Lowering intake temps.. ?

[TopherSho]

Meth is cheaper...

Yes very true, but you need to tune specifically for the meth since it alters A/F?  You also have to sure it is always full as if you run out things can go boom.  I think with the cooling setup above it would be a install and forget about it deal, no specific tuning needed.  You can run or not run based on temps and what you have going on and not have to worry about it.  If it is a cool morning/winter day, don't turn it on, warm summer day and you want to play, turn it on (or better yet have the system on a temp switch so it could turn on/off on it's own..)

I see it sort of like old school pushrod cars.  Real easy to just throw a nitrous plate under the carb.  More expensive and time consuming is to throw intake/cam maybe heads at it.  They can net the same end result, but one is there all the time, the other you have to keep full and buy consumable based on how much you use it.

I really think it depends on the setup really... I called and had a very in depth conversation with Snow Performance...

You can tune the car to where you want it, and then add Meth just to cool the charge down... so if you run out of meth, you just run as if the charge wasn't being cooled... and according to them, our ECU is able to adjust for a small amount of meth without needing AFR tuning...

Where you get into trouble is tuning the engine to the nth degree while spraying. Then if you run out of meth your base fuel cannot support the timing your running and then the possibility of Kaboom is real...

ohhh I see the difference here now.  You were not saying use a full spray of meth that the tune would depend on,  but a spray of meth just enough to keep the spark higher than without.  get the gains without blowing cash on all the super awesome window washer fluid..

[StealBlueSho]

Basically spray just enough to keep the IATs from pulling spark.

[TopherSho]

Basically spray just enough to keep the IATs from pulling spark.

ok this has legs for me,  so do you end up metering MORE as the rpms go up?  or is it a constant low rate spray?  if you are not tuning for it how is the spray metered ?

[AJP turbo]

Basically spray just enough to keep the IATs from pulling spark.

ok this has legs for me,  so do you end up metering MORE as the rpms go up?  or is it a constant low rate spray?  if you are not tuning for it how is the spray metered ?

It isnt....every log i have seen, the people spray the hell out of the meth and the tuner relies on the 02 sensors to pull at least 20% of the fuel to achieve commanded lambda(lambse). I would not prefer that method in my car

[StealBlueSho]

Spray is metered by the controller/nozzle combo you use...

It's a constant rate of flow triggered by boost but this is dependent on the kit purchased..

According to Snow the ecoboost can handle this with its fuel trims without additional tuning.. although I am sure tuning for it can optimize the fuel trims no doubt...

The meth kits are boost based not rpm based.

[TopherSho]

Now i can see why the recommendation for it .. hmm ok,  maybe next tax season!

[StealBlueSho]

Basically spray just enough to keep the IATs from pulling spark.

ok this has legs for me,  so do you end up metering MORE as the rpms go up?  or is it a constant low rate spray?  if you are not tuning for it how is the spray metered ?

It isnt....every log i have seen, the people spray the hell out of the meth and the tuner relies on the 02 sensors to pull at least 20% of the fuel to achieve commanded lambda(lambse). I would not prefer that method in my car

Pretty much what I have seen... I am betting a lower flow rate on the meth would provide the results I am looking for..

[AJP turbo]

Basically spray just enough to keep the IATs from pulling spark.

ok this has legs for me,  so do you end up metering MORE as the rpms go up?  or is it a constant low rate spray?  if you are not tuning for it how is the spray metered ?

It isnt....every log i have seen, the people spray the hell out of the meth and the tuner relies on the 02 sensors to pull at least 20% of the fuel to achieve commanded lambda(lambse). I would not prefer that method in my car

Pretty much what I have seen... I am betting a lower flow rate on the meth would provide the results I am looking for..

Yeah but i would still tune for it

[Colorado-SHOBro]

I've been giving the whole IAT issue some thought as of late too.
One question for AJP- Is it possible to have a tune that keeps the fans on after the key is off? or possibly with accessory on?

In my previous platform i had a track tune that would keep the fans on full speed for 5 minutes after you turn the key off if the coolant temps were over a certain temp.

If this could be done you could at least keep some air moving when your sitting in the staging lanes and evacuate some hot air preventing heat soak a little.

[92BlackGT]

I'm at E45 now with a preliminary log showing strong rail pressure.....

Stay tuned....

oh dang!

If I could pump my own gas i'd be all over a E15,e20,e25 tune. In a heartbeat.. 

My pump and rails seem pretty good.  BUT I would have to have the Gas jockey understand what the heck I was saying.   as it is I have to eagle eye the dam attendants to make sure they put in 92 as it is.  it is too much hassle ..

weird law

[SHOdded]

They did try to push Oregon to self-serve
http://www.nj.com/news/index.ssf/2015/05/why_nj_could_soon_be_only_state_without_self-serve_gas.html

[StealBlueSho]

I've been giving the whole IAT issue some thought as of late too.
One question for AJP- Is it possible to have a tune that keeps the fans on after the key is off? or possibly with accessory on?

In my previous platform i had a track tune that would keep the fans on full speed for 5 minutes after you turn the key off if the coolant temps were over a certain temp.

If this could be done you could at least keep some air moving when your sitting in the staging lanes and evacuate some hot air preventing heat soak a little.

Yes it is possible when the car in accessory mode. The LMS race tune is setup to do this, however most people ask to turn it off because for a daily driven tune, those fans are LOUD.

[TopherSho]

I've been giving the whole IAT issue some thought as of late too.
One question for AJP- Is it possible to have a tune that keeps the fans on after the key is off? or possibly with accessory on?

In my previous platform i had a track tune that would keep the fans on full speed for 5 minutes after you turn the key off if the coolant temps were over a certain temp.

If this could be done you could at least keep some air moving when your sitting in the staging lanes and evacuate some hot air preventing heat soak a little.

Yes it is possible when the car in accessory mode. The LMS race tune is setup to do this, however most people ask to turn it off because for a daily driven tune, those fans are LOUD.

hmmm are there not two fan speeds?  5 minutes of low speed fan with the car off would not be horrible?    interesting thought?

[AJP turbo]

I've been giving the whole IAT issue some thought as of late too.
One question for AJP- Is it possible to have a tune that keeps the fans on after the key is off? or possibly with accessory on?

In my previous platform i had a track tune that would keep the fans on full speed for 5 minutes after you turn the key off if the coolant temps were over a certain temp.

If this could be done you could at least keep some air moving when your sitting in the staging lanes and evacuate some hot air preventing heat soak a little.

HHmm....The way I see it in the tune is with key in the on position the fan should stay on according to the coolant temp vs ambient temps....So if the key is on it will try to maintain coolant temps as if it was running....I'm not sure about the accessory position.

If I would set the fan control to come on at an earlier temp for track use then they would run all the time and I don't think that's what you want...Like setting them to come on at 150 degrees coolant  then when turn the key on the fans would run until the coolant dropped to 150 but then when the car is on coolant would always be above that and the fans would never shut off...The fans are not high and low speed...It's variable and runs at a percentage that you set of max speed for things like coolant temp, ambient temps, trans oil temp and A/C head pressure.

[Colorado-SHOBro]

I've been giving the whole IAT issue some thought as of late too.
One question for AJP- Is it possible to have a tune that keeps the fans on after the key is off? or possibly with accessory on?

In my previous platform i had a track tune that would keep the fans on full speed for 5 minutes after you turn the key off if the coolant temps were over a certain temp.

If this could be done you could at least keep some air moving when your sitting in the staging lanes and evacuate some hot air preventing heat soak a little.

HHmm....The way I see it in the tune is with key in the on position the fan should stay on according to the coolant temp vs ambient temps....So if the key is on it will try to maintain coolant temps as if it was running....I'm not sure about the accessory position.

If I would set the fan control to come on at an earlier temp for track use then they would run all the time and I don't think that's what you want...Like setting them to come on at 150 degrees coolant  then when turn the key on the fans would run until the coolant dropped to 150 but then when the car is on coolant would always be above that and the fans would never shut off...The fans are not high and low speed...It's variable and runs at a percentage that you set of max speed for things like coolant temp, ambient temps, trans oil temp and A/C head pressure.

as in key on and running? i've never felt my fans running at any point other than while it's running. ideally you'd want to not have the car running while sitting in the staging lanes but maintain fan operation.


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