Jump to content
SAU Community

Recommended Posts

Starting gathering parts for the cooling system overhaul I'm doing to my drift car atm. I'm ditching the clutch fan set up mainly due to the fact I just don't have the room to fit all the parts required with out trimming something to make it fit.

Now I plan on running a tabata alloy core with an alloy shroud made up to space thermo and mount then too.am I beyer off running one large 16 inch spal fan in pull configuration or two 12 inch spal fans side by side also in pull mode?

I also plan on running a header/swirl put set up. Does any one have a diagram to correctly hook this up and what radiator cap I should be using on both the header tank and the rad itself?

Hey bud in regards to the twin 12" or single 16" question. The twin 12's will cover more surface area if you do the maths. Twin 12's cover 226.08 square inches, whilst the single 16 covers 200.96 square inches.

Running with this. If you can fit a single 18" it covers 254.34 square inches. Which would be the better of the 3.

Personally if you can fit the single 18" i'd be going with that. Simplicity is always better :) Hope this helps :)

  • Like 1

Id set it up on a 2 speed switch thing, so when its under temp it just slowly makes a breeze so you have a little airflow plus it uses hardly any current on low speed and will be quiet. Unsure if you need a special fan for low speed but with dc power i dont think so?? Thats just what id do thumbsup.gif

Simon, Im upgrading my twin 12inch Ebay fans to one 16inch Spal fan.

Make sure you get the 3000cfm one. Its a bit exxy but its well worth the money.

As for the header tank setup, just use a blanking cap for the radiator and a Nismo cap on the header tank.

Has anybody looked at venting the head water jackets in order to reduce localized boiling above the exhaust side of the chamber? I've tuned a high comp ls1 with this method of cooling and we were able to get the timing back up to around 22degrees (from16-17) and we gained about 25rwkw. It must be a problem with the length of the rb blocks.

The other gain is a lower coolant pressure which May reduce pumping losses.

would anyone see a problem with doing away with the rad cap on the radiator all together? for one its not going to be needed and secondly i can weld a nipple on the top tank in an elevated spot for the feed to the swirl pot anyway.

Simon, I intend on using a swirl pot as well, but I'll keep the radiator cap on the radiator for ease of filling most of the system as well as having a cap on the pot.

In this method, apparently the cap on the pot is to be of slightly higher release pressure than the rad cap.

Has anyone tried these ones from eBay?? they're stupidly cheap for 2750cfm! That could mean they aren't that great but much cheaper than the SPAL one to at least try.

NOTE: I see that the SPAL 16" Extreme one has the following warnings, not sure about the ebay one?

"The fan motor is not sealed and should not be used in the following conditions. 1. High dust, dirt, and/or wet environments. 2. Unusually high ambient temperatures (exceeding 176 degrees F). 3. extended/continuous modes of operation exceeding one hour in duration."

Maybe even 2x 12" ones as it appears they are rated to 1650cfm each. Seems to be basically the same as the rating of the SPAL 12" High Performance.

Don't know, that's what I'm asking.. hell, I may even consider using one if they are any good :) Might even be worth it for replacing the A/C one on the front?

I just had a very quick search but couldn't see any reviews..

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • What does it look like with highway driving? And yes, I had a similar thought as Duncan. It looks quite similar in my Stagea and I have made myself accept it as normal. Might have to look into it some day  
    • While I was waiting for the new parts to come in for the charge pipe and radiator I decided to do some turbo modification. The drive pressure (exhaust backpressure) was a lot higher that I thought it should be. For 32lbs of boost drive was 55lbs. The turbine housing is a 1.10AR and my turbo builder has suggested to go to a 1.25AR. To test if a larger AR would do anything to reduce drive pressure AND not spend any money I decided to hog out the divider in my current housing. I removed it from the inlet and the whole way through the housing.  After reassembly and testing it doesn't look like this modification did anything for reducing drive pressure or requiring more fuel (making more power). Oh well, it was worth a shot. We'll get some data at the track if it makes it past the 60ft. I also machined a $7 shift knob off Amazon to fit my Stillway shifter since I didn't like the Stillway shift knob. Next on the list was the radiator replacement and fabrication of a new intercooler tube that had no silicon coupler. No pictures of this - I was short on time each night after work to get this done and didn't stop to take pictures.  Next was to get the clutch disks out and replaced. Previously when installing the dogbox I had ordered a set of the same sintered iron disks I had been running because I switched to the 26-spline input shaft. I thought it was odd that they didn't have any markings or brand name on them like all my old disks had but installed them anyway. At the track I could not get the clutch to lock up using my normal strategies. After two track nights I reached out to the clutch manufacturer and ask their thoughts. They said they had to switch the material out because they were having trouble getting the original material and that this new material would not take to being slipped very well.  So out with the first set of 26-spline disks and in with the correct material 26-spline disks. While I had the trans out I added an inspection/service hole. I've wanted one of these for a while. Now I can have a look at things and change the front cover shimming when needed (clutch wear). I hustled and got the clutch change done in a few hours on a Saturday. Hopped in the car and drove home. On the way home I did a 1-3 pull. When shifting from 2nd to 3rd the core plug in the back of the cylinder head popped out and dumped all the coolant. Thankfully I was only 30 seconds from home and coasted it there. Datalog showed nothing unusual and 2.5psi of coolant pressure. That plug has been in there since 1992 but I guess it worked its way out. Pulled the trans AGAIN and replaced the plug, JB welded it in, and made a brace. Also deleted the head drain I had added in during the bearing issue fiasco.  I am currently changing my boost control plumbing to make it cleaner. After that is done I'll make another attempt at getting past the 60.
    • Are you 100% sure this isn't tune related?
    • 140-150 across the board. At this point hoping the grounding harness fixes it. My grounds are all tied to the chassis and none to the battery. For SR and KA that’s never been a problem for me but had a few other guys here and Reddit who told me RB really like a very solid ground setup tied to the battery so going to try that next, I’m stumped if that doesn’t do it. Never had a car have spark and fuel and not fire off before. Only thing I can think is the spark is intermittent/weak because of grounds nothing else really makes sense at this point 
    • I am having close to the same issue. Can you help me with what wire you grounded to get your pump to trigger?
×
×
  • Create New...