node

I hope this is in the right section since it is about a 4runner engine.

I just started gathering togeather the components I need to raise the redline in my 5VZ-FE engine. I already have valve springs and retainers in hand as well as a bunch of other components on order for my build up. Im also looking into a regrind for the cams.

I could use some help locating a high volume oil pump for my motor though. I dont really want to go through the trouble of fabricating a dry sump system if I dont have to.

Do any of you have a solution for more oil volume and/or pressure?

DavidA

Um....you have a 3.4 in a MR2 with TWIN Turbos???? Crap!

I want it!!!!

chillaxin85

Sorry I have no idea where to begin to know how to help you. But damn thats badass!!
That's a wicked power to weight ratio to have! I would really like to turbocharge my 4runner but i have no i dea where to start and nor the money. Props for being a pioneer with the 3.4!!

node

Thanks for the compliments guys.

I have found a few different pumps that could possibly work for my application. Does anyone have any expericance with these? The TOGA HV Oil Pump www.importperformanceparts.net

What do you guys think, they say the pump flows more than stock but I want some actuall numbers. Im looking for high 7000's in the RPM range when I finish my built motor. My engine builder has given me some numbers to shoot for in order to keep from spinning a rod berring with the loose tolerances we are setting the motor up for. I dont want to spend all this money and just guess at what the pump can flow. Any input would be wellcome.

Jim

94x4

No experience with that pump in particular, but any good stand alone oil pump would seem to be the ticket for your application (and would come with it's own flow chart for the numbers you need), save going the dry sump route which is, hands down, the better route.

rimpainter.com

Another option is to get a hold of one of the big guns, like Brian Trager and see what they use - if anything. There is a guy here running over 300 WHP right now and I never heard of him changing the stock oil pump, but he may not be racing for extended periods, etc.

Maybe Gadget would have some good advice...he emails back usually, so you may want to try him.

node

I have spoken with Gadget a few times, good guy, ill ask him about this.

The power levels are not the real issue for the oil pump. We think there is enough oil pressure for MUCH more than 300hp. For what I am doing I need a much broader power band. The only way to acheve that will be to move the redline up quite a bit. To do that I will most definatly need more flow to the rod berrings. Im dealing with a lack of space in this build so that is one reason im trying to avoid the standalone and dry sump systems.

94x4

Are you front or mid mounting (stock setup) the engine?

Need info for "space" reference.

node

The engine is mounted transverse (left to right instead of front to back). The front of the motor is facing the passenger side rear strut. Since the drive axel for the passenger side runs along next to the pan there is a big CV axel very close to the crank pully on what would be the left side of the motor. I also have my oil return to the pan from the turbos there. So, i have very little room on the left side of the motor for anything, let alone a multistage dry sump pump and lines. On the right side of the motor i have a bit more room but the alternator and water pump would make running a pully to a pump extremly difficult. There is no room over the transmission since the two turbos sit on top of it. The only possiblility I see would be an electric pump mounted on the right side of the block down low near the pan. Thats why im looking for an upgrade that will fit in the stock pump location, it will save me quite a headache.

94x4

Reiterating, with clarification, the suggestion of the "stand-alone" electric oil pump and tell me, have you "shelled" the rear quarters and turned the entire rear end into a "cowl"/"bonnet"-type hood on hinges ?

I ask because inside of the lower rear quarters, behind the wheels, would be a great place to put a pump/cooler..., you could even "louver" the lower, rear quater to help with cooling.

BTW, Niiiccce looking whip you've got there.

node

If I can locate an oil pump with enough capability I will mount the exchanger in one of the side scoops since the air already flows into there naturally. I am also going to mount a transmission cooler in the left side vent as well since the tranny has its own mechanical oil pump. I could mount an electrical pump off in the corner, away from the engine I suppose hmmm.

As to your question, the car is still unibody. I have just cut a few holes in stratigic places The bumper and fenders have been replaced with fiberglass but the trunk and engine bay cover remain mostly stock units.

94x4

And that would solve both the flow/pressure and space/location issues.

node

Still, i would like some input from others using upgraded mechanical pumps. Im not a big fan of my oil lines running like 6 feet from my engine and back, far too much exposure to road debis and vibration.

Plus I would have to fabricate a picup and a replacement idler pully where the timing belt runs around the current oil pump. I would probably have to make a baffle to replace where the mechanical pump was and put the idler pully mount on that. You can see what I was saying about a headache.

94x4

Why not machine a plate plumbed with a pick-up to supply the stand alone pump to cap the current oil pump location and merely do away with the necessity of an idler pulley by simply using a shorter belt ??

Also, inasmuch as I suggest utilizing the dead space there in the rear quarter panels behind (not in front where the "scoops" are) the rear wheels, I don't see the need for anything even close to "...6 feet..." of oil lines, more like 1-1/2'.