High output Alternator - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

democong · 12-23-2009, 06:51 PM

Want to buy '95 240sx high output alternator for USDM KA24DE engine.

JEDIs13 · 12-23-2009, 06:57 PM

get a nissan quest alternator.. they are 125 amp IIRC. and fit on a KA with a little modification

democong · 12-23-2009, 08:15 PM

Quote:

Originally Posted by JEDIs13

get a nissan quest alternator.. they are 125 amp IIRC. and fit on a KA with a little modification

Thanks, read about the mods req'd. for the quest alternator after doing some searching on the forum.
I need about 120 to 160+ amps at idle.
I'm looking to achieve this with a rebuilt or brand new oem 90 amp '95 KA24DE alternator.

upsdude · 12-23-2009, 08:51 PM

um...is there a way to squeeze out more amperage out of an alternator rated at 90 amps max?

democong · 12-24-2009, 08:54 AM

Quote:

Originally Posted by filiperuvian

um...is there a way to squeeze out more amperage out of an alternator rated at 90 amps max?

Anything's possible.

DreamN · 12-24-2009, 09:22 AM

If that's the case, why not start with the quest alternator in the first place?

GSXRJJordan · 12-24-2009, 10:20 AM

Quote:

Originally Posted by democong

Thanks, read about the mods req'd. for the quest alternator after doing some searching on the forum.
I need about 120 to 160+ amps at idle.
I'm looking to achieve this with a rebuilt or brand new oem 90 amp '95 KA24DE alternator.

Not going to happen with the stock alternator.

Do the Quest alternator, and you'll get 125A just off idle (1500rpm or so). That's A TON. If you want bigger, you'll have to retrofit a 'real' high output alternator for car audio applications, which have outputs of ~300A, and cost a ton ($400+).

democong · 12-25-2009, 09:58 AM

I know 'some guy' on the web mods factory KA24DE Alternators to output over a 100 amps at idle (600-700 rpm) and 220 max at 1500 rpm. He's been doing this for all other vehicles probably since the early 2000's.
I'm looking to see if anyone on here knows about this, and has tested it out on a 240sx. Or if anyone on here, with a legit electrical business, can obtain a used 80 or 90 amp KA24DE alternator (95-96 240sx), modify rectifier, add as many diodes as necessary, replace bearings and all parts necessary to make the alternator a fully functional direct drop-in/plug-in.
My car has very good grounds at the moment so power side cable requirements (alt. to batt.) will be suggested by builder.

Thanks.

democong · 12-26-2009, 07:25 PM

If a high output alternator were available for your vehicle as a direct, no-modification-necessary- drop-in, would you get one?

democong · 12-29-2009, 04:13 PM

Ok people, found some Engineers out in Dallas, TX. that can rebuild the stock Hitachi's to output ~70 amps @ idle (600-700 rpms), and ~165 amps at about 2500 engine rpm.
send pm if you're interested.

Thanks for the help guys.

Jonathan Rivera · 12-29-2009, 04:31 PM

hey what about for and sr20det. can u use the quests alt?

democong · 12-29-2009, 06:20 PM

Quote:

Originally Posted by Jonathan Rivera

hey what about for and sr20det. can u use the quests alt?

Don't know, but I'm sure anything's possible.

12-23-2009, 06:51 PM	#1
democong Join Date: Apr 2008 Location: Houston, TX Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	High output Alternator Want to buy '95 240sx high output alternator for USDM KA24DE engine.

12-24-2009, 09:22 AM	#6
DreamN Post Whore! Join Date: Nov 2006 Location: SoCal - 818 Age: 39 Posts: 10,692 Trader Rating: (54) Rides Gallery: DreamN Feedback Score: 54 reviews	If that's the case, why not start with the quest alternator in the first place? __________________ - Jimmy Wanted: TBD For Sale: TBD

12-25-2009, 09:58 AM	#8
democong Join Date: Apr 2008 Location: Houston, TX Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	I know 'some guy' on the web mods factory KA24DE Alternators to output over a 100 amps at idle (600-700 rpm) and 220 max at 1500 rpm. He's been doing this for all other vehicles probably since the early 2000's. I'm looking to see if anyone on here knows about this, and has tested it out on a 240sx. Or if anyone on here, with a legit electrical business, can obtain a used 80 or 90 amp KA24DE alternator (95-96 240sx), modify rectifier, add as many diodes as necessary, replace bearings and all parts necessary to make the alternator a fully functional direct drop-in/plug-in. My car has very good grounds at the moment so power side cable requirements (alt. to batt.) will be suggested by builder. Thanks. Last edited by democong; 12-26-2009 at 07:14 PM..

12-23-2009, 08:51 PM	#4
upsdude Post Whore! Join Date: Apr 2009 Location: Fontana (the good part) Posts: 2,721 Trader Rating: (46) Rides Gallery: upsdude Feedback Score: 46 reviews	um...is there a way to squeeze out more amperage out of an alternator rated at 90 amps max?

12-26-2009, 07:25 PM	#9
democong Join Date: Apr 2008 Location: Houston, TX Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	If a high output alternator were available for your vehicle as a direct, no-modification-necessary- drop-in, would you get one?

12-29-2009, 04:13 PM	#10
democong Join Date: Apr 2008 Location: Houston, TX Posts: 13 Trader Rating: (0) Feedback Score: 0 reviews	Ok people, found some Engineers out in Dallas, TX. that can rebuild the stock Hitachi's to output ~70 amps @ idle (600-700 rpms), and ~165 amps at about 2500 engine rpm. send pm if you're interested. Thanks for the help guys.

12-29-2009, 04:31 PM	#11
Jonathan Rivera Leaky Injector Join Date: Feb 2009 Location: honda land very fucken funny. cali Posts: 106 Trader Rating: (1) Feedback Score: 1 reviews	hey what about for and sr20det. can u use the quests alt?