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Registered
Join Date: Sep 2015
Location: Costa Rica and Pennsylvania U.S.
Posts: 3,301
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3.0 rsr
Hi,I am sorry for the confusion.There were no 2.7 twinplug RS engines.Building a 2.7 RS to a 2.8 Twinplug was a popular build with the mechanical injection.An engine serial number would clarify this question.Fred
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03-10-2017, 02:50 AM
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Quote:
Bernard
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911heaven |
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03-10-2017, 05:16 AM
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Join Date: Apr 2005
Location: outta here
Posts: 52,952
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Bernie,
An RS engine would have a type number of 911/83. An RSR would have been a 911/72, 911/73 or 911/74. That's the first thing I'd check. An RSR motor would have some external differences to an RS. I would look for these things: A cast magnesium housing for the racing oil filter assembly where the engine-mounted oil cooler would have been on an RS. Sand cast magnesium chain covers with a provision for central oiling for the camshafts. Different injection stacks, with either a higher position for the throttle butterflies or slides instead of butterflies. A different injection pump. Google a picture of an RSR pump to see the differences. If you see an aluminum crankcase, instead of a magnesium one, get a casting number off of it. Detailed photos would always help, when/if you can get them. If it's an RS engine that has been twin-plugged, that would imply that it's internally modified, as there's no reason to do that to a stock RS engine with its low compression ratio. If it's been built as a 2.8, most likely they will not have used the correct RSR cylinder heads, so it's a bit of a bastard engine. All of this affects the value of an RS engine, if it turns out to be one of those. JR |
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03-10-2017, 05:49 AM
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Wow JR! What a trove of pertinant info that I was desperate for. How long did it take you to dig that up? I don't know how I can repay you for this, if I can I will. As said, this may take time, or not. It may come to nothing , or not.
I will need time to purchase this motor if possible. It is possible I believe, or I woudn't be going on about it. I sure appreciate all the member's feedback on this one. If I get any new info, I will post it Bernard
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911heaven |
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03-11-2017, 01:06 AM
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gearhead
Join Date: Nov 2007
Location: Loverland, CO
Posts: 23,518
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Did you get my pm the other day?
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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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03-11-2017, 05:39 AM
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Hi Matt,
I didid't sorry. Truthfully, I never check PM because no one ever sends any. I think your message was no. 17 and this goes back to 2007 maybe? I did take a 4 year vacation from the forum after first joining. Not to labor it. I got it Matt. I will get back to you shortly. Best, Bernard
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911heaven |
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03-12-2017, 01:50 AM
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Registered
Join Date: Nov 2004
Location: London UK
Posts: 182
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Quote:
Fully rebuilt genuine 1973 2.7 RS engine (a genuine 663 stamping, there are plenty of fakes around) sold end of last year for £150,000 ($183,000). Chassis was badly damaged scrapped in the 80's. It had just had a £25,000 engine rebuild. That's around 1/3 of a nice RS touring. |
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03-13-2017, 05:51 AM
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Great information! I'm going to take that 1/3 ratio to heart, but that means I have to be a lot more cashed up to get it too right? We'll see. It will take much more time before I can even take a swing at it, due to various constraints time and otherwise. I will do my best, but it won't happen overnight. Wish me luck as Matt Monson did. I think I will need it. Best, Bernard
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911heaven |
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03-18-2017, 04:12 AM
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