Sup w/them 2024 Fall Projects?
Aug 6, 2024 | 09:22 AM
#6361
On another topic, we were talking about aftermarket heads here the other week, looks like PRP is doing cast Subaru heads now on top of their RB stuff. I know Herman has teased 4G stuff in the past so I don't think it's out of the question that we could see an improved cast head from PRP:
http://www.youtube.com/watch?v=wvOV-0Ryehc
http://www.youtube.com/watch?v=wvOV-0Ryehc
His point about starting with EJ heads because they're smaller before scaling up to larger heads is a good point. Hopefully they see enough success with their heads to keep the product line moving forward.
Aug 6, 2024 | 09:34 AM
#6362
There's multiple ways they can be constructed, just depends on the engine. Some are just a check valve, some are a check valve with a spring to create a crack pressure, others are a fixed orifice, some are a combo of fixed orifice with check valve.
Aug 6, 2024 | 01:09 PM
#6363
Evolving Member
Joined: Feb 2018
Posts: 284
Likes: 44
From: St. Petersburg, Florida
Aug 6, 2024 | 03:35 PM
#6364
Turns out a single spal 12" mounted directly to OEM radiator isn't enough to keep temps in check once everything heat soaks and dual driving.
Temps would actually drop back to 90c while moving on course but as soon as we got back to grid, even with me spraying the radiator and oil cooler, would creep up to over 100c idling. If I shut the car off, we were having hot start issues because something isnt tuned right for 110c restart. 110c because the coolant just heat soaked the engine block sitting there. Issues I of course have never had before with the stock fan and was told this would likely happen
.
Was totally fine solo driving sunday though. Minus the check valve thing. Time to order the CSF full size slim to go on before nats.
Temps would actually drop back to 90c while moving on course but as soon as we got back to grid, even with me spraying the radiator and oil cooler, would creep up to over 100c idling. If I shut the car off, we were having hot start issues because something isnt tuned right for 110c restart. 110c because the coolant just heat soaked the engine block sitting there. Issues I of course have never had before with the stock fan and was told this would likely happen
.Was totally fine solo driving sunday though. Minus the check valve thing. Time to order the CSF full size slim to go on before nats.
Haven’t had issues since going back to stock fan.
Aug 6, 2024 | 04:22 PM
#6365
I remember you telling me that it didnt work for you but wanted to try it myself before buying the CSF rad to get rid of the OEM plastic liability.
Aug 6, 2024 | 04:32 PM
#6366
If you've deleted AC, and the condenser fan, you should add a pusher fan to the passenger side of the radiator. The OEM fan strategy runs the condenser fan when coolant temps get thigh enough for extra airflow (or wherever you set them too).
Aug 6, 2024 | 07:36 PM
#6367
Drinking is always the best course of action.
To add to Sean, if you've deleted your condenser there are very large gaps on either side of the radiator. Either plug it with foam or make some flashing to seal it off.
To add to Sean, if you've deleted your condenser there are very large gaps on either side of the radiator. Either plug it with foam or make some flashing to seal it off.
Aug 6, 2024 | 08:22 PM
#6368
Aug 7, 2024 | 07:13 AM
#6369
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Terror Rising (Aug 7, 2024)
Aug 7, 2024 | 11:07 AM
#6370
Originally Posted by ViciousLSD
I thought it worked that way but mine runs at the same time. maybe at a lower speed than when AC is on
The following users liked this post:
ViciousLSD (Aug 7, 2024)
Aug 7, 2024 | 11:14 AM
#6371
Honestly I think it might have changed at some point for my car. I just dont recall all these fan noises back when it was all stock.
Aug 7, 2024 | 11:26 AM
#6372
Speed sensors and acd
Can anyone tell me if the ACD processes the wheel speed and other sensors. Say if i have a slight tire rub at rear, will the acd do something abruptly, like transfer power to the front then to the rear again several times until the theres no more tire rub?
Aug 7, 2024 | 11:27 AM
#6373
EvoM Guru
Joined: Mar 2009
Posts: 1,406
Likes: 274
From: New Zealand
I think this made the biggest difference. Flashing off the edges around the radiator up to the bumper so it draws air from the bumper not the engine bay thru the fan. Aside from going away from cheap radiator and using a proper branded one.
Aug 7, 2024 | 11:28 AM
#6374
EvoM Guru
Joined: Mar 2009
Posts: 1,406
Likes: 274
From: New Zealand
I have ran water for track events just in case. the stares get to me