My SPAL Fan Install...LOTS of pics

[honda400ex2003]

very nice, maybe we can get it to be a sticky or a how to also. Very clean and will work well for you. you will never have cooling issues again with that setup. steve

[ae13291]

wow that is a good set up! i dident know they sell that cooler, im still working on intalling my hyabusa oil cooler, but the hyabusa one is a tad bit bigger.

[DirtMonkey]

Sweet thread! Thanks for the write up

[crxjarred]

ok so you have to manualy turn it on and off would it be bad to run this all the time like have the fan kick on as soon as you turn the key would this keep it too cool or is that posibal and would there be any problem going into mud or water good wright up thanks

[NacsMXer]

Originally posted by crxjarred
ok so you have to manualy turn it on and off would it be bad to run this all the time like have the fan kick on as soon as you turn the key would this keep it too cool or is that posibal and would there be any problem going into mud or water good wright up thanks

It's nice to have the fan on a switch so that you have the option of not running it all the time. This allows you to warm up a cold motor faster (without a running fan counteracting that), and allows the fan to be turned off when needed such as if you are doing some high speed runs (enough airflow will be going across the cooler if you are going this fast). You can always splice into your ignition wires so that it runs all the time whenever the key switch is on, but you won't have a choice to turn if off if you want to unless you kill the engine. And this SPAL fan was specifically designed for use off road, so it is fully sealed and waterproof. You need not worry about getting dirt or water into it.

Oh, and sc400ex_rider, the CF air scoops are from Quad Tech....and unfortunately they don't offer them anymore, much like most of their cool stuff they used to make

It's cool this got stickied, thanks to the mod that got that done Glad you guys found it helpful.

Seemed like it would help out someone that wanted to retrofit a bigger oil cooler, like the hayabusa cooler ae13291 mentioned. If you have a stock oil cooler, the install is much simpler, as you do not need to fab up extension brackets. The existing mounting holes on the fan stick out above/below the stock cooler just fine.

I took the plunge and got a XR's only temp dipstick on the way...i'll be sure to report the difference in temps when I can.

Definitely recommend this SPAL fan mod for anyone with a 400EX, snatch one up for 30 bucks new on Ebay like I did while you still can!

I need to write this up but heres a good way i did...

I dont have a headlight, so I just sliced the purple wire going into the headlight harness. I also sliced the green wire, which is the ground and wired it in that way. If you dont have a headlight its a easy way and dont have to run a toggle. Even if you have a headlight, you can wire to your switch. Just wire into the purple or grey wire for power. Of course you will lose your option for your reg or bright lights. (whichever you prefer)

[hypersnyper6947]

I did mine by just running the wires off the fan straight to the battery pos and neg terminals, i wired a toggle in between that so i cant flick it on whenever i want. I mounted the fan with zip ties, they hold it tight and they dont block any air. Unfortunatley when i bought my fan they were $60, so if you can find it on ebay for $30 jump on it Great write up, im glad this got stickied people are always asking about it, NacsMXer you surely did a nice clean install.

If I ever do this mod, I'm doing it slightly differently. I would buy a temp switch for the oil tank. You can set the switch so that at a certain temperature it kicks on automatically and stays on until the temp goes back down.
I would just have to find a way to mount the sensor so it touches the oil and what running temperature is.

But sweet write up and you did a REALLY clean install

[sc400ex_rider]

Originally posted by sc400ex_rider
this is the temp switch its rated at 180*F I got this one out of an electric fan install kit for a car. the threaded part you push into the radiator fins. if you search the web im sure you can find one. or call any major auto electric fan company and tell them you need a 180*F thermoswitch.


i had the sensor pushed into the oil cooler but it didnt work to well. by the time the oil/cooler and sensor got to 180F it was all ready too hot. so i mounted the sensor directly to the head with a good chunk of alluminum. see how i drilled a hole and have the round post going into the tab for maxx heat transfer. this system works really well mounted to the head. the fan will come on after about 5 min of riding (not WFO) and will go off after about 5 mins of being turned off. i was worried about it running to long and killing the battery. im sure this could be further tuned by the thickness of the mounting plate. (a thinner plate would prob cycle on/off faster).


this is the fan i used, i blew my rear shock so i didnt have $60 for a spal i got this one for $10 shipped from ebay. the specs are great 92MM x 38MM (3.75"x1.80") 111cfm 1.1 amp draw 5500 rpm ect. its not waterproof so i dreanched the insides with waterproofing sillicon spray. im not sure how long it will last. i did research on watercooled pc fans and alot of them are "enviromentily coated". i dont ride deep mud or water and after washing it i let it warm up and let the fan kick on for a minute. this fan throws alot of air at the motor and is not to loud. it fit very well with no hacking. this pic is compaired to a reg 80mmx20mm pc powersupply fan. it is very powerfull if you hook power up to it on the bench it WILL start to take off!! if it catches your finger while your trying to stop it, your finger will hurt for 2 hours. im going to mount the fan better than zip ties, this is just a prototype/proof of concept. TY


NEW DELL POWEREDGE SERVER FAN 92mm 38mm VA350DC 110CFM
http://cgi.ebay.com/ws/eBayISAPI.dll...MEWA:IT&ih=008

[tyman2395]

hey would i feel a difference if i put a fan on my stock oil cooler? here is 2 i got