Fun with RX7 rims - Page 2

**iggypop** · 10-4-03, 23:59

how cheap an you get them (MSP rims ) ??

i think RX8 have even bigger off set then FD's ..

**91maz626lx** · 10-5-03, 0:06

i can get parts at wharehouse plus 3% it aint to bad at all
the offset can be changed with rings i just wana know if they will actually fit?

**probepgt** · 10-5-03, 16:32

they say on there same off set as the fds.. later

**mx6GT91** · 10-5-03, 19:39

Quote:

does anyone know if the new rx8 wheels will fit or even the 5 lug mazdaspeed prodege wheels.

RX8's will fit but i dont know about the offset but arent they 18's?? MSP will fit and they would look great. Pretty much an 5lug Mazda wheel would fit our cars

Since you work at Mazda, whats the RX8 (6speed) shiftknob worth??

**91maz626lx** · 10-6-03, 19:45

hahahahaha i was looking at the same thing. actually i was thinking of getting the seats,steering wheel,wheels and shift knob i thinkit's kinda expensive cause it lights up red and sh67 but i'll get a list price for ya. i was hoping the msp wheels would work just a pitty there 17"s i want 18"s i'll take a look at the price again and then make a decision

**gavin** · 10-28-03, 0:46

Little update.

As Iggypop had mentioned, when using spacers(especially as large as mine) you may run into the problem of snapping stud bolts. Not a pleasant scenario.

Solution: longer, stronger stud bolts.

Even though I had gone to the trouble of finding OEM applications that were thicker shouldered than the stock pieces, Rickyracers suggestion of ARP bolts made them immediately irrelavant.

ARP 100-7708 hardened studs
late model Corvette/Camaro/Firebird
2.5" long, 12x1.5 pitch, 13mm knurl
@ 12$ for a pack of 5

not a problem.

Gavin

**GT40man** · 10-28-03, 4:08

you still need a body kit

**gavin** · 10-28-03, 9:48

no! I dont wanna kit and you cant make me. :P

Gavin

**NPA!** · 11-1-03, 0:53

Gavin,
Do I see a stock exhaust?

**gavin** · 11-1-03, 1:37

Yes you do. The original I think. Its in surprisingly good shape. I suppose Ill change it one of these days when I stop mucking around with suspension.

Gavin

TheUnknown · 11-10-03, 4:04

heh, everytime i see the pics of gavins car i can't help but notice the zip tied brake lines...hows that workin for ya? and how long did it take to do that?

Ricky Racer · 11-12-03, 7:24

Looks good Gavin. Did you notice much difference in handling when you switched from the Ecsta 712s to the Kumo MX tires?

**gavin** · 11-12-03, 19:43

Actually I'd been driving around on Bridgestone "Pretender" RE930i. The MXs are quite a step up, but its probably not a fair comparison. Im going from a 205/60/15 on a 6"wide rim to a 225/50/16 on an 8"wide rim, no contest. Still The MXs are ....interesting.

Grip is very good as they are rated at 220 treadwear(more on that in a sec). Noise is low except when you are slowing down(It caught me off guard initially). Steering response is great, but maybe not as snappy as your car (you had 215/45/17(?). Your sidewalls were much shorter than mine and becasue of that stiffer as well. The wear is unusual. They seemed to be very "220 treadwearish" but now that they have worn down a bit, they dont seem like 220 treadwear any more. Wear seems to be going at a much faster rate. Grip ,however, has also seemed to have increased. In fact Ive stopped driving on them but for autocrosses. The wear may be atributable to the alignment that I have on the car, but i dont recall the wear being this swift when they were new.

Bottom line..Im getting another set when these wear out. And Ill probably have Tirerack shave off a few 1/16ths beforehand.

Gavin

**MazdaMiester** · 11-14-03, 14:49

those wheels look great on there, bet it handles great as well. your tire has more tread width than your rear mud flap, i bet some people look real hard at that and wonder

my only concern would be for the front...the wheel bearings, when you extend the distance from where the wheel used to mount flush, to where it does now, it acts like its moving down a lever, thats that much more leverage the weight of your car has on the wheel bearings. tries to make the bearing be a fulcrum, though probably not much more stress than it is stock, still Ive seen lots and lots of front wheel bearings go bad(i had a pair, believe they sound great!) theoretically spacing them will wear them out faster and ive seen people with those stoooooooopid 14" spoke wheels that have had problems with bearings, but their case is a bit more extreme, and i have yet to see someone do that to an mx6(well an LE on ebay, a long time ago...) anyhow looks great! i always wondered what those wheels would look like on our cars

-Eric

**gavin** · 11-14-03, 22:04

I had thought about the wheelbearings also. In fact I had all of them replaced before doing this. Overall though I dont think there will be any undue stress to the wheelbearings with this setup, heres why.

If you think about it, the trick here is to have all of the loads forced through the centerline of the tires. If you have the stock rims(6"wide) there would be an imaginary line/point on the ground at its 3" centerline. Ideally, what I would need to do with the FD rims(8" wide) would be to space it enough so its 4" centerline is superimposed over the stockers 3" centerline. The loads are still transferred to the same imaginary point and the wheelbearings feel no pain.

I would have to do some measuring to see if Ive accomplished this, but I think Im somewhere (-/+5mm) in the neighborhood.

Gavin

10-5-03, 0:06	#17 (permalink)
91maz626lx Join Date: Jan 2003 Location: va beach Age: 25 iTrader: (0)	i can get parts at wharehouse plus 3% it aint to bad at all the offset can be changed with rings i just wana know if they will actually fit?
	mods:HP engine kit,9.0-1 comp pistons,act clutch,9lb flywheel,h/f oil pump,toga valve springs,napa metal head gasket,3 angle valve job,lightend pulley 2nd gen dropzone springs 2.5" drop,muffler,short shifter,cone filter,drilled and slotted zinc coated ebc's, ebc green stuff, s13 headlight(triple pro) future mods: X-KIT, mazdaspeed wheels, tokico blues, 440cc rc injectors, rear disc conversion. Units unity through sport unit-s.org

10-5-03, 16:32	#18 (permalink)
probepgt Join Date: Oct 2001 Location: ohio Age: 27 iTrader: (0)	go to the rx7 boards they say on there same off set as the fds.. later

10-6-03, 19:45	#20 (permalink)
91maz626lx Join Date: Jan 2003 Location: va beach Age: 25 iTrader: (0)	hahahahaha i was looking at the same thing. actually i was thinking of getting the seats,steering wheel,wheels and shift knob i thinkit's kinda expensive cause it lights up red and sh67 but i'll get a list price for ya. i was hoping the msp wheels would work just a pitty there 17"s i want 18"s i'll take a look at the price again and then make a decision
	mods:HP engine kit,9.0-1 comp pistons,act clutch,9lb flywheel,h/f oil pump,toga valve springs,napa metal head gasket,3 angle valve job,lightend pulley 2nd gen dropzone springs 2.5" drop,muffler,short shifter,cone filter,drilled and slotted zinc coated ebc's, ebc green stuff, s13 headlight(triple pro) future mods: X-KIT, mazdaspeed wheels, tokico blues, 440cc rc injectors, rear disc conversion. Units unity through sport unit-s.org

10-28-03, 4:08	#22 (permalink)
GT40man Join Date: Jan 2002 Location: jax fl Age: 44 iTrader: (0)	you still need a body kit
	1969 cougar vert, 1970 cougar, 1984 300zx, 1995 f150 4x4, still working on a 1966 gt40 mkii.

11-1-03, 0:53	#24 (permalink)
NPA! Join Date: Jun 2002 Location: Harrisburg, nPA! iTrader: (0)	Gavin, Do I see a stock exhaust?
	www.myrtlemadness.net

10-4-03, 23:59	#16 (permalink)
iggypop Join Date: Sep 2002 Location: Jacksonville, FL iTrader: (0)	how cheap an you get them (MSP rims ) ?? i think RX8 have even bigger off set then FD's ..

10-28-03, 0:46	#21 (permalink)
gavin Join Date: Jan 2001 Location: santa cruz.ca iTrader: (1)	Little update. As Iggypop had mentioned, when using spacers(especially as large as mine) you may run into the problem of snapping stud bolts. Not a pleasant scenario. Solution: longer, stronger stud bolts. Even though I had gone to the trouble of finding OEM applications that were thicker shouldered than the stock pieces, Rickyracers suggestion of ARP bolts made them immediately irrelavant. ARP 100-7708 hardened studs late model Corvette/Camaro/Firebird 2.5" long, 12x1.5 pitch, 13mm knurl @ 12$ for a pack of 5 not a problem. Gavin

10-28-03, 9:48	#23 (permalink)
gavin Join Date: Jan 2001 Location: santa cruz.ca iTrader: (1)	no! I dont wanna kit and you cant make me. :P Gavin

11-1-03, 1:37	#25 (permalink)
gavin Join Date: Jan 2001 Location: santa cruz.ca iTrader: (1)	Yes you do. The original I think. Its in surprisingly good shape. I suppose Ill change it one of these days when I stop mucking around with suspension. Gavin

11-10-03, 4:04	#26 (permalink)
TheUnknown Join Date: Oct 2002 Location: San Antonio, TX Age: 22 iTrader: (0)	heh, everytime i see the pics of gavins car i can't help but notice the zip tied brake lines...hows that workin for ya? and how long did it take to do that?

11-12-03, 7:24	#27 (permalink)
Ricky Racer Join Date: Sep 2001 Location: Anaheim CA Age: 51 iTrader: (0)	Looks good Gavin. Did you notice much difference in handling when you switched from the Ecsta 712s to the Kumo MX tires?
	Turbonetics Upgrade,Greddy Profec A,HKS IC pipes, 3'' Exhaust,MSD Digital 6,Magnecor, Mega Head Work, G-Force Chip,HKS SS BOV,Venom Pump,Aeromotive FPR,ShockTek Coilovers,Cusco Camber Plates F&R,KVR Rotors,AASCO Flywheel,Clutchmasters III,Autopower Roll Bar,SSR Comp Wheels.

11-12-03, 19:43	#28 (permalink)
gavin Join Date: Jan 2001 Location: santa cruz.ca iTrader: (1)	Actually I'd been driving around on Bridgestone "Pretender" RE930i. The MXs are quite a step up, but its probably not a fair comparison. Im going from a 205/60/15 on a 6"wide rim to a 225/50/16 on an 8"wide rim, no contest. Still The MXs are ....interesting. Grip is very good as they are rated at 220 treadwear(more on that in a sec). Noise is low except when you are slowing down(It caught me off guard initially). Steering response is great, but maybe not as snappy as your car (you had 215/45/17(?). Your sidewalls were much shorter than mine and becasue of that stiffer as well. The wear is unusual. They seemed to be very "220 treadwearish" but now that they have worn down a bit, they dont seem like 220 treadwear any more. Wear seems to be going at a much faster rate. Grip ,however, has also seemed to have increased. In fact Ive stopped driving on them but for autocrosses. The wear may be atributable to the alignment that I have on the car, but i dont recall the wear being this swift when they were new. Bottom line..Im getting another set when these wear out. And Ill probably have Tirerack shave off a few 1/16ths beforehand. Gavin

11-14-03, 14:49	#29 (permalink)
MazdaMiester Join Date: Jun 2001 Location: St.louis Missouri, MO, USA Age: 25 iTrader: (1)	those wheels look great on there, bet it handles great as well. your tire has more tread width than your rear mud flap, i bet some people look real hard at that and wonder my only concern would be for the front...the wheel bearings, when you extend the distance from where the wheel used to mount flush, to where it does now, it acts like its moving down a lever, thats that much more leverage the weight of your car has on the wheel bearings. tries to make the bearing be a fulcrum, though probably not much more stress than it is stock, still Ive seen lots and lots of front wheel bearings go bad(i had a pair, believe they sound great!) theoretically spacing them will wear them out faster and ive seen people with those stoooooooopid 14" spoke wheels that have had problems with bearings, but their case is a bit more extreme, and i have yet to see someone do that to an mx6(well an LE on ebay, a long time ago...) anyhow looks great! i always wondered what those wheels would look like on our cars -Eric
	'88 Mx-6 GT. http://www.youtube.com/wa '93 LS-ZE. Black on black leather. The "nice" car '92 B2200. The parts hauler '85 Rx7/'79 626-the cars that will run someday! Need $50? got a stock cat converter? PM me

11-14-03, 22:04	#30 (permalink)
gavin Join Date: Jan 2001 Location: santa cruz.ca iTrader: (1)	I had thought about the wheelbearings also. In fact I had all of them replaced before doing this. Overall though I dont think there will be any undue stress to the wheelbearings with this setup, heres why. If you think about it, the trick here is to have all of the loads forced through the centerline of the tires. If you have the stock rims(6"wide) there would be an imaginary line/point on the ground at its 3" centerline. Ideally, what I would need to do with the FD rims(8" wide) would be to space it enough so its 4" centerline is superimposed over the stockers 3" centerline. The loads are still transferred to the same imaginary point and the wheelbearings feel no pain. I would have to do some measuring to see if Ive accomplished this, but I think Im somewhere (-/+5mm) in the neighborhood. Gavin