View Full Version : 07 R1 motor, How many lights will be OK???

09-02-2008, 12:25 AM
Ok, Here is what I will have hooked up on my Buggy and I was wondering if you guys think this will be ok.
4 HID off road lights
1 Yellow rear dust light 40W
2 oval LED brake/tail lights
1 oval LED blue tail/race light
1 SPAL Electric fan.

I know I can run the 4 HID lights with the tail lights because I already have a friend doing that same set up with no problems.
My question is about the electric fan. SPAL makes several 12" fans and one of them pulls 1360 CFM & draws 12 AMPs, the other 12" fan is a high performance fan that pulls 1630 CFM but draws 18 AMPS. These are the same price and I really want to get the better stronger BUT I don't want to always deal with dead batteries.

Is there I big difference between the 18 amps and 12 amps?? Will this motorcycle motor handle all of this?

I am running a very good Oddysey battery.
How much do you guys have hooked up to your motor that draws power??
Thanks for your help.

09-02-2008, 04:52 AM
I would imagine that the system can handle it. It's very similar to a setup I was running w/an RX1 engine - I had more lights, actually. I never had any issues either.

The best thing to do would be to figure out the total wattage draw from you system and compare that to what the R1 will put out. Someone on this site or a bike site is bound to have the total wattage output available from the R1. Do you happen to have a service manual? That should give you the info you need from the engine side.

Finding the actual wattage use of the HID lights may be a bit tough depending on the mfg. Seems many times they say it's a 35w light, but it will draw closer to 50w. Check the literature that came with them.

Go w/the larger CFM fan. They don't tend to run all the time.

Overall, though, I'd say you're good.

09-02-2008, 07:34 AM
I ran 4 hids, 2 100w halogens, 2 led tails, and a 12in fan with no prob on my 03 motor.

09-02-2008, 07:41 AM
Do the math, only way to know for sure.

09-02-2008, 08:34 AM
How much CFM are your fans/fan pulling/pushing?

So far thanks for the info, This does help to know that you guys are running a few high power lights and no problems.

09-03-2008, 12:39 AM
The gsxr 750 puts out about 300 watts, maybe 350? I have to check my service manual again. The r1 is probably similar.

09-03-2008, 09:39 AM
With the 12 amp fan your looking at about 400 watts, with the 18 amp fan about 475. you will be on the negative side with the fan running, but if your cooling system is large enough, your fan shouldn't be running continously at night.

09-03-2008, 04:34 PM
A 12 amp fan poulls 400 watts? 12 times 15 is 180, unless they pull far more than what they are rated for, or your wire has huge resistance.

09-03-2008, 05:05 PM
I was adding up everything, lights, fans......

Also, as a rule of thumb on the amps to watt conversion I got with the worst case scenario at 12V.

09-03-2008, 08:15 PM
This will help you if you know what the motor is putting out. I know my motor with FI needs a min. of 12.?V to keep running.

Electrical Formulas 101

Watts / Volts = Amps

Amps X Volts = Watts

Example: If you have a 100Watt 12V halogen light and want to know the amps, this is calculated:

100watts / 12volts = 8.33amps or 100 / 12 = 8.33

Compared that to a 36 watt HID light, which would be calculated:

36 / 12 = 3amps

Be careful though, HID lights need 7 or 8 amps each during a short startup period.