Hey guys,

I am having an issue with my Busa powered mini rail. Maybe you guys can help me out. Everytime I hit some rpms, one of my HID lights flickers on! I am having some charging issues also. Could this be a ground issue? Has anyone ever seen this? Also right now when I turn on my HID's my ignition will cut out. I am sure it is related but I just need a starting point of where to look.

Jerry

Sounds like a great place to start. With the grounds that is. Most guys take that half of the circuit for granted. Do you have the Busa Schematic in case you need it? I believe that they're specific to the year.

Carl

Thanks for the reply. I do have the schematic. I just thought that was weird!

where are you located? If your located in San Diego - Shig with Heywire Solutions is really good at this stuff.
Are you feeding enough power from the ALT to provide power to all components and turn on the lights also?? Startup on HIDs is powerfull and if your turning on 2 or more at a time, thats a big draw to the system and it may be pulling more amps then the ALT can supply.
Ground it big and also a good battery with alot of cranking amps.

Try this, after the lighst are on, can you then start it and run it??

Grounding problem…Sand = silicate. And silicate will not conduct. Sand gets everywhere and brakes down connections. Check your negative connection at the battery then check it at the frame, or where you have it grounded. Also check the ground from the motor to the frame if there is one. I can't see your set-up so it's kinda tough.


Zilla

takes tons o 'trons to kick off the HIDs. Like they said, check all of your connections and grounds especially.

Is the light that flickers always the same one? or do they both do it intermitently? If it is the same one... double check all connections with the light and its power supply... gonna be a high voltage supply so be carefull, but need to check the voltage coming off of it (probably need a HV probe).

The charging issue... without even attempting to turn on the lights... start it up and disconnect the battery. If it dies or anything funky happens you have an issue with your alternator.

With the combo of problems going on... more than likely either have a loose connection affecting everything... or one of the HID power supplies is bad or... your alt. is taking a dump which could also be caused by the HID power supply loading it... all in all, sounds like the alt. isn't generating enough voltage for the HIDs, coil, and the rest of your system... if everything is good to go you may just need a bigger alt.

Chumm is on the $......HID's pull about 20-25 amps per during start up. That could be an issue if you are starting more than one at a time. As far flickering HID's at rrr's????That is a wierd one, unless you have a shorting problem in the swtich under vibration..... I didn't even ask....is that with the HID's on or off?

The flickering of the Hid's is when they are off. I only have one set and it is always the same one that flickers on at rpm's. It almost seems like maybe some power is leaking through to the lights. Maybe through ground?

This car is bike powered so no alternator. It has a stator and regulator. I am seeing 14.4 v at rpm with no accessories on. With HID's, both cooling fans and Rear brake lights, I am seeing only 11.9. This car has a new stator and regulator in it already and everything checks out with both of those. I need to test each accessory to see ho many amps are pulling on the system. I know whis sound like a lot of stuff to run, but TOMPRO , (who is the builder)runs this stuff all of the time with no issues. Thats what makes me think it is a ground issue. The big ground wire off of the battery grounds to the engine and then a small 8 guage wire goes from the - post to the chassis. Maybe this is the issue? I also still run the stock Hayabusa battery in it. Maybe I need to go bigger?

Thanks for all of the replies so far!

Since all the other accesories are going to be grounding thru the chassis, I'd run a 4G to the chassis and make sure that you get a good solid ground .....ie no paint where the it's grounded. As far as the light flickering when it off at RPM, I would definetly check the switch that controls it. To turn on the balast, it takes a + and a -. So my guess would be that the switch controling the + to that light is somehow making contact thru vibration or whatever. If it's running thru a relay, swap that too. Both are cheap items to swap, so that'd be where I start. As far as only being at 11.9V with all that stuff on, that isn't good. It isn't that bed, but I'd try to find out if you can get the stator rewound to get more output from it.


BTW, just MHO

You are correct in running the groung to the engine from the battery. Many do it from battery to frame and then to engine. This always causes problems. HV is correct in suggesting a larger gauge wire from engine to frame. The more ground the better. Also I agree that you must have a bad light switch. Are you using relays to power your lights and fans? Most switches cannot handle that much current. This could cause a problem also.

I will try the grounds. Yes, I am using relays for everything. Each fan and each set of lights has its own relay. ( I also have a set of lazer stars)