03-11-2013, 11:32 AM
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#1
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by sam c.
Does anyone know if an electric water pump or an electric PS pump has ever been tried?
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Sam the 2012 991 (911) comes standard with elec. P/S integral to the R&P & I assume the new Box & Cayman do too. The waterpumps are so light & have nice bearings so I would guess the weight gain, complexity, & expense of elec. conversion would not be worth it. I believe the best aftermarket part void waiting to be developed is a lightweight aluminum pressure-plate. I believe you were replacing accessory pulleys on your box, did you get the new 987 plastic rollers?
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03-11-2013, 11:45 PM
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#2
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Registered User
Join Date: Mar 2013
Location: idaho falls
Posts: 257
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You know what, I didn't. I didn't realize those were interchangeable. Are the 987 pulleys considered an upgrade? Are they stronger, lighter, cheaper, etc? What is the benefit to the 987 pulleys? I only ask because I really do need to replace my pulleys and if the opportunity exists to upgrade while I'm in there anyway, now would be the time to do it!
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03-11-2013, 11:46 PM
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#3
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Registered User
Join Date: Mar 2013
Location: idaho falls
Posts: 257
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03-12-2013, 08:28 AM
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#4
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Registered User
Join Date: Apr 2008
Location: Southern New jersey
Posts: 1,054
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Your idler pulley looks chipped.
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03-12-2013, 09:54 AM
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#5
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Registered User
Join Date: Mar 2013
Location: idaho falls
Posts: 257
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Quote:
Originally Posted by stephen wilson
Your idler pulley looks chipped.
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Yeah, the upper idler pulley is actually almost completely gone. The bearing and all that is still there and working but the outer part of the pulley is effectively torn off! Haha
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03-12-2013, 04:45 PM
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#6
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Registered User
Join Date: Aug 2009
Posts: 1,466
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__________________
2003 Black 986. modified for Advanced level HPDE and open track days.
* 3.6L LN block, 06 heads, Carrillo H rods, IDP with 987 intake, Oil mods, LN IMS. * Spec II Clutch, 3.2L S Spec P-P FW. * D2 shocks, GT3 arms & and links, Spacers front and rear * Weight reduced, No carpet, AC deleted, Remote PS pump, PS pump deleted. Recaro Pole position seats, Brey crouse ext. 5 point harness, NHP sport exhaust
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03-12-2013, 06:14 PM
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#7
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Registered User
Join Date: Mar 2013
Location: idaho falls
Posts: 257
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Yep, that looks about right! $1500 for a complete and fully engineered system. Is it worth it? I guess it depends... if a guy's PS pump takes a crap, I think this could be a pretty attractive alternative.
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03-12-2013, 08:43 AM
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#8
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Registered User
Join Date: Oct 2008
Location: O.C. CA
Posts: 3,709
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Quote:
Originally Posted by sam c.
You know what, I didn't. I didn't realize those were interchangeable. Are the 987 pulleys considered an upgrade? Are they stronger, lighter, cheaper, etc? What is the benefit to the 987 pulleys? I only ask because I really do need to replace my pulleys and if the opportunity exists to upgrade while I'm in there anyway, now would be the time to do it!
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987's are plastic & lighter. I don't know if they are interchangable. Sometimes new Porsche parts supercede old versions. Often Porsche waits until old inventory is sold to supercede into the new parts. My rollers are fairly new so I haven't tried the 987 parts yet.
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