anyone had try of put a on/off switch to the feed wire of the alterator , put off just before the race and put on at the end of the pass

 

it would be easy, but you would gain nothing from it.

Especially since the pulley is still turning.

 

It would be easier to turn your lights off on the track. Don't go up to the line with a dead battery. The alternator only sucks up HP when it is under high load conditions. The higher the load, the higher the HP loss....

So turn off all uneeded electrical accessories. EG. Electric fan(s), head lights, subwoofer amplifier, etc...

Putting a switch on that is not a good idea. Look for power elsewhere.

 

If you want to gain some power look at an electric water pump!

6-10 ponies at the wheels!

Meizer has a very nice one... going to get one for my Mach1.

Cheers

 

TC89LX (a member on here) runs 9.5s or so at about 138-139mph. He has tested this electric fan thing out..... If he leaves the fans on during the run, he loses about 2mph.

Now try and tell me the alt does not have to work harder w/fans on.

OK.... take off serp belt, start motor. Go turn alternator by hand. Now turn headlights on and try to turn the alternator....

 

i mean by turn off alt switch just after pre-staging and turn on right after the 1/4 line , and when i m at the track every accessory is off even hand brake is on the first step to turn off day running light

just make the test , un plug your feed plug when your car is at idle and you will see a difference

 

i think your looking for power in all the wrong areas dude. Might as well remove the front sway bar, wiper arms, antenna, fog lights, and their heavy brackets, passenger seat, spare tire, air pump air conditioning.

But if you really want a switch on it, go for it.

BUT... think about this say your battery is weak and your fuel pump (on the track under high load) gets less and less power by the end of the track because alt is off. Also... spark getting weaker and weaker and starts blowing out by mid track.


j/k give it a shot and let us know how it turns out.

 

Interesteing, guess you cannot believe everything you read???!!!

I have seen dyno charts for the electric pump senario.

:biggrin:

 

The load from the alternator is negligible when compared to the power steering or water pump.

If you're that concerned about power loss at the fan belt at the track, run a short belt.. or if you got the guts, no belt at all! Personally, I plan to remove the belt just before I stage, and replace it at the end of the 1320...

 

I've tried removing the belt several times....on some cars i've seen as much as a 5mph gain, on my car zip. makes no sense...