Dyno tune or street tune

[Chevy366]

Street tune .
Street or track is where you race not on a stationary Dyno .

[r.barn]

Street tune for drivability

If you want max power from set-up you have to dyno tune.

You can set air/fuels with wide band, but you dont know what
differences you are getting at WOT with timing changes unless on a dyno.....

Take actual dyno number with grain of salt, but it will tell you if your
timing changes add any power or actually might have hurt.
Other wise you're just guessing on best timing at WOT

you need BOTH.

[George C]

i do all street tunes but, recently ive gained access to a dyno. now with my street tune vs dyno ive gained 16rwhp by tweaking the car on the dyno. Street tune is best for overall but the dyno tells you if what your doing works best or doesnt.

i found out that by removing 2* timing i gained 1rwhp. this isnt much to brag about but hey its one more HP.


handhelds are a joke, and mailorders get you in the bleachers of the ball park.

[LsxCody]

Personally I wouldn't do a mail order. Do a live street tune since its you're DD

[farmtruc]

i found out that by removing 2* timing i gained 1rwhp. this isnt much to brag about but hey its one more HP.


handhelds are a joke, and mailorders get you in the bleachers of the ball park.

HP can go up and down due to temps changes in the air and oil/water, so to say pulling 2 degs and gaining 1hp is misleading.
You can run a truck 3 times on the dyno, not change a thing and get 1hp variations. You can get 3hp variations with no changes to the tune.
That's why most shops charge a price for several dyno pulls, not just one, to be sure they get the highest and most complete dyno pull.

I have a question without turning this members post into a debate.
Why do you say mail order tunes just get your truck in the ballpark?

I would say with a good mail order tuner, you're truck's tune is 98%.
Saying it's in the ballpark is like saying the tune is just good enough for the truck to be mobile. When in fact, almost all of the mail order tunes we send out are more than capable of going out and racing and never needing a retune. Meaning, the tune is so close, it's not worth changing the calibration. Hundreds, thousands of tunes and retunes are on the street running great!
Even 4 years ago, my mail order tune was put against a dyno proven tune and my mail tune was .01 slower in the 1/4 mile. This was a lightly modded Magacharged SS truck. .01 difference could have been traction issues, not enough cool down or the pcm just adjusting.
Granted, we do have our issues here and there and we try to care of them, but if the tune is way off, there's usually a reason.

Take Ducky's and Jon's trucks, they are both sd tuned, I sent a mail/email tune for a big jump in injector change, both trucks were very close.
Ever try tuning the 60lb siemens injectors via mail, and on top of that sd tuned, it's very hard, but the tune was pretty close.

It's misleading to say mail order tunes are far from close, when in fact a lot of fast trucks are on the street. Sure I'm a little sensitive when comments are posted like that, but that's how I make my living, providing great mail order tunes that work and are very close to a dyno tune.

Let me know.

btw, thanks for considering us as your tuner! With the mods your truck has, a nice performance street tune would be just right for your truck.
We'll hook up the wideband and optimize timing, a/f ratio and make the transmission shift like it's supposed to for truck enthusiasts.

later,
allen

[George C]

HP can go up and down due to temps changes in the air and oil/water, so to say pulling 2 degs and gaining 1hp is misleading.
You can run a truck 3 times on the dyno, not change a thing and get 1hp variations. You can get 3hp variations with no changes to the tune.
That's why most shops charge a price for several dyno pulls, not just one, to be sure they get the highest and most complete dyno pull.

I have a question without turning this members post into a debate.
Why do you say mail order tunes just get your truck in the ballpark?

I would say with a good mail order tuner, you're truck's tune is 98%.
Saying it's in the ballpark is like saying the tune is just good enough for the truck to be mobile. When in fact, almost all of the mail order tunes we send out are more than capable of going out and racing and never needing a retune. Meaning, the tune is so close, it's not worth changing the calibration. Hundreds, thousands of tunes and retunes are on the street running great!
Even 4 years ago, my mail order tune was put against a dyno proven tune and my mail tune was .01 slower in the 1/4 mile. This was a lightly modded Magacharged SS truck. .01 difference could have been traction issues, not enough cool down or the pcm just adjusting.
Granted, we do have our issues here and there and we try to care of them, but if the tune is way off, there's usually a reason.

Take Ducky's and Jon's trucks, they are both sd tuned, I sent a mail/email tune for a big jump in injector change, both trucks were very close.
Ever try tuning the 60lb siemens injectors via mail, and on top of that sd tuned, it's very hard, but the tune was pretty close.

It's misleading to say mail order tunes are far from close, when in fact a lot of fast trucks are on the street. Sure I'm a little sensitive when comments are posted like that, but that's how I make my living, providing great mail order tunes that work and are very close to a dyno tune.

Let me know.

btw, thanks for considering us as your tuner! With the mods your truck has, a nice performance street tune would be just right for your truck.
We'll hook up the wideband and optimize timing, a/f ratio and make the transmission shift like it's supposed to for truck enthusiasts.

later,
allen

my reason for mailorder is ballpark. no way in hell can you dial every combo without actually tuning the truck. your typical mods yes sir, radical combos no way in hell. just to many variables

[farmtruc]

my reason for mailorder is ballpark. no way in hell can you dial every combo without actually tuning the truck. your typical mods yes sir, radical combos no way in hell. just to many variables

ok that's cool, that's more specific, heavy mods, of course it's harder, it takes multiple tries.

later,
allen

[George C]

ok that's cool, that's more specific, heavy mods, of course it's harder, it takes multiple tries.

later,
allen

yupp now were on same page.