comp truck sumps

[santaz351]

hi all
got a mate whose building a fj45 comp truck with 350 chev. you guys got any recommendations for which sump to use? any particular brands/types?

Cheers

[Tomo_89]

chev?

[santaz351]

yeh, 350

[DIRTY ROCK STAR]

whats wrong with a standard one?

i run a 304 holden and no sump issues?
i know 350 is different but is there an issue?

[Struth]

A rear pan sump if they exist, this will help prevent the motor from starving of oil when working hard uphill.

Cheers

[bad mudda]

Dry sump setup would be optimal i think, if you dont mind spending $$$

[Big_GQ]

i see more magazine mechanics giving tips here? you have to run a rear hump sump because of front diff punkin hitting have seen commodore used but too close so just sorce a hq high volume sump suit small block there baffeld and cost around $400 high energy is 1 brand.

[Hulksta]

i see more magazine mechanics giving tips here? you have to run a rear hump sump because of front diff punkin hitting have seen commodore used but too close so just sorce a hq high volume sump suit small block there baffeld and cost around $400 high energy is 1 brand.

X2

[DIRTY ROCK STAR]

i see more magazine mechanics giving tips here? you have to run a rear hump sump because of front diff punkin hitting have seen commodore used but too close so just sorce a hq high volume sump suit small block there baffeld and cost around $400 high energy is 1 brand.

wouldnt this depend on the location of his diff and the position of the engine?
if hes building a comp truck its abit hard to say for sure there will be issues isnt it?

[brad-chevlux]

i see more magazine mechanics giving tips here? you have to run a rear hump sump because of front diff punkin hitting have seen commodore used but too close so just sorce a hq high volume sump suit small block there baffeld and cost around $400 high energy is 1 brand.

X2

a real mechanic wouldn't call it a punkin.

[Big_GQ]

well then what would you call it ? because the flat part of the diff housing aint gonna have clearance issuses with upward travel is it,and with most of those v8 and v6 conversion kits they either give you a new sump and pick up or tell you what you need.

[Tomo_89]

well then what would you call it ?

pumpkin

[Struth]

i see more magazine mechanics giving tips here? you have to run a rear hump sump because of front diff punkin hitting have seen commodore used but too close so just sorce a hq high volume sump suit small block there baffeld and cost around $400 high energy is 1 brand.

If you knew what you were on about you'd be exlaining how he can build his own

[Harb]

If you are going to build one or mod an existing one, depending on your setup, try and make the lowest part, or the part where the oil pickup is located at the rear of the sump....
the engine will usually be under its highest loads going up hills etc, so the oil needs to be returned to the lowest part of the sump asap.
Going down hill the engine is usually under no or not much load and can withstand periods without oil longer if it happens........
Windage trays are also useful to keep the oil low in the sump , and tho keep the crank from picking up the oil and dragging it away from the pickup....also wasting power turning the crank into a pump....

cheers
Harb

[Struth]

If you are going to build one or mod an existing one, depending on your setup, try and make the lowest part, or the part where the oil pickup is located at the rear of the sump....
the engine will usually be under its highest loads going up hills etc, so the oil needs to be returned to the lowest part of the sump asap.
Going down hill the engine is usually under no or not much load and can withstand periods without oil longer if it happens........
Windage trays are also useful to keep the oil low in the sump , and tho keep the crank from picking up the oil and dragging it away from the pickup....also wasting power turning the crank into a pump....

cheers
Harb

Couldn't agree more, mine has the pan at the front, because I had to.
When going up steep stuff and giving it some berries it soon drains the pan of oil and it becomes switch off and snatch/hand winch time.

Going down hill you really only idle, so a rear sump pan wont drain of oil in any hurry at all.

I have since built another sump for a mate identical to mine except with a baffle to keep as much oil in the front pan as possible on steep stuff.

It will still drain eventually but it will supply oil for a longer time.

Cheers

[just cruizin']

Comp truck therefore I read all sorts of massive angles. Only one answer dry sump. Diff centre ..... blah blah blah, up hills ..... blah blah blah, oil pickup ..... blah blah blah, DRY SUMP.

[Struth]

Comp truck therefore I read all sorts of massive angles. Only one answer dry sump. Diff centre ..... blah blah blah, up hills ..... blah blah blah, oil pickup ..... blah blah blah, DRY SUMP.

You could well be right, I do conversions not comp trucks

[MARKx4]

Comp truck therefore I read all sorts of massive angles. Only one answer dry sump. Diff centre ..... blah blah blah, up hills ..... blah blah blah, oil pickup ..... blah blah blah, DRY SUMP.

You could well be right, I do conversions not comp trucks

e

I belive he is right, im a beliver in dry sump set ups. The problem they are very expensive and alot of people dont want to spend that type of money on a sump setup because they can get a sh!t load of extra mods for that money.

So best bet on a budget is to get a rear pickup sump with a high volume oilpump for added sercurity.

[tozook]

Dry sump setup would be optimal i think, if you dont mind spending $$$

would a dry sump work on a daily drive/weekend toy

[nastytroll]

Comp truck therefore I read all sorts of massive angles. Only one answer dry sump. Diff centre ..... blah blah blah, up hills ..... blah blah blah, oil pickup ..... blah blah blah, DRY SUMP.

You could well be right, I do conversions not comp trucks

e

I belive he is right, im a beliver in dry sump set ups. The problem they are very expensive and alot of people dont want to spend that type of money on a sump setup because they can get a sh!t load of extra mods for that money.

So best bet on a budget is to get a rear pickup sump with a high volume oilpump for added sercurity.

The other problem would be spinning the drive belt off in mud and such.

[Big_GQ]

So at the end of the day without blowing the budget all you need is a rear hump sump like i said and why would u stuff around and make one when u can by them for $400, oh and struth u tool the only reasion you had to make your crapy sump is because of your stiff and crap ifs surf.

[Struth]

So at the end of the day without blowing the budget all you need is a rear hump sump like i said and why would u stuff around and make one when u can by them for $400, oh and struth u tool the only reasion you had to make your crapy sump is because of your stiff and crap ifs surf.

SMD

[Big_GQ]

i think you should go and read another magazine and get more idears in your stupid south of the border melbourne head and take you crap box surf on 31 inch tyres and go touring like the old man you are.

[Harb]

Dry sumps are a PITA, take it from someone who has deal with plenty of them.....
the belts are prone to coming off with mud and crap going through and a direct enclosed drive system is expensive as......plus you have to find somewhere to mount the oil tank and if you have a seriously good engine, you really need to take the belt off and prime the oil before cold starts etc....
They solve one problem and create 25 others.
In some cases they are really the only way to go, but in our style of offroad I recon they are not.....IMHO anyway
unless of course you are doing Baja type races.........

[bazooked]

what about an accumulator set up?

[balzackracing]

what about an accumulator set up?

x2
I first seen them on some 6BT cummins engines that were used as automated emergency fire pumps. They were fitted to keep the turbo's lubed with oil during shutdown.
I was planning on making my own for the 75. The Hungy wont see those sort of angles.
Saying all that I have modded a sump for a mates 400 SB drag car just buy installing a windage tray some baffles and some steel hinges around the pick up, works a fuckin treat.

[want to be a wylie]

play nice children

dont know much about sumps

can someone tell me what a dry sump looks like of how it works sounds odd to me

[Harb]

play nice children

dont know much about sumps

can someone tell me what a dry sump looks like of how it works sounds odd to me

It looks like any other sump, but mostly its shallower....
It has a drain hole with a pipe or sometimes 2, one at the front and one at the rear, that connect to a scavenge pump that sucks the oil out of the sump and discharges that oil into a reservoir or holding tank.
another pump. usually just another waffer or segment of the scavange pump....ie 2 pumps in the same housing then sucks the oil from that tank and feeds it into the engine just like the normal pump.
its called a dry sump because there is no oil stored in the sump itself.....
the pumps are usually belt driven from the front of the crankshaft with a gilmer style belt..... like a little blower belt, but can also be directly driven from any rotating part of the engine ie front of the cam etc etc.... but most are belt driven.

[want to be a wylie]

thanks mate
photos look good

[Struth]

i think you should go and read another magazine and get more idears in your stupid south of the border melbourne head and take you crap box surf on 31 inch tyres and go touring like the old man you are.

Like you said use a rear sump, I must agree you are absolutely correct there



But hang on you said that exactly two whole posts after I said it in this very same thread, glad to see I could inspire your young, dumb ass into the right answer to the original question

Now run along sunny boy and annoy someone who's intelligenec is that low that you might actually be able to better them in an
argument