Helping alternator

[Brandon]

Originally Posted by professor245

You didn't catch up on irony in my post eh?

I don't think irony is the word you're looking for. But no, the internet is hard sometimes. Life is hard.

[smokeyfan1000]

If one has 240 with P/S, A/C the 740 alt location swap is a bit involved.

[professor245]

Originally Posted by doperide07

I don't think irony is the word you're looking for. But no, the internet is hard sometimes. Life is hard.

Please do tell the right word...

[professor245]

Originally Posted by doperide07

Because the 740/940 accessory layout is far superior to the 240's.

That's about all that's superior to 240...

[volvomaniac]

Originally Posted by professor245

That's about all that's superior to 240...

...aaaaaand here we go!

I'm begging mods to lock this thread right now!

[professor245]

Originally Posted by volvomaniac

...aaaaaand here we go!

I'm begging mods to lock this thread right now!

Wise words from my best man/friend
Now you decided to join in?
Leave my thread alone it's just getting interesting...

[professor245]

Originally Posted by volvomaniac

...aaaaaand here we go!

I'm begging mods to lock this thread right now!

I'll never work on your car again since is just a 9 LOL

.....sensitive grandpa owner

[Ursan]

Very clever. Very little weight/cost.

If it didn't work, who cares? But since it did,

But wouldn't an external VR achieve the same results?

Because lets face it, it's not an ideal location for an alternator.

I started using one of these on my 242 turbo:
http://www.davebarton.com/AdjustableVoltage.html

Still use one on my 780.

[badvlvo]

Originally Posted by Ursan

Very clever. Very little weight/cost.

If it didn't work, who cares? But since it did,

But wouldn't an external VR achieve the same results?

Because lets face it, it's not an ideal location for an alternator.

I started using one of these on my 242 turbo:
http://www.davebarton.com/AdjustableVoltage.html

Still use one on my 780.

An external VR will help slightly, but the real issue is heat in the rectifier and case.

Adjusting the voltage up will increase the voltage but does nothing for the amperage output of the unit. Cooling the unit will maintain output and reduce the amperage loss from heat soak.

[professor245]

Well today I was tuning my car, to find the combo of LPG mixture, vacuum, and timing so I gave him hell lol every gear to rev limiter (first 3 at least), overheated brakes few times (damn traffic lights) but alt voltage didn't drop like it used to, it only drops when standing (obviously) gets heat soaked, but that disappears with a first streach of the road, so the plan is to make a collector behind the grill to scoop more air at low speeds of city driving.

[professor245]

Originally Posted by Ursan

Very clever. Very little weight/cost.

If it didn't work, who cares? But since it did,

But wouldn't an external VR achieve the same results?

Because lets face it, it's not an ideal location for an alternator.

I started using one of these on my 242 turbo:
http://www.davebarton.com/AdjustableVoltage.html

Still use one on my 780.

Hmm very interesting device

[Ursan]

This thread ranks right up there with the crankcase thread(s)

[professor245]

You brought it back to life

[Ursan]

[klr142]

Good idea! We need to do this on the General Leif. We built a heat shield but an air duct will be even better. We may have killed the alternator after the last race... It was only putting out 11.8V for the last hour of our race...

Originally Posted by professor245

Please do tell the right word...

Sarcasm.

[professor245]

Thanks Kyle, it should work even better in race conditions cause of constant air flow

[shellshock]

This is awesome! If BMW did it, then their has to be some advantage.

Don't understand all the haters in here. It's well known that when it comes to electrical parts cooler = better.

[blueinportland]

Seems like a good idea to me, and if it's working, great! I'd do this but I don't really want an extra pipe hanging around, I might try it out at some point though.

[badvlvo]

Originally Posted by klr142

Good idea! We need to do this on the General Leif. We built a heat shield but an air duct will be even better. We may have killed the alternator after the last race... It was only putting out 11.8V for the last hour of our race...Sarcasm.

Maybe I could build you something more durable. Probably build you one fairly cheap that won't see the heat soak issues and will save you some HP.

[klr142]

The one we have is a super tiny one. I'll see if I can get more info on it at some point.

[Krisverde]

Originally Posted by professor245

That's about all that's superior to 240...

So true.


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