RX8Performance.com Dual Pass Radiator V2
11-07-2015, 08:51 AM
#51
The reman I bought last summer came with a water pump and thermostat. The thermostat was in a box.
11-09-2015, 09:37 AM
#54
I'm opting to try an AEM CAI first along with cutting the battery tray before the FAL, and before cutting and removing the fan supports on the drivers side...
Last edited by pcs; 11-09-2015 at 12:30 PM. Reason: that was a hard to read post that wasn't proof read, haha
11-09-2015, 01:38 PM
#55
SARX Legend
iTrader: (46)
No one know what the stock fans flow so I'm not sure where you got that number. I can tell you is that myself and two other locals have the FAL 420 (been on a couple of years now) and it definitely flows way more than the stock setup even just connected to the factory wiring. Hoss-05 has the 480 setup and it flows even more, although for this setup I the 480 fan motors might not fit as they are taller than the 420 setup.
11-09-2015, 02:10 PM
#56
I got them from searching the board for flow rates when searching for data on the stock fans. I want to say that I saw 1700cfm + 1250cfm somewhere.
Good to know that they flow well and last a while - i was digging through your thread with the Mizu fan the other day.
Still trying to get everything to fit at this point without cutting too much of the fan shroud away - good to know that the flow rate on the FAL would likely be sufficient and it would have a slightly lower profile than the stock one (I think the 420 is the one i was looking at - 12 1/8" dual, right?)/
Good to know that they flow well and last a while - i was digging through your thread with the Mizu fan the other day.
Still trying to get everything to fit at this point without cutting too much of the fan shroud away - good to know that the flow rate on the FAL would likely be sufficient and it would have a slightly lower profile than the stock one (I think the 420 is the one i was looking at - 12 1/8" dual, right?)/
11-10-2015, 09:26 PM
#63
I apologize in advance for the partial threadjack
Since the Flex A Lite 480 is currently cheaper than the 420, I went ahead and bought it. In addition, they are both listed as being four inches deep. Maybe it will fit, maybe it wont. Thats why the good lord gave us a return policy. If anyone wants a 480, tonight might be night
Since the Flex A Lite 480 is currently cheaper than the 420, I went ahead and bought it. In addition, they are both listed as being four inches deep. Maybe it will fit, maybe it wont. Thats why the good lord gave us a return policy. If anyone wants a 480, tonight might be night
11-10-2015, 11:33 PM
#64
the FAL 420 is lower profile - it's listed as being 2 5/8" deep, not 4" deep - that's a pretty big difference. The 480 and 490 are both a full 4" deep. The benefit of the 480 or 490 is that they'll push more air (3000cfm vs 2500cfm), but if fitment is an issue, you may be going the wrong way going with the 480 over the 420...
I'm not certain that I'll need a FAL fan (keep in mind, my install is in an S2, so the difference in thickness is not as pronounced), but if I need additional clearance, I"m probably going with the 420 (or maybe the one with the variable speed control?).
I'm not certain that I'll need a FAL fan (keep in mind, my install is in an S2, so the difference in thickness is not as pronounced), but if I need additional clearance, I"m probably going with the 420 (or maybe the one with the variable speed control?).
11-11-2015, 02:01 PM
#66
Former Sponsor
Thread Starter
After checking the dimensions of the fal 420/480/490 it appears the shroud will need to be modified around the radiator hose area to fit. I agree pcs, there may likely be an issue with the higher cfm 480/490 units here because of the increased profile to 4".
We actually have been testing our own shroud and fan combo which is a direct bolt-on unit for the dual pass radiator! The unit will flow the same CFM as the fal490 but in a slimmer profile with some other goodies.
We actually have been testing our own shroud and fan combo which is a direct bolt-on unit for the dual pass radiator! The unit will flow the same CFM as the fal490 but in a slimmer profile with some other goodies.
11-11-2015, 02:17 PM
#67
SARX Legend
iTrader: (46)
I apologize in advance for the partial threadjack
Since the Flex A Lite 480 is currently cheaper than the 420, I went ahead and bought it. In addition, they are both listed as being four inches deep. Maybe it will fit, maybe it wont. Thats why the good lord gave us a return policy. If anyone wants a 480, tonight might be night
Amazon.com: Flex-a-lite 490 X-treme S-blade 12" Dual Reversible Fan: Automotive
Since the Flex A Lite 480 is currently cheaper than the 420, I went ahead and bought it. In addition, they are both listed as being four inches deep. Maybe it will fit, maybe it wont. Thats why the good lord gave us a return policy. If anyone wants a 480, tonight might be night
Amazon.com: Flex-a-lite 490 X-treme S-blade 12" Dual Reversible Fan: Automotive
the FAL 420 is lower profile - it's listed as being 2 5/8" deep, not 4" deep - that's a pretty big difference. The 480 and 490 are both a full 4" deep. The benefit of the 480 or 490 is that they'll push more air (3000cfm vs 2500cfm), but if fitment is an issue, you may be going the wrong way going with the 480 over the 420...
I'm not certain that I'll need a FAL fan (keep in mind, my install is in an S2, so the difference in thickness is not as pronounced), but if I need additional clearance, I"m probably going with the 420 (or maybe the one with the variable speed control?).
I'm not certain that I'll need a FAL fan (keep in mind, my install is in an S2, so the difference in thickness is not as pronounced), but if I need additional clearance, I"m probably going with the 420 (or maybe the one with the variable speed control?).
11-11-2015, 03:39 PM
#68
After checking the dimensions of the fal 420/480/490 it appears the shroud will need to be modified around the radiator hose area to fit. I agree pcs, there may likely be an issue with the higher cfm 480/490 units here because of the increased profile to 4".
We actually have been testing our own shroud and fan combo which is a direct bolt-on unit for the dual pass radiator! The unit will flow the same CFM as the fal490 but in a slimmer profile with some other goodies.
We actually have been testing our own shroud and fan combo which is a direct bolt-on unit for the dual pass radiator! The unit will flow the same CFM as the fal490 but in a slimmer profile with some other goodies.
11-14-2015, 12:13 PM
#72
Former Sponsor
Thread Starter
Hi Mike!
The radiator in that pic has the standard OE design inlet and outlet hose locations.
The dual pass unit has the inlet and outlets located on the passenger side end tank so the FAL shroud and fan appear to be in the way. Not 100% sure regarding the thickness but if the pic is the standard RD unit our dual pass is thicker and the FAL 480/490 may cause depth issues.
Just wanted to chime in before anyone bought fans that may not be compatible with the dual pass unit.
The radiator in that pic has the standard OE design inlet and outlet hose locations.
The dual pass unit has the inlet and outlets located on the passenger side end tank so the FAL shroud and fan appear to be in the way. Not 100% sure regarding the thickness but if the pic is the standard RD unit our dual pass is thicker and the FAL 480/490 may cause depth issues.
Just wanted to chime in before anyone bought fans that may not be compatible with the dual pass unit.
Last edited by RX-Tuner; 11-14-2015 at 12:18 PM.
11-14-2015, 09:15 PM
#73
Right on, I still think it will fit just fine but it may be something to look into. I was actually surprised by how well the flexalite fan setups fit spot on with a few different set ups. I expected to have to change some things around but they always just fit.
From prior conversation you and I had a few years ago your core should be about ideal and a great solution for controlling lots of heat. Had I known about it at the time it would most likely be on my car.
From prior conversation you and I had a few years ago your core should be about ideal and a great solution for controlling lots of heat. Had I known about it at the time it would most likely be on my car.
11-18-2015, 10:31 AM
#74
4) Lower Airbox
I had to cut major parts of the lower Airbox away (maybe just not using it is better). This was the only part that made me really frustrated. Manageable, but at this point I was wishing I had known what I was getting into as daylight was quickly leaving. See my pics on this one. I left it here for the night.
I had to cut major parts of the lower Airbox away (maybe just not using it is better). This was the only part that made me really frustrated. Manageable, but at this point I was wishing I had known what I was getting into as daylight was quickly leaving. See my pics on this one. I left it here for the night.
Last edited by blu3dragon; 11-18-2015 at 10:34 AM.
11-22-2015, 07:14 PM
#75
Registered
UPDATE!!
I drove at Sonoma Raceway yesterday (Sears Point, if you're an older guy...) and the results were outstanding!! Drove hard, held nothing back, and never went over 200 degrees, even behind traffic. In clean air the temp held 180-190 all day long. Outside air temps topped out at 70 degrees (nice to be in CA in November) so that was working in my favor. However, even with similar ambient temps the old (stock) radiator would hit 230 within 5 laps.
So, final result for me. HIGHLY RECOMMENDED. All the modifications were totally worth it. I would do this mod again in a heartbeat.
Feel free to PM me with any questions whatsoever.
I drove at Sonoma Raceway yesterday (Sears Point, if you're an older guy...) and the results were outstanding!! Drove hard, held nothing back, and never went over 200 degrees, even behind traffic. In clean air the temp held 180-190 all day long. Outside air temps topped out at 70 degrees (nice to be in CA in November) so that was working in my favor. However, even with similar ambient temps the old (stock) radiator would hit 230 within 5 laps.
So, final result for me. HIGHLY RECOMMENDED. All the modifications were totally worth it. I would do this mod again in a heartbeat.
Feel free to PM me with any questions whatsoever.