24 volt 100 series (1 Viewer)

[Dave 2000]

Hi all, just looking to mix in some data with my 12/24 thread on the 80 forum.

Do Toyota produce a 12 volt run/24 volt start 100 series?

regards

Dave

 

[100 TD]

I doubt it, if they did it would have to be a special fitment (non production) for military or such, all starters in the parts program are 12 volt, 1.4, 2.0, 2.5 & 3kW for the different variants.

 

[Dave 2000]

I had assumed with the advances in battery technology that the 24v starting system would have been dropped by now and this was add credence to my idea on the 80 forum to lose the 24v starter and go with the same set up that arrives in Australia (all 12v) who have had no problems at all in cold weather.

Thanks for your input it all helps

regards

Dave

 

[100 TD]

I had assumed with the advances in battery technology that the 24v starting system would have been dropped by now and this was add credence to my idea on the 80 forum to lose the 24v starter and go with the same set up that arrives in Australia (all 12v) who have had no problems at all in cold weather.

Thanks for your input it all helps

regards

Dave

Well not quite............battery technology is better than previously, but so are the gear reduction starters. But the thing about 24 volt is lower amps at higher volts but same overall capacity. That is 2 x 12 volt 65 A/h batteries in series = 24 volts @ 65A/h or 2 in parallel is 12 volts @130A/h. Exactly the same amount of stored energy. The turbo diesels still come with 2 batteries standard fitment to give the engine a good spin to fire it up. (The starter is a 3 kilowatt unit.) SO it doesn't matter if it's 12 or 24volt except that by making it 12 volt makes things more common in the wiring harness and no 24/12 change over solenoid to fail. Less components, same harnesses/less inventory, less training, less costs.

 

[Dave 2000]

by making it 12 volt makes things more common in the wiring harness and no 24/12 change over solenoid to fail. Less components, same harnesses/less inventory, less training, less costs.

EXACTLY!!

I have always said when going on an expedition 'less is more' when it comes to the electrical system. I would rather have simple 12v system than the overly complicated 24v version. That is why I intend to strip out the 24v system IF the returning posters on this and other forums think favourably. So far the conversion looks to be going ahead as and when I find a decent car, the ones I have seen have been given a good hammering or seriously neglected, I was offered an absolute pristine example but that was at not twice the going rate for the average model/year but FIVE times the going rate......yeh right, good cars are rare but not that rare!!

Thanks for your input, keep it coming,

regards

Dave

 

[hoser]

Dave, your comment about 24V and advances in technology reminded me of the big push in the automotive industry to move to 42V systems. It doesn't look like it is going to happen anytime soon but if we started on a clean slate, automobiles would surely be on a higher voltage system.

Not to get off-topic because it does sound like a 12V starter would simplify your electrical system here's a good article on 42V systems and it's benefit to efficiency and engine driven accessories:

42-volt electrical systems are (not quite) here! | Motor | Find Articles at BNET

 

[Dave 2000]

Dave, your comment about 24V and advances in technology reminded me of the big push in the automotive industry to move to 42V systems. It doesn't look like it is going to happen anytime soon but if we started on a clean slate, automobiles would surely be on a higher voltage system.

Not to get off-topic because it does sound like a 12V starter would simplify your electrical system here's a good article on 42V systems and it's benefit to efficiency and engine driven accessories:

42-volt electrical systems are (not quite) here! | Motor | Find Articles at BNET

Great article hoser, but reading it I find it is more about reducing emissions by lowering the weight of the car wth lightweight components and cabling ect. If I do not need to fit a third battery to the cruiser I will have reduced weight and lowered enissions right? Plus I will only purchase two batteries instead of three so will have reduced my contribution to global warming

You are right on making the install easier and as mentioned earlier the thoughts coming in are very positive.

Thanks for your input

Regards

Dave