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Debating going to a Spool spline Drive oil pump gear setup, has anyone seen any failures, weird wear?

I currently have a Tomei Pump, Recently broke the Snout of my crank off at the track (no idea why) this has me thinking about switching to a different perhaps better setup.

 

Whats everyones thoughts on this these days..

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I purchased one last year and have put it into my new engine, but I haven't started it yet. Well made and the clearances were perfect, so in theory it should be a good thing.

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Yes, I've seen that thread.. more less just wanted to here some people that have a few years+ of use/abuse on them.

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There’s quite a few workshops in Melbourne who’ve used them with N1 oil pumps for years now. From Rb28’s to RB34’s. No failures or breakages, have run mid 7 second passes well over 1000hp and 8500rpm without issues and still going strong. Wish I did it when I had my motor built

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On 5/16/2018 at 4:49 PM, mitchum said:

Debating going to a Spool spline Drive oil pump gear setup, has anyone seen any failures, weird wear?

I currently have a Tomei Pump, Recently broke the Snout of my crank off at the track (no idea why) this has me thinking about switching to a different perhaps better setup.

 

Whats everyones thoughts on this these days..

If you have a Tomei Pump you do not need to scrap it. We supply a full conversion to Spline Drive. You would be better off with a Tomei as it it a better overal Pump.

D4CB4B58-AC83-4468-B4AE-D96D9D41E860.jpeg

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I'm confused, a tomei rb26 oil pump is a spline drive. What Harmonic damper were you using when the snout snapped?

Edited by burn4005

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16 hours ago, Frracer said:

If you have a Tomei Pump you do not need to scrap it. We supply a full conversion to Spline Drive. You would be better off with a Tomei as it it a better overal Pump.

D4CB4B58-AC83-4468-B4AE-D96D9D41E860.jpeg

I went with the Spool gears, yours are almost double the money.. i agree the Tomei pump is a better housing however.. having that much flow seems to cause more issues then it fixed..

 

Edited by mitchum

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3 hours ago, burn4005 said:

I'm confused, a tomei rb26 oil pump is a spline drive. What Harmonic damper were you using when the snout snapped?

Its still driven by the conventional method 2 flat spots on drive.. there are splines on the Tomei gears but not technically a spline drive.. my Tomei didnt fail me however it got pretty beat up with the crank snout breaking. I was using a Ross pulley.

I went back to an N1 pump housing i ported the entry and exits so it flows a little easier.. 

Tomei pump is good and all but having that much flow isnt really needed IMO.. causes more issues than it fixes with oil pooling in head and or sucking sump dry... Stock VG30 pumps and 2JZ pumps work just fine for 1000hp.. no reason a properly driven N1 pump cant supply a sufficient amount of oil.

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I've also went with spool spline drive gears, but in a standard rb26 oil pump housing. 

You may need to pull out the locating dowels on the block. 

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Pretty few and far between on a 2J though.. not to mention those are probably powdered metal gears or whatever junk they use..

But thanks for posting.

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