Billet Oil Pump Gears - Page 2 - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 01-16-2009, 03:05 PM   #21
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Jun 2008
Location: Houston, TX
Posts: 1,583
Total Cats: 8
Default

Ok, sooooo... Update time

This is what we know about all currently sold, and current model oil pump gears.

The oil pump gears width clearance (side clearance) has been set between .005-.006 depending on wear and how perpendicular your housing is. Thats just what we made them. This is completely acceptable as we've seen housings running on .011 clearance without problems of oil flow, or pressure. Yes its at the edge of the design requirement from factory but this greatly increases the capacity of the fluid bearing to keep the gears off the wall of the oil pump housing which is soft... soft aluminum.

Second.

Y8's housing with some wear recorded .006 with the new gears cut. That seems to be on task with what we want. The big thing I want to point out is the disturbing amount of wear in these housings. Y8's housing, and Abe's housing has shown a lot of wear. I believe both housings were under 40k miles and they were in worse shape then a pre-vvt oil pump at 200k miles. I'm not talking about a little bit either, if you tried to run a VVT oil pump for 150k miles as stock from the factory, I doubt it would make it. If your running one of these VVT housings, I would definitely say you should change the gears to a wider clerance gear then factory or you'll be in the same shape these guys are in. Questionable housings with bad wear patterns.

I have the 01-up replacements and I'm happy with the end product. So these are going out today. Please, please, letme know your clearances that you measure when you install these.

Last edited by TravisR; 01-17-2009 at 02:05 AM.
TravisR is offline   Reply With Quote
Old 01-16-2009, 03:43 PM   #22
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

what was the clearance of the OEM gears in my/abe's housing?
y8s is offline   Reply With Quote
Old 01-17-2009, 01:50 AM   #23
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Jun 2008
Location: Houston, TX
Posts: 1,583
Total Cats: 8
Default

Quote:
Originally Posted by y8s View Post
what was the clearance of the OEM gears in my/abe's housing?
I believe yours was .004 and then it tapered to .006, abes was at .004 and tapered to .009. Around the edges theres not much wear, but right where the teeth are these housings are really getting chewed on.
TravisR is offline   Reply With Quote
Old 02-23-2009, 02:48 PM   #24
Junior Member
iTrader: (1)
 
Join Date: Aug 2006
Location: Dallas, TX
Posts: 220
Total Cats: 1
Default

Any progress on the 2001+ gears? I'm still waiting for mine.
modernbeat is offline   Reply With Quote
Old 02-23-2009, 05:38 PM   #25
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Jun 2008
Location: Houston, TX
Posts: 1,583
Total Cats: 8
Default

Modern, I had thought I'd already sent yours, letme check my records again. Sorry for the delay!!
TravisR is offline   Reply With Quote
Old 02-23-2009, 09:11 PM   #26
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

HEY that reminds me, what's the story on my pump and gears? you mentioned my wear was an issue, but with the right clearance gears, is it going to last a while? and if so, when ya gonna send it all back?
y8s is offline   Reply With Quote
Old 02-24-2009, 01:58 AM   #27
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Jun 2008
Location: Houston, TX
Posts: 1,583
Total Cats: 8
Default

Heh, jeeze modernbeat, start a riot why don't you?? j/p I think he's still poking at yours, I'll ask him tomorrow.
TravisR is offline   Reply With Quote
Old 02-24-2009, 02:09 AM   #28
Newb
 
Join Date: Sep 2008
Location: Phoenix AZ
Posts: 15
Total Cats: 0
Default

so are the billet gears really worth it??? i mean what are the chances that the stock ones will fail?? besides how many vendors have them??
damasodeljr is offline   Reply With Quote
Old 02-24-2009, 11:29 AM   #29
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

Quote:
Originally Posted by TravisR View Post
Heh, jeeze modernbeat, start a riot why don't you?? j/p I think he's still poking at yours, I'll ask him tomorrow.
haha

Travis, I'm not in any hurry. I'm just afraid I'll forget if I dont get them back within, say, a couple months?
y8s is offline   Reply With Quote
Old 02-24-2009, 01:42 PM   #30
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Jun 2008
Location: Houston, TX
Posts: 1,583
Total Cats: 8
Default

Quote:
Originally Posted by damasodeljr View Post
so are the billet gears really worth it??? i mean what are the chances that the stock ones will fail?? besides how many vendors have them??
I'm the only vendor that has them for under $400. Failures are reasonably common on high horsepower and high RPM vehicles. Your engine will basically last about 3 seconds in highload conditions. The damage is almost immidiate, and it usaully destroys the block.

I'll have your pump back to you soon. It won't take much longer.

Modernbeat, could you please PM me your name and address?

Travis
TravisR is offline   Reply With Quote
Old 03-09-2009, 09:01 PM   #31
Junior Member
iTrader: (1)
 
Join Date: Aug 2006
Location: Dallas, TX
Posts: 220
Total Cats: 1
Default

Quote:
Originally Posted by TravisR View Post
...Modernbeat, could you please PM me your name and address?

Travis
What's going on? I sent you my address on the 24th.
modernbeat is offline   Reply With Quote
Old 03-09-2009, 10:37 PM   #32
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Jun 2008
Location: Houston, TX
Posts: 1,583
Total Cats: 8
Default

I sent them on Friday I believe. USPS w/delivery comp and insurance. I had to check through my records, I'm actually usually aloft somewhere too, so getting to everything is sometimes a task in my limited time w/my hard copy records. The whole reason it took longer then expected is also because of the oil pump housing wear. We're not sure on where these housings should be. Make sure you check them when you install them for proper fit. We've seen housings with over 10 thousandths of wear. The factory housings are not made properly they are too soft. So I was apprehensive about sending these out to anyone, but here they are.

Travis

Last edited by TravisR; 03-09-2009 at 11:41 PM.
TravisR is offline   Reply With Quote
Old 03-10-2009, 12:51 AM   #33
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

trav, what about laser cutting a wear plate to fit in under the gears?
y8s is offline   Reply With Quote
Old 03-11-2009, 04:26 PM   #34
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Jun 2008
Location: Houston, TX
Posts: 1,583
Total Cats: 8
Default

Thats the really expensive way to do it, I had that priced, and ouch! We have another way we are considering, but the price for the assembled unit is going up and up with these teaks. I think the retail might be 300-330 if I do what I have in mind to the housing to foreverize it.
TravisR is offline   Reply With Quote
Old 04-07-2009, 11:47 AM   #35
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

what is turn around time on a '99 gear? I let my friend use his and just decided to pull my motor and put these in...with much dismay.
hustler is offline   Reply With Quote
Old 04-07-2009, 12:05 PM   #36
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Jun 2008
Location: Houston, TX
Posts: 1,583
Total Cats: 8
Default

Ready to ship!
TravisR is offline   Reply With Quote
Old 04-08-2009, 11:01 AM   #37
Junior Member
 
Join Date: Feb 2008
Posts: 126
Total Cats: 1
Default

I just tried to email Boundary off their website, but got an error message. can someone email me their phone number? I need to buy a set of gears for my time attack car. The stock ones gave up and ruined an engine. I don't just want to input my credit card info into a website without having spoken to someone first.

Matt Andrews
matthew dot andrews at motorola dot com
949-275-3513
Matt [exz3owner] is offline   Reply With Quote
Old 04-17-2009, 01:12 AM   #38
Supporting Vendor
iTrader: (3)
 
emilio700's Avatar
 
Join Date: May 2005
Posts: 5,311
Total Cats: 1,334
Default

Quote:
Originally Posted by Matt [exz3owner] View Post
I just tried to email Boundary off their website, but got an error message. can someone email me their phone number? I need to buy a set of gears for my time attack car. The stock ones gave up and ruined an engine. I don't just want to input my credit card info into a website without having spoken to someone first.

Matt Andrews
matthew dot andrews at motorola dot com
949-275-3513
Your fully built FM stroker with 76mm turbo was using stock oil pump gears?

wow
emilio700 is offline   Reply With Quote
Old 04-21-2009, 04:35 PM   #39
Senior Member
iTrader: (1)
 
Join Date: Sep 2006
Posts: 738
Total Cats: 86
Default

I don't believe there were any decent gears on the market at the time the engine was built, and the ATi wasn't yet available.
Keith@FM is offline   Reply With Quote
Old 05-09-2009, 01:15 PM   #40
Elite Member
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

What's the latest scoop on the factory '01 pump gears? Are they higher volume than the earlier ones?
JasonC SBB is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
Moroso Air Oil Separator Catch Can Aroundcorner Miata parts for sale/trade 2 10-01-2015 04:20 PM
Walbro 255lph Fuel Pump $50 lsc224 Miata parts for sale/trade 2 10-01-2015 10:17 AM
Bad head gasket or ? shooterschmidty Engine Performance 8 09-30-2015 11:28 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:54 PM.