mat88
Yorkshire and The Humber
Posts: 1,542
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Oct 27, 2020 13:30:00 GMT
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Basically as per title. Is it possible to get a alternator rebuilt to provide a higher output,anywhere in the UK?
On my project I've got a little denso 40amp unit. It runs the engine just fine but..... I'm wanting to run an electric power steering pump. And it won't keep up with that.
Brise offer a "Motorsport" version but it's 700 quid for a 95 amp alternator that is physically the same size as the 40 amp I have. So it must be possible.
And before its suggested. I can't physically fit a big alternator in the bay, certainly not without remaking the exhaust manifolds, turbo link pipe downpipe basically everything haha.
Alternator in question is a denso 129423-77200 the brise one that looks very very similar is a brise type 93mm 95amp (I'd bet my life it's the same Alternator with different insides).. but 700 quid for an alternator seems a little giddy to say the least (especially since the 40 amp one they sell is the exact same one I have that's available elsewhere for 60 quid)
Cheers
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Oct 27, 2020 19:52:29 GMT
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I realise that a bigger alternator would be best, but just how often would the power steering pump be needing the full 90amps? And wouldn't a decent battery provide a suitable reservoir of power?
I'm now going to sit back and listen to the audible wince from all the electrical engineers reading this.......
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Oct 27, 2020 20:07:29 GMT
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what is the vehicle in question?
lots of modern stuff use very high output alternators that are not any larger than the old units.
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mat88
Yorkshire and The Humber
Posts: 1,542
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Oct 27, 2020 21:03:32 GMT
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I realise that a bigger alternator would be best, but just how often would the power steering pump be needing the full 90amps? And wouldn't a decent battery provide a suitable reservoir of power? I'm now going to sit back and listen to the audible wince from all the electrical engineers reading this....... See as much as this is the logic I would normally rely on.. according to the bit of research I've done done. The Astra electric pump draws 15 amp at idle, 40/50 in use and 60 at full lock. But I've only got 40 amp running a fairly modern V8 with coilpacks etc so I thing I'm borderline already. I also thought of putting it on a switch so I could activate it for manouvering but then turn it off in straight lines. Buy not sure if that's a bit rough haha |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Oct 27, 2020 21:12:46 GMT
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what is the vehicle in question? lots of modern stuff use very high output alternators that are not any larger than the old units. It's my Lexus is200.. but I've kinda filled the engine bay with a 4.0 V8 and a turbo amongst other things. And there just isn't physically room to go bigger at minute It's in reader rides you'll see what I mean for space haha |
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Oct 27, 2020 22:46:34 GMT
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Are there not other Electric pumps with lower current draw..... especially lower idle currents (even near zero). I’m thinking Pug 106/Saxo or Skoda Fabia, but sure there are others too?
Nick
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1967 Triumph Vitesse convertible (old friend)
1996 Audi A6 2.5 TDI Avant (still durability testing)
1972 GT6 Mk3 (Restored after loong rest & getting the hang of being a car again)
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I've used a company called Armoto in the past as they specialise in rewinds which is what would be required to up the output. You might need a smaller pulley to increase revs at idle as you'll likely lose some low rev output. If nothing else a phone call to a rebuild specialist will at least highlight the options on the table. Here's a link to Armoto
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Try these guys, Clwyd Auto Electrical 01978 762093
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mat88
Yorkshire and The Humber
Posts: 1,542
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Oct 28, 2020 13:28:17 GMT
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Tried both of these today... Not getting anywhere with either unfortunately
Will keep trying tho.
Cheers
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Oct 28, 2020 14:33:35 GMT
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mat88
Yorkshire and The Humber
Posts: 1,542
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Oct 28, 2020 17:02:33 GMT
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What's annoying is I've found a denso "style" 90 amp in the states.. it's same body as mine but 90 amp. Clearly a Chinese copy but of what.. price is fine. But they want 110 dollars to post it here. Which spoils the job a bit.. www.ebay.co.uk/itm/283462120872If I could find the original denso part number for one in 90 amp. Failing that a Chinese supplier off banggood or whatever. Id order one direct. And I think rewinding one may be a bit beyond my plant fitter hands. Haha. But il have a look for nothing |
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Frankenhealey
Club Retro Rides Member
And I looked, and behold, a pale horse! And its rider's name was Death
Posts: 3,875
Club RR Member Number: 15
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Oct 28, 2020 17:24:24 GMT
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I've seen an alternator run off the diff flange on some race cars
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Tales of the Volcano Lair hereFrankenBug - Vulcan Power hereThe Frankenhealey here |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Oct 28, 2020 17:26:07 GMT
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Are there not other Electric pumps with lower current draw..... especially lower idle currents (even near zero). I’m thinking Pug 106/Saxo or Skoda Fabia, but sure there are others too? Nick That's summat I could look into. But still need more than 40 amp really to run everything on the car as it is |
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mat88
Yorkshire and The Humber
Posts: 1,542
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Oct 28, 2020 17:27:51 GMT
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I've seen an alternator run off the diff flange on some race cars Me and my boss actually discussed that.. as much as I don't hate the idea, I'm not sure of the fab work involved in doing that making a pulley fit the diff, a bracket strong enough to hang an alternator off etc would be more work or less than changing my manifolds link pipe etc Been considerd tho for definite |
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lebowski
Part of things
Hillman Avenger, Clan Clover
Posts: 476
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Oct 28, 2020 17:33:25 GMT
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I think remmoc on here works for Brise or someone, and is capable of alternator rebuilding.
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93fxdl
Posted a lot
Enter your message here...
Posts: 1,999
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Oct 28, 2020 17:42:49 GMT
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How about pinching a Binky idea, run a flexi drive to a remote alternator
Ttfn Glenn
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Oct 28, 2020 18:01:21 GMT
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Are there not other Electric pumps with lower current draw..... especially lower idle currents (even near zero). I’m thinking Pug 106/Saxo or Skoda Fabia, but sure there are others too? Nick That's summat I could look into. But still need more than 40 amp really to run everything on the car as it is Lift some weights and live with no PAS ?  Humungous battery in the boot (benefit of improved traction due to the weight) ?  106 pump draws a bit less than that - mine was fused at 40A but did occasionally blow so upped to 50A but still way more than you've got. God forbid you drive it in the dark & rain & cold - with lights, wipers & heater fan on you're going to run out of amps pretty quick. A rewind with thinner wire seems the way to go. If you get stuck though, there's a place Coventry-ish with a barnful of alternators (literally) who might have what you need - a mate got a high output small frame unit for his rally car from there - I can ask him for the address. |
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Oct 28, 2020 18:26:56 GMT
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If you call Wood Auto Supplies 01484 439000 and ask for technical assistance, give them the oe denso number from your first post plus the 27060-78001 , 27060-78071 toyota numbers you maybe didnt notice from u.s ebay sellers site.
I had a look through their alternator range on wood auto webpage and think something from their part number range ALT30005 or thereabouts is your best chance of finding a higher output version whilst confirming the actual body size of the unit if they have stock.
They are a trade factor supplier only so you may have to enlist your local friendly motor factors help with this but hopefully I'm pointing you in the right direction, just I no longer work as parts manager so cant personally find out for you.
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Oct 30, 2020 19:09:34 GMT
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106/saxo pas pump will have an 80 amp fuse from memory, they can draw a fair few amps especially if you load them up with wide tyres.
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Oct 30, 2020 22:50:40 GMT
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Might be 80A as OE but as I said, mine's 50A and is fine and that's on slicks with a quick rack.
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