[lucasborka]

Originally Posted by thejeremyman9

ohh reading fail on my part i guess. But I am still going to say that doesnt really make sense given the way oil and coolant temps are controlled. They would need to change the oil T-stat and flash cooling targets for example.

[QUOTE=thejeremyman9;29114440]

Fully agree 👍🏻

[lens]

Originally Posted by johnung

Thanks for the information. If you get a chance please run some 1st through 4th gear logs. Jeremy had me do that to stress the intercoolers more that I've been testing. It helped with comparisons.

Here's two, my car hates 1st gear as it's considerably too short, but you'll see timing corrections as 91 fuel here sucks, combined with IATs over 105 (which is where DME pulls timing)


1st to 5th

https://www.bootmod3.net/log?id=62d4...729b01fc394441



anotha one:

1st to 4th

https://www.bootmod3.net/log?id=62d4...0b435d150c757e

[AmuroRay]

[n55david]

Originally Posted by chaungo

Here's two, my car hates 1st gear as it's considerably too short, but you'll see timing corrections as 91 fuel here sucks, combined with IATs over 105 (which is where DME pulls timing)


1st to 5th

https://www.bootmod3.net/log?id=62d441d7ae729b01fc394441



anotha one:

1st to 4th

https://www.bootmod3.net/log?id=62d441d6d10b435d150c757e

What ic is that? Where are you at? What was the temp roughly at the time?

[lens]

Originally Posted by n55david

What ic is that? Where are you at? What was the temp roughly at the time?

ATM (Ambient Thermal management) FMIC

Nova Scotia, Canada

Temps were 83F, 85% humidity (living next to the ocean lol)

[mike@x-ph.com]

Originally Posted by chaungo

Here's two, my car hates 1st gear as it's considerably too short, but you'll see timing corrections as 91 fuel here sucks, combined with IATs over 105 (which is where DME pulls timing)


1st to 5th

https://www.bootmod3.net/log?id=62d4...729b01fc394441



anotha one:

1st to 4th

https://www.bootmod3.net/log?id=62d4...0b435d150c757e

lots of corrections on all gears

[lens]

Originally Posted by mike@x-ph.com

lots of corrections on all gears

It's due to high IAT unfortunately, gas quality isn't the best, but when IAT sits in the 80s, there's only a small amount of corrections in 2 cylinders, but anything above 105F, you'll see massive corrections due to heat.

[johnung]

Originally Posted by chaungo

It's due to high IAT unfortunately, gas quality isn't the best, but when IAT sits in the 80s, there's only a small amount of corrections in 2 cylinders, but anything above 105F, you'll see massive corrections due to heat.

Do you have E85 available locally? Throwing 2 gallons in the tank would eliminate bad gas from the equation

[mike@x-ph.com]

Originally Posted by chaungo

It's due to high IAT unfortunately, gas quality isn't the best, but when IAT sits in the 80s, there's only a small amount of corrections in 2 cylinders, but anything above 105F, you'll see massive corrections due to heat.

I don't like your datalog; it does not look good.

It would help if you started with a less aggressive map to compensate for the bad fuel quality.

If that does not fix your issue, upgrade your intercooler.


Running a map with that many corrections is not a good idea.

[lens]

Originally Posted by mike@x-ph.com

I don't like your datalog; it does not look good.

It would help if you started with a less aggressive map to compensate for the bad fuel quality.

If that does not fix your issue, upgrade your intercooler.


Running a map with that many corrections is not a good idea.

The map is fine, it's the heat, I'm supposed to get that many corrections as the DME is pulling timing due to IAT rising past 105F. Nothing I can do unless I install a meth kit, there's no knock so having those timing corrections isn't the end of the world.


Here's another log, with cooler temps.


https://www.bootmod3.net/log?id=62cb...0b43079f4bec0e

Originally Posted by johnung

Do you have E85 available locally? Throwing 2 gallons in the tank would eliminate bad gas from the equation

No E85 stations or 93, I'm on the far east coast in Halifax where we have watered down 91 or something, pretty much the same as cali 91.

This is also on a ACN91 map too lol

[mike@x-ph.com]

Originally Posted by chaungo

The map is fine, it's the heat, I'm supposed to get that many corrections as the DME is pulling timing due to IAT rising past 105F. Nothing I can do unless I install a meth kit, there's no knock so having those timing corrections isn't the end of the world.


Here's another log, with cooler temps.


https://www.bootmod3.net/log?id=62cb...0b43079f4bec0e


No E85 stations or 93, I'm on the far east coast in Halifax where we have watered down 91 or something, pretty much the same as cali 91.

This is also on a ACN91 map too lol

85 degrees ambient temps are nothing.

Ambient temps here in Las Vegas are currently 120.


If the map is fine, then your intercooler is not fine. You have a lot of corrections

But it's your car so I'll butt out, good luck

[Pussiwillow]

Originally Posted by mike@x-ph.com

85 degrees ambient temps are nothing.

Ambient temps here in Las Vegas are currently 120.


If the map is fine, then your intercooler is not fine. You have a lot of corrections

But it's your car so I'll butt out, good luck

Loving these 120* days lol
Lake havasu native about 3 hours away, we usually teeter 5* over you guys there, feels hotter in Vegas from all that concrete and glass lol.

For summer I run 91 map with 2 gallons 100 octane to 5 gallons 91

In the event I have to get into boost ( I drive very easy in this heat) my fuel quality won't be a problem but even so have logged with a lot cleaner logs than above, I would get better fuel in summer months with inconsistent timing like that imo. Heat and boost hate each other.

[lens]

Originally Posted by mike@x-ph.com

85 degrees ambient temps are nothing.

Ambient temps here in Las Vegas are currently 120.


If the map is fine, then your intercooler is not fine. You have a lot of corrections

But it's your car so I'll butt out, good luck

Don't forget to factor in high humidity, it's dry in Las Vegas

I've got 280,000km on this car with this setup so I'm not too worried, worst comes to worst if I need to race it, I'll buy a bucket of E98 Ignite and do a E20-E30 mix as my maps are all flexfuel activated.

For the FMIC, I may either get the PTF one or VRSF race.

But again, even stock turbo, I saw barely an increase of IAT with any FMIC, upgrading to an hybrid, it doesn't matter what intercooler, you'll see a huge spike in IAT once you go multigear, and higher gears.

Does anyone have a log of a PS2 or bigger turbo with the VRSF? I'd like to see the IATs.

[thejeremyman9]

Originally Posted by chaungo

Don't forget to factor in high humidity, it's dry in Las Vegas

I've got 280,000km on this car with this setup so I'm not too worried, worst comes to worst if I need to race it, I'll buy a bucket of E98 Ignite and do a E20-E30 mix as my maps are all flexfuel activated.

For the FMIC, I may either get the PTF one or VRSF race.

But again, even stock turbo, I saw barely an increase of IAT with any FMIC, upgrading to an hybrid, it doesn't matter what intercooler, you'll see a huge spike in IAT once you go multigear, and higher gears.

Does anyone have a log of a PS2 or bigger turbo with the VRSF? I'd like to see the IATs.

Timing corrections aside, you are getting 10+F increase in a 1-4 pull and a 25+F increase in a 1-5 pull, so the IC seems insufficient for your application. With a larger turbo at the same boost level, you should actually be making less heat, so you shouldnt have an IAT penalty.

What you said about seeing a spike with mutigear isnt true though, here's a 0-150mph log of mine with VRSF race. No increase in IATs, and i am actually running more boost than in your log it looks like (17-18psi most of it), on stock turbo. https://datazap.me/u/thejeremyman9/d...0&data=4-10-17

Someone else might have a PS2 log with the race. Dont get the PTF, i already posted data about that in that thread.

[lens]

Originally Posted by thejeremyman9

Timing corrections aside, you are getting 10+F increase in a 1-4 pull and a 25+F increase in a 1-5 pull, so the IC seems insufficient for your application. With a larger turbo at the same boost level, you should actually be making less heat, so you shouldnt have an IAT penalty.

What you said about seeing a spike with mutigear isnt true though, here's a 0-150mph log of mine with VRSF race. No increase in IATs, and i am actually running more boost than in your log it looks like (17-18psi most of it), on stock turbo. https://datazap.me/u/thejeremyman9/d...0&data=4-10-17

Someone else might have a PS2 log with the race. Dont get the PTF, i already posted data about that in that thread.

You'd be surprised, on stock turbo @ 16psi, IAT was barely moving, but on PS2 on the higher gears, it would go higher as you see in my logs, bigger turbo=more air=more work for the FMIC to do for cooling. hybrids will flow considerably more air than stock turbo, which is why they make more power at the same boost and timing as stock turbo, my car made 260whp stock, with PS2 installed, it made 330whp stock tune, my car also made 330whp FBO stock turbo on pump 93, and it made 420whp with PS2 installed.

I'm pretty confident that someone with a VRSF race would have a increase in IAT during a multi-gear pull, but just not drastic like mine.

TBH, if noone comes forward, i'll buy the VRSF race myself and send logs.

[AmuroRay]

Originally Posted by chaungo

You'd be surprised, on stock turbo @ 16psi, IAT was barely moving, but on PS2 on the higher gears, it would go higher as you see in my logs, bigger turbo=more air=more work for the FMIC to do for cooling. hybrids will flow considerably more air than stock turbo, which is why they make more power at the same boost and timing as stock turbo, my car made 260whp stock, with PS2 installed, it made 330whp stock tune, my car also made 330whp FBO stock turbo on pump 93, and it made 420whp with PS2 installed.

I'm pretty confident that someone with a VRSF race would have a increase in IAT during a multi-gear pull, but just not drastic like mine.

TBH, if noone comes forward, i'll buy the VRSF race myself and send logs.

AsianBill n55david motivman

All have the intercooler and are on PS2 turbos I believe. But I think your incorrect - a stock turbo is going to generate more heat than a PS2 at the same boost range because the turbo is outside of its efficiency range.

Anyhow, i'm just watching

[thejeremyman9]

Originally Posted by AmuroRay

AsianBill n55david motivman

All have the intercooler and are on PS2 turbos I believe. But I think your incorrect - a stock turbo is going to generate more heat than a PS2 at the same boost range because the turbo is outside of its efficiency range.

Anyhow, i'm just watching

Hes right that the bigger turbo will be flowing more air at the same boost level (which is part of the reason why a bigger turbo will make more power at the same boost level, although part of that is from the exhaust side flow being improved), but there is also the opposite effect we are talking about with smaller turbo being pushed hard. So the bigger turbo is flowing more air, but that charge air on the hot side shouldnt be as hot as air from a smaller turbo at the same boost level. Quantitatively though, we need to see the logs from someone with PS2 to see.

[AsianBill]

Originally Posted by AmuroRay

AsianBill n55david motivman

All have the intercooler and are on PS2 turbos I believe. But I think your incorrect - a stock turbo is going to generate more heat than a PS2 at the same boost range because the turbo is outside of its efficiency range.

Anyhow, i'm just watching

I had the race intercooler but not PS2 so can't comment on that. IATs were always very consistent. Didn't log multi gear pulls but I don't recall the temps going up.

Sold the car last month to move to a M240i so I cannot provide logs

[AmuroRay]

Originally Posted by thejeremyman9

Hes right that the bigger turbo will be flowing more air at the same boost level (which is part of the reason why a bigger turbo will make more power at the same boost level, although part of that is from the exhaust side flow being improved), but there is also the opposite effect we are talking about with smaller turbo being pushed hard. So the bigger turbo is flowing more air, but that charge air on the hot side shouldnt be as hot as air from a smaller turbo at the same boost level. Quantitatively though, we need to see the logs from someone with PS2 to see.

I know, that's what I told him on post 40 https://f30.bimmerpost.com/forums/sh...1&postcount=40

Yes it's 16PSI, but stock turbo is in the high 80 in WGDC and he's in the 60s, so yeah he's moving more air (bigger turbine) but his turbo clearly isn't working as hard.

[n55david]

I'll try and do one this week for you guys.. its been hot here so it should be telling

[n55david]

I did a 2nd gear to 5th gear run yesterday.. literally 0 data in the log

Its not often I get that opportunity lol

[johnung]

Originally Posted by n55david

I did a 2nd gear to 5th gear run yesterday.. literally 0 data in the log

Its not often I get that opportunity lol

My yellow cable connection kept doing that to me when I was trying to collect logs. Frustrating!!! Since I started using the Kies WiFi Adapter with my iPhone, it hasn't dropped connection even once. Probably 50 logs. Link below...

Hope this helps someone!

https://www.kiesmotorsports.com/prod...8;_ss=r?aff=22