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excobraguy

Member
Joined
Feb 25, 2007
Messages
859
My car has a voltage booster on it, installed by the previous owner. I have no idea where it is but it needs to come off. The voltage on my powerlogger is fine @ 13.6 volts. Under full throttle it jumps up to almost 16 volts. I asked him why he put it on, when I first bought the car and he said he thought he had a voltage problem.......Anyway, where is a voltage booster located? I forgot to ask him and now I can't get in touch with him.........Anyone????
 
If it's a volt blaster style, look around the alternator for either a gray or white rectangular looking box with a push button and a red LED light. It is adjustable under WOT with a very small adjustment screw that is under a little round cover. It will have a brown wire that runs to the alternator connector, one wire that taps into the TPS wiring harness, a red power wire that hooks to the back of the alternator power stud and a black ground wire that typically gets attached to one of the alternator case bolts.

To remove it, you will have to take the brown wire out of the alternator connector, take the wire that taps/splices into the TPS sensor wire, remove the red power wire from the alternator stud and remove the unit from the ground wire. If you find it, and you have a Scanmaster, you can adjust it so that the voltage will be lower under WOT. I personally run one on my own car and have run the Voltblasters since day one on all of my Buicks. If it's a Red Armstrong style volt booster it will have a hobbs switch on it and a vacuum hose attached. I've never installed or removed one of those, but it works on the same principle and should be just as easy to remove. People typically mounted them on, near or behind the alternator.
Hope some of this helps.

Patrick
 
Mine appears to be just like the one discussed--it's now activated at 2.0 volts TPS signal. I feel they're good to create a stronger voltage for both coilpack & esp. fuel pump. Mine essentially bumps the voltage by 3 volts--13.9->16.9...
 

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Mine appears to be just like the one discussed--it's now activated at 2.0 volts TPS signal. I feel they're good to create a stronger voltage for both coilpack & esp. fuel pump. Mine essentially bumps the voltage by 3 volts--13.9->16.9...

I found mine, thanks guys! I think I will leave it on though since I am considering adding alky....
 
With the volt blaster, we really only need to have the WOT voltage at about 14.5-14.9v. Anymore over 15v could possibly cause some electrical issues with blown fuses and the likes. Personally, I would turn it down to those ranges. With the car at idle, and the Scanmaster turned around on the dash so you can see it while under the hood, pop the protective cover off the box, use a small either phillips or flat bladded screw driver, push the test button and turn the set screw counter clock wise until the voltage is lowered to the new set point. Release the test button and your voltage should drop back down to normal levels. Reinstall the protective cover, push the test button one more time to verify the new voltage level and you're good.

Hope this helps.

Patrick
 
I found mine, thanks guys! I think I will leave it on though since I am considering adding alky....

Check with the Alky injection company you purchase your kit from about the volt booster. The increase in voltage might change the alky pump speed???
 
Check with the Alky injection company you purchase your kit from about the volt booster. The increase in voltage might change the alky pump speed???

But if you baseline WOT tune it (which most all do)--any "increase in pump speed" will already be factored in + you'll have benefits of higher voltage supply to ignition components??

Don't know about Razor's pump speed control electronics for Progressive system. He probably would recommend VBooster be removed to eliminate another variable...

My alky system is an older SMC, non-progressive setup & I just tune pump speed while always being under boost (on at 12-13 #) & VBoost @ max after 2.0V TPS.
 
Alky control kit u need to lose the VB

Hey, was this comment made based on some experience with the setup of the alky kit and a voltage booster? If so, what happened? I will call him today to verify, I ordered the kit Monday! Can't wait!

Thanks.
 
It's a controversial subject. I use a volt booster with Razors Alky kit and no problems.
 
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