le Mans Classic 2023
-
- websitedesign
- Posts: 3819
- Joined: Wed Feb 08, 2006 11:22 am
- Your interest in the forum: Jup NKD 258, the most widely travelled , raced and rallied Jowett.
- Given Name: Keith
- Contact:
Race 3 analysis.
Trying to estimate effect of humidity and temperature on performance is an art. The engine should be better in cool, humid conditions until you start to get icing on the carbs. The tyres should be better with hot track temperature but all then depends on tyre pressure which we played with during practice settling on, I think, 38 psi. hot as we checked pressure at each pit stop and at end of race or practice.
This is informative showing the build up of speed during the race. Chris's best lap coming at the end of the stint, possibly because the late pit stop gave him space and was not held up by similar perfomance cars. The driver change on Lap 5 added about 1min 30 secs to the Sector 1 time.
This is the most informative chart showing how the late driver change put us on third in Lap 5, but of course dropping down again when we made the change to 9th past the post on lap 6 as faster cars caught up, and way down on lap 7 after the change.
This shows nothing!
43 Jowett Jupiter 1951 TSRC3A H. NAERGER
Best top speed 188.1 on lap 2
second best 185.8 on lap 1
third 183.9 on 4
fourth 182.1 on 3
fifth 175.4 on 5
average for race 183,1
Last edited by Keith Clements on Fri Jul 07, 2023 12:02 pm, edited 1 time in total.
skype = keithaclements ;
-
- websitedesign
- Posts: 3819
- Joined: Wed Feb 08, 2006 11:22 am
- Your interest in the forum: Jup NKD 258, the most widely travelled , raced and rallied Jowett.
- Given Name: Keith
- Contact:
Night Practice analysis
The long gap here was due to fixing the top hose that had come off when Chris was driving. Scott followed on and managed to do a 570 deg spin at Indianapolis when blinded by headlights in the mirror. Mirror was blanked off for night race.
This shows your ideal lap compared to the best lap managed by the drivers.
43 43 Jowett Jupiter 1951 TSRC3A Ideal = 7:52.547 Best = 8:23.492 (54)
skype = keithaclements ;
-
- websitedesign
- Posts: 3819
- Joined: Wed Feb 08, 2006 11:22 am
- Your interest in the forum: Jup NKD 258, the most widely travelled , raced and rallied Jowett.
- Given Name: Keith
- Contact:
Day Practice.
sector 2 48th 2:32.651
sector 3 45th 3:01.497
Comparisons with other cars, particularly those in the same class may show up something useful. Drivers reported ease of passing on corners but lack of top speed on staights. Some aero dynamic changes are required as well as more power at the top end and higher max revs.
skype = keithaclements ;
-
- websitedesign
- Posts: 3819
- Joined: Wed Feb 08, 2006 11:22 am
- Your interest in the forum: Jup NKD 258, the most widely travelled , raced and rallied Jowett.
- Given Name: Keith
- Contact:
Race 1 analysis
Last edited by Keith Clements on Fri Jul 07, 2023 12:03 pm, edited 1 time in total.
skype = keithaclements ;
-
- websitedesign
- Posts: 3819
- Joined: Wed Feb 08, 2006 11:22 am
- Your interest in the forum: Jup NKD 258, the most widely travelled , raced and rallied Jowett.
- Given Name: Keith
- Contact:
-
- websitedesign
- Posts: 3819
- Joined: Wed Feb 08, 2006 11:22 am
- Your interest in the forum: Jup NKD 258, the most widely travelled , raced and rallied Jowett.
- Given Name: Keith
- Contact:
The track in 1950
Compare this to the current track whose image is in a previous post.
skype = keithaclements ;
-
- Posts: 1894
- Joined: Sat Oct 24, 2009 8:45 pm
- Your interest in the forum: Everything Jowett - Restoration Specialist
- Given Name: Chris
- Location: Hampshire. UK
- Contact:
Re: le Mans Classic 2023
Trevor Spero wrote: 'Excellent result especially from a team of aged Jowetters'
Dear Mr Spero, Go wash your mouth out with strong carbolic soap immediately
- I was very much part of this years Le Mans team and would care kindly not to be dumped into the 'Aged Jowetters' bracket just yet !
Dear Mr Spero, Go wash your mouth out with strong carbolic soap immediately


27 Long 4 Tourer Oily Rag
37 Jowett 8 HP - In many parts
52 Javelin Std 'Taxi Livery'
52 Javelin Std Patina project
52 Javelin Std Sports project
52 Jupiter SA - Original car - full restoration project
54 Jupiter SA - project - shortly for sale
37 Jowett 8 HP - In many parts
52 Javelin Std 'Taxi Livery'
52 Javelin Std Patina project
52 Javelin Std Sports project
52 Jupiter SA - Original car - full restoration project
54 Jupiter SA - project - shortly for sale
-
- Posts: 1894
- Joined: Sat Oct 24, 2009 8:45 pm
- Your interest in the forum: Everything Jowett - Restoration Specialist
- Given Name: Chris
- Location: Hampshire. UK
- Contact:
Re: le Mans Classic 2023
Playing with the big boys and winning at it - Chris Bates pilots the Jupiter past the 1952 J2X Allard (all 8 cylinders 5,394 cubic inch of it) to his next target the 1950 Talbot Lago T26 GS (Inline 6 cylinder 4,482 cubic inch) which Chris passes within the next mile

27 Long 4 Tourer Oily Rag
37 Jowett 8 HP - In many parts
52 Javelin Std 'Taxi Livery'
52 Javelin Std Patina project
52 Javelin Std Sports project
52 Jupiter SA - Original car - full restoration project
54 Jupiter SA - project - shortly for sale
37 Jowett 8 HP - In many parts
52 Javelin Std 'Taxi Livery'
52 Javelin Std Patina project
52 Javelin Std Sports project
52 Jupiter SA - Original car - full restoration project
54 Jupiter SA - project - shortly for sale
Who is online
Users browsing this forum: No registered users and 1 guest