[Rovernet] 3.5 to 3.9?

[GeffMcCarthy]

Thanks, Dermot.  I also have read that the SD1 breathing is restricted
severely.  A Vitesse twin plenum was advertised a few months back, and sold
for £800!  I plan to investigate throttle body injection on an Edelbrock
manifold, or similar. 

 

AvMedSafe

Geoffrey W. McCarthy MD MBA DipAvMed

677 NW Melinda Ave Portland OR USA 97210

503-241-8468(h) 503-799-3809 (mobile)

 

-----Original Message-----
From: Rovernet [mailto:rovernet-bounces at rovernet.org] On Behalf Of Dermot
Harvey via Rovernet
Sent: Monday, March 07, 2016 10:59 AM
To: Rovernet <rovernet at rovernet.org>
Cc: Dermot Harvey <roverman2 at verizon.net>
Subject: Re: [Rovernet] 3.5 to 3.9?

 

Hi Geoffrey,

 

I think you would be better off with one of the larger iterations of the
Rover V8. such as the 3.9 or 4.2 Liter.  I have both engines used in stock
if you are interested.

Alternately, you could have your present motor upgraded in power by using
higher compression pistons, a more radical camshaft and improvements to your
Fuel Injection mapping. This is what I did with my SD1 when I rebuilt the
motor some years ago. The car is now no slouch and is an excellent Grand
Touring car for fast longer journeys. Still prefer my 1971 2000TC for
running around the County.

 

Best,

 

Dermot Harvey

Spectral Kinetics

 

 

 

> On Feb 29, 2016, at 6:46 PM, Brian Thornhill via Rovernet <
<mailto:rovernet at rovernet.org> rovernet at rovernet.org> wrote:

> 

> Being a Land Rover tech for 17 years and working with these motors for
many years I am not a fan of boring them as you tend to break the seal loose
between the sleeve and the block I have sourced a few good 3.9 and 4.6
blocks for guys with TR8's they work well if you ant to stay with that block
contact The Wedge Shop they can help you.

> 

> Please excuse errors and format this email sent from iPhone

> 

> 

>> On Feb 29, 2016, at 3:21 PM, GeffMcCarthy via Rovernet <
<mailto:rovernet at rovernet.org> rovernet at rovernet.org> wrote:

>> 

>> I am still looking for more thrust for my 1970 3500S and 1980SD1.  Is 

>> it feasible, and reasonably priced, to bore the 3.5 to the 3.9? I 

>> understand the crankshaft remains the same.

>> 

>> 

>> 

>> AvMedSafe

>> 

>> Geoffrey W. McCarthy MD MBA DipAvMed

>> 

>> 677 NW Melinda Ave Portland OR USA 97210

>> 

>> 503-241-8468(h) 503-799-3809 (mobile)

>> 

>> 

>> 

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