oil pump gear upgrade

thesup3rfly · Oct 17, 2006

Harmonic vibrations are why you want the new gear. Basically, if you remove the stock pulley, you're removing some sort of damper. The undamped vibrations from the engine at certain RPMs cause excess stress on the pump gear. Upgrading the gear to a stronger material allows it to deal with this increased stress without shattering as the stock one will.

FITGT · Oct 17, 2006

thesup3rfly said:
Harmonic vibrations are why you want the new gear. Basically, if you remove the stock pulley, you're removing some sort of damper. The undamped vibrations from the engine at certain RPMs cause excess stress on the pump gear. Upgrading the gear to a stronger material allows it to deal with this increased stress without shattering as the stock one will.

thanks

Boosted2.0 · Oct 17, 2006

I talked to littlerocket about this a few weeks ago - his CNC shop is still tweaking the process to where the gears get cut properly

Boosted2.0 · Oct 17, 2006

FITGT said:
What do new oil pump gears do for you? and why do you need new ones if you get the pully set?

The stronger gears should eb able to withstand higher RPMs, higher pressures, higher oil volumes, and hopefully not shatter if the pump sucks air from the pan

nyoneway · Oct 17, 2006

Boosted.. I just installed MWR's moroso oil pan prior to blowing my oil pump. I was going slight incline (bridge) WOT on 3rd gear near redline. My oil level was about 3/4 full (check dipstick a day earlier). Do you think the oil-pan change the oil pickup level esp on a incline that may have cause oil starvation?

kortik · Oct 17, 2006

you think that moroso oilpan will solve the probelm?

nyoneway · Oct 17, 2006

kortik said:
you think that moroso oilpan will solve the probelm?

Personally, I thought it would help. But I blew my oil pump shortly after intalling the MWR/Moroso oil pan. Whether it's enough to draw an anecdotal correlation, I don't know.

kortik · Oct 17, 2006

read this Jesse IL had something to say about the moroso oil pam
http://www.newcelica.org/forums/showthread.php?t=224816

FITGT · Oct 18, 2006

Boosted2.0 said:
The stronger gears should eb able to withstand higher RPMs, higher pressures, higher oil volumes, and hopefully not shatter if the pump sucks air from the pan

thanks.

I hope the oil pan was not causeing problems? I do not understand how. I read that fourm.

Boosted2.0 · Oct 18, 2006

nyoneway said:
Boosted.. I just installed MWR's moroso oil pan prior to blowing my oil pump. I was going slight incline (bridge) WOT on 3rd gear near redline. My oil level was about 3/4 full (check dipstick a day earlier). Do you think the oil-pan change the oil pickup level esp on a incline that may have cause oil starvation?

Its possible - the sump is very long front to back - if its not baffled front to back then I could definitely see all the oil running to the back of the sump and exposing the pickup. If it was a long incline the return oil might have just been going to that part of the pan. Do you habe pics of the inside of the pan and how its constructed?

nyoneway · Oct 18, 2006

Yes it was on a long incline. I figure that plus high acceleration push enough oil back esp when level is not full for it to pick up some air.

LilRocketSpyder · Oct 18, 2006

zuoom said:
hi LilRocketSpyder,

you manage to get your proto out?

the reply i got from circuitworx is still no go. i'm actually doing a groupbuy on behalf of the guys in CelicaSG. we have 5 orders that's hanging in the air currently..

regards,

Yeah first prototype is ready for a wear pattern check.

Monster Hui · Oct 18, 2006

Boosted2.0 said:
Its possible - the sump is very long front to back - if its not baffled front to back then I could definitely see all the oil running to the back of the sump and exposing the pickup. If it was a long incline the return oil might have just been going to that part of the pan. Do you habe pics of the inside of the pan and how its constructed?

there are 4 gates surrounding where the pick up is... as long as the pan has enough oil, the pick up shouldn't be exposed in corners/accel/deceleration.

Boosted2.0 · Oct 18, 2006

Hmm - should be fine then. I do have to wonder about on a long uphil accell though. Anyone know where I can find some pics of the baffling and inside of that pump.

Maybe the front edge of the picup allowed some air in, and the weak stock gear and the UR pulleys did the rest? I would like to know the RPM point at the time of failure.

nyoneway · Oct 18, 2006

I think it was between 7000-8000 rpm.

zuoom · Oct 23, 2006

LilRocketSpyder said:
Yeah first prototype is ready for a wear pattern check.

how did the checks went? .P

Redliner9k · Oct 23, 2006

zuoom said:
how did the checks went? .P

^^
:wave:

The__J__Factor · Oct 23, 2006

RR sell elise oil pumps, they r a perfect fit and coz it comes from the lotus its designed to take high level stress caused by track work, so thats always an option instead of engineering a completly new product.

kortik · Oct 23, 2006

RR=Ragnarock racing right?

zuoom · Oct 23, 2006

o, interesting. will dig further on RR site.

hmm...
maybe at the same time, we can go for the Accusump Kit. .P
http://www.ragnorakracing.com/catalog/item/2240746/1715516.htm

oil pump gear upgrade

thesup3rfly

FITGT

Boosted2.0

Boosted2.0

nyoneway

kortik

nyoneway

kortik

FITGT

Boosted2.0

nyoneway

LilRocketSpyder

Monster Hui

Boosted2.0

nyoneway

zuoom

Redliner9k

TheJFactor

kortik

zuoom

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