Road Racing - Lightweight/Track Day Alternator options? 4th gen F-body style
08-02-2012, 09:40 AM
Are there better options than stock replacement for 4th gen F-body style mounting alternator? Lighter weight? subjected to conditions: sustained higher rpms, higher temperatures
It's going on LS2 in a 98' E36 BMW, mostly track day car, rarely street driven. I am running a 99' F-body PCM, so would like to stick with single wire conection.
08-03-2012, 06:05 PM
Are you looking to keep ot in the same mounting location, or move it up high, like in a Corvette?
08-03-2012, 10:44 PM
4th gen f body location.
08-06-2012, 09:49 PM
My understanding is that the power steering pump will probably be more of an issue than the alternator. I haven't seen too many people complaining or asking about fixes related to the alternator and RPM. The PS pump, on the other hand, has had quite a few threads dedicated to it.
Is your existing alternator new(ish) or a quality rebuild? Is it making weird noises or doing odd things? The one "gotcha" I've seen with LS1 retrofits is making sure the field control wire (I forget the actual name) has a resistor in it, or you'll cook the alternator in short order. I posted this picture of mine not too long ago with the wire / resistor pointed out. It is literally a 2 dollar fix if you get fancy and use heat shrink tubing.
08-07-2012, 11:10 PM
08-08-2012, 07:49 AM
Thanks for the excellent info Karl.
I sold my 5.7 engine with accessories. The 6.0 going back
In my car needs and will have all new accessories. Since buying new I ask the question is there a part that is more durable, performs better, or lighter.
I just went ahead and ordered an AC Delco reman for now.
I found a company that has brackets to allow use of Fbody ps pump and alternator and aligns with ybody crank pulley offset. I'll post pics once installed.
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