Project Rainbow Unicorn 2013

[shownomercy]

Dunno if DC motors care about pulsed frequency as long as Vpk is within rating. I would put a flyback diode across the fans just to be safe.

There are pieces of audio equipment that drive DC fans off the speaker jacks. Granted, the power consumed by the fan is really small compared to the speakers, but the fan is happy with everything in the audio band, ie 20Hz-20kHz.

Believe the highest driving freq I can go is 1000hz, so gotta play with the frequency and low DC a bit more. I have 10amp, 50v diodes for flyback protection, just need to install em with final setup.

correct, brushed motors generally are unhappy about that.

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Guess I shall see how they last with it, goal is to use this a trial to then PWM my fuel pump.

[shownomercy]

Got another not so fun but cool none the less part in today. Cover up for some future, "clearancing"





Tired of my torque arm smacking into the body so chop chop time, then 3m seam seal this guy to car to cover hole.

Ref

[shownomercy]

Well, managed to blow both SSR bricks today, so back to the drawing board.

Ordered two more and gonna do some more research on what went wrong. Not sure if I was hitting em with too much or too little frequency.

[SSlowBoat]

Well, managed to blow both SSR bricks today, so back to the drawing board.

Ordered two more and gonna do some more research on what went wrong. Not sure if I was hitting em with too much or too little frequency.

probably too little. interesting they went that quick

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[shownomercy]

Installed new SSR's today, and wired em to be switching the negative side of fan, versus previously switching the hot side. Also made sure fly back diodes were in.

So far so good, pretty cool to see em slow start at 25% then up to 100% over a few degrees.

[shownomercy]

Finally got the exhaust out the back of the car, full 4in stainless all the way.





dat polished tip


Somewhat supra status unlocked






Quick walk around
[YT]g30EQZJLw08&ab_channe[/YT]

[SSlowBoat]

Finally got the exhaust out the back of the car, full 4in stainless all the way.





dat polished tip


Somewhat supra status unlocked






Quick walk around
[YT]g30EQZJLw08&ab_channe[/YT]

i had a baluga whale single tip just like that on my first 94 camaro with shorties catless straightpiped. sounded HORRIBLE. yours sounds great, a little quiet

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[shownomercy]

Its wayyyy to quiet, but thats the current direction my life is going lol

[shownomercy]

Time to redo the battery and alternator wiring. Gotta get her ready for the dyno

[shownomercy]

Old stuff out, pretty sure its all CCA so took a weight hit but such is life


These are the problem areas I was worried about




But did manage to get a nice terminal block to get all the hot leads off the shut off switch


Few less things to potentially go wrong. I hope.