Home  
Site Partners: SpotterGuides Veloce Books  
Related Sites: Classic Cars Monthly Your Link Here  

Go Back   TenTenths Motorsport Forum > Historic Racing & Motorsport History > Historic Racing Today

Reply
 
Thread Tools Display Modes
Old 7 Jun 2007, 20:56 (Ref:1931705)   #1
abrussich
Rookie
 
Join Date: Jun 2007
United States
Houston, Texas
Posts: 17
abrussich should be qualifying in the top 10 on the grid
Set up specs for Lotus Type 69

Greetings all, new to the site and am hoping to get a bit of information on the proper set up and specifications for a 1972 Lotus Type 69.
The car belongs to my team mate and we are trying to determine the proper set up. Everything from tire pressures to jet sizes.
Unfortunately the car only came with an abbreviated race history and no useful information.
Any assistance or reference would be greatly appreciated.

Thanks,

Al B.
Team L.O.S.T.
Houston, Tx.
abrussich is offline  
Quote
Old 8 Jun 2007, 14:15 (Ref:1932323)   #2
James Murray
Racer
 
Join Date: Mar 2004
Location:
uk
Posts: 397
James Murray should be qualifying in the top 10 on the grid
What model is it? FF/F3/F2/Atlantic?
James Murray is offline  
Quote
Old 11 Jun 2007, 21:55 (Ref:1934441)   #3
abrussich
Rookie
 
Join Date: Jun 2007
United States
Houston, Texas
Posts: 17
abrussich should be qualifying in the top 10 on the grid
Looking at the photos that came with the car's history it would appear that the car ran in Formula Atlantic.
abrussich is offline  
Quote
Old 13 Jun 2007, 15:37 (Ref:1936022)   #4
PeterMorley
Veteran
 
Join Date: Sep 2003
United Kingdom
Belgium
Posts: 952
PeterMorley should be qualifying in the top 5 on the gridPeterMorley should be qualifying in the top 5 on the grid
Richard Spelberg, Lotus-Books sold a book of Lotus 69 specifications:

Lotus 69 F2, F3, FF. Lotus Racing 1971. Clean Reprint, many contemporary photos and data sheets from my large collection. English language. Limited
edition. $ 54,95 - £ 29,95

Sounds like that is what you are after, unfortunately Richard died recently so you can't get a copy at present.

Some of the original specifications won't be valid - tyre pressures for example (with earlier cars on Dunlop L & M section tyres the pressures used now can be about half what they were originally).

Suspension geometry could be slightly different to original as well, since the current tyres will be different, that can also mean different spring rates etc.

Jet sizes will only be a starting point, if you know which engine you have there are various Cosworth specification sheets that give basic settings for Lotus twin-cams and Cosworth BD engines.

It's probably better to find someone running a similar car (preferably nearer the front of the grid than the back!) with the same engine & tyres and ask what settings they use - most people will be happy to give you the basic information.
PeterMorley is offline  
Quote
Old 13 Jun 2007, 20:03 (Ref:1936262)   #5
allenbrown
OldRacingCars.com
Veteran
 
allenbrown's Avatar
 
Join Date: Dec 1999
Location:
Farnborough, Hampshire, England
Posts: 3,942
allenbrown should be qualifying in the top 10 on the gridallenbrown should be qualifying in the top 10 on the grid
Lots of different Lotus models were called 69s: the space-frame 1970 F2 cars, the 1971 monocoque F2 car, the 1971 spaceframe Formula B car, the 1971 spaceframe F3 car and even the Formula Ford.

Is it a spaceframe or a monocoque? Can you tell us any history and then we may be able to narrow it down. Who ran it in Atlantic?
allenbrown is offline  
Quote
Old 14 Jun 2007, 08:06 (Ref:1936669)   #6
James Murray
Racer
 
Join Date: Mar 2004
Location:
uk
Posts: 397
James Murray should be qualifying in the top 10 on the grid
Allen

All the f2 cars in 70/71 were monocoque no? I didnt think any spaceframe cars ran in F2?
James Murray is offline  
Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Lotus 59 & 69 Chris Townsend The Chassis History Archive 100 24 Sep 2022 21:21
Wings (aerodynamic type, not the feathered type) RobC Racing Technology 2 19 Nov 2005 23:28
Formula Vauxhall/Opel Lotus specs MikeBz Club Level Single Seaters 4 27 Oct 2004 15:37
69 F3 Tecno playing up! Jenny Racing Technology 10 9 May 2002 08:24


All times are GMT. The time now is 23:27.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Original Website Copyright © 1998-2003 Craig Antil. All Rights Reserved.
Ten-Tenths Motorsport Forums Copyright © 2004-2021 Royalridge Computing. All Rights Reserved.
Ten-Tenths Motorsport Forums Copyright © 2021-2022 Grant MacDonald. All Rights Reserved.