My Baffling Sump

[SPGTi 2]

I am looking to baffle a 8v tin sump to go on my new 16v engine build. I have used a trapdoor panel out of a 306 something that used a tin sump but have been looking to make a baffle plate to bolt to the oil pump like the 306 GTi6. My only concern is that as there is no trapdoor it will not let oil back quickly enough. But then thinking about it as it is quite low will this really be a problem ? I also have the baffle on the other side to stop oil dissappearing quickly in the other direction.

 

Here are a few photos, let me have opinions, theories as I really need to get the sump on.

 

 

 

cheers

 

Steve

[philfingers 5]

I reckon if you're not going to put a trap door in it then may aswell leave it off. That said the Mi16 and GTi6 have baffle plates on the pump with no trapdoor. It's so low as to be irelevant I think. Saying that I spent ages trying to do a crossflow one for my westfield once and ended still surging. So i bought a chamberlin one for it. .. . . .

Personally with the '6' head on the Mi bottom end I would have thought something along the lines of a std Gti6 one would be ok anyway

[mmt 15]

I looks like all you do is creating smaller space around the pickup. The oill spill over to the next oil room and never return to the pump. I think you are creating surge instead of avoiding it.

 

Go to E-bay

[SPGTi 2]

I looks like all you do is creating smaller space around the pickup. The oill spill over to the next oil room and never return to the pump. I think you are creating surge instead of avoiding it.

 

Go to E-bay

 

Remember the black plastic plate in the last 3 photos has a trapdoor to return the oil to the pump, it is the smaller plate on th oil pump that I am undecided on.

The ebay egbox type ones are just plates with no trapdoor returns.

 

Steve

[C_W 3 1 Cars]

The oil pump baffle plate can be bought from Peugoet for a few pounds. Part no.s will be on old threads I think. A trap door isn't essential, my baffle consists of an oil pump baffle, a baffle across the middle (sat on the mi16 alloy sump vanes) and also a top plate that covers the other half side from the pump. It still surges slightly on most circuits but nothing like as bad as without.

[philfingers 5]

Steve, are you going to fit the GTi6 windage tray? Sorry, can't remember

[unariciflocos 49 1 Cars]

-Peugeot xu10j4rs oil pump baffle plate PN 1047 10

-Peugeot xu10j4rs windage tray PN 1047 17

 

Will these fit my Mi16 with an 8v tin sump?

[SPGTi 2]

The oil pump baffle plate can be bought from Peugoet for a few pounds. Part no.s will be on old threads I think. A trap door isn't essential, my baffle consists of an oil pump baffle, a baffle across the middle (sat on the mi16 alloy sump vanes) and also a top plate that covers the other half side from the pump. It still surges slightly on most circuits but nothing like as bad as without.

 

The oil pump baffle (any of them) does not fit the 8v tin sump properly the shape leaves massive gaps, that is why I am looing to make one that fits properly, so it actually does something.

How did you make the top plate and where exactly does it fit ?

 

Phil,

No I wasn't going to use the windage tray. I may cobble up a top plate with a bit more info from C_W.

 

cheers

 

Steve

[C_W 3 1 Cars]

Ah right, I was under the impression it will fit perfeclt on the 8v sump since it's smooth and flat. With the alloy 1.9 Mi16 sump with internal vanes I had to grind them down so the oil pump baffle (the part no. quoted above) would fit. I think it if mostly fills the sump lime then it should have some effect by slowing the movement of oil down.

 

My "top plate" is kind of like a windage tray I suppose but it's propbably too low to do the same job. I did buy a windage tray but never got round to fitting it. My sump basically has a piece of alloy cover more or less the whole top left half of it (flush with the gasket line) with a bit of a gap at the "raised"gearbox end for oil to flow down. I'm not surely how effective this is but my engine has done a fair few trackdays without issues, and my current setup is better (according the factory pressure gauge) than the Peugeot Sport complex baffle setup.

[24seven 104]

Instead of modifying an 8v sump, would i not be more effective to just go for an XU10 trapdoor sump and use the oil pump baffle to suit? That's my intention anyway. When I rebuild mine I've got the XU10 sump and pump to go in but I want to keep the stiffening space that the Mi16 uses so need to extend the oil pickup. the extra capacity (around 1.2L I believe) should help minimise the effects of surge as well.

[unariciflocos 49 1 Cars]

Would anyone care to comment on the effectiveness of these two? Maybe their creators are around to share more?

[philfingers 5]

Instead of modifying an 8v sump, would i not be more effective to just go for an XU10 trapdoor sump and use the oil pump baffle to suit? That's my intention anyway. When I rebuild mine I've got the XU10 sump and pump to go in but I want to keep the stiffening space that the Mi16 uses so need to extend the oil pickup. the extra capacity (around 1.2L I believe) should help minimise the effects of surge as well.

I've done this on mine ( http://forum.205gtidrivers.com/index.php?showtopic=100177 ) but I've needed to space the front of the gravel guard down 30mm, it's sits very low. Ok for a track car but not ok for rallying really! It works very well tho. I have a mechanical guage and even with oil level on lin it doesn't surge on the road

[SPGTi 2]

Instead of modifying an 8v sump, would i not be more effective to just go for an XU10 trapdoor sump and use the oil pump baffle to suit? That's my intention anyway. When I rebuild mine I've got the XU10 sump and pump to go in but I want to keep the stiffening space that the Mi16 uses so need to extend the oil pickup. the extra capacity (around 1.2L I believe) should help minimise the effects of surge as well.

 

As Phil has said this method lowers the sump quite a bit. Personally for rallying I prefer tin sumps as they bend whereas alloy ones tend to crack. I know running a sump guard should stop this but mines has taken some big hits and they do bend.