Higher Output Alternator Wanted For S2 Gts25T .

[discopotato03]

Hi all , I'm having a few starting issues with my 33 and I doubt its the battery . It now has to be connected to my CTek charger so that it WILL start when I want it too .

Recently got home after half an hours drive and the cow wouldn't start after I'd shut it down to open the garage door . From cold it fires up quite willingly off the charger but not so well having stood around after a reasonable run out somewhere . When I get it home its back on the charger which claims its around 3/4 charged .

I reckon I need an alternator and I usually have higher output ones than std fitted to my cars if they need changing .

I think I remember reading that some Maxima's had 100 or 120 amp output alternators on them where R33s tend to be 80 or 90 and can be Hitachi or Mitsubishi .

Anyone had a win with a higher output Japanese alternator on an R33 RB25 powered car ?

Cheers , Adrian .

[bubba]

Have a look at a VL BT1 alternator

[t_revz]

unless your using lots of electrical power then a bigger alternator prob wont help. could be a few things... something draining the battery and the charger is compensating. will it start if you use the charger then dont try to start it for a while?

the battery may be at fault and the charger is keeping a surface charge in. what is the charge rate? should be 13.8- 14.4 ideally. but as log as its above 13 it should be enough if all other components are in good working order. i would be checking voltage 30 mins after its been running then check again in the morning and see how far it has dropped. if it has still 12+ in the morning check voltage while cranking and it shouldnt go below 10v

[discopotato03]

I may have had a win with this . I stumbled across a 95 A32 Maxima (VQ30DE) in a wrecker and surprise surprise it had a Hitachi LR1110-705 (110a) alternator on it . They take a bit of digging to remove , hate transverse V6 front wheel drives , but at least when you remove them yourself you get all the fasteners and plugs etc .

I'm not sure if it will be a direct fit to my GTS25T but I think it will be close enough to go in without too much of a fight . The cars ODO showed 196K and the badly cracked rad top tank is most likely what killed that car .

Myself and a mechanic friend freshened up a 2nd hand Z32 300ZX Hitachi alternator for the old Subaru and the upgrade from 50 to 80a output was good - no dim lights at idle . This Maxima alt owes me a whole $35 and the other one cost $50 and a pair of bearings . I'll get this one tested and if good we'll split it and replace its bearings - and brushes if required .

More later , cheers A .

BTW - be wary of old plastic top rad tanks because they can go without warning and damage engines easily . I say the top one because the hot side tanks are always the ones that cop the hottest coolant and generally die first .

[R.3.2.G.T.R]

update plz

[75coupe]

I dont understand how an alternator will help your car start?

it will help charge a battery, but it doesnt aid in starting the car...

you need to ask why your battery charge is being brought down so quickly.

[MrStabby]

I dont understand how an alternator will help your car start?

it will help charge a battery, but it doesnt aid in starting the car...

you need to ask why your battery charge is being brought down so quickly.

Good call. OP should check what the alternator is putting out. If its in the usual 14-14.8 volt range, then turn everything off (ie remove key), pull earth off the battery and connect earth to the battery negative via a multimeter in current mode. This will tell you how much current is being pulled with everything off. IIRC mine was about 20 milliamps. If its a lot more than that, pull fuses one a time and see if the reading drops.

AFAIK VL alternators are 85 amp.