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Post by Zed. on May 24, 2020 19:43:34 GMT
anyone fiddled with sumps & baffling? I'm looking at modifying a sump and don't fancy the skidnation offering (especially at the price bofi ask  ) so wonder if anyone has any ideas before I get playing  making a larger version of Mazda's cover is easy (as seen on Mt.net) lengthening / deepening the pick-up pipe to have the gause lower  possibly use a Vauxhall pick-up pipe 'end' as the gause strainer is encased in a metal cone that supposedly stops air being drawn from the side  wondering about trap-doors (like Ford used in the mk1 Escort Mexico / RS1600 & Twincam 'bigwing' sump)  or maybe copy Caterham's Vauxhall XE shallow sump (used a foam pad to fill the area & stop surge) - although this is a bit of an uncertanty with the worry being foam degrading due to heat & oil Rich. |
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Post by wannabe on May 24, 2020 21:04:16 GMT
Random thought - would the internals from a catalytic convertor work in place of foam? Basically bigger 'cells' but same effect, although I'm not sure how they'd degrade when immersed in boiling oil, or whether having microparticles of platinum floating in the oil would be wise...  Or you could probably get some crazy cell structure 3D printed? (I will only claim 10% commission on all sales when the idea takes off  ) |
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Post by dadbif on May 24, 2020 21:33:29 GMT
Not strictly relevant, but I used an Opel manta winged sumop on my Vauxhall’ XE, milled the bottom of and sealed it with a plate then extended the wings to get the capacity.
What other Mazda engines share the same sump shape and could be modified?
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Post by Zed. on May 24, 2020 22:10:11 GMT
I'll consider the raiding of exhaust components as an oil thickener Not strictly relevant, but I used an Opel manta winged sump on my Vauxhall’ XE, milled the bottom of and sealed it with a plate then extended the wings to get the capacity. What other Mazda engines share the same sump shape and could be modified? with the 'XE' I've actually run a manta 1.8 sump with one of the wings cut off & plated (as used to be advised by SBDl, for more room for exhaust manifold primaries ) so they can happliy suvive competition on ~3L of oil interestingly, the manta sump has a 'lip' cast in around the 'well' but nothing else, suppose that stops the oil thats already in there flowing out... so am I overthinking Rich. |
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Post by noobie on May 25, 2020 9:04:00 GMT
If you need a template: forum.miata.net/vb/showthread.php?p=9214299If that plate is enough for this guy's engine to run north of 8000rpm whilst cornering and braking on 15x10 slicks then its probably all any BP needs to avoid oil starvation. You can make one yourself, but the Skidnation basic sump baffle plate is only like 22€? Not what I'd call expensive considering the time you'll spend diy-ing. |
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Post by schercheeroo on May 25, 2020 10:07:05 GMT
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Post by Zed. on May 25, 2020 12:40:34 GMT
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Post by noobie on May 25, 2020 12:50:50 GMT
If you need a template: forum.miata.net/vb/showthread.php?p=9214299If that plate is enough for this guy's engine to run north of 8000rpm whilst cornering and braking on 15x10 slicks then its probably all any BP needs to avoid oil starvation. You can make one yourself, but the Skidnation basic sump baffle plate is only like 22€? Not what I'd call expensive considering the time you'll spend diy-ing. I've seen that template (sorta same as the oe plate I've removed from the sump) as to the skidnation offering, bofi want £94 and shidnation are cheaper (but needs import?)https://bofiracing.co.uk/skidnation-racing-sump-oil-pan-baffle-for-mazda-mx5-na-nb/ bit sharp for me  £94 for the full package, £25 for a simple sump plate that has been verified to cure the oil pressure dip under braking (via oil pressure datalogs on a slick shod aero car). Trap doors etc were considered, but simply not needed. You can over-engineer the plate all you wan't, but its just unneeded weight, additional failure points and time lost. |
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Post by niklas on May 25, 2020 17:27:29 GMT
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khare
Chats A Bit
Posts: 248 
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Post by khare on May 25, 2020 19:19:19 GMT
Interesting. I'm about to put an engine together and it's for a track car, so baffling is a bonus. Looking at the flat baffle as per above, the one that covers the "top", seems easy to make. I actually have a sheet of about 3/4mm steel in the garden, it's got some surface rust but I could polish it off. Think I'm going to give it a go.
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Post by dadbif on May 26, 2020 12:19:54 GMT
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Post by Zed. on May 26, 2020 22:32:27 GMT
will fuel-cell foam handle the heat of engine oil doubt it & thats a shame as I have 2 binbags of assorted baffle-foam from an old rallycar fueltank Rich. |
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Post by niklas on May 27, 2020 14:52:58 GMT
One could probably get away with making the top plate, extending that forward and folding it down not using nitrile ports.
That would be real easy and most likely be enough.
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Post by dadbif on May 27, 2020 17:12:27 GMT
🙁 didn’t see it was for fuel...
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Post by dadbif on May 27, 2020 20:57:43 GMT
Mind you, I would wager that petrol is more likely to degrade foam than oil....
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) so wonder if anyone has any ideas before I get playing 
)
) but maybe viton will win over 
le sigh