lund tune w/o mods worth it?

[Strokerswild]

^ This.

Plus datalogging is arguably more real-world than when strapped to a chassis dyno, IMO.

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[CCCP1999]

You don't always have the option to get a tune done locally that is worth what you paid for. I would take a mail order tune from someone who has the experience and knows what they are doing over someone who doesn't have as much experience, but has a Dyno. Being able to datalog the car through the device takes away a lot of the necessity of needing a Dyno.

Matt

I agree. Not taking my car to any old place. I have the best tuner one could wish for, but he is a LS tuner and never fooled with the new 5.0.

 

[Redmoe]

Anyone logged a lund tune for 91? At wot I am see constant positive knock that reaches the mid 3s by 6k rpm. I think I may just have cappy gas here in az since the stock tune would run up to the mid 2s.

 

[hockale1]

You don't always have the option to get a tune done locally that is worth what you paid for. I would take a mail order tune from someone who has the experience and knows what they are doing over someone who doesn't have as much experience, but has a Dyno. Being able to datalog the car through the device takes away a lot of the necessity of needing a Dyno.

Matt

 

[CCCP1999]

For being stock my GT gets up pretty good. I can break the tires loose without a problem from a roll at about any speed in S- mode +. Kinda like to see the changes after a tune and CAI.

 

[Ugly John]

How often can you go back and forth with the tune? Is there a risk to this?

I had my 15 V6 tuned and loved it. Now I'm running a GT PP in autoX, and tunes are not legal in F-street so I would need to be able to de-tune it about once a month to race.

 

[Ugly John]

Just bumping this up to see if anyone has an opinion on going back and forth with the tune....

 

[beefcake]

my 2011 car i probably flashed about 500 times over 5 years, lol

the 2015 has probably been flashed 100

flash away

 

[CCCP1999]

my 2011 car i probably flashed about 500 times over 5 years, lol

the 2015 has probably been flashed 100

flash away

You must be a flasher.

 

[Sasuketr]

For being stock my GT gets up pretty good. I can break the tires loose without a problem from a roll at about any speed in S- mode +. Kinda like to see the changes after a tune and CAI.

I was feeling the same way but last night i uploaded the lund flex fuel tune running on 93 octane. The best way to feel the difference is put it on 3rd gear on lower rpm and go wot. The car has more low end and mid range torque, pulls really good.

 

[Hayson]

For being stock my GT gets up pretty good. I can break the tires loose without a problem from a roll at about any speed in S- mode +. Kinda like to see the changes after a tune and CAI.

How has the car been and behaved after the jlt Cai and Lund tune?

 

[Idaho2018GTPremium]

I have yet to see ample evidence that a tune only is worth much for real acceleration. I think American muscle did a video a while back with a stock '18, then a 93 octane tune and picked up less than 0.1 seconds in the 1/4, and less than 1 mph on the same day (close to the same time, so likely close DA). I don't remember the exact gains, but he was into the 11s IIRC both times.

Anyone care to show a before and after: stock tune acceleration runs vs. 93 tune only and list the DA? E.t.s and trap speed doesn't mean much unless you know the DA. Someone could run their bone stock car at 2000' DA, run a 12.4 @ 115 mph, then a month later tune it, and run a 12.0 @ 118 mph, but at 1000' DA, and say "yep, my tune gave me 4 tenths and +3 mph". When in reality, it was worth only half that because the lower DA made the car faster.

EDIT: Wow, I just saw that the person before this post resurrected a 3.5 year old thread! Dig deep!

 

[Zinc03svt]

I have yet to see ample evidence that a tune only is worth much for real acceleration. I think American muscle did a video a while back with a stock '18, then a 93 octane tune and picked up less than 0.1 seconds in the 1/4, and less than 1 mph on the same day (close to the same time, so likely close DA). I don't remember the exact gains, but he was into the 11s IIRC both times.

Anyone care to show a before and after: stock tune acceleration runs vs. 93 tune only and list the DA? E.t.s and trap speed doesn't mean much unless you know the DA. Someone could run their bone stock car at 2000' DA, run a 12.4 @ 115 mph, then a month later tune it, and run a 12.0 @ 118 mph, but at 1000' DA, and say "yep, my tune gave me 4 tenths and +3 mph". When in reality, it was worth only half that because the lower DA made the car faster.

EDIT: Wow, I just saw that the person before this post resurrected a 3.5 year old thread! Dig deep!

Depends what you are comparing. A manual car is not generally going to pick up much from just a pump tune. So yes, in that example you are correct. Also the driver of the manual car can greatly affect the outcome. But, a corn tuned 18 should pull a pump car. All things being equal.

Take a 18 gt base pp1 a10 car. Buddy’s non tuned (non drag mode) was running 12.4-12.7’s @ 112-113 mph @ 2500-2600 DA. With justa tune on base E85 I ran two 11.9’s @ 118 mph at same track and DA (same day/time). E85 is been shown to make about 35-40 whp by itself not counting the A10 tuning to drag mode. In this case, you are incorrect that a tune can make much difference. 5 tenths and 5 mph is a good net gain in my book.

 

[Idaho2018GTPremium]

Depends what you are comparing. A manual car is not generally going to pick up much from just a pump tune. So yes, in that example you are correct. Also the driver of the manual car can greatly affect the outcome. But, a corn tuned 18 should pull a pump car. All things being equal.

Take a 18 gt base pp1 a10 car. Buddy’s non tuned (non drag mode) was running 12.4-12.7’s @ 112-113 mph @ 2500-2600 DA. With justa tune on base E85 I ran two 11.9’s @ 118 mph at same track and DA (same day/time). E85 is been shown to make about 35-40 whp by itself not counting the A10 tuning to drag mode. In this case, you are incorrect that a tune can make much difference. 5 tenths and 5 mph is a good net gain in my book.

Not really the same thing. I asked for before and afters of the same car same driver with DA data. You're comparing different cars and different drivers and tuned on E85. I was referring to a 93 octane tune.

 

[Performance nut]

Depends what you are comparing. A manual car is not generally going to pick up much from just a pump tune. So yes, in that example you are correct. Also the driver of the manual car can greatly affect the outcome. But, a corn tuned 18 should pull a pump car. All things being equal.

Take a 18 gt base pp1 a10 car. Buddy’s non tuned (non drag mode) was running 12.4-12.7’s @ 112-113 mph @ 2500-2600 DA. With justa tune on base E85 I ran two 11.9’s @ 118 mph at same track and DA (same day/time). E85 is been shown to make about 35-40 whp by itself not counting the A10 tuning to drag mode. In this case, you are incorrect that a tune can make much difference. 5 tenths and 5 mph is a good net gain in my book.

I'll add to that. The E85 tune is just a different animal entirely but the tune overall changed my car up. Though I have a base car so that may be more substantial than those who have upgraded cars.

Not really the same thing. I asked for before and afters of the same car same driver with DA data. You're comparing different cars and different drivers and tuned on E85. I was referring to a 93 octane tune.

I don't drag race so I wasn't logging 0-60 times and what not but I can say there were changes in how the car handles on the base 91-93 tune. A10 shifts are much better. The car mechanically works better now. So from an experience perspective, it is a better car. Power wise, I'm going to safely say it isn't going to be a huge change. Though don't take my word for it... from the man himself

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