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Cheap SERIES(????) R/R : VRRPM3 from OMP
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Forum LongTimerGSResource Superstar
Past Site Supporter
Super Site Supporter- Mar 2006
- 35598
- Torrance, CA
Originally posted by salty_monk View Post
I'm another with no interest in Facebook.Ed
To measure is to know.
Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182
Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846
Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf
KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection
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mforbes
Good price, hope it works out great. I really like the CE-902 I put on my gs1100g. I have a digital voltage gauge on the bike and it holds steady right at 13.8 volts. Not like the OEM I had. The voltage jumped up and down while traveling down the road. Over 400 miles on it, since the install.
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The wire size alone makes me wonder about the durability of the units. I'll keep my Compufire and put a Compufire on the next bike.http://www.thegsresources.com/_forum...ine=1440711157'78 GS1000E, Dyna-S ignition, Dyna Green Coils, K&N pods, Delkevic SS 4-1 exhaust, Dynojet Stage 3 jet kit, Russell SS Brake Lines, Progressive suspension, Compu-Fire series Regulator 55402 and Advmonster cree LED headlight conversion.
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koolaid_kid
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Originally posted by OldVet66 View PostThe wire size alone makes me wonder about the durability of the units. I'll keep my Compufire and put a Compufire on the next bike.
No EE expert here, it just seems that way.
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Forum LongTimerGSResource Superstar
Past Site Supporter- Oct 2006
- 13955
- London, UK to Redondo Beach, California
Unit just turned up. No markings on it. No time to fit it yet, I think Nessism has a campfire so we should be able to compare. Looks very similar from the pics I've seen.
Tony at Oregon seems to know his stuff from the emails I've had from him.
How do we independently determine if this is series? I only have a regular multimeter.
DanLast edited by salty_monk; 04-16-2011, 11:23 AM.1980 GS1000G - Sold
1978 GS1000E - Finished!
1980 GS550E - Fixed & given to a friend
1983 GS750ES Special - Sold
2009 KLR 650 - Sold - gone to TX!
1982 GS1100G - Rebuilt and finished. - Sold
2009 TE610 - Dual Sporting around dreaming of Dakar..... - FOR SALE!
www.parasiticsanalytics.com
TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/
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Originally posted by salty_monk View PostUnit just turned up. No markings on it. No time to fit it yet, I think Nessism has a campfire so we should be able to compare. Looks very similar from the pics I've seen.
Tony at Oregon seems to know his stuff from the emails I've had from him.
How do we independently determine if this is series? I only have a regular multimeter.
Dan
The direct way would be to measure the AC current at 500 Hz but we already talked about that; a $20 meter won't do it.
You might be able to compare a SHUNT type with a SERIES type by monitoring the AC Voltage. Depends on the volt meter of course but when as teh RPM goes up the voltage will go up but then stop stop rising as the as SHUNT shorts the winding pairs. On the other hand the SERIES will open up the leg causing the voltage (during that phase to rise to open circuit). So the AC voltage should keep going up on an RMS basis.
I would see if it is not just simply a SCR SHUNT type by testing for a full wave rectifier (see the diode tests for the R/R). Neither the FET SHUNT of SERIES should have the full wave rectifier and would fail at least 1/2 of those tests; they use synchronous rectification which is the main reason they stay cooler.
Jim
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Originally posted by tkent02 View PostPlug it in and go for a ride. If it is a series regulator, the stator cover should stay a lot colder, right?
The scope trace here shows what happend when the phase opens; voltage goes up, current drops to zero and power drops to zero (during the time the phase is open).
Last edited by posplayr; 04-16-2011, 02:44 PM.
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Originally posted by tkent02 View PostPlug it in and go for a ride. If it is a series regulator, the stator cover should stay a lot colder, right?1981 GS650G , all the bike you need
1980 GS1000G Power corrupts, and absolute power corrupts absolutely
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Originally posted by duaneage View PostNot if there is hot oil behind it. On a dry stator model you might detect a difference but not likely since it's bolted on to the engine.
UPDATE; Wheat dog has confirmed a nominal 30 degF drop in operating temp for an 83 GS1100ED with 1166 kit after making this change over to the Compufire-Fire R/R
http://www.thegsresources.com/_forum/showthread.php?t=162677Last edited by posplayr; 04-16-2011, 03:24 PM.
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Originally posted by GS1100GKIF your power requirement at the time is minimal, such as a fully charged battery, not a large draw, etc.
- JC
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I would think any time except for the first few minutes after a start, it would have to result in cooler oil. I bet it does almost as much good for the oil temp as those lame oil coolers, without any chance of springing a leak... (Bending over for ensuing flames) Anyway I will buy a few of these as soon as anyone who knows about these things says for sure it is a true series regulator.
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Originally posted by GS1100GKCorrect. But if the load is great, no shunting, both perform basically the same and at the same levels. It is when you do NOT have a "full" load that the differences become evident.
So will it result in a cooler running bike? Maybe. But not always.
Efficiency is always good, and from your explanations it should result in good longevity. But lower running temps might be an anecdotal effect, not a guaranteed result.
- JC
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