Tracking with Forced Induction

[diss7]

Originally Posted by CSG Mike

Any other challengers for those that think their FI can withstand even 1 lap of track driving by me?

Next time you're in NZ, have a go at mine.

[mike the snake]

Originally Posted by CSG Mike

Any other challengers for those that think their FI can withstand even 1 lap of track driving by me?

My goal is to address the heat issues so that Yes, my car could withstand track laps with you driving.

[SirBrass]

Originally Posted by CSG Mike

The fans are more important than the radiator, IMO.

And what upgrades are there in that regard?

On phone I am. Therefore, if mistakes I make, Frank Oz blame you should.

[mike the snake]

The shroud is as important as the fans IMO. It helps focus the air through the radiator.

[xwd]

People have been combating temp issues on the WRX/STi for years since a lot of them are modded and use water-cooled turbos. In general if your coolant temp is under 210F you are okay. 220F and above you need to start looking at remedies. Here are the things I did on my WRX and is common:

1) Upgraded radiator and ducting. As noted in this thread the ducting is very important, you could probably not upgrade the core as long as the ducting is good.

2) 100% distilled water with water wetter. Antifreeze is terrible at eliminating heat. This alone dropped my coolant temps a good bit.

3) Higher pressure radiator cap, effectively raises the boiling point, more important if you aren't running antifreeze.

4) Lower temp thermostat (or no thermostat), coolant starts flowing sooner through the radiator before it reaches too high of a point.

5) Run the fans at high speed all the time. I don't know if the SPAL fans are variable speed when hooked up to the stock wiring, but when I had them in my WRX I used a relay and whenever the ECU kicked the fans on, the fans were running at high speed. Some just run the fans all the time on the track.

6) Oil cooler. Lower oil temps result in lower temps overall, oil retains a lot more heat than coolant.

7) Properly bled coolant system. Air pockets are the devil and will raise temps a ton in a hurry, make sure all of the air is out of the system.

The guy who was at 257/293. If the car comes out unscathed after that, it's pretty stout. No melted fans or anything else though?

[Jesse36m3]

Originally Posted by glamcem

I have to disagree with some of the above comments ..yes, the tires, brakes and suspension mods make a lot of difference but I think we all have to agree that this car is very very slow in stock form simply because it doesn't make a healthy 200 hp with its torque dip... and OP already mentioned that he tracks his FRS regularly so don't you think that "address other issues before more power" line getting old?

Also "fast driver > fast car" is a very bold statement.. how much of a fast or technologically advanced car are we talking about here? sure a more experienced driver can make better lap times in his/hers slightly lesser car but I can almost guarantee you if you put a mediocre driver in a GT-R, he/she'll be always faster than your stock powered BRZ/FRS unless of course it's their very first track day or something wrong with the car simply because GT-R does everything for the driver and a lot easier to drive fast with confidence .. HP advantage makes up for the difference in many cases .. take a look at the below video that I took last week, I am pretty sure the driver in the GT3RS is a new driver or something (brake, tires) are wrong with his car since even I was a lot faster at tight corners and was able to catch him! the car pulls away like a train as soon as it sees a straightaway which makes it for the difference easily (my car is stock powered with Nitto NT01 R -comps) does that mean fast driver > fast car ? no, it only means fast driver > extremely slow driver (or fast car with a problem)

Long story short this car only lacks about 50hp ( stable hp without the dip) not some crazy amount of power but rather sufficient power to balance its weight

haha that Porsche was like "fuck you, bye" on the straight.

[glamcem]

Originally Posted by Jesse36m3

haha that Porsche was like "fuck you, bye" on the straight.

won't happen again

[SirBrass]

Originally Posted by mike the snake

The shroud is as important as the fans IMO. It helps focus the air through the radiator.

Just to make sure I'm understanding you, by "radiator shroud" you mean something like this, right: http://ft86speedfactory.com/apr-carb...late-1341.html

[xwd]

Originally Posted by SirBrass

Just to make sure I'm understanding you, by "radiator shroud" you mean something like this, right: http://ft86speedfactory.com/apr-carb...late-1341.html

That could be one piece of it. The FBM "shroud" is a fan shroud, not a radiator shroud, it's only going to help you if air is being directed at the radiator surface correctly. The point of ducting/shrouds on the frontside is to make sure air doesn't escape around the radiator. It's all about eliminating gaps around the radiator.

[SirBrass]

Originally Posted by dwx

That could be one piece of it. The FBM "shroud" is a fan shroud, not a radiator shroud, it's only going to help you if air is being directed at the radiator surface correctly. The point of ducting/shrouds on the frontside is to make sure air doesn't escape around the radiator. It's all about eliminating gaps around the radiator.

I understand that, and it makes sense. Path of least resistance. Just making sure I've got the right idea when putting in these parts. I've got time before I go FI, so I've got time to get my supporting mods done right ahead of time. Like these for cooling.

[King Tut]

Originally Posted by CSG Mike

Any other challengers for those that think their FI can withstand even 1 lap of track driving by me?

This is one of the few reasons I am still considering buying and building another turbo BRZ. I would build it for track only just to go set laptimes and show that it is possible to you and everyone else.

[cdrazic93]

Originally Posted by CSG Mike

Any other challengers for those that think their FI can withstand even 1 lap of track driving by me?

The PTuning kit seems to have faired well

http://www.ft86club.com/forums/showp...&postcount=341

[CSG Mike]

Originally Posted by cdrazic93

The PTuning kit seems to have faired well

http://www.ft86club.com/forums/showp...&postcount=341

That's been said about various kits, and EVERY SINGLE turbo kit I've driven will overheat without me pushing the car remotely close to hard; the owners that have sat in the passenger seat with me can attest to that.

While I've yet to drive a PTuning kit in person, at this point, I'm skeptical of any setup until proven otherwise.

Oddly enough every supercharger setup (Innovate ic/non-ic, 91 and e85, Vortech various stages, and Jackson Racing) I've driven has not had the same heat issues.

MrC's 2013 FR-S:
GTX3076R
PTUNING prototype 4-1 race header
PTUNING prototype air/water Laminova oil cooler system
E65 tune running about 425whp
OEM hood

That car didn't overheat? Are you kidding me?

As a point of reference, stock Corvettes/Porsches/Lamborghinis/Ferraris all overheat.

[CSG Mike]

Originally Posted by King Tut

This is one of the few reasons I am still considering buying and building another turbo BRZ. I would build it for track only just to go set laptimes and show that it is possible to you and everyone else.

I have no doubt that it can be done. It's just that nobody's actually done it, yet.