You must be logged in to rate content!
4 minute(s) of a 718 minute read
8-30-2011
Good news, I have been able to carve out enough time to finally build the harnesses. They are completed. I simply need to connect them and install the fans. I will be working on it tonight when I get home for a little while. I will update you all how it turns out.
The harnesses look good. I used 10 gauge wire for both power and ground. I also installed a couple of quick disconnects:
At the fans, I used weatherproof bullet connectors.
near the relays, I used insulated dual bullet connectors which allow me to disconnet the power and ground quickly and easily.
I installed the fuses on the fan side of the quick disconnects, utilizing screw down glass tube fuse receptacles with 30 amp fuses.
Each fan is on it's own dedicated harness and relay, power and ground.
I created a "Y" connection for the signal wire from the ECU to signal each relay.
Should work perfectly..."knock on wood". Sorry for the delay, but personal things took priority, and I just did not have the time to get to this until last weekend...
I am excited about using the Spals...Best fans out there. Let's see how they perform.
9-7-2011
Well, I found I had a mess with the wires connected to the relays for the fans...I do not know how they got connected that way as I do not understand how the fans would have even fired up...Anyway, I pulled up a fan diagrams off the web and figured it all out. The harnesses are all correct on the relay side now as well. So, I drained the fluid, removed the radiator and the "other" electric fans, and looked closely at the brackets the guy sent me to mount the Spals, and I noticed that these brackets will not work well at all...Here is a pic of them:
So, I decided not to even attempt to make these work...I contacted the Spal dealer and ordered these instead:
These brackets include the foot bracket and a metal strap. I decided that I am tired of pulling the radiator out and reinstalling it again and again, so I made an executive decision to make a custom mounting strap that will mount horizontally across the radiator at the top and the bottom. Then, I will mount the fans and the mounting brackets pictured above, to the metal straps. Much cleaner, much more secure and I do not have to worry about ever damaging the core with tie straps pushed through the radiator. Plus, Spal recommends that the fans are mounted 1/4" off of the surface of the radiator to allow for any potential "fan flex" due to accleration and such while driving. These straps will accomplish just that distance. Of course, I will not receive the brackets until this Friday, but at least, just in time for the weekend to complete.
Also, I plan to fabricate an aluminum shroud...I will design it with rubber flaps covering additional holes in the shroud or with some sort of venting so that I get the efficiency of the shroud at idle, but the air flow through the shroud when driving at cruising or higher speed. I do not wish to experience any further shroud "deadheading" like I did with the previous fans/shroud set up that I sold. We wil see how it works. I have already drawn the design for the shroud.
Unfortunately, this will delay me a little, but at this point, cooling is critical, and I do not wish to blow my motor by shortcutting anything.
Another addition, I decided to not utilize the Autronic traction control as it requires me to add additional ABS wheel sensors that it is compatible with...So, I am purchasing a Race Logic traction control system, installing it and having Darin tune that too. Did I talk about blowing the budget on this project some time ago??? What budget??? 
I will keep you updated.