Go Back   Rotary Car Club > Tech Discussion > RX-7 2nd Gen Specific (1986-92)

RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

Reply
 
Thread Tools Display Modes
Old 05-11-2009, 03:23 PM   #1
Atkins Dan
Premium Vendor
 
Atkins Dan's Avatar
 
Join Date: Feb 2008
iTrader: (6)
Posts: 265
Rep Power: 17
Atkins Dan is on a distinguished road
Default Would anyone want new Front hubs for the FC???

Please post here...

http://rotarycarclub.com/rotary_foru...ead.php?t=7947

Mazda list on these is about 450 to 500.00 each for these....

My Question to you all is there enough interest in making these..

With these you will be able to replace the bearings as the stock ones you cant get the bearing races to reseat.. at least I have not had the luck in doing so..

If there is enough interest the target price would be about 1/2 of what Mazda is asking...

When you post up I will need top know 4 or 5 lug hubs...
Dan






__________________
82 SuperCharged rx-7 {my toy not the daily driver anymore now under restoration}

88 B2200 rotary powered with a 7inch Camden SuperCharger !RIP! Jan/4/2007

2001 626 5-speed 80k on the clock all stock {Truck replacement}

2005 MAZDA6 V6 WAGON now that is a pimping ride all stock for the moment.. Paid off

WWW.AtkinsRotary.com
Atkins Dan is offline   Reply With Quote
Old 05-11-2009, 11:36 PM   #2
Max777
Pirate
 
Max777's Avatar
 
Join Date: Mar 2008
Location: Central IL
iTrader: (5)
Posts: 1,323
Rep Power: 18
Max777 is on a distinguished road
Default

Dan, I would like to let people know about an alternative aftermarket product in the same price range as what you're offerning:


You can get 2 Super Now! duraluminum hubs for $500 SHIPPED to your door.

http://www.rhdjapan.com/jdm-low/Supe...C3S-RX-7-54461




I really like this company, however their products are not widely available to the US market at the moment, but that would change if they were picked up by a vendor.







__________________
Rotaries:They are NOT that complicated!

Last edited by Max777; 05-12-2009 at 03:18 PM..
Max777 is offline   Reply With Quote
Old 05-12-2009, 07:20 AM   #3
My5ABaby
Sigh.....
 
My5ABaby's Avatar
 
Join Date: Feb 2008
Location: Murfreesboro, TN
iTrader: (6)
Posts: 2,377
Rep Power: 19
My5ABaby will become famous soon enough
Default

He's saying he's going to offer them around $200-250...
__________________
1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles

Community Service Manual

RotorWiki

"Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel

Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."
My5ABaby is offline   Reply With Quote
Old 05-12-2009, 08:59 AM   #4
Atkins Dan
Premium Vendor
 
Atkins Dan's Avatar
 
Join Date: Feb 2008
iTrader: (6)
Posts: 265
Rep Power: 17
Atkins Dan is on a distinguished road
Default

Max Can you change the bearings in those hubs???? if you cant than what is the point plus for that kind of money I may as well will go to Mazda and get them. If I want new.
Thanks for the link though..
Dan
__________________
82 SuperCharged rx-7 {my toy not the daily driver anymore now under restoration}

88 B2200 rotary powered with a 7inch Camden SuperCharger !RIP! Jan/4/2007

2001 626 5-speed 80k on the clock all stock {Truck replacement}

2005 MAZDA6 V6 WAGON now that is a pimping ride all stock for the moment.. Paid off

WWW.AtkinsRotary.com
Atkins Dan is offline   Reply With Quote
Old 05-12-2009, 02:55 PM   #5
Max777
Pirate
 
Max777's Avatar
 
Join Date: Mar 2008
Location: Central IL
iTrader: (5)
Posts: 1,323
Rep Power: 18
Max777 is on a distinguished road
Default

I am not 100% sure, from the pictures, you change the bearings the same way as stock:

weld a tab to the race, and punch it out, then flip and repeat. Afterwards, press in new races and install new bearings.

Also, the price would be $250 each, right? $500 is for a set of TWO HUBS, so this would be the same as buying two factory hubs but better. I guess that someone might want to buy a single hub, but If I was replacing them, I dont see any reason not to upgrade.

Does the pair rule apply to hubs the same as it does to shocks, springs, pads, and tires? (replaced in pairs on both sides)


PS: Sorry to steal your thread Dan...
__________________
Rotaries:They are NOT that complicated!

Last edited by Max777; 05-12-2009 at 03:11 PM..
Max777 is offline   Reply With Quote
Old 05-12-2009, 03:16 PM   #6
WE3RX7
RCC Addict
 
Join Date: Feb 2008
Location: VA
iTrader: (1)
Posts: 1,812
Rep Power: 18
WE3RX7 is on a distinguished road
Default

Not to play devils advocate, but I just recently replaced my wheel bearings... its not a terribly trivial thing to do.

However, I would not have been opposed to new hubs if they were in that $250/pr price range...
WE3RX7 is offline   Reply With Quote
Old 05-12-2009, 03:18 PM   #7
My5ABaby
Sigh.....
 
My5ABaby's Avatar
 
Join Date: Feb 2008
Location: Murfreesboro, TN
iTrader: (6)
Posts: 2,377
Rep Power: 19
My5ABaby will become famous soon enough
Default

Quote:
Originally Posted by Max777 View Post
I am not 100% sure, from the pictures, you change the bearings the same way as stock:

weld a tab to the race, and punch it out, then flip and repeat. Afterwards, press in new races and install new bearings.

Also, the price would be $250 each, right? $500 is for a set of TWO HUBS, so this would be the same as buying two factory hubs but better. I guess that someone might want to buy a single hub, but If I was replacing them, I dont see any reason not to upgrade.

Does the pair rule apply to hubs the same as it does to shocks, springs, pads, and tires? (replaced in pairs on both sides)


PS: Sorry to steal your thread Dan...
Welding a tab isn't worth it. Just heat the hell out of the hub and it should just fall out.
__________________
1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles

Community Service Manual

RotorWiki

"Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel

Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."
My5ABaby is offline   Reply With Quote
Old 05-12-2009, 03:19 PM   #8
Max777
Pirate
 
Max777's Avatar
 
Join Date: Mar 2008
Location: Central IL
iTrader: (5)
Posts: 1,323
Rep Power: 18
Max777 is on a distinguished road
Default

/\ It's how I did mine, I had a welder available.....


Also, dan are you offering them for $250 for a PAIR? The way you worded it, I uderstood it as 1/2 of $500 for each, so $250 for each, which would be $500 for two....
__________________
Rotaries:They are NOT that complicated!

Last edited by Max777; 05-12-2009 at 03:23 PM..
Max777 is offline   Reply With Quote
Old 05-12-2009, 03:21 PM   #9
My5ABaby
Sigh.....
 
My5ABaby's Avatar
 
Join Date: Feb 2008
Location: Murfreesboro, TN
iTrader: (6)
Posts: 2,377
Rep Power: 19
My5ABaby will become famous soon enough
Default

Quote:
Originally Posted by Max777 View Post
/\ It's how I did mine, I had a welder available.....
If you can weld it's a fine way to do it, but most people don't.
__________________
1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles

Community Service Manual

RotorWiki

"Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel

Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."
My5ABaby is offline   Reply With Quote
Old 05-12-2009, 05:27 PM   #10
Atkins Dan
Premium Vendor
 
Atkins Dan's Avatar
 
Join Date: Feb 2008
iTrader: (6)
Posts: 265
Rep Power: 17
Atkins Dan is on a distinguished road
Default

Max I am not worried about you steeling my thread as I was not aware of RHD having these available..

I will have to get one and see if the bearings can be replaced..if they cant be than I would thing I have the upper hand..We shall see..

Dan
__________________
82 SuperCharged rx-7 {my toy not the daily driver anymore now under restoration}

88 B2200 rotary powered with a 7inch Camden SuperCharger !RIP! Jan/4/2007

2001 626 5-speed 80k on the clock all stock {Truck replacement}

2005 MAZDA6 V6 WAGON now that is a pimping ride all stock for the moment.. Paid off

WWW.AtkinsRotary.com
Atkins Dan is offline   Reply With Quote
Old 05-12-2009, 09:53 PM   #11
Max777
Pirate
 
Max777's Avatar
 
Join Date: Mar 2008
Location: Central IL
iTrader: (5)
Posts: 1,323
Rep Power: 18
Max777 is on a distinguished road
Default

Ok, cool, however I dont understand what you mean by "I will have to see if the bearings can be replaced?"

What is the problem with replacing the bearings on the stock hubs? I got mine done just fine... and if there is a problem, then how will the product you offer be better over OEM?

I was reading a bit on the Super Now! hubs and it states that they are more resistant to heat and warping then their stock counterparts, which makes me think that any bearing race issues might just be caused from warping of the hub body itself? The wheel hub does get quite hot as it touches the brake rotor. Am I on the right track here?
__________________
Rotaries:They are NOT that complicated!
Max777 is offline   Reply With Quote
Old 05-12-2009, 11:04 PM   #12
vex
RCC Loves Me Not You
 
vex's Avatar
 
Join Date: Jul 2008
Location: Influx.
iTrader: (6)
Posts: 2,113
Rep Power: 19
vex will become famous soon enough
Default

Quote:
Originally Posted by Max777 View Post
Ok, cool, however I dont understand what you mean by "I will have to see if the bearings can be replaced?"

What is the problem with replacing the bearings on the stock hubs? I got mine done just fine... and if there is a problem, then how will the product you offer be better over OEM?

I was reading a bit on the Super Now! hubs and it states that they are more resistant to heat and warping then their stock counterparts, which makes me think that any bearing race issues might just be caused from warping of the hub body itself? The wheel hub does get quite hot as it touches the brake rotor. Am I on the right track here?
Some people have difficulty with replacing the bearings in the hubs. Other makers/cars have an efficient way of replacing bearings without too much of a headache. I believe Dan is talking about getting a set developed to mimic the other cars that have easily swapped bearings.
vex is offline   Reply With Quote
Old 05-12-2009, 11:48 PM   #13
Max777
Pirate
 
Max777's Avatar
 
Join Date: Mar 2008
Location: Central IL
iTrader: (5)
Posts: 1,323
Rep Power: 18
Max777 is on a distinguished road
Default

I heard that the spindles on the FC are made of soft metal and sometimes have problems with the hubs bending them.....

Do you think there's a way to utilize some sealed bearings in the hub like some FWD models?
__________________
Rotaries:They are NOT that complicated!
Max777 is offline   Reply With Quote
Old 05-13-2009, 08:39 AM   #14
Atkins Dan
Premium Vendor
 
Atkins Dan's Avatar
 
Join Date: Feb 2008
iTrader: (6)
Posts: 265
Rep Power: 17
Atkins Dan is on a distinguished road
Default

I replace a few bearing in the 86-91 hubs back in the 90's and they did not last the races would not seat.. So I am thinking like a 1st gen guy as I can change thoes bearing all day long with out a problem. plus the 1st gens are castiron and the hub is built into the brake rotor.
where the 2nd gens it is 2 different parts so if I come up with a castiron or steel hub than anyone will be able to replace the bearings with no problem

I have never been able to have the luck that some of you have had with the 2nd gens..

Dan
__________________
82 SuperCharged rx-7 {my toy not the daily driver anymore now under restoration}

88 B2200 rotary powered with a 7inch Camden SuperCharger !RIP! Jan/4/2007

2001 626 5-speed 80k on the clock all stock {Truck replacement}

2005 MAZDA6 V6 WAGON now that is a pimping ride all stock for the moment.. Paid off

WWW.AtkinsRotary.com
Atkins Dan is offline   Reply With Quote
Old 05-13-2009, 02:52 PM   #15
classicauto
crash auto?fix auto
 
classicauto's Avatar
 
Join Date: Feb 2008
iTrader: (0)
Posts: 816
Rep Power: 17
classicauto is on a distinguished road
Default

I've always welded a bolt across the race and tapped it out with a hammer. A couple quick tacks and light taps drop it out. Haven't had an issue with seating new races/shortened bearing life *yet* though.

If you make them, you could simply do what mazdatrix says to do when changing the bearings - grind notches out of the center shoulder. Except being that you're making the whole assembly, you could put 3 or 4 notches in to allow a punch to get under the backside of the race - that should do it

w00t for new FC products
__________________
Quote:
Originally Posted by djmtsu View Post
Wars are started over beliefs. Ideas are safer.
classicauto is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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

Forum Jump


All times are GMT -5. The time now is 10:49 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Hosted by www.GotPlacement.com
Ad Management by RedTyger