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andk5591
Samba Member
Joined: August 29, 2005
Posts: 16805
Location: State College, PA
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 Posted: Wed Oct 24, 2012 3:42 am Post subject: How long can I run without charging system for testing? |
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Doing a top end rebuild on the project, which is just a pan. Has a 4 wire alternator and would rather not have to deal with the harness yet. Did a couple short rides (couple miles) on just a fully charged battery and it was fine - but wondering how long I can drive without the charging system connected and still supply good power to the ignition system? The battery is only supplying power to the coil. Want to be able to get my rings reasonably seated before I go to much further. Tried a search - no luck.
Thanks!
_________________
D-Dubya Manx clone 1914. Ex wifes car.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Ex-wifes car.
66 bug project - Real patina & Suby conversion
There's more, but not keeping them... |
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mxracer
Samba Member
Joined: April 09, 2011
Posts: 568
Location: NC
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| Posted: Wed Oct 24, 2012 5:22 am Post subject: |
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| You should have 200 miles or so on the battery. Should be plenty of time to make a couple runs to seat the rings. |
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Max Welton
Samba Member
Joined: May 19, 2003
Posts: 11117
Location: Black Forest, CO
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JoeD
Samba Member
Joined: October 09, 2012
Posts: 146
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| Posted: Wed Oct 24, 2012 5:42 am Post subject: |
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| I know you can drive more than 190 miles because I did that for years when I was too broke to buy a new alternator. |
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gt1953
Samba Member
Joined: May 08, 2002
Posts: 13955
Location: White Mountains Arizona
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| Posted: Wed Oct 24, 2012 7:03 am Post subject: |
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I did drive 200 miles with no altenator. Took the car back the shop, yes 200 miles. Did have a spare deep cycle group 27 battery as well with me.
_________________
Volkswagen: We tune what we drive.
Numbers Matching VW's are getting harder to find. Source out the most Stock vehicle and keep that way. You will be glad you did.
72 type 1
72 Squareback
({59 Euro bug, 62, 63, 67, 68, 69, 73 type ones 68 & 69 type two, 68 Ghia all sold}) |
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Wayne26
Samba Member
Joined: November 18, 2010
Posts: 284
Location: Houghton Lake MI
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| Posted: Wed Oct 24, 2012 8:24 am Post subject: |
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it depends on the battery, fully charged means nothing.
is it a 6 yr old no name 400CCA battery ready to need replacing or a 6 month old 750CCA high quality battery.
I did a 4 hour trip on a new battery in my sand rail but it was 875CCA and pushed started it after every stop. when I got home it had just enough juice to start it. |
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andk5591
Samba Member
Joined: August 29, 2005
Posts: 16805
Location: State College, PA
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| Posted: Wed Oct 24, 2012 8:29 am Post subject: |
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| Max Welton wrote: |
Yeah, a healthy battery can power the ignition for hours. I've done just that when my generator brushes failed and I also had the FI pump and ECU to supply.
But now I'd like to see a picture of you driving just the pan around. 
Max |
This was first test drive a week or two ago to make sure everything works on my extended pan and to get the engine warmed up to do leakdown and compression test - which is why I am doing the rebuild LOL
_________________
D-Dubya Manx clone 1914. Ex wifes car.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Ex-wifes car.
66 bug project - Real patina & Suby conversion
There's more, but not keeping them... |
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Max Welton
Samba Member
Joined: May 19, 2003
Posts: 11117
Location: Black Forest, CO
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jfats808
Samba Member
Joined: December 10, 2007
Posts: 5022
Location: oahu hawaii
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| Posted: Wed Oct 24, 2012 2:07 pm Post subject: |
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Love the 2x4 steering column support deal thats also serving as psuedo door. All you need.is.is shades and a beanie! Gas can strapped down. Love it.
_________________
2276 IDA's 86C 11-1 DD
| Rockstar Suzuki wrote: |
You might as well put 10 year build in your bullshit sig, as it will NEVER run. Also your a dick |
You can always learn something new, even from a fool.
Check your oil levels routinely! |
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FV195
Samba Member
Joined: February 19, 2005
Posts: 480
Location: carlisile, pa
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| Posted: Wed Oct 24, 2012 11:25 pm Post subject: |
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| Modern formula vee race cars do not use a charging system at all! scoops direct cooling air, not moving, not cooling. I run a small AGM battery(jump box size) car will start many times and do 2 45 min. races no sweat, I charge over night. but have never run out of juice. First weekend in Apr. will mark 50 years of FV being a class in the SCCA. big race at Roebling Road Raceway, near Savanna, Ga. |
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Quokka42
Samba Member
Joined: December 02, 2010
Posts: 3117
Location: Melbourne, Australia
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| Posted: Thu Oct 25, 2012 12:51 am Post subject: |
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Standard points ignition and coil ~ 4A, small car battery ~ 40Ah = nearly 10h!
Your "Starter type" AGM battery is 17Ah at 20 h rate ~ 3-3.5H
AGM batteries can only tolerate about 200 cylcles, though.
Car battery can keep you going a long time, even with an electronic ignition drawing average 8A you will last more than 4h on a small battery - but always recharge your battery as soon as possible, Lead Acid batteries do not like to be stored in a discharged state.
I can actually provide a lot more technical information on batteries if people are interested, it is a major part of my day job. |
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andk5591
Samba Member
Joined: August 29, 2005
Posts: 16805
Location: State College, PA
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| Posted: Thu Oct 25, 2012 6:35 am Post subject: |
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| jfats808 wrote: |
| Love the 2x4 steering column support deal thats also serving as psuedo door. All you need.is.is shades and a beanie! Gas can strapped down. Love it. |
It's actually a 1x3 and a 1x4 (I think) and a muffler clamp. Ignition "toggle switch" and remote started switch zip tied to the side of the seat. Totally hi-tech 
Hey - last body off build - I sat on a milk crate, used 2 broomsticks to steer and used the same "fuel cell". It works for what I need to do for initial testing. On this build, I stretched the pan 14" and change. Had to lengthen cables, shift rod etc, plus did my first weld in adjusters on the beam. Needed to give it a good blast up and down my lane (mile long dirt road) to verify that everythig worked (it did) and nothing broke (it didn't) and to get engine warm for tests (it failed).
Today doing pistons, cylinder and heads - after welding in another crossmember by the rear tranny mount for rear body support, then serious body work/fabrication. Having a ball!
_________________
D-Dubya Manx clone 1914. Ex wifes car.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Ex-wifes car.
66 bug project - Real patina & Suby conversion
There's more, but not keeping them... |
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| Back to top |
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