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240z to 280zx Alternator Upgrade IR VR


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#1 gav240z

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Posted 20 September 2006 - 08:09 PM

Hi everyone, I know a guy Arne from classiczcars.com is selling a simple plug that allows you to adapt the 280zx 60amp alternator to a 240z. This is a good upgrade because it has a higher ampage output but also alows the removal of the voltage regulator VR since it's an internal regulator IR.

The other advantages are you can simply replace the alternator with an original one for shows if you are running in concourse categories.

You can find more details here: http://home.comcast..../alt-adapt.html

There is a slight discount for 10 or more orders so I am wondering how many others may be interested in such a purchase. :wink:

#2 Bruce

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Posted 20 September 2006 - 09:17 PM

Gday Gav,
I'll get one if you are doing a group buy,
cheers
Bruce

#3 warrenz

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Posted 20 September 2006 - 09:41 PM

Hi Gav,

I'll be in on that.

Warren

#4 gav240z

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Posted 20 September 2006 - 10:02 PM

That's great so 7 or more to go. C'mon guys this is a great upgrade, it's simple, easily reversible and it's great for those running aftermarket headlights, stereo's & electronic ignition.

The only expensive part is rebuilding a ZX alternator.

#5 zedevan

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Posted 20 September 2006 - 11:10 PM

how many amp is a stock one?

does this hopefully fix the lights getting brighter the higher the revs?

#6 Bruce

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Posted 21 September 2006 - 08:30 AM

I did a similiar conversion on my 1600.
I'm not sure if it is the same, but from memory the conversion involved running a wire across two of the plugs that went into the reg and that was it. I'll see if I can find some more info on it.
It did solve the issue of the lights dimming and brightening on engine revs.

#7 zedrally

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Posted 21 September 2006 - 10:04 AM

It's not as simple as running a wire jumper (although you can, but be prepared to have your battery run flat every day).

The mod is to replace the connecting wire that you speak of with a diode.

Dick Smith sells a plug that mates with the zed connector, 25c buys you the diode, all up cost around one buck.

#8 Bruce

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Posted 21 September 2006 - 12:36 PM

It must be different on the 1600, as I had this mod done for a few years of running and never experienced a flat battery out of it.

#9 dave_hl

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Posted 21 September 2006 - 12:53 PM

Maybe you should all go out and buy a 280zx... believe it or not, it actually has the 280zx alternator already inbuilt. pretty crazy ey?... well i thought so anyway.

#10 lambs

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Posted 21 September 2006 - 01:05 PM

I've been running a Subaru 60A alternator with built-in IC reg for 15+ years on the Z without a problem. No special plugs or diodes.

Another alternative is to get hold of an Ingrams IC regulator to replace the mechanical type. Not sure if they make them any more, but was the most common solution for all Datsuns with a mech reg.

#11 Bruce

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Posted 21 September 2006 - 02:33 PM

Lambs,
Have you got the external reg wired in or have you removed it?
cheers
Bruce

#12 lambs

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Posted 21 September 2006 - 11:04 PM

,Have you got the external reg wired in or have you removed it?


It's been removed.

#13 Huw

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Posted 23 September 2006 - 09:45 AM

think I'm running the Maxima alternator....similar situation, internal regulator, very very simple swap.

Huw

#14 warrenz

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Posted 23 September 2006 - 09:06 PM

Dick Smith sells a plug that mates with the zed connector, 25c buys you the diode, all up cost around one buck.


Let me look into this before we place the order. I will visit Dick Smith's next week. Should not be too hard to work out the correct rating for the diode.

Warren

#15 warrenz

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Posted 30 September 2006 - 08:41 PM

I researched Classic Z Cars on what they actually did. The diode costs all of 29cents and worst case the connector is available from Super Cheap Auto's for $10 in a bubble pack. Dick Smith do not sell the connector but J Car supposedly does but I have not had time to go there yet.

I will make one and see how neat it can be packaged. If it works out OK I am happy to make them for others.

Warren

#16 warrenz

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Posted 21 October 2006 - 05:50 PM

I now have the parts to make one and they come to the grand total of $8. (Supercheap Auto for the connector and Dick Smith for the diode)

I will put it together over the weekend, the only issue will be making the back of it look OK. Some experimentation required.

Does anyone actually need one now, or was it just nice to have for later when you get around to swapping the alternator? Which is my situation.

Warren

#17 wedgey

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Posted 13 November 2006 - 11:18 AM

hi warrenz


sounds like i need one

let me know if everything went ok
and how much the finished product would be
your labour and parts

thank you
robert

#18 gav240z

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Posted 13 November 2006 - 06:43 PM

Hi Warren, I am interested in this modification. My ZX IR Alternator is at a mechanic but I am hopefully picking it up soon. I plan to do this modification after I recondition the ZX alternator, so it's a planned future upgrade but the current alternator works fine and I haven't been driving the Z much of late so I haven't been in too much of a hurry.

#19 warrenz

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Posted 26 November 2006 - 03:23 PM

Hello

Sorry for the delay but been trying to catch up since trip to Japan.

I put it together and the hardest part is covering the rear of the plug and making it look acceptable. I have sealed it with a butyl putty and covered it with race tape. This is functional but a better solution is needed to make it look more professional. If anyone has any ideas.

Wedgey - you can have the prototype for $10

Warren

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#20 wedgey

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Posted 27 November 2006 - 06:38 AM

hi warrenz


you used to be able to buy a plastic dip

do not know if you can still buy it

or clarke rubber may have tube rubber that would fit over it

robert




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