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Tuning Conditions

Posted:
Mon Jul 07, 2014 10:11 pm
by Newbie GT
Guys a thought
My way of thinking is that you would benifit for to retune twice a year with same mods.. Why?
Winter conditions vs summer conditions
Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 10:30 pm
by alexeiwoody
Maybe secure the battery better? If you're finding you have to retune your radio so often

Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 10:43 pm
by Newbie GT
alexeiwoody wrote:Maybe secure the battery better? If you're finding you have to retune your radio so often

That's the dumbest statement you've ever made Alexi
Think about it we get tuned in summer 28 deg plus
Then winter 15 deg near abouts...
Wouldn't there be a factor there with tuning configurations
Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 10:58 pm
by Kekotic
Newbie GT wrote:alexeiwoody wrote:Maybe secure the battery better? If you're finding you have to retune your radio so often

That's the dumbest statement you've ever made Alexi
Think about it we get tuned in summer 28 deg plus
Then winter 15 deg near abouts...
Wouldn't there be a factor there with tuning configurations
Maybe you should get 35 seperate tunes and put a dyno in a temperature controlled room. Then get a tune for every 1 degree between 0-35.....

Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 11:06 pm
by Adrian2627
That's the beauty of ECUs as opposed to carbies. The ECU takes changes in intake temp into account and adjusts accordingly to maintain the correct AFR. You are correct in your thinking that intake temp effects the density of the air and the cooler it is the more potential power can be made. This is why your car feels a little stronger on a cool winter evening as opposed to the moddle of a 40+ day in summer. Where a summer and winter tune would be of use is when you have summer and winter mix fuel. Winter mix has additives to stop the fuel freezing but unless you live in the high country and drive a diesel it's not something that we need to worry about. It could be something diesel Outback/Foz drivers could be interested in but I havn't seen too many of them looking for tunes.
Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 11:07 pm
by Newbie GT
Kekotic wrote:Newbie GT wrote:alexeiwoody wrote:Maybe secure the battery better? If you're finding you have to retune your radio so often

That's the dumbest statement you've ever made Alexi
Think about it we get tuned in summer 28 deg plus
Then winter 15 deg near abouts...
Wouldn't there be a factor there with tuning configurations
Maybe you should get 35 seperate tunes and put a dyno in a temperature controlled room. Then get a tune for every 1 degree between 0-35.....

Maybe you should re read the question
When logically thought about it makes sense ie a winter tune with same mods and a summer tune with same mods
I'm talking road tunes more than dyno
Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 11:25 pm
by alexeiwoody
Newbie GT wrote:alexeiwoody wrote:Maybe secure the battery better? If you're finding you have to retune your radio so often

That's the dumbest statement you've ever made Alexi
Think about it we get tuned in summer 28 deg plus
Then winter 15 deg near abouts...
Wouldn't there be a factor there with tuning configurations
Please explain how that is a dumb statement?
Temperature doesn't affect your radio tuning, it's the power connection to the radio. Maybe your battery is old?

Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 11:31 pm
by Newbie GT
alexeiwoody wrote:Newbie GT wrote:alexeiwoody wrote:Maybe secure the battery better? If you're finding you have to retune your radio so often

That's the dumbest statement you've ever made Alexi
Think about it we get tuned in summer 28 deg plus
Then winter 15 deg near abouts...
Wouldn't there be a factor there with tuning configurations
Please explain how that is a dumb statement?
Temperature doesn't affect your radio tuning, it's the power connection to the radio. Maybe your battery is old?

Ignored . Don't flood thread
Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 11:31 pm
by Newbie GT
Adrian2627 wrote:That's the beauty of ECUs as opposed to carbies. The ECU takes changes in intake temp into account and adjusts accordingly to maintain the correct AFR. You are correct in your thinking that intake temp effects the density of the air and the cooler it is the more potential power can be made. This is why your car feels a little stronger on a cool winter evening as opposed to the moddle of a 40+ day in summer. Where a summer and winter tune would be of use is when you have summer and winter mix fuel. Winter mix has additives to stop the fuel freezing but unless you live in the high country and drive a diesel it's not something that we need to worry about. It could be something diesel Outback/Foz drivers could be interested in but I havn't seen too many of them looking for tunes.
Thanks Adrian
Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 11:32 pm
by Deep Heat
You are aware a decent tune will take into consideration intake temps.
Re: Tuning Conditions

Posted:
Mon Jul 07, 2014 11:33 pm
by Newbie GT
Deep Heat wrote:You are aware a decent tune will take into consideration intake temps.
I am now
Re: Tuning Conditions

Posted:
Tue Jul 08, 2014 8:24 am
by alessandro132
As countless individuals have already said, the ECU can automatically correct for different intake temps, negating the need for two tunes.
Re: Tuning Conditions

Posted:
Tue Jul 08, 2014 9:07 am
by dr20t
Kekotic wrote:Newbie GT wrote:alexeiwoody wrote:Maybe secure the battery better? If you're finding you have to retune your radio so often

That's the dumbest statement you've ever made Alexi
Think about it we get tuned in summer 28 deg plus
Then winter 15 deg near abouts...
Wouldn't there be a factor there with tuning configurations
Maybe you should get 35 seperate tunes and put a dyno in a temperature controlled room. Then get a tune for every 1 degree between 0-35.....

Semantics but that would make it 36 tunes
Re: Tuning Conditions

Posted:
Tue Jul 08, 2014 9:47 am
by Newbie GT
alessandro132 wrote:As countless individuals have already said, the ECU can automatically correct for different intake temps, negating the need for two tunes.
I'm aware of that now
Re: Tuning Conditions

Posted:
Tue Jul 08, 2014 10:07 am
by kiahatsiu
However.
AFR is one thing, but boost and cylinder pressure is another. And that is what is killing our EJs.
Tune in summer for 24 psi..come those 2 degree nights in winter and it will be spiking way past 24. AFR will stay at 11:1 (or whatever) timing might be pulled depending on your tune, but I think the cylinder pressure might be off the charts. I know what ECU's should do, but I like to assume the worst is going to happen.
I think Newbie asked a valid question here.
In your vf52 too case Newbie I think you will be okay. People with big boost high HP tunes may need to consider it. Only because ej257/55s are fragile pieces of shit. Mick and Sean will be okay with their 13mm thick stock bores.