DS3 Intercooler

[Ragnarok]

N

Larger bonnet vents will not reduce engine temperatures or indeed reduce air intake temperatures, relative to the vent opening size.

Here's a little tip for you on controlling and reducing combustion temperatures, which is vital as you increase power, remember increase power you increase the heat, and heat is an engine killer.

The somewhat overlooked and forgotten spark plug, is crucial in removing combustion cylinder heat, I can see a series of questions coming, LMAO.

Bunk me on this.

I am running NGK LRK8AP with E85

[Czar]

You guys make this unbelieveable complicated

Czar is talking about racing conditions and Chris considers A/C cooled IC

I am lazy and have lust for comfort. Just threw in an oversized Clemens-Motorsport IC and it has served it's purpose perfectly for a daily mini-sporty car.

Anyways keep going *grabs a new bag of popcorn* :Joni:

Czar is talking about common sense and not about racing conditions.

[Ragnarok]

Czar is talking about common sense and not about racing conditions.

"Race or Race proven, now when driving on the street or motorway, this is so far removed from actual Race conditions, you can NOT compare the two, on the street/motorway your chosen aftermarket Intercooler keeps your charged intake air at a reasonable temperature, what happens when we start to push the temperatures up, say, in Race conditions, or indeed heavy prolonged throttle conditions, how will your chosen aftermarket Intercooler fair then ? "

[Czar]

"Race or Race proven, now when driving on the street or motorway, this is so far removed from actual Race conditions, you can NOT compare the two, on the street/motorway your chosen aftermarket Intercooler keeps your charged intake air at a reasonable temperature, what happens when we start to push the temperatures up, say, in Race conditions, or indeed heavy prolonged throttle conditions, how will your chosen aftermarket Intercooler fair then ? "

You have to give reference, so anyone can see the difference, it's still common sense, and people take from posts and threads what they will.

[Chris_Blue]

You guys make this unbelieveable complicated

Czar is talking about racing conditions and Chris considers A/C cooled IC

I am lazy and have lust for comfort. Just threw in an oversized Clemens-Motorsport IC and it has served it's purpose perfectly for a daily mini-sporty car.

Anyways keep going *grabs a new bag of popcorn* :Joni:

Take your point Rag, but its all relative isn't it? Surely things to learn from a Race set up, and transfer to a sporty road car N'est pa?

N

Larger bonnet vents will not reduce engine temperatures or indeed reduce air intake temperatures, relative to the vent opening size.

Here's a little tip for you on controlling and reducing combustion temperatures, which is vital as you increase power, remember increase power you increase the heat, and heat is an engine killer.

The somewhat overlooked and forgotten spark plug, is crucial in removing combustion cylinder heat, I can see a series of questions coming, LMAO.

Agreed- engines don't like the heat. Surely bonnet vents help in removing heat at high speed, therefore (even slightly) reducing the air intake temp

Sparkplugs- so long as they don't shatter then what the worry?

Ive got some Iridium ILZKBR7A-8G which been told are better, then someone else told me don't bother as OEM are fine
So didn't fit them

[Ragnarok]

You have to give reference, so anyone can see the difference, it's still common sense, and people take from posts and threads what they will.

Indeed, I hope people do. After all there are often more than a single truth.

[Czar]

Take your point Rag, but its all relative isn't it? Surely things to learn from a Race set up, and transfer to a sporty road car N'est pa?





Agreed- engines don't like the heat. Surely bonnet vents help in removing heat at high speed, therefore (even slightly) reducing the air intake temp

Sparkplugs- so long as they don't shatter then what the worry?

Ive got some Iridium ILZKBR7A-8G which been told are better, then someone else told me don't bother as OEM are fine
So didn't fit them

Oh dear oh dear, LMFAO, do I need to write a thesis on spark plugs and how crucial they are.

[Ragnarok]

Take your point Rag, but its all relative isn't it? Surely things to learn from a Race set up, and transfer to a sporty road car N'est pa?





Agreed- engines don't like the heat. Surely bonnet vents help in removing heat at high speed, therefore (even slightly) reducing the air intake temp

Sparkplugs- so long as they don't shatter then what the worry?

Ive got some Iridium ILZKBR7A-8G which been told are better, then someone else told me don't bother as OEM are fine
So didn't fit them

The bonnet vent benefits depends also on the whole design of the engine. For example Subaru's bonnet vents are there for a vital reason and not just for giggles.
Best way to figure it out is to do wheelies on the spot and wait for the IC to overheat and cause detonating (busted engine).

[Chris_Blue]

Oh dear oh dear, LMFAO, do I need to write a thesis on spark plugs and how crucial they are.

No, No. Think you've already done that

Maybe 2 important sentences only ;-)

Just creates a spark surely, and has to withstand high temperatures
Ed- Or how the heck does a spark plug control internal engine temperature?

[Chris_Blue]

The bonnet vent benefits depends also on the whole design of the engine. For example Subaru's bonnet vents are there for a vital reason and not just for giggles.
Best way to figure it out is to do wheelies on the spot and wait for the IC to overheat and cause detonating (busted engine).

I compare temperatures from when the vents were not there, and when they were
I KNOW they get rid of heat and reduce intake temps- just no less the external temperature

And yes- realise the internal temperature is something entirely different, but ALSO related

[tomu80]

Hi!

Regarding your intercooler disscusion...

Recently I've installed AIRTEC dedicated FMIC on my 207 1.6 THP stage 1+ by E-tuners (156 PS /265 Nm stock, 192 PS / 330 Nm now on stage1+).

Some size comparison:


And some first road tests results:

Ambient temp: 10 deg. C

1. 10 minutes city driving (50 km/h max) - intake temp 10 deg C

2. 3 x WOT 2 km runs on 3-rd and 4-rd gear till rev limit -intake temp.: 12 deg C (I think its amazing compared to stock IC)

2. after those WOT runs - about 5 minutes stop and idling - intake temp: 29 deg C But you need just about 100 m even very slow drive to lower it back to 24 deg C again and it keeps lowers it constantly very quicly back to almost ambient temp.

I think that a cooling efficiency is just awesome! :-) Stock IC just can't be even compared to that!

And here are some boost plots:

1. stage 1+ stock IC (1,5 year and 15 kkm ago - summer conditions):



2. stage 1+ AIRTEC FIMC:



As you can see on theese plots the boost drop and the lag in boost building is clearly seen and it's a price of outstanding cooling efficiecy - you almost can't have one without the other as Czar described . On Airtec FIMC maximum boost is about 0,1 bar lower than on stock IC and boost plot isn't as flat on higher revs. I hope that a much better cooling efficiecy will compensate it greatly and cause sigificant power gain anyway.

Have any of you noticed similar boost drop after uprgading IC to a bigger one?

[Chris_Blue]

That's real good info Tomu- thanks for posting up
Doesn't seem to be this info anywhere else on the web so far

Deffo takes over from Forge on the cost front- was it easy to install?

[Jamie@SPTuning]

Claire's airtec performed well when I tested it the other week...
Again the recovery time after a hard pull was much quicker than OEM, and kept close to ambient when on partial throttle.
Pulled just under 210PS

[tomu80]

Jamie - 210 PS? But what was the stock power on stock IC?

You are right about that recovery - as I wrote - it is really good, but what do you think about that max boost drop (when compared to a boost plot on stock IC)? Is it normal in your opinion?

Chris - it took me 2 days and fitting the pipes was a pain in the ass!!! There is a very little room for them - they tend to touch everything and bend. Drilling the crash bar wasn't easy too.
Maybe because I did it myself - without any help, but I think that I wouldn't do that again...

[Jamie@SPTuning]

Boost is up and down all the while on any THP, I can do 10 back to back runs and get 10 different boost plots. Mine boosts 100mbar more in summer than winter.
Don't worry about the boost drop, ecu's torque management intervening, not as much boost needed now to achieve target torque/load.