gingerprince
|
| posted on 7/9/08 at 01:15 PM |
|
|
Sump Guard
After my ballache caused by catching my sump I want to make a sump guard. I'll lose a couple more mm clearance but at least my car will still
work if I bottom out!
So, chequerplate directly under the sump and I want a "ramp" in front of it so if I catch anything it'll be a glancing blow rather than
full frontal. Kinda like this: -
 
Sump Guard
But, will a ramp like that have any noticeable aero effect, like lightening the frontend and causing understeer at the sort of speeds these cars do?
|
|
|
|
|
Guinness
|
| posted on 7/9/08 at 01:31 PM |
|
|
I'd be very wary of such a design. Jeff J (of the NE7ER's) had a similar sump guard on his car when it was xflow powa'd!
He jumped it over a yump, landed heavily, checked his oil gauge and it showed pressure was OK, so he kept going. 
Then the engine seized. 
Turned out the sump guard had collapsed under the weight of the car, squished the sump pan into the oil pickup. The pump was still pressurising the
oil it had, hence the gauge showing pressure. But once what was in the filter / pump / galleries was used up, no more engine 
I'd recommend a pair of timber ski's to be honest. Use hardwood if you can, with a sloping front end, fixed to the chassis rails either
side of the engine. If you crest a hill or kerb they should slide, sacrificing a little material as you go.
Just my 2p worth.
Mike
|
|
|
The Baron
|
| posted on 7/9/08 at 01:35 PM |
|
|
I'm knocking up something very similar,
Cheers,
B
|
|
|
coozer
|
| posted on 7/9/08 at 01:37 PM |
|
|
Don't forget the cooling affect that will be compromised...
1972 V8 Jago
1980 Z750
|
|
|
hobbsy
|
| posted on 7/9/08 at 01:42 PM |
|
|
I need to sort something similar but its fixing it rigidly thats causing me a bit of a headache. Needs to be held on pretty well else first blow and
it will get ripped off etc.
|
|
|
gingerprince
|
| posted on 7/9/08 at 01:48 PM |
|
|
I don't mind it being ripped off, so long as the sump stays where it is. My issue was the sump took a direct-frontal which caused all the
issues with engine moving etc.
Like the idea of wood - nice and light and will leave F1 style marks on the road if I bottom out  I think it'd have to be too thick and
sacrifice too much precious ground clearance to be useful though. Unless just the "ramp" bit is wood and then chequerplate under the sump
itself?
|
|
|
gingerprince
|
| posted on 7/9/08 at 01:51 PM |
|
|
quote:
Originally posted by coozer
Don't forget the cooling affect that will be compromised...
I'd be looking at it being width of the sump (about a foot, mounted to the chassis rails with horizontal box-section) rather than full width to
the rails so would hope cooling wouldn't be so bad.
|
|
|
Humbug
|
| posted on 7/9/08 at 05:57 PM |
|
|
I put a guard on my sump. Originally it was more or less on the sump, but after advice on here I spaced it away from the sump a bit by recessing the
bolt heads to minimise the possible damage from catching the bolts on something (Medium).JPG)
|
|
|
MikeLR
|
| posted on 7/9/08 at 08:19 PM |
|
|
Paul (PJAvon) has modified the front of his sump, perhaps he will post photo or explain what he has done.
Mike
|
|
|
gingerprince
|
| posted on 8/9/08 at 12:54 PM |
|
|
quote:
Originally posted by Humbug
I put a guard on my sump. Originally it was more or less on the sump, but after advice on here I spaced it away from the sump a bit by recessing the
bolt heads to minimise the possible damage from catching the bolts on something
The problem with yours though is that there's still a flat edge at the front, so it wouldn't protect me from what's already happened
once.
|
|
|
nz_climber
|
| posted on 9/9/08 at 02:58 AM |
|
|
Hi there, I plan on doing something similar to the picture below, except this is protecting the bottom of the bell housing - lowest point because of
the dry sump.
http://aarons7.wordpress.com
|
|
|
Dave Bailey
|
| posted on 9/9/08 at 04:23 AM |
|
|
I like the look of that.... What material is it?
|
|
|
martyn_16v
|
| posted on 9/9/08 at 07:44 AM |
|
|
quote:
Originally posted by Guinness
He jumped it over a yump, landed heavily, checked his oil gauge and it showed pressure was OK, so he kept going.
Then the engine seized.
Turned out the sump guard had collapsed under the weight of the car, squished the sump pan into the oil pickup. The pump was still pressurising the
oil it had, hence the gauge showing pressure. But once what was in the filter / pump / galleries was used up, no more engine
But if he didn't have one surely the car would have just landed on the sump instead, with exactly the same end result (one dead engine)? I
don't think the car has suffered in any way from having one fitted, it's just failed slightly differently.
|
|
|
nz_climber
|
| posted on 10/9/08 at 08:43 AM |
|
|
quote:
Originally posted by Dave Bailey
I like the look of that.... What material is it?
Not sure, just aluminum sheet, Probably 3-5mm
Just helps smooth out the underneath so any contact is a just a glancing blow.
http://aarons7.wordpress.com
|
|
|
