Lotus Elan

Oil surge

PostPost by: paros » Tue Sep 26, 2006 5:22 pm

I must confess to be frightened by the idea of foam for all the reasons stated.
For my S4, and complying with FIA regs etc I use a QED wet baffled sump. No problems although I do overfill by half a pint - still misses the crank.
Last weekend at Greek circuit which is very tight in some parts and fastre open corners elsewhere, the car was on pole in front of 911's, GT40, Fords, lafas etc and as we use slicks it was pulling plenty of 'g' and also outbraking the bigger braked cars. No surge or loss of pressure [ when I dared to look ]. Traditionally I would go for dry sumping but now find myself wondering just how much bhp loss there is with a wet sump as it is so easy and cost effective.
My advice to the original question is a baffled sump, problem solved.
Richard
paros
Second Gear
Second Gear
 
Posts: 105
Joined: 06 Nov 2003
Location: WEST WALES

PostPost by: Midlife » Wed Sep 27, 2006 8:14 pm

I would like to baffle my sump (another excuse to use my welder!!), has anyone got a picture or drawing I could use?

(PS thanks for the replies, some interesting points!)

Cheers

Doug
Midlife
Second Gear
Second Gear
 
Posts: 79
Joined: 08 Sep 2006
Location: Essex, England.

PostPost by: hatman » Thu Sep 28, 2006 8:30 am

Richard - didn't you have a letter published in the Club lotus mag a while ago saying that you'd discovered that the oil-surge resulted from under-filling the sump owing to the the dipstick having recessed into its holder?
hatman
Third Gear
Third Gear
 
Posts: 407
Joined: 05 Oct 2004

PostPost by: hatman » Thu Sep 28, 2006 8:30 am

Sorry - duplicated posting.
hatman
Third Gear
Third Gear
 
Posts: 407
Joined: 05 Oct 2004

PostPost by: rgh0 » Thu Sep 28, 2006 8:56 am

Doug

I have posted some photos of the baffling arrangements I use in the pictures section of the Yahoo Elanmods groups. If you want, send me a PM and I can send a more complete set of photos.

regards
Rohan
User avatar
rgh0
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 7515
Joined: 22 Sep 2003
Location: Melbourne, Australia

PostPost by: grat » Thu Oct 05, 2006 6:49 pm

cabc26b wrote: One way keep the heat to a minimum would be to fun alum hardlines with insulators ( aeroquip firesleve ) inside the sills with the sill pannels on and install the tank in the trunk - I don't like the long line runs vs the short ones I have ( have often wondered if leaving the tubes bare and venting the sill would cool the oil ala porsches loop cooler )


Interesting. This thought had crossed my mind though in slightly a different form. I'm planning on running a side intrusion bar tube from the front of the footwell, through the side sill under the corner of the roll loop. I was thinking I could either run the oil tube through that or if I can work out how to seal the side tube, use the tube itself. Time to go do some measuring and thinking...

thanks,
fj..
1969 S4 45/9297
User avatar
grat
Second Gear
Second Gear
 
Posts: 114
Joined: 27 Feb 2004
Location: Allenspark, CO

PostPost by: steveww » Fri Oct 06, 2006 9:27 am

Midlife wrote:I would like to baffle my sump (another excuse to use my welder!!), has anyone got a picture or drawing I could use?

(PS thanks for the replies, some interesting points!)

Cheers

Doug


There are some pictures of the QED baffled sump on my site at http://www.stig.uklinux.net/
User avatar
steveww
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1838
Joined: 18 Sep 2003
Location: Northamptonshire, England
Previous

Total Online:

Users browsing this forum: No registered users and 1 guest