Tomei oil pump users

[markdett]

For all you users that have the said pump but do not run a sump extension id like to gather some info off you

Does your car see many track days/get driven very hard?, Are you running a restrictor in the block, if so what size?, Do you run a head drain? If you over fill your engine oil how much? and the most important have you encountered any oil starvation issue's running the Tomei pump with no extension?

Thanks guys,

Mark

[gtrjon]

You wont find too many guys on here running the tomei pump let alone one without a sump extension. Personally I run it with the greddy extension. The one guy that comes to mind would be curtisgoodman but i dont think hes on here to much anymore

[nimblestix]

I run a Jun pump with a trust deep pan, I've never had any oil starvation problems under really hard turning. I run between 5 and 6 liters of oil. I also am using a tomei oil orifice restrictor.

I've heard that the tomei baffle with an n1 pump is also a decent combination for casual track use on a budget.

Sent from my Galaxy Nexus using Tapatalk 2

[cortexx]

I have the tomei pump going on my replacement block with a tomei baffle pan for the factory oil pan , I have the tomei oil restrictor that came with the tomei head gasket (this restrictor is a must) and will be using around 6.5 quarts of oil due to massive HKS oil cooler i have .

For me the car will see the occasional track day and street use , the reason i have this is because i want my bottom end as bomb proof as possible (without going dry sump) .I Dont intend to remove this block again once the job is done. I have alot of expensive parts in my engine and would be a bit upset if i cheaped out ont he pump and it failed.

[markdett]

I have the tomei pump going on my replacement block with a tomei baffle pan for the factory oil pan , I have the tomei oil restrictor that came with the tomei head gasket (this restrictor is a must) and will be using around 6.5 quarts of oil due to massive HKS oil cooler i have .

For me the car will see the occasional track day and street use , the reason i have this is because i want my bottom end as bomb proof as possible (without going dry sump) .I Dont intend to remove this block again once the job is done. I have alot of expensive parts in my engine and would be a bit upset if i cheaped out ont he pump and it failed.

Thanks for that.

The reason I ask is i keep getting mixed opinions about running an extended sump with the Tomei oil pump. Some people are stating you have to run an extension (not from personal experiences). Where a few say it should be ok for a streeter.

No one has really gave me any hard evidence/personal experiences with running a Tomei pump with no extension.

My current oil control mods are:
1.5mm Tomei oil restrictor
Tomei sump baffle kit
Mines cam baffles
Nismo oil catch can
Tomei Oil pump
No mods C/O to the oil return side of things

In my eyes id say it should be ok so long as I over fill the oil by about a litre. But some good personal experience would be good to just back up my assumption.

[cortexx]

Dont overfill the oil too much , the crank hitting it at high revs can seriously damage the bottom end . Windage with too much oil causes all kinds of problems.

To be honest if you use the restrictor and the pan baffle kit and a good oil cooler you should be good for the track. Failiure of the pump is what usually causes engine oil starvation , not a lack of oil capacity in the pan. A decent oil pressure gauge is a must , this will give you some early warning too , already saved my engine once.

[markdett]

Dont overfill the oil too much , the crank hitting it at high revs can seriously damage the bottom end . Windage with too much oil causes all kinds of problems.

To be honest if you use the restrictor and the pan baffle kit and a good oil cooler you should be good for the track. Failiure of the pump is what usually causes engine oil starvation , not a lack of oil capacity in the pan. A decent oil pressure gauge is a must , this will give you some early warning too , already saved my engine once.

I think the most major problem people that track there car has issue's with is pumping there head full of oil.

The oil cannot drain back to the sump quick enough and therefor it leaves you with less oil in the sump, time that with a high G forced corner and you have catastrophic engine failure.

People do mod the oil returns from the head (9-10mm drilling out of the head and the block oil returns), but still sometimes the oil cannot drain back quick enough due to the crank case pressure. Another fix for that is usuing a head drain on the back of the head, which works better as a pressure releiver of the sump pressure into the head then an actual drain itself.

Seeing as its just going to be a streeter, I should be ok with a sump baffle and oil restrictor. Like stated above.

Anymore people have an info they can share which may or may not back up my assumption of wheather or not to use an extended sump?

[NismoS-tune]

You don't need a tomei pump and if you did, you won't be worry about the extra cost of a complete setup (sump extension and what not). I'm $xk into my oil setup with the Tomei pump and I think I shoulda spent the extra 3-4k on a good dry sump. Then again, I have an open ended budget.

You'll be fine with what you have. TOMEI themselves recommend a sump extension but is not necessary. You'll be fine. Worry about the fueling now haha

[markdett]

You don't need a tomei pump and if you did, you won't be worry about the extra cost of a complete setup (sump extension and what not). I'm $xk into my oil setup with the Tomei pump and I think I shoulda spent the extra 3-4k on a good dry sump. Then again, I have an open ended budget.

You'll be fine with what you have. TOMEI themselves recommend a sump extension but is not necessary. You'll be fine. Worry about the fueling now haha

http://forums.gtrcanada.com/gt-r-project-cars/56001-markdetts-r32-gtr-restoration-full-engine-rebuild-3.html

Just to give you an insight of my actual build. I already have a Tomei oil pump fitted to my engine, with a Tomei sump bafflie kit and head restrictor already fitted. Tomei actually recommend using the baffle kit for street applications, and an extension for track use.

I would like to back this statement with some experience from people who are running the pump with no extension for street use

[hozer]

The only real reason to buy a tomei pump (in my mind) is if you are going to get the extension. I don't know of anyone on this forum that has bought one without the other, street or track. My car is track and you absolutley need the extension or you can starve the pump... A true street car shouldn't need it as you wont get the type of spirited driving that would casue issues, but whats an extra $500 to extend the sump when youve already spent triple that on a pump. Overfilling can be risky, get the extension

[cortexx]

For the speed my wrinkly ass is likely to go around the track i won't need the extension

[markdett]

The only real reason to buy a tomei pump (in my mind) is if you are going to get the extension. I don't know of anyone on this forum that has bought one without the other, street or track. My car is track and you absolutley need the extension or you can starve the pump... A true street car shouldn't need it as you wont get the type of spirited driving that would casue issues, but whats an extra $500 to extend the sump when youve already spent triple that on a pump. Overfilling can be risky, get the extension

I'm not willing to run a trust extension. I used to work
At a performance shop and a car came in that had one which went over the ripple strip and into the sand and had ripped his sump extension off. There went his hks 2.8 engine.

If I was to get an extension at all it would be a hi-octane racing sump. Which follows the same design as the winfield r32 that took out Bathurst giving the gtr it's name Godzilla. These sumps go for a little over 2k aud. considering I paid 1400aud for my pump this is why I'm making sure it will be completely required.

[curtisgoodman]

I'm still here!!!! Just dont post often or ever update my thread... tomei pump is for balla's (got all my parts when our dollar was at 1.14 ) i use it with no sump extension just a baffle (nismo i think) and my car has only been street driven as well... but i also run a little more oil in the pan, have an extra head drain back mod and a tomei head oil restrictor... if your so worried someone was putting together dry sump kits on here not too long ago get one of those... sound like u got the funds anyways

[markdett]

I'm still here!!!! Just dont post often or ever update my thread... tomei pump is for balla's (got all my parts when our dollar was at 1.14 ) i use it with no sump extension just a baffle (nismo i think) and my car has only been street driven as well... but i also run a little more oil in the pan, have an extra head drain back mod and a tomei head oil restrictor... if your so worried someone was putting together dry sump kits on here not too long ago get one of those... sound like u got the funds anyways

This is the exact info im after! Thanks for the info kind sir. I'm pretty much at the end of my budget that's why I'm umming and ahhing about this.

How long has the car been running like this? I'm guessing you drive it pretty hard too?

[Dragon Humper]

What kind of turbo(s) are you running, BB or journal? Are you running big oil clearances on all your brgs because you plan on reving the piss out of it? Why do you guys feel the need to run a pump that has so much volume to it? If you are having major issues with the head filling up with oil even with the restricter then maybe you don't need that much oil. I can't see the need in an ocational track car to have all that volume. A pure race car sure, volume means extra cooling for everything (cons, mains, turbos, bottoms of the pistons).

The Tomei pump was designed for one thing only, to pump a crap load of oil in a race engine. I think most of us would have everything we needed from the lowly N1 with Reimax gears in it.

By the way, stock pump, stock baffle, 1/2 a litre over on the fill, 800hp and I have pulled over a G in some very long sweepers.....no issues.



Jon.