24v start wiring help

hey wanted to do the 24v start deal on my dragster...I've searched some old posts but can anyone get me a description about how to do it the CSR (without charging me $600) way so that I don't have to buy a 24V battery charger or disconnect the batteries to charge them?

Thanks

 

24V Start Wiring

I had to convert my starting system to 24 volts because the 12 volt starter would not turn my new motor over fast enough (cranking speed) for the MSD 44 to fire. I used two $38 four pole solenoids (each solenoid has 2 NO contacts, 2 NC contacts, like a winch motor uses) and now my motor turns fast enough to fire AND I can charge both batteries with a single 12 volt charger. I have $76 invested in my 24V starter system, other than the starter itself. Another benefit is, that I now only have two motorcycle batteries onboard at 12 pounds each instead of 2 38 pound batteries. 24 volts make a huge difference in cranking speed AND amp draw required. A 16V battery did not spin it fast enough to fire the magneto. We use a quick disconnect battery booster when cranking in the pits to save the motorcycle batteries for the starting line. NOTE: I did burn up my first starter because it would not take the 24 volts. I found that the Tilton "Severe Duty" handles the voltage fine with zero problems. Worked for me on my 526 KB hemi, 14-71, 42% over hi-helix. Spins it fast and fires fast (builds oil pressure quick too prior to firing it ). Been using this set up for three years. Send me your email address and I will send you a schematic showing the wiring required. Good luck.

 

If you just clamp the charger on to each battery individually you don't have to disconnect them.

 

24 Volt Start

As long as you can easily get to both batteries, clamping on to each battery individually works fine, but if you are trying to use a single charging post in the pits to charge both batteries at the same time, not so much. I use my set up with a single 12V battery charger in the pits and can charge both batteries at the same time. I can also use a standard battery maintainer at the shop to keep both batteries charged in the off season. Just another .02 worth. Keep the change if it isn't worth what it cost.

 

would you mind sending one also?can i get 12 volts off it for ectric shift and a few other 12 volts i'll be using on blown door slammer?
don
hotrodharley@citlink.net

 

Casey with a MSD 10 16 volts is all you will ever need, try a rock racing 16 volt....Ronnie Davis is a dealer.

 

24V Start Wiring

Hi TADHemiracer

What kind of battery ( motorcycle) did you use ( dyna batt or similar? )

Thanks in advance
Shoebox

 

batteries

jody unfortunently(sp?) my car was made to hold two of the odyssey 12V in the nose, so the 16V would be a hassle.

Mike, what's the part number of that solenoid?

Alky...funny story, glad your ok and most importantly your shop. I have tried the varying my gap also, but thanks.

Checking magnet strength today. Will compare to my MSD wheel on other motor.

 

24V solenoid

Mike, not sure if hemi is up this morning so I haven't gotten diagram he made yet, but do you think the solenoids he is using are 24V? If not are you able to charge both batteries with one charger with your setup? How did yo make it work, if you don't mind?

thanks

 

I would like to comment on the 12v/24v starting deal. 24v is the way to start a blown motor with 14.71 and 44 mag. The way to do it is to mount a heavy duty 12v solenoid as close to the batterys as possible, the robotics type or heavy duty truck. This solenoid should be energized by the start wire. There are several ways you can rig up to charge the batterys, we use 24v. Run cable from the solenoid directly to the starter and make a jumper from the cable to the small starter connection on the solenoid. This is important because the solenoid needs 24v to hold in properly and not arc internally. With this setup there are no hot wires running through the car except from battery to solenoid, nothing sparks if you touch, nothing shorts out during a run. This setup will last for years with no maintenance. Any of the premium starters will work. Another note on starters, although you may be using a hemi starter, your flywheel almost certainly has a 168 tooth chev ring gear so the starter needs a chev drive.

 

24v

I have a diagram if you need one.

Sean

 

two motorcycle batteries wired together for 24 volts. We use an industrial 24volt selonoid that can be activated with either + or -. I like to use the - side because it is only one wire to the drivers compartment. I would recommend a heavy duty - ground base. If you need a diagram i could draw one up for you. The two batteries are only 550 cca but they crank all day without a problem.

 

24 Volt Start Schematic and Battery info

I use 2 12 volt motorcycle batteries, gives me 12 volt and 24 volt and allows me to use a single 12 volt charger.
The batteries I use I bought from Batteries Plus, they were Xtreme X2-20L, a 17.5 Ah, CCA 270, about $114 each, 2 year full replacement warrantee. 15 pounds each. 6.8 x 3.4 x 6.1 inches. I can send a schematic to anyone interested. Thanks

 

24 Volt Start Schematic and Battery info

Send me your email address so I can send you the attachment showing the schematic for the 12/24 volt system I use. I detailed the type of batteries in a post a few minutes ago.
Thanks,
Barry

 

24V start..

Hi Barry !
Thanks a lot for the tip, here is my E-mail: geir.bjonnes@bluezone.no

Thanks once again
Geir

 

If you would, please send me a copy of your schematics. It would be very much appreciated and thank you in advance.

David
Davidlewis77@yahoo.com