners and now swears that his car is slower, tuner says logs are good to go. I'm not sure what to tell him do about it?

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[ice445]

Might be getting a lot of knock now. Have to log it and see.

 

[newmoon]

Might be getting a lot of knock now. Have to log it and see.

tuner did and said it was all good

 

[Goterr0r]

Your not going to get much kick in the pants feeling power wise with a 93 tune on a 18+ car. Its more about torque management being loosened up and shift strategy on a auto car. Any near by track he can run it at? A pass with stock tune and a pass with this tune? Hard to say something is slower without having a baseline to measure against.

 

[casper cobra]

post log to help

 

[ice445]

Your not going to get much kick in the pants feeling power wise with a 93 tune on a 18+ car. Its more about torque management being loosened up and shift strategy on a auto car. Any near by track he can run it at? A pass with stock tune and a pass with this tune? Hard to say something is slower without having a baseline to measure against.

While this is true, I can't imagine a situation where a properly functioning 93 tune would make the car feel legitimately slower.

 

[David Schmidt]

A butt dyno is a fickle thing, subject to our expectations and emotions. If he expects gains from his tune and isn't getting all he expects, maybe it "feels" slower?

 

[Mustang_Lou]

Have him drive it for a while and then switch back to stock. See if he notices anything that way.

 

[Tucker80]

While this is true, I can't imagine a situation where a properly functioning 93 tune would make the car feel legitimately slower.

Get a Ford performance tune and power pack... Had a 21 GT and it was incredibly lazy with it even when using quality gas. Honestly felt like it would lose to a 6 cylinder Camry. Biggest waste of money ever.

 

[robvas]

A butt dyno is a fickle thing, subject to our expectations and emotions. If he expects gains from his tune and isn't getting all he expects, maybe it "feels" slower?

Exactly. Do a draggy run or visit the 1/4 mile track, run both tunes and report back...

 

[JBennett]

Yeah, I've spoken to Lund, Wengerd and PBD and all have said that you really won't feel a performance difference with a 93 tune. Some shift strategy improvements, yes but that's about it. Oh and removing the top speed limiter, if that matters to you.

 

[Nawsad123]

Purpose of the tune is to make the car more efficient in the shifts and fuel delivery. A tune isnt meant to make you go faster. If you want to go faster and have it noticeably different, go forced induction. Outside of that you wont feel a difference of 20-30 hp

 

[NFG_Coyote]

Okay folks my son has a 2019 GT A10, only mods are Roush CAI and he is running Nitto DRs. He uploaded a 93 octane tune from one of the very well respected tuners and now swears that his car is slower, tuner says logs are good to go. I'm not sure what to tell him do about it?

Echoing what others have chimed in with, a stock Gen 3 with a 93 tune and a Roush CAI isn't netting you any gains.

It's really optimizing shift strategy, raising the RPM and speed limiter and reducing the torque management of the A10. Big name tuners have conferred the same story for years.

Was he on all season or summer tires pre-tune? Being on the Nitto DR's may also be contributing to it feeling "slow" since I am sure it's hooking up better on the street than the latter.

A reputable CAI (i.e. PMAS fender well), Long Tubes, E85, and possibly an intake manifold depending on his goals, would really wake that car up, and make close to or a smidge over 500WHP on that 10R.

 

[ZXMustang]

Tell him switch to E85. Thats where the magic happens.

 

[NGOT8R]

I’ve been wondering about this too. I recently made two fill-ups on 93 while on my Flex tune during a 500 mile road trip and the car did feel slower. In addition, it had some pops on occasion between shifts. I haven’t ran the car on my dedicated 93 tune since the tuning process with Lund 3 1/2 years ago, so I don’t know if there would be a huge difference between the 93 tune and the Flex tune. What I can say is, whether I’m running on the Flex tune or E85R tune, the car definitely feels much crisper and quicker with E85 in the tank.

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