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Registered User
Join Date: May 2012
Posts: 157
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4.0 964 motor
Hi,
I need to rebuild my 964 motor and am looking at different options. Is anyone familiar with a 4.0 motor for a 964. I saw Singer is installing them in there cars, but I have not been able to find any other information. Thanks |
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Max Sluiter
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They are done by Ed Pink and are not for the faint of wallet.
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1971 911S, 2.7RS spec MFI engine, suspension mods, lightened Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance |
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Registered User
Join Date: May 2012
Posts: 157
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I am familiar with Ed Pink, but was not thinking of going this route.
I was wondering if anyone else builds them, their reliability and availability of parts. |
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That Guy
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Try talking with Jae at Mirage International in San Diego (Miramar to be exact). He builds the 3.8L Singer engines. He is very knowledgeable, pick his brain about a 4.0L.
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Jon 1988 Granite Green 911 3.4L 2005 Arctic Silver 996 GT3 Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1 |
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Registered
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I've built a couple and other than bragging rights - it's not worth it
SO much machining and clay . . . It's like building three engines. Anyway, even if I had the money for the parts I wouldn't bother building one for myself. Too many limiting factors
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1973 Porsche 911 RS 1981 Porsche 931 Euro-Intercooled-GT 1984 Porsche 911 Euro Carrera widebody 1987 Porsche 924s Rallye Spec Instagram: @soyracer |
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Registered
Join Date: May 2014
Location: T-Town
Posts: 316
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This is the Ed Pink 4.0
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I ROC!
Join Date: Feb 2004
Location: Long Island, NY
Posts: 390
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God, that's beautiful. Any body know how much that is? $60-75K?
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Registered
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This looks great too...
![]() Call Supertec, they may be able to with their supercrank? |
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,539
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This, and just do it 3.8.
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1974 914 Bumble Bee 2009 Outback XT 2008 Cayman S shop test Mule 1996 WRX V-limited 450/1000 |
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Registered User
Join Date: Oct 2014
Posts: 614
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soooo nice, want to touch the hiney...
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Registered
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Jeff Gamroth at Rothsport or Steve Wiener from Rennsport Systems out of Portland. Those guys are magicians.
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Registered User
Join Date: Dec 2014
Posts: 989
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Ive been digging into this. Basically a 4.0 is a motor with a bore of 102.7mm ( LN Nickies, I betcha ) and a stroke of 80.4OR it means 104mm bore and 78.4 stroke. This means either a GT3 crankshaft or a custom crankshaft. I am pretty sure you'd also have to use a non-stock oil pump, and you'd have to tweak the rods a bit, and I bet the piston-to-valve clearance will probably require some piston-crown machining.
So, $6K for the pistons and cylinders, $4.5K for the new crank, $1200 for the new oil pump, $1200 for the rods, oh, yeah, gotta twin-plug it to run 11.5:1 compression, so that means EFI and an EMS, which is open-ended but you can spend a LOT of money on that. Then there's induction. You want Velocity stacks or that beautiful big-bore plenum? The options are endless and astronomically priced ![]() If you just want to boost your displacement, you can swap your pistons an cylinders for a set of Nickies in any size from 100m bore ( stock ) to 106mm, which brings your displacement to a touch over 4.0. Call LN Engineering and see what their tech advisors have to say. They'd be the ones who can say 'for that size, you need twin-plugging', or, 'here's the biggest displacement you can go and still keep the rest of your motor stock'. |
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Registered
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Road & Track lists the bore at 102 mm and the stroke at 80.4 mm for a total of 3940 cc.
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Registered User
Join Date: Dec 2014
Posts: 989
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so anything even close is considered 4.0 then?
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El Duderino
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Isn't a 964 motor already twin plugged?
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There are those who call me... Tim '83 911 SC 3.0 coupe (NA) You can't buy happiness, but you can buy car parts which is kind of the same thing. |
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Fastest Hunk of Junk
Join Date: Jun 2014
Location: ATX
Posts: 669
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Well Singer has a few engine options, could it be that R&T car was a 3.9? If not, a surprising number of tuners and OEMs round up rather generously on engine displacement.
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-Brent |
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Bandwidth AbUser
Join Date: Nov 2001
Location: SoCal
Posts: 29,522
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Jim R. |
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El Duderino
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Good. For a minute I was worried that I had started drinking early.
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There are those who call me... Tim '83 911 SC 3.0 coupe (NA) You can't buy happiness, but you can buy car parts which is kind of the same thing. |
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Registered User
Join Date: Dec 2014
Posts: 989
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No, it was me in his cups. I was on a roll, what the hell.
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abides.
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If you're really ambitious, there are 82 and even 84mm cranks out there. Go big or go home, right?
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Graham 1984 Carrera Targa |
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