AMP DRAW

[HAMMER]

Looking at fans for the intercooler SPAL and FLEX-A-LITE… 4 to 6.5 Amp draws on the small ones depending on brand/model… Is that too much for the system to handle continuously ???… What wire color and where is a good place to pick off for engine running ONLY power ???

 

[monker]

Going by the wiring diagram for my warrior, there is a small fuse box on the right side of the sled. There are 4 fuses. Two possibilities are the 10 amp fuse (blue/white wire) that powers the gauge, gauge lights, carb heaters, reverse buzzer, and tail light. If running the fan off this blows the fuse, a 15amp may be needed. They are regular automotive fuses I believe. There is also a 20 amp fuse (blue/red wire) that powers the headlights. I believe the electrical system can handle this, but can't say for sure. The biggest concern is when everything starts at once. More current draw through the system just will make the battery take longer to recharge, but you run the risk of cdi/ignition problems if it uses too much.

Personally (I'm putting a SC on my warrior) I would wait until you rode it to see if it's needed. If you add it anyway I would put a switch in for it so on the cold days it can be shut off. I know mountain riding usually doesn't get the air flow because of the snow/lower speeds.

 

[HAMMER]

Thanks for the input monker... I don't have the sled or the shop manual yet to help me figure this stuff out... I know on my Viper when I activated the nitrous solenoid at 7-amps it noticeably loaded the electrical system dimming the lighting... A switched fan setup was my original thought but I figured if the SC is running its heating the intake air so the fan may as well be running too... My piped Vipers under hood temps were 65F to 116F when measured by a remote probe thermometer at the air box last year... Doesn't seem too drastic but I still had an outside air draw behind the windshield for the intake and blocked off the under hood intake draw because cooler air is better for making power... I'm just thinking the SC compressing air at a high rate is going to be heating the intake air up quite a bit, like 200+F, and the flat angle of the intercooler core to the oncoming air isn't going to work the way an automotive application would in the nose of the vehicle with free flowing air through the core at a 90-degree aspect to oncoming air... As you mentioned the terrain I ride is sometimes single track trails slowly poking through the trees up the side of a mountain with the nose of the hood and hood venting packed in powder... Zero airflow across the core... The intercooler would be very inefficient in this scenario without some intervention like forced airflow across the core from a fan...