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#1
25th February 2012, 09:31 PM
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whos going to be the first to put a LS3 in a 8?
Just been reading up about engines for fun, I have to say I prefer the simpler design of the American pushrod. Plust they sound great
 I would love to put a LS3 with a Tremec 6 speed in my S8. Or at least I would love to see someone else do it. A LS3 is much cheaper than I thought, £4350 from the UK. I guess the real expense would be all the other work to get it into the car. http://www.roadcraftuk.co.uk/index.p...product_id=585 LS3 weighs 200kg, same as 40V V8? Tremec 6 weighs only around 58kg, thats about 100kg less than a Audi auto trans! http://www.ttcautomotive.com/english/products/T-56.asp However, LS3 also has a chain tensioner problem, it brakes. Some people have gone back to LS1 chain damper. http://www.camaro5.com/forums/showpo...&postcount=223 http://www.camaro5.com/forums/showthread.php?t=153162 wohooo! http://www.youtube.com/watch?v=M7-VpUgsZrM 
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#2
26th February 2012, 01:09 AM
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anyone else have no idea what an LS3 is, or is it just me?
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2019 BMW M5 (my daily driver) 2002 Mark's D2 S8 FE 2020 BMW M340d xDrive (Anely's daily driver) 2000 FL D2 4.2 QS - SOLD 2011 
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#3
26th February 2012, 06:03 AM
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No, you are not alone
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2002 Final Edition S8. Ebony black with Silver Grey leather and myrtle wood trim. Current mods: solar sun roof, 20mm rear spacers, 15 mm on front, red brembo callipers, 6k headlights, rear view camera, engine remap, alloy dash dial rings, alloy navi rings, tt/phaeton pedal upgrade, (and custom matching foot rest) dension ipod interface & parrot hands free kit (both fully hidden), av input, tv in motion switched thro' PF switch in blanking plug right of steering column, Audi 'quattro' sill covers, repositioned centre console switches, radio clock, .Planned mods: auto-dimming rear view mirror, dash cam (as steamship's), fit the ski hatch, refit philips drl's (or maybe not - nope, definitely not - horrible botch!).
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#4
26th February 2012, 07:01 AM
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its Basically the GM V8 engine fitted to Cameros, the C5 Corvette and most Holdens from 2008 onwards
 http://www.camaro5.com/forums/wiki.p...specifications
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Confidence is the feeling you have before you know better . . . .  Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange 2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee 20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble Audi A8L D2 4.2 Petrol with LPG - Ebony Black Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior and some other A8's A8L's and Mercs
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#6
26th February 2012, 05:33 PM
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And it's quite a good powerplant, and very common here in the USA. I'd personally drop the coin on an LS7 or LS9 though, they have 505 hp and 630 hp output, respectively, and are unbelievably reliable as well, and they take very well to modification. The LS9 is factory supercharged, and a simple pulley change and tune can get you into the 750 bhp range.
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#7
28th February 2012, 10:10 AM
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I was looking at the LS7 as well, amazing engine. Its a bit more pricey and I couldnt find a readily available source in the UK. I know some guys on here were looking at supercharging the Audi V8, I think they are better of with a LS3 or LS7, LS9 V8, could turn out cheaper and more powerful. Also they have cast iron cylinder sleeves, I'm no engineer but iron sounds better than Alusil coating.
Last edited by Goran; 28th February 2012 at 10:15 AM.
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#8
28th February 2012, 10:34 AM
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Here is a better picture of the offending part in LS3 (and LS7 I beleive). Same as Audi, and pretty much every other manufacturer, they used some sort of nylon, which sometimes brakes at engine temperature.
Its a real shame because there are better materials out there such as Stanyl Diablo (recently selected by Fiat) and Duratron CU60. And here is the thread advising replacement with the LS1 chain dampner. Shame because the LS3 tensioner looks like a better design because its keeping tension on the chain not just preventing vibration and jumping. http://ls1tech.com/forums/generation...work-pics.html If I ever have the money to get a LS3 this is the first part I would change before the engine went in the car. Last edited by Goran; 28th February 2012 at 10:38 AM.
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