Marcos Maniacs group photo

Yahoo Groups archive

Marcos Maniacs

Index last updated: 2026-04-28 23:07 UTC

Thread

Re: racing snafu

Re: racing snafu

2005-01-22 by Meggsief@aol.com

Hey Guys,
                Well I got a call from my mechanic/rules committe contact for 
vintage racing. The rules commitee dosnt know  a lot about the Marcos and I 
am having trouble getting a engine ruling. Now in 1966 (chasis 5006} my car 
came with a 1500cc moter. I have brochure stating that a 1600 was also avail. is 
this true? While I was on the Unoficial Marcos home page  it looked as though 
in '65 ther was an 1800 avail. am I reading this correct? If so are the 
engines interchagable between the two years? I was hopping to be able to race this 
year but having an uncommon car is difficult for the common race official. Any 
help is greatly apreciated.
Hal
#5006

Re: [MarcosManiacs] Re: racing snafu

2005-01-22 by Mike Denman

Hi Hal,
; I have a 1966 Marcos with a 1800 cc engine (chassis #4079).... the engine in the 1800 cc was a Volvo while the smaller engines were Ford. Email me a picture of the engine sub frame and I will compare it to mine and see how difficult or easy the conversion would be (assuming you want to switch to a Volvo engine).
Mike Denman
Show quoted textHide quoted text
----- Original Message -----
Sent: Friday, January 21, 2005 9:05 PM
Subject: [MarcosManiacs] Re: racing snafu

Hey Guys,
Well I got a call from my mechanic/rules committe contact for vintage racing. The rules commitee dosnt know a lot about the Marcos and I am having trouble getting a engine ruling. Now in 1966 (chasis 5006} my car came with a 1500cc moter. I have brochure stating that a 1600 was also avail. is this true? While I was on the Unoficial Marcos home page it looked as though in '65 ther was an 1800 avail. am I reading this correct? If so are the engines interchagable between the two years? I was hopping to be able to race this year but having an uncommon car is difficult for the common race official. Any help is greatly apreciated.
Hal
#5006

Re: [MarcosManiacs] Re: racing snafu

2005-01-22 by Don Lattimer

Hal,
The Marcos book says that in 1967 the 1500cc and the Chris Lawrence tuned 1650cc were superseded by the 1600cc crossflow. I suppose any of the three engines would be OK.
Have you joined the Marcos Enthusiasts forum? They have a racing section and could probably offer some help.
Also you could check with Rory to see what engines were available. Hasn't your car been changed to a V6 and automatic gearbox or is that your other one?
Don
#3m5759
Show quoted textHide quoted text
----- Original Message -----
Sent: Friday, January 21, 2005 9:05 PM
Subject: [MarcosManiacs] Re: racing snafu

Hey Guys,
Well I got a call from my mechanic/rules committe contact for vintage racing. The rules commitee dosnt know a lot about the Marcos and I am having trouble getting a engine ruling. Now in 1966 (chasis 5006} my car came with a 1500cc moter. I have brochure stating that a 1600 was also avail. is this true? While I was on the Unoficial Marcos home page it looked as though in '65 ther was an 1800 avail. am I reading this correct? If so are the engines interchagable between the two years? I was hopping to be able to race this year but having an uncommon car is difficult for the common race official. Any help is greatly apreciated.
Hal
#5006

RE: [MarcosManiacs] Re: racing snafu

2005-01-23 by Garry Diver

Hi Hal,
    I sympathise, as I had to work with a tech commitee with no Marcos 
experience to work with here in the US.

Here is what I found and how we dealt with it.
My experience is based on the 3LV6.
  Firstly , each Vintage organisation has slightly different rules with 
respect to authenticity and race prep. Some require absolute adherance to 
the letter and spirit of period correct preparation while others let you run 
anything as long as your entry check clears the bank.   So, choose the 
organisation which allows you to run the car in whatever trim you decide 
works for you.

Secondly, Ask if you can run the car in 1967 trim. This might bump you up a 
class if you run with a 1600, but do you really care if you can enjoy your 
racing? After all, who would know the difference anyway and no one checks 
Chassis numbers.
I chose to run in a class where the car will be mid pack and competitive but 
not a runaway winner.Some organisations simply bracket the age, ie. 1962 to 
1969, and you can upgrade to 1969 specs as long as it does not give you a 
clear competitive advantage.
Also talk to the tech people abot the fact that you will be running a pre 
crossflow 1600 against TwinCam Lotus Elans and they probably won't object.

Thirdly, Discuss with them the lack of availability of parts and possible 
repacements.For example I replaced the Weber carb. with a Holley 2300 2BBL  
with the same number of chokes. I also replaced the old Zephyr 4 speed with 
a later Ford box as the O/D on the 4 speed is notoriously week under heavy 
use.

Fourthly, Get a tech inspection BEFORE you turn up at your first race 
meeting. I took the car to a meeting before it was completely finished just 
to get a tech inspection. Not suprisingly, some of the things I worried 
about they didn't comment on. However I did leave with a list of relatively 
minor things I needed to change and the comment that it was a really cool 
car and they looked forward to seeing it back. When I arrived for the first 
race the car passed its annual tech with no exceptions.

So the overriding rule is get to know your sanctioning organisation and 
don't be afraid to challenge the rule if you feel it will help in 
reliability and safety. If they are unbending you probably want to run with 
another group.

This is just the tip of the iceberg but give me a call and I can give you a 
lot more background.

Garry Diver

425 442 1851
Show quoted textHide quoted text
>From: Meggsief@...
>Reply-To: MarcosManiacs@yahoogroups.com
>To: MarcosManiacs@yahoogroups.com
>Subject: [MarcosManiacs] Re: racing snafu
>Date: Sat, 22 Jan 2005 00:05:10 EST
>
>Hey Guys,
>                 Well I got a call from my mechanic/rules committe contact 
>for
>vintage racing. The rules commitee dosnt know  a lot about the Marcos and I
>am having trouble getting a engine ruling. Now in 1966 (chasis 5006} my car
>came with a 1500cc moter. I have brochure stating that a 1600 was also 
>avail. is
>this true? While I was on the Unoficial Marcos home page  it looked as 
>though
>in '65 ther was an 1800 avail. am I reading this correct? If so are the
>engines interchagable between the two years? I was hopping to be able to 
>race this
>year but having an uncommon car is difficult for the common race official. 
>Any
>help is greatly apreciated.
>Hal
>#5006

RE: [MarcosManiacs] Re: racing snafu

2005-01-23 by michael hullevad

Hello There!
The Volvo B18 and Volvo gearbox is by far the best choice. The B18 engine can be tuned to 240 BHP and the gearbox can cope with it. Replace the B18 block with a (allso pushrod) B20 and buy a new head/cam from Sweden and You are competing/outrunning all Jag E types and Porsche from before -70.
Marcos greetings
mike

Garry Diver wrote:
Show quoted textHide quoted text
Hi Hal,
I sympathise, as I had to work with a tech commitee with no Marcos
experience to work with here in the US.

Here is what I found and how we dealt with it.
My experience is based on the 3LV6.
Firstly , each Vintage organisation has slightly different rules with
respect to authenticity and race prep. Some require absolute adherance to
the letter and spirit of period correct preparation while others let you run
anything as long as your entry check clears the bank. So, choose the
organisation which allows you to run the car in whatever trim you decide
works for you.

Secondly, Ask if you can run the car in 1967 trim. This might bump you up a
class if you run with a 1600, but do you really care if you can enjoy your
racing? After all, who would know the difference anyway and no one checks
Chassis numbers.
I chose to run in a class where the car will be mid pack and competitive but
not a runaway winner.Some organisations simply bracket the age, ie. 1962 to
1969, and you can upgrade to 1969 specs as long as it does not give you a
clear competitive advantage.
Also talk to the tech people abot the fact that you will be running a pre
crossflow 1600 against TwinCam Lotus Elans and they probably won't object.

Thirdly, Discuss with them the lack of availability of parts and possible
repacements.For example I replaced the Weber carb. with a Holley 2300 2BBL
with the same number of chokes. I also replaced the old Zephyr 4 speed with
a later Ford box as the O/D on the 4 speed is notoriously week under heavy
use.

Fourthly, Get a tech inspection BEFORE you turn up at your first race
meeting. I took the car to a meeting before it was completely finished just
to get a tech inspection. Not suprisingly, some of the things I worried
about they didn't comment on. However I did leave with a list of relatively
minor things I needed to change and the comment that it was a really cool
car and they looked forward to seeing it back. When I arrived for the first
race the car passed its annual tech with no exceptions.

So the overriding rule is get to know your sanctioning organisation and
don't be afraid to challenge the rule if you feel it will help in
reliability and safety. If they are unbending you probably want to run with
another group.

This is just the tip of the iceberg but give me a call and I can give you a
lot more background.

Garry Diver

425 442 1851




>From: Meggsief@...
>Reply-To: MarcosManiacs@yahoogroups.com
>To: MarcosManiacs@yahoogroups.com
>Subject: [MarcosManiacs] Re: racing snafu
>Date: Sat, 22 Jan 2005 00:05:10 EST
>
>Hey Guys,
> Well I got a call from my mechanic/rules committe contact
>for
>vintage racing. The rules commitee dosnt know a lot about the Marcos and I
>am having trouble getting a engine ruling. Now in 1966 (chasis 5006} my car
>came with a 1500cc moter. I have brochure stating that a 1600 was also
>avail. is
>this true? While I was on the Unoficial Marcos home page it looked as
>though
>in '65 ther was an 1800 avail. am I reading this correct? If so are the
>engines interchagable between the two years? I was hopping to be able to
>race this
>year but having an uncommon car is difficult for the common race official.
>Any
>help is greatly apreciated.
>Hal
>#5006


Re: [MarcosManiacs] Re: racing snafu

2005-01-25 by Meggsief@aol.com

everybody,
                Thank you for all your info keep it comming...... I have 
copied each of your responses and have them ready for the next round of talks. If 
I understood correctly the volvo engine and trans. are period correct? As soon 
as I get the capri engine out I will post pics. of the engine compartment.
 Again many thanks for the info!!!!!

Hal
 #5006

Re: [MarcosManiacs] Re: racing snafu

2005-01-25 by michael hullevad

The Marcos GT 1800 was abandoned due to the high price of the Volvo B18.
So it is pre- period. The Volvo engine was the best choise and the tuning is straight forward. Get very dependable 185hp and streetability!

Meggsief@... wrote:
Show quoted textHide quoted text
everybody,
Thank you for all your info keep it comming...... I have copied each of your responses and have them ready for the next round of talks. If I understood correctly the volvo engine and trans. are period correct? As soon as I get the capri engine out I will post pics. of the engine compartment.
Again many thanks for the info!!!!!
Hal
#5006

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.