Here is the rear view of our cars. All of the Imprezas have rear-mounted radiators!
I didn’t real the entire thing, but this gives some insight into the purpose:
lol what are the chances
haha, I’ve read it before… those cars are pretty crazy. I believe they are vented on the sides as well as the roof because they are sideways so much
terrible explanation try again.
For track cars, especially turbocharged cars, overheating and cooling are obvious challenges to overcome if you want to enjoy reliable performance. Traditionally a turbocharged car has two cooling systems competing for the same real estate on the vehicle (the radiator and the intercooler).
The rear mounted radiator mod takes this concept to the next level. really? there was not a single “con” for the v-mount Of course it removes the radiator from the picture and allows flexibility in intercooler mounting and sizes. why don’t you have this in the front? because people are afraid to chop up their front end and do some fabrication. Great idea, stuff it in the back, that won’t require any fabrication! What it also does is allow entirely new options for air flow to the radiator because once you place it in the rear you can come up with all sorts of innovative ways to get air flow to it. Lastly, moving it to the rear balances out weight distribution no, no it doesn’t on the car a little more since most front engine cars are front heavy and moving any components to the rear helps to regain balance in weight.
Allows for the intercooler to be placed in the front without worry that the car will overheat due to the radiator being blocked? The cars do not receive a lot of airflow to the front of the car since they are usually sideways.
edited my post.
any Maybe you could pretend like the cars dont get frontal airflow… but only one of those subarus have side vents.
Ah this should be fun.
There are so many more reasons not to do this than there are to do it, unless there are some weird rules determining what you can do and minimum weight.
Either way… the radiators are in the back and they aren’t going anywhere. My suggestion would be to learn Japanese if you don’t already know it and ask the builders of the cars. WHAT MORE DO YOU WANT FROM ME MIKE?!
ok, let me give my first impressions when I read this.
Someone saw the nissan skyline Z-tune and its rear differential coolers and decided that it was the hottest shit that they could ever want on their own car. Without knowing that it was a differential cooler the small japanese boy bought a radiator and commenced fabbing it up in his cut out trunk.
He then extended his coolant lines with massive amounts of fabrication probably routing it through the cabin hoping to get a sweet jdm burn someday when the thing overheats and blows his shit aluminum welds. Finally after finishing his massive project he spent a full day driving back and forth from the local auto repair shop filling up the car with coolant because it now takes 5 times as much to top off the system. The best part of the mod is that the additional weight of the coolant (probably somewhere near water: 61 lbs/ft^3) added a ton of traction!
Wa-la, a mod cooler than JDM pie cuts has been invented.
I may be mistaken. Feel free to show me the light on this mod, if the math proves the functionality I’ll believe you.
There is nothing wrong with sticking the cooling system into the rear of the car IF done properly on all accounts and IF there is an acceptable reason to do so…Doing it to just do it…that’s retarded. Using the proper hardware and techniques. Providing adequate flow. It’s been done countless times, was common in rally competition for years. Dahlbach did it in his 900+HP RSi golf because he had twin intercoolers up front and lacked the room due to the 20V I5. <---- Acceptable reason to do it…
I’m probably going to do it on the WRX, mainly because I do not have the room up front with the EG33 in place to do a gpN layout(horizontal or angled cooler) that keeps the core from getting loaded up with mud and not functioning at all. If you don’t think that’s a necessary thing, let me take you for a few laps around the agust loop @ KTA after a solid rainstorm and watch as the coolant gauge pegs the red zone mighty quick. I’ve packed the nose openings solid with mud on that poor Escort.
and that brings me to this too…I can’t believe that “v-mount” shit is a term used like that now(taken from that link above). It’s a setup style that’s been used in JGTC forever, as well as other mod classed and rally cars where low hoodlines and setback/lowered CG drivetrain conversions have been completed or where one needs to get the Rad out of harms way(debris/mud). Aussies, DTM, etc have been doing it for years. I supposed the next coined term will be “laydown” with horizontaly mounted core(also been done times over)
WRX w/ Eg33 w/o rad in place yet…
EFI Logics Rs with EG33 and rad in place(slightly longer nose though)
It doesn’t have to make sense, they are drift cars.
#1. Holy hell that manifold is nuts
#2. I5 with twin intercoolers, that makes sense. but even on the EG33 wouldn’t it be easier to just make a custom core up front? I completely understand dirt blocking the airflow but I don’t really see how putting it in the back would prevent that. I
the first things that came to my mind was brokeback mountain and failvis.
A dusting of dirt is one thing, 6-8" of solid packed mud from taking nose shots around a course that’s been rutted up all day long is a completely different thing and the one that is most likely to happen. Even making a custom core doesn’t solve the problem of getting the core up and out of direct shots from the debris. With the EJ series motors, you can do a thicker laid back setup…
RCM car…
Notice the ~8" there between the rear of the core support and the timing covers that would otherwise allow a laid back cooler setup? I don’t have that on the '02. The crank pully occupies the forward space that used to be where the AC condenser lived, let alone the radiator.
Typically you’d be able to use a thicker but shorter core and angle the cooler back into the bay and get the bottom of the core out of the lower opening(which you can subsequently block off). Cooling air would come from the upper nose vents(more than adequate). I can’t do this. With the room I have I’d end up with a radiator maybe ~ 20" long and 12" high at best. Being pushed forward it has to fit within the headlight framing up front too. Nowhere near enough to cool the larger motor that’s in the car now, and that’s if it stayed clean too.
I am building an airdam in conjunction with a rear STi spoiler to create a high pressure right before the airdam. Properly placed and sized NACA’s on the trunk lid surface would then pressure feed to the core in the trunk. Core will then be vented to the underside diffuser and out the bottom of the car(low pressure area).
that suby motors looking super clean…:thumbup