Marcos Maniacs

First off, there's only 1 LM600 road car in existence. It was built 
to satisfy the FIA that the LM600 race car was a bona-fide GT and not 
a one-off race special. Factory testers reported, even undeveloped 
(all the return edges on the car were razor sharp!), that it'd exceed 
170MPH and talked of a "developing it properly if someone comes along 
with £100,000". The car was, to my knowledge, last seen with Eurotech 
(Cor Euser's outfit) in Holland. There are some pictures of it 
somewhere on my website, with Dutch trade plates over its English 
plates.

Secondly, the pre-Mantula coupe is often described as having a high-
nose (there being no front spoiler), but looking at Jeff's photos his 
car does look unusually high. I'd expect this to be solved by 
lowering the setting of the spring seat on the shocks. However, it's 
worth considering WHY this has happened. It could be a case of too 
long springs, but equally (or maybe more) likely it's due to the car 
dragging its sump on a lower setting (My sump's been welded 3 times 
now!). So (daft as it may sound), it may well be worth raising the 
rear suspension (perhaps not to match, but 50% down on the front, 50% 
up on the front sort of thing), unless you live in area with pool 
table smooth roads :^)

Cheers,

Mark

Hi guys,

Mark could have a point there regarding the raising of the rear, which I
wouldn't recommend unless it's unnaturally low because it would effect the
handling, but I have another slant on the problem. Believe it or not but the
component of my 3 litre Volvo which most often comes in contact with the
road surface is the bottom of the clutch slave cylinder. In fact it got
ripped off the bell housing 2 years ago and I had to remove the engine and
transmission in order to detach the bell housing, which is made of aluminum,
and have it welded properly. I've had my oil sump welded a few times and the
last time it happened, I had a fairly substantial skid plate attached to
prevent a recurrence. I'm currently working on developing similar protection
for my clutch slave cylinder. 

However, in my case, the problems of grounding are probably more to do with
putting Michelin 185/70 13 tires on the car many years ago, because their
diameter is at least an inch less than the original Avons. Not only did it
lower the car but it also causes my speedometer to over-read. I've been
intending on switching to 14 inch rims with lower profile tires that match
the diameter of the originals and I'm hoping to do it next Spring. I just
can't make my mind up about the rims. Does anyone have a suggestion for rims
that would compliment the car. I want something elegant that's not flashy.
Anyway, tire size is another component of ride height. Something to think
about.

Regards,

Paul Dransfield
3 litre Volvo

-----Original Message-----
From: Mark Saxby [mailto:Mark.Saxby@WhiteCross.com]
Sent: Friday, November 09, 2001 4:56 AM
To: MarcosManiacs@yahoogroups.com
Subject: [MarcosManiacs] LM600 and hi-nose



First off, there's only 1 LM600 road car in existence. It was built 
to satisfy the FIA that the LM600 race car was a bona-fide GT and not 
a one-off race special. Factory testers reported, even undeveloped 
(all the return edges on the car were razor sharp!), that it'd exceed 
170MPH and talked of a "developing it properly if someone comes along 
with £100,000". The car was, to my knowledge, last seen with Eurotech 
(Cor Euser's outfit) in Holland. There are some pictures of it 
somewhere on my website, with Dutch trade plates over its English 
plates.

Secondly, the pre-Mantula coupe is often described as having a high-
nose (there being no front spoiler), but looking at Jeff's photos his 
car does look unusually high. I'd expect this to be solved by 
lowering the setting of the spring seat on the shocks. However, it's 
worth considering WHY this has happened. It could be a case of too 
long springs, but equally (or maybe more) likely it's due to the car 
dragging its sump on a lower setting (My sump's been welded 3 times 
now!). So (daft as it may sound), it may well be worth raising the 
rear suspension (perhaps not to match, but 50% down on the front, 50% 
up on the front sort of thing), unless you live in area with pool 
table smooth roads :^)

Cheers,

Mark


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Hi Guys,
One thing to consider if you are thinking about putting 14 inch 
wheels on your cars to replace the 13 inch wheels, the 14 inch 
wheel tire combination will be heavier than the 13 inch version 
which will also have an adverse affect on the handling due to more 
unsprung weight. Paul is on the right track in looking at tire 
diameter. You would be surprised to see how much it varies between 
various tires from the various companies.

Mike Denman
Marcos 1800
Chassis # 4079

 --- In MarcosManiacs@y..., pauldransfield@i... wrote:
> Hi guys,
> 
> Mark could have a point there regarding the raising of the rear, 
which I
> wouldn't recommend unless it's unnaturally low because it would 
effect the
> handling, but I have another slant on the problem. Believe it or not 
but the
> component of my 3 litre Volvo which most often comes in contact with 
the
> road surface is the bottom of the clutch slave cylinder. In fact it 
got
> ripped off the bell housing 2 years ago and I had to remove the 
engine and
> transmission in order to detach the bell housing, which is made of 
aluminum,
> and have it welded properly. I've had my oil sump welded a few times 
and the
> last time it happened, I had a fairly substantial skid plate 
attached to
> prevent a recurrence. I'm currently working on developing similar 
protection
> for my clutch slave cylinder. 
> 
> However, in my case, the problems of grounding are probably more to 
do with
> putting Michelin 185/70 13 tires on the car many years ago, because 
their
> diameter is at least an inch less than the original Avons. Not only 
did it
> lower the car but it also causes my speedometer to over-read. I've 
been
> intending on switching to 14 inch rims with lower profile tires that 
match
> the diameter of the originals and I'm hoping to do it next Spring. I 
just
> can't make my mind up about the rims. Does anyone have a suggestion 
for rims
> that would compliment the car. I want something elegant that's not 
flashy.
> Anyway, tire size is another component of ride height. Something to 
think
> about.
> 
> Regards,
> 
> Paul Dransfield
> 3 litre Volvo
> 
> -----Original Message-----
> From: Mark Saxby [mailto:Mark.Saxby@W...]
> Sent: Friday, November 09, 2001 4:56 AM
> To: MarcosManiacs@y...
> Subject: [MarcosManiacs] LM600 and hi-nose
> 
> 
> 
> First off, there's only 1 LM600 road car in existence. It was built 
> to satisfy the FIA that the LM600 race car was a bona-fide GT and 
not 
> a one-off race special. Factory testers reported, even undeveloped 
> (all the return edges on the car were razor sharp!), that it'd 
exceed 
> 170MPH and talked of a "developing it properly if someone comes 
along 
> with £100,000". The car was, to my knowledge, last seen with 
Eurotech 
> (Cor Euser's outfit) in Holland. There are some pictures of it 
> somewhere on my website, with Dutch trade plates over its English 
> plates.
> 
> Secondly, the pre-Mantula coupe is often described as having a high-
> nose (there being no front spoiler), but looking at Jeff's photos 
his 
> car does look unusually high. I'd expect this to be solved by 
> lowering the setting of the spring seat on the shocks. However, it's 
> worth considering WHY this has happened. It could be a case of too 
> long springs, but equally (or maybe more) likely it's due to the car 
> dragging its sump on a lower setting (My sump's been welded 3 times 
> now!). So (daft as it may sound), it may well be worth raising the 
> rear suspension (perhaps not to match, but 50% down on the front, 
50% 
> up on the front sort of thing), unless you live in area with pool 
> table smooth roads :^)
> 
> Cheers,
> 
> Mark
> 
> 
> To unsubscribe from this group, send an email to:
> MarcosManiacs-unsubscribe@y...
> 
>  
> 
> Your use of Yahoo! Groups is subject to 
http://docs.yahoo.com/info/terms/

Mike,

Simon Edlin, one of the Toronto area Marcos owners, switched to 14 inch rims
with lower profile tires and he didn't report any adverse effects on the
handling at all. I would appreciate it if you would quantify your comments
because I was under the impression there would be little impact. For sure,
the smaller Michelin 185/70 13s provided better handling than the original
Avons. I would have thought that the characteristics of the tires would have
a greater impact on the handling than the weight differentials of the
rim/tire combination.

Regards,

Paul Dransfield
3 litre Volvo

-----Original Message-----
From: Mike Denman [mailto:marcos18001966@...]
Sent: Friday, November 09, 2001 10:13 AM
To: MarcosManiacs@yahoogroups.com
Subject: [MarcosManiacs] Re: LM600 and hi-nose


Hi Guys,
One thing to consider if you are thinking about putting 14 inch 
wheels on your cars to replace the 13 inch wheels, the 14 inch 
wheel tire combination will be heavier than the 13 inch version 
which will also have an adverse affect on the handling due to more 
unsprung weight. Paul is on the right track in looking at tire 
diameter. You would be surprised to see how much it varies between 
various tires from the various companies.

Mike Denman
Marcos 1800
Chassis # 4079

 --- In MarcosManiacs@y..., pauldransfield@i... wrote:
> Hi guys,
> 
> Mark could have a point there regarding the raising of the rear, 
which I
> wouldn't recommend unless it's unnaturally low because it would 
effect the
> handling, but I have another slant on the problem. Believe it or not 
but the
> component of my 3 litre Volvo which most often comes in contact with 
the
> road surface is the bottom of the clutch slave cylinder. In fact it 
got
> ripped off the bell housing 2 years ago and I had to remove the 
engine and
> transmission in order to detach the bell housing, which is made of 
aluminum,
> and have it welded properly. I've had my oil sump welded a few times 
and the
> last time it happened, I had a fairly substantial skid plate 
attached to
> prevent a recurrence. I'm currently working on developing similar 
protection
> for my clutch slave cylinder. 
> 
> However, in my case, the problems of grounding are probably more to 
do with
> putting Michelin 185/70 13 tires on the car many years ago, because 
their
> diameter is at least an inch less than the original Avons. Not only 
did it
> lower the car but it also causes my speedometer to over-read. I've 
been
> intending on switching to 14 inch rims with lower profile tires that 
match
> the diameter of the originals and I'm hoping to do it next Spring. I 
just
> can't make my mind up about the rims. Does anyone have a suggestion 
for rims
> that would compliment the car. I want something elegant that's not 
flashy.
> Anyway, tire size is another component of ride height. Something to 
think
> about.
> 
> Regards,
> 
> Paul Dransfield
> 3 litre Volvo
> 
> -----Original Message-----
> From: Mark Saxby [mailto:Mark.Saxby@W...]
> Sent: Friday, November 09, 2001 4:56 AM
> To: MarcosManiacs@y...
> Subject: [MarcosManiacs] LM600 and hi-nose
> 
> 
> 
> First off, there's only 1 LM600 road car in existence. It was built 
> to satisfy the FIA that the LM600 race car was a bona-fide GT and 
not 
> a one-off race special. Factory testers reported, even undeveloped 
> (all the return edges on the car were razor sharp!), that it'd 
exceed 
> 170MPH and talked of a "developing it properly if someone comes 
along 
> with £100,000". The car was, to my knowledge, last seen with 
Eurotech 
> (Cor Euser's outfit) in Holland. There are some pictures of it 
> somewhere on my website, with Dutch trade plates over its English 
> plates.
> 
> Secondly, the pre-Mantula coupe is often described as having a high-
> nose (there being no front spoiler), but looking at Jeff's photos 
his 
> car does look unusually high. I'd expect this to be solved by 
> lowering the setting of the spring seat on the shocks. However, it's 
> worth considering WHY this has happened. It could be a case of too 
> long springs, but equally (or maybe more) likely it's due to the car 
> dragging its sump on a lower setting (My sump's been welded 3 times 
> now!). So (daft as it may sound), it may well be worth raising the 
> rear suspension (perhaps not to match, but 50% down on the front, 
50% 
> up on the front sort of thing), unless you live in area with pool 
> table smooth roads :^)
> 
> Cheers,
> 
> Mark
> 
> 
> To unsubscribe from this group, send an email to:
> MarcosManiacs-unsubscribe@y...
> 
>  
> 
> Your use of Yahoo! Groups is subject to 
http://docs.yahoo.com/info/terms/



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Paul
I found going to the 14" wheel is the only way to go! My car came with the 13" cosmics (one cast wheels and avon tires). When I purchased the car in Feb. of 75, the car's front tires look new the backs were missing a lot of rubber in only 7K miles!!! The wheel lug bolt inserts started to crack, about 10 years ago, which I thought was not safe. The lug bolt spacing on the GT6 was only used on a few other cars like the Lotus Europa. So the wheel selection was/is? limited at that time. With a gift form my wife, I went to wire wheels, Dayton build the wheels to fit the offset (at that time custom cost no more the stock order). Their wheels with SS parts are in general much stronger than wheels form England. The handling improved even with the Dayton's increase in swing weight over the cosmics (new tire tech is great). ; If you need any details I could go dig in my files.

Stephen Spalding
5916t

-----Original Message-----
From: pauldransfield@... [mailto:pauldransfield@...]
Sent: Friday, November 09, 2001 6:32 AM
To: MarcosManiacs@yahoogroups.com
Subject: RE: [MarcosManiacs] LM600 and hi-nose

Hi guys,

Mark could have a point there regarding the raising of the rear, which I
wouldn't recommend unless it's unnaturally low because it would effect the
handling, but I have another slant on the problem. Believe it or not but the
component of my 3 litre Volvo which most often comes in contact with the
road surface is the bottom of the clutch slave cylinder. In fact it got
ripped off the bell housing 2 years ago and I had to remove the engine and
transmission in order to detach the bell housing, which is made of aluminum,
and have it welded properly. I've had my oil sump welded a few times and the
last time it happened, I had a fairly substantial skid plate attached to
prevent a recurrence. I'm currently working on developing similar protection
for my clutch slave cylinder.

However, in my case, the problems of grounding are probably more to do with
putting Michelin 185/70 13 tires on the car many years ago, because their
diameter is at least an inch less than the original Avons. Not only did it
lower the car but it also causes my speedometer to over-read. I've been
intending on switching to 14 inch rims with lower profile tires that match
the diameter of the originals and I'm hoping to do it next Spring. I just
can't make my mind up about the rims. Does anyone have a suggestion for rims
that would compliment the car. I want something elegant that's not flashy.
Anyway, tire size is another component of ride height. Something to think
about.

Regards,

Paul Dransfield
3 litre Volvo

-----Original Message-----
From: Mark Saxby [mailto:Mark.Saxby@...]
Sent: Friday, November 09, 2001 4:56 AM
To: MarcosManiacs@yahoogroups.com
Subject: [MarcosManiacs] LM600 and hi-nose

First off, there's only 1 LM600 road car in existence. It was built
to satisfy the FIA that the LM600 race car was a bona-fide GT and not
a one-off race special. Factory testers reported, even undeveloped
(all the return edges on the car were razor sharp!), that it'd exceed
170MPH and talked of a "developing it properly if someone comes along
with £100,000". The car was, to my knowledge, last seen with Eurotech
(Cor Euser's outfit) in Holland. There are some pictures of it
somewhere on my website, with Dutch trade plates over its English
plates.

Secondly, the pre-Mantula coupe is often described as having a high-
nose (there being no front spoiler), but looking at Jeff's photos his
car does look unusually high. I'd expect this to be solved by
lowering the setting of the spring seat on the shocks. However, it's
worth considering WHY this has happened. It could be a case of too
long springs, but equally (or maybe more) likely it's due to the car
dragging its sump on a lower setting (My sump's been welded 3 times
now!). So (daft as it may sound), it may well be worth raising the
rear suspension (perhaps not to match, but 50% down on the front, 50%
up on the front sort of thing), unless you live in area with pool
table smooth roads :^)

Cheers,

Mark

To unsubscribe from this group, send an email to:
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This message (including any attachments) contains confidential information intended for a specific individual and purpose, and is protected by law. If you are not the intended recipient, you should delete this message. Any disclosure, copying, or distribution of this message, or the taking of any action based on it, is strictly prohibited.

Hello Jeff, I decided against the LM600 because it has a Chevy engine. Since 
the LM400 & LM500 have Rover drive train I'll take any of these. The fastest 
I have had one of my SD1's is 157MPH with a very healthy built 3.5 on the 
straight, I didn't build the engine and I paid $1500.00 for the car. 
Everything was dont to this car suspension reworked transmission low end 
speed was very slow. I didn't take names of the cars I races on the freeway. 
My speedometer only goes to 85 but I went by what the driver of the Porsche 
turbo told me. I know I shouldn't have been driving that fast but that car 
was like a disease. I was stopped only once for loud exhaust but I told the 
woman police officer its a V8 and her partner (a man) said nothing after she 
looked back at him. My friend Ken lives on Ocean Blvd. which is just off the 
Long Beach Grand Prix track and he could hear my car over a 1/4 mile from his 
building and when I get below his 17th floor apartment I announce myself with 
a couple of rev's. As I told I didn't build the engine and I finally went out 
due to the adjustable push rods (3) not being tight collapsed and the cam and 
lifters went. This email turned out a bit longer but the car was a blast!

Alvin (TopDogRover)