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Car Forum / Jaguar Cars / October 2005

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XJ40 engine in E-type

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Bret Ludwig - 24 Sep 2005 03:32 GMT
Has that swap ever been done?
David Betts - 24 Sep 2005 07:24 GMT
>Has that swap ever been done?

I doubt it. Why would somebody want to destroy the resale value of an
E-type?

David Betts (davidb@motorsport.org.uk)
The Classic Car Gallery: http://www.ofoto.com/I.jsp?m=17830847103&n=398038677
Al - 24 Sep 2005 15:50 GMT
> >Has that swap ever been done?
>
[quoted text clipped - 3 lines]
> David Betts (davidb@motorsport.org.uk)
> The Classic Car Gallery: http://www.ofoto.com/I.jsp?m=17830847103&n=398038677

What is the resale value of an E-type anyway? What have people been
paying for them? In running condition only, that is.

Al
Buckshop LeFunk - 24 Sep 2005 18:15 GMT
A lot of money. They are up to the $40,000 on Ebay.

============
BuckShot LeFunk
==
1998 LS 400
1999 E320 4-Matic

>>>Has that swap ever been done?
>>
[quoted text clipped - 8 lines]
>
> Al
Bret Ludwig - 24 Sep 2005 22:38 GMT
> A lot of money. They are up to the $40,000 on Ebay.

What Series? What condition? Original or new bodyshell?

In fact, maybe buying a new bodyshell and going from there is a better
option than "restoring".
David Betts - 25 Sep 2005 08:09 GMT
>> A lot of money. They are up to the $40,000 on Ebay.
>
> What Series? What condition? Original or new bodyshell?

Exactly......and where in the world you are?

> In fact, maybe buying a new bodyshell and going from there is a better
>option than "restoring".

The more original a car, the more it is worth. The most valuable -
other than genuine lightweight or low-drag cars with a racing history
- are the original 3.8 series ones, in open or fixed-head form,
closely followed by the 4.2 series ones - which are actually the
better road cars, with nicer seats and an all-synchro gearbox.

The least desirable car is a series two 4.2  2+2 auto. These cars can
still be picked up for silly money.

Later series three V12s can make very good money as well, but these
are nowhere near as desirable as the earlier cars. Big fat
pose-mobiles, basically <g>.

Price range for a well-restored runner in the UK is probably GBP 15 -
30 thou.. With exceptional, original cars, the sky is the limit.

Advice is always to buy the best you can afford. Mid-price cars can
end up costing you far more than high-end cars. Otherwise, buy a
basket case and start from scratch.

David Betts (davidb@motorsport.org.uk)
The Classic Car Gallery: http://www.ofoto.com/I.jsp?m=17830847103&n=398038677
Al - 25 Sep 2005 15:38 GMT
> >> A lot of money. They are up to the $40,000 on Ebay.
> >
[quoted text clipped - 27 lines]
> David Betts (davidb@motorsport.org.uk)
> The Classic Car Gallery: http://www.ofoto.com/I.jsp?m=17830847103&n=398038677

Mine is a '71 Fixed Head Coupe. All original, including paint; yes it's
faded. Hasn't been wet for at least 20 years. I bought it new in '71 and
it was the last one sold in New England as far as I can tell.

It runs well except for the pinging; I even have a thicker head gasket,
but the gas is lousy nowadays. I've been tempted to use aviation gas,
but it's not legal to do that ;-) I've also been told that some speed
shops sell high octane gas. Since I only put about 200 miles on it per
year now, the cost won't be a factor; if I can find some.

Al

Al
David Betts - 26 Sep 2005 07:34 GMT
>Mine is a '71 Fixed Head Coupe. All original, including paint; yes it's
>faded. Hasn't been wet for at least 20 years. I bought it new in '71 and
[quoted text clipped - 5 lines]
>shops sell high octane gas. Since I only put about 200 miles on it per
>year now, the cost won't be a factor; if I can find some.

You need to retard the ignition slightly fow lower octane fuel,
although this may cause the engine to run a little hotter. Best
alternative is to use an octane-boosting additive. Widely available in
the UK from motor accessory stores. No idea about the US. Try
Googling.

David Betts (davidb@motorsport.org.uk)
The Classic Car Gallery: http://www.ofoto.com/I.jsp?m=17830847103&n=398038677
Bret Ludwig - 26 Sep 2005 21:14 GMT
> >Mine is a '71 Fixed Head Coupe. All original, including paint; yes it's
> >faded. Hasn't been wet for at least 20 years. I bought it new in '71 and
[quoted text clipped - 11 lines]
> the UK from motor accessory stores. No idea about the US. Try
> Googling.

Aviation gas is actually not very high octane when measured by the
R+M/2 method. 100LL avgas is about 92. 100/130 is about 98. 115/145 is
almost 103, but no auto engine will burn it straight without severe
lead fouling even at full throttle even with lead scavenging agent.

The trick is to use avgas mixed with unleaded to provide TEL to
increase the octane rating. Becausee avgas has strict RVP
parameters-it's actually closer to "white gas" or JP-4-it is a low
octane base stock with very large amounts of TEL added.

115/145 is only made once a year for Reno air racing. 100/130 is
available in the Pacific Northwest and at a few FBOs with heavy warbird
traffic. 100LL is the only common grade and can be used for this
purpose. About a 4:1 or 5:1 dilution with pump auto gas gives peak
results. Even 10:1 is very bneficial.

It is illegal to put it in a car for on-road use technically. It is
not illegal to buy it for any other use, and usually FBOs will sell you
a gallon or five with no hassles. Some of the bigger ones may give you
grief buit then go elsewhere.

Eventually, leaded avgas will go away because turbines and diesels
will displace most of the recip fleet that is not approved to use auto
fuel.
Al - 27 Sep 2005 14:16 GMT
> > >Mine is a '71 Fixed Head Coupe. All original, including paint; yes it's
> > >faded. Hasn't been wet for at least 20 years. I bought it new in '71 and
[quoted text clipped - 36 lines]
> will displace most of the recip fleet that is not approved to use auto
> fuel.

Good advice. So a mixture of avgas and autogas would do the trick. I was
wondering about the method used for the octance calculation and your
explaination shows that you have to knowledgeable in this area.

I was hesitant to use an octane booster as I was afraid it would not be
compatible with the materials used in the fuel deliviery system of a '71
XKE. I've heard that the ethanol used to produce "cleaner" fuels used to
have an effect on some automobile fuel systems whan it was first
introduced.

Al
David Betts - 28 Sep 2005 07:41 GMT
>I was hesitant to use an octane booster as I was afraid it would not be
>compatible with the materials used in the fuel deliviery system of a '71
>XKE.

Octane boosters are specifically targeted at older cars. Modern cars
don't need them. Why is it that people are always looking for
complicated solutions when easy ones are at hand?

David Betts (davidb@motorsport.org.uk)
The Classic Car Gallery: http://www.ofoto.com/I.jsp?m=17830847103&n=398038677
Bret Ludwig - 08 Oct 2005 22:41 GMT
> > > >Mine is a '71 Fixed Head Coupe. All original, including paint; yes it's
> > > >faded. Hasn't been wet for at least 20 years. I bought it new in '71 and
[quoted text clipped - 46 lines]
> have an effect on some automobile fuel systems whan it was first
> introduced.

If you are going to drive a 1971 automobile maybe it's time the tank
was dropped and sloshed, and all the rubber fuel lines replaced,
anyway. I mean 33 years is a long time.
Steve - 07 Oct 2005 19:45 GMT
>>Has that swap ever been done?
>
[quoted text clipped - 4 lines]
> The Classic Car Gallery:
> http://www.ofoto.com/I.jsp?m=17830847103&n=398038677

Well, it might be the case that you (or me for instance) had been
able to puchase a rust free 1967 Series 1 Coupe that had been
pre-screwed up by a previous owner who had cut pieces up/off to
install an american V8 engine. At least returning the car to "a"
Jaguar engine would be better than the lump of an american V8
there. Also the AJ6/AJ16 engine weighs approx 130lbs less than
the old XK engine plus it puts out a good 50 - 75 HP MORE than
the XK engine.
Signature

Steve who has been looking into this whole "AJ6 engine into E-Type"
pretty seriously for quite some time.

Remove the "NOSPAM" from the E-mail address to send things to me.

David Betts - 10 Oct 2005 07:28 GMT
>>>Has that swap ever been done?
>>
>> I doubt it. Why would somebody want to destroy the resale value of
>> an E-type?

>Well, it might be the case that you (or me for instance) had been
>able to puchase a rust free 1967 Series 1 Coupe that had been
[quoted text clipped - 4 lines]
>the old XK engine plus it puts out a good 50 - 75 HP MORE than
>the XK engine.

Ok, that makes some sense. It makes much more sense to restore it as
an E-type than as some sort of bastardisation, though. Surely one of
the biggest attractions of of the E-type is its direct lineage to the
Le Mans winning D-types. The XK engine won Le Mans five times.

David Betts (davidb@motorsport.org.uk)
The Classic Car Gallery: http://www.ofoto.com/I.jsp?m=17830847103&n=398038677
Bret Ludwig - 10 Oct 2005 07:48 GMT
> >>>Has that swap ever been done?
> >>
[quoted text clipped - 16 lines]
>
> David Betts (davidb@motorsport.org.uk

It wouldn't if Briggs Cunningham had stuck with the real racing engine
in the C-6R...
 
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