Jackson Racing Rotrex Supercharger System Info and Discussion

[CSG Mike]

Originally Posted by glamcem

It seems like I should be able to fit the OEM cooler in there though
Not to bash the JR cooler kit but I would rather use the OEM cooler for the following reasons:

• ability to utilize radiator for cooling so with the upgraded radiator the oil temps can be increased or decreased accordingly (thermostat radiator)
• one less item in front of the IC
• Cost

other than that JR cooler looks pretty good and I am pretty sure it does what it's supposed to do

The OEM cooler is not quite enough

[glamcem]

Originally Posted by ATL BRZ

It actually mounts behind the IC alongside the Rotrex cooler.

yes, I should've looked closely and thanks for clarifying but still, it blocks some air that goes to the radiator

Originally Posted by CSG Mike

The OEM cooler is not quite enough

I wish we could compare the logs of the two options OEM vs air to air oil coolers so that we'd be able to tell how effective are the both units . I personally like the simplicity and the effectiveness of the OEM unit since it utilizes the size and functionality of the radiator. Having said that, I would like to get a bigger radiator (most likely a Koyo) and combine with the Oem cooler ..Since my car will be daily driven and will see some occasional track events, keeping the temps in ideal zone (not too cold in the morning) instead of cold all the time would be ideal imo.

In addition, it seems like the 2015 WRX will use the same OEM cooler (as I can see in the below pic). I think it should provide adequate cooling for the most part.. in the end, the whole reason I am getting a Rotrex unit instead of a turbo is to be able to fight with heat and heat related issues

[CSG Mike]

It's the same reason track-going STIs replace the OEM cooler with an air cooler. It's suitable for some spirited driving, but not really for track driving, particularly when you also need to cool a turbo.

[*LongFella]

Maybe it's my lack of understanding, but I can't see how the OEM oil cooler is efficient enough to combat FI heat you get from multiple pulls and/or track days. Maybe I'm a noob, but you get all the real estate and rows of the satreb up front with more oil getting cooled than a small amount near the filter on the OEM... Maybe I'm not understanding how the OEM one works... Idk

[*LongFella]

^ Great info! I'm always amazed on all the info and what I learn on this forum!

[*LongFella]

I'm so jealous of you Cali guys that can track all year round.

But our CA 91 gas SUCKS! lol

[CSG Mike]

Originally Posted by normancw

From the OEM oil cooler thread, it seems to work at the track for NA.
http://www.ft86club.com/forums/showt...27#post1362527



Not sure how it will do for FI, but I'll find out in May. I'm so jealous of you Cali guys that can track all year round.

The thing is, it's still approaching 235-240F, which is higher than even the cheapest oil-air oil coolers, AND you're adding more strain to the engine coolant.

[OrbitalEllipses]

Originally Posted by *LongFella

A few photos so far

Attachment 69654Attachment 69655Attachment 69656

So is there anything that comes down below the lowest point of the compressor housing?

@CSG Mike or anyone else?

[*LongFella]

Originally Posted by OrbitalEllipses

So is there anything that comes down below the lowest point of the compressor housing?


@CSG Mike or anyone else?

Looking at it from the front, there is the bypass valve to the right under the exit tube of the rotrex unit...

Here is the best pic I could find that I took:


Is that what you are getting too?

[OrbitalEllipses]

Just trying to eyeball whether or not a certain longtube header would fit.

[MidnightRunner]

Originally Posted by OrbitalEllipses

Just trying to eyeball whether or not a certain longtube header would fit.

A certain header that will remain.. nameless, perhaps?

Sent from my LG-P769 using Tapatalk

[OrbitalEllipses]

@*LongFella how much space would you say there is between the top edge of the crank pulley and the bottom of the Rotrex/lowest point on the unit (including the BPV - is it plastic?)?

[jamesm]

Tuned one of these the other day... blew out the MAF immediately. How are you guys tuning these things without speed density (or on the stock MAP sensor since the kit didn't seem to come with one)? It's almost as if they designed the MAF to hit 5v right at redline on a stock car lol.

[CSG Mike]

Originally Posted by jamesm

Tuned one of these the other day... blew out the MAF immediately. How are you guys tuning these things without speed density (or on the stock MAP sensor since the kit didn't seem to come with one)? It's almost as if they designed the MAF to hit 5v right at redline on a stock car lol.

That would be accurate... it gets really sketchy around 4.85V, but then that's why the kit took this long to get to market right? >.<