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Saw this today at facebook


BusaNostra

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The Seven S4 was at the British Motoring Conclave last September. Its been off and on CL for a few months. IMHO white is not a good color on an S4. It looked well done under the bonnet in the short time I had to look at it. That BDR engine alone is worth a good chunk of the asking price.

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Nothing can fix you. :D That's OK, we like you the way you are.

 

I used to like white wheels on cars and I like and have owned many white cars. It just doesn't work for me on this particular car.

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Okay, AndyB, that works well on your car. But, as humor abounds on this forum, your car (and you) now beg a new nickname: Snowhite and the '7' Drawf......of course, if you're an extremely tall gent; Snowhite and The Huntsman. :D

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Okay, AndyB, that works well on your car. But, as humor abounds on this forum, your car (and you) now beg a new nickname: Snowhite and the '7' Drawf......of course, if you're an extremely tall gent; Snowhite and The Huntsman. :D

 

No I was built for a Seven being only 5'6" with size eights so the humour is fine. :)

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Skip is right about the value of the BDR engine. They seem to command $15+K all by themselves. Someone here w/a X-flow could buy this, swap out the engines and sell the less powerful S4 for $19K?

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This sounds like a great deal for someone; some hopefully useful insights for the prospective buyer are included below.

I just had the BDA in my S3 Caterham rebuilt, taking it from BDA spec (~150bhp) to BDR+ (~190bhp) spec. The BDA was a nice 1600cc motor but, at the standard cranks 6400rpm redline, wasn't that much quicker than the bomb-proof 1700cc (244 Kent cam) crossflow that preceded it.

The rebuilt BDR+ is, to put it mildly hugely entertaining. I haven't put very many miles on the rebuild but a reasonable number of them have been sideways and so far its justifying the ~$6000+ parts bill that was required for the ~40hp hike (Pretty much the only parts that weren't replaced were the cams, followers and the head castings).

BD-series lumps make great power if you can make use of the improved breathing that is available well above 6000rpm, and IMO to do that reliably requires steel internals.

My rebuild could have resulted higher top end power figure without very much more cost but the rebuild brief was that it had to be drivable on the street with pump gas, run the existing 45DHLA induction, reliably produce 190-200bhp @ ~8000rpm, be capable of being buzzed up to 9000rpm on the track and not require divorce-inducing annual rebuilds.

The S4 BDR that is on sale sounds like a very good price but don’t assume all BDs are born equal. If it's an ex formula Atlantic engine it would have been initially limited to 1600cc, some of the early blocks were only marginally thick enough to reliably accept the 83.5mm overbore to 1700cc so be prepared to ask about the engine internals and receipts, or brace yourself for a potentially expensive upgrade if you want a 8000+ rpm soundtrack and care about using 40 year old technology to keep up with the Zetecs and Duratecs at track days.

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Okay, AndyB, that works well on your car. But, as humor abounds on this forum, your car (and you) now beg a new nickname: Snowhite and the '7' Drawf......of course, if you're an extremely tall gent; Snowhite and The Huntsman. :D

 

Aaaarrggggg....... :rofl:

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