Banzai vs Racing beat

vex · 03-03-2009, 04:11 PM

Mazda Comp mounts are amazing. I could tell a difference right away (well... I did have a broken stock motor mount) and there is no vibration coming through unless your engine is on the fritz or in need of a rebuild... which reminds me.

firzen · 03-03-2009, 05:05 PM

Don't use hockey pucks. However, I did know a guy that used the window sealant stuff on his old motor mounts to stiffen them up. Worked out quite well and doesn't feel too bad.

Problem with Garfinkle's brace is it's FD specific...

Mazdatrix also sells a strut tower bar that has a torque brace but that thing is on the front...

Ender · 03-03-2009, 05:35 PM

Quote:

Originally Posted by djmtsu

1) The arm for the brace goes to the wrong side of the engine bay (should go to the passenger side)

With it on the driver's side the accelerating torque pulls on the bar and pushes on decelerating torque, isn't that better for a solid rod? I know some torque braces use hydraulic or gas pistons so to me it makes sense for those to be mounted to the other side, compresses on accel and stretches on decel.

Quote:

Originally Posted by djmtsu

2) There is no real support for the brace where it mounts to the sheet metal (can rip out f you have enough torque and a bad engine mount)

I could see that happening, maybe.... the rubber bumpers on the RB bar mount will apply force over an area of approximately 1.5 to 2 square inches. Even making 600ft lbs of torque, the bar connects at what, 18" from the centerline of the e-shaft? That would apply 400lbs to a bumper against the sheet metal... I guess I don't know if that would be enough to tear it out, maybe after a lot of abuse. I'm gonna guess that if you're making 600ft lbs of torque with any 13B or a 12A you will already have something else figured out to keep your motor from tearing itself out of your engine bay, but I don't know.

WE3RX7 · 03-03-2009, 06:36 PM

So what I'm hearing is Garfinkle should start making FC versions, lol....

djmtsu · 03-03-2009, 08:03 PM

He said something about it long ago, but it never happened. Now he lives 40 minutes away instead of 2 minutes, and I don't know of any FC's where he lives now.

Whizbang · 03-03-2009, 09:12 PM

hockey pucks eh?

Rotary#10 · 03-03-2009, 11:22 PM

Quote:

Originally Posted by Low Impedance

hockey pucks eh?

anyone up for a friendly game of hockey? mmm just reading this it makes sense to me about the top of the motor twisting, i didn't know that.. mmm learn something new everyday...

Fidelity101 · 03-04-2009, 12:20 PM

I dont want stock ones, and I don't want to break bank for solid mounts so within the next couple weeks I am getting mazda comp trans/motor mounts for when the motor/trans goes back in the car.

I had a broken P side engine mount too

Max777 · 03-04-2009, 03:39 PM

i dunno, the reason I didn't get the Mazdacomp mounts was because the stock design which is prone to failing....

After a while I will report back on my banzai mounts, to see if I can give some insight.

My5ABaby · 03-05-2009, 07:12 AM

Quote:

Originally Posted by Max777

i dunno, the reason I didn't get the Mazdacomp mounts was because the stock design which is prone to failing....

After a while I will report back on my banzai mounts, to see if I can give some insight.

Maybe because I own an N/A, but I've never heard the stock mounts are prone to failing. Granted, many of the stock mounts are bad on FC's, but they're also at least 18 years old and likely have over 100,000 miles on them. You'll be hard pressed to find anything non-metal (or metal...) on the exterior of the car that's in good shape after that long.

However, I would be more than glad if you could find some posts about the stock ones failing as I am thinking of replacing mine for peace of mind (although Kevin said they were fine as of 3 years ago on my 86 with 120k+ miles).

classicauto · 03-05-2009, 01:48 PM

Quote:

Originally Posted by My5ABaby

Maybe because I own an N/A, but I've never heard the stock mounts are prone to failing. Granted, many of the stock mounts are bad on FC's, but they're also at least 18 years old and likely have over 100,000 miles on them. You'll be hard pressed to find anything non-metal (or metal...) on the exterior of the car that's in good shape after that long.

Not to mention, most of them are absolutely DRENCHED in oil. Which will swell and rot the rubber nice and quickly.

Max777 · 03-06-2009, 12:04 AM

Well, one of the mounts on the thread-starters FC project car was done, and the other was better, but if you look close the rubber is always micro-cracked on all the ones I've inspected so far, including some I got with my short block.

Maybe it's because of owning a car with a REALLY sloppy drivetrain before( 1996 Mercedes C220) that I want to have my drivetrain "planted" and not move at all. Also big part is that I am planning on doing some drifting, and drivetrain slop really sucks for that.

Nopis1O · 03-14-2009, 10:50 AM

[QUOTE=Max777;75603]Well, one of the mounts on the thread-starters FC project car was done, and the other was better, but if you look close the rubber is always micro-cracked on all the ones I've inspected so far, including some I got with my short block.QUOTE]

I wouldnt say there prone to failing. max being micro cracked would fall under the terms ageing or weathering. im sure with 20 years of abuse most mounts would have micro cracks. And as far as the design being the same as mazdas oem. if its good enough for mazda then its good enough for me.

03-03-2009, 04:11 PM	#16
vex RCC Loves Me Not You Join Date: Jul 2008 Location: Influx. iTrader: (6) Posts: 2,113 Rep Power: 19	Mazda Comp mounts are amazing. I could tell a difference right away (well... I did have a broken stock motor mount) and there is no vibration coming through unless your engine is on the fritz or in need of a rebuild... which reminds me. __________________ The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group

03-03-2009, 08:03 PM	#20
djmtsu My minds tellin' me no... Join Date: Feb 2008 Location: Murfreesboro, TN iTrader: (10) Posts: 4,043 Rep Power: 21	He said something about it long ago, but it never happened. Now he lives 40 minutes away instead of 2 minutes, and I don't know of any FC's where he lives now. __________________ 1976 Mazda Cosmo RX-5 1976 Mazda Cosmo RX-5 2003 Toyota Tundra TRD 2015 Toyota 4Runner SR5

03-03-2009, 09:12 PM	#21
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	hockey pucks eh? __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

03-04-2009, 12:20 PM	#23
Fidelity101 Reliable Source Join Date: Nov 2008 Location: Michigan/Illinois iTrader: (1) Posts: 336 Rep Power: 17	I dont want stock ones, and I don't want to break bank for solid mounts so within the next couple weeks I am getting mazda comp trans/motor mounts for when the motor/trans goes back in the car. I had a broken P side engine mount too __________________ My Rx-7 Vids

03-04-2009, 03:39 PM	#24
Max777 Pirate Join Date: Mar 2008 Location: Central IL iTrader: (5) Posts: 1,323 Rep Power: 18	i dunno, the reason I didn't get the Mazdacomp mounts was because the stock design which is prone to failing.... After a while I will report back on my banzai mounts, to see if I can give some insight. __________________ Rotaries:They are NOT that complicated!

03-03-2009, 05:05 PM	#17
firzen Rotary Fanatic Join Date: Mar 2008 iTrader: (2) Posts: 231 Rep Power: 17	Don't use hockey pucks. However, I did know a guy that used the window sealant stuff on his old motor mounts to stiffen them up. Worked out quite well and doesn't feel too bad. Problem with Garfinkle's brace is it's FD specific... Mazdatrix also sells a strut tower bar that has a torque brace but that thing is on the front...

03-03-2009, 06:36 PM	#19
WE3RX7 RCC Addict Join Date: Feb 2008 Location: VA iTrader: (1) Posts: 1,812 Rep Power: 18	So what I'm hearing is Garfinkle should start making FC versions, lol....

03-06-2009, 12:04 AM	#27
Max777 Pirate Join Date: Mar 2008 Location: Central IL iTrader: (5) Posts: 1,323 Rep Power: 18	Well, one of the mounts on the thread-starters FC project car was done, and the other was better, but if you look close the rubber is always micro-cracked on all the ones I've inspected so far, including some I got with my short block. Maybe it's because of owning a car with a REALLY sloppy drivetrain before( 1996 Mercedes C220) that I want to have my drivetrain "planted" and not move at all. Also big part is that I am planning on doing some drifting, and drivetrain slop really sucks for that. __________________ Rotaries:They are NOT that complicated!

03-14-2009, 10:50 AM	#28
Nopis1O Rotary Fanatic Join Date: Apr 2008 Location: Mid State Illinois iTrader: (0) Posts: 159 Rep Power: 17	[QUOTE=Max777;75603]Well, one of the mounts on the thread-starters FC project car was done, and the other was better, but if you look close the rubber is always micro-cracked on all the ones I've inspected so far, including some I got with my short block.QUOTE] I wouldnt say there prone to failing. max being micro cracked would fall under the terms ageing or weathering. im sure with 20 years of abuse most mounts would have micro cracks. And as far as the design being the same as mazdas oem. if its good enough for mazda then its good enough for me. __________________ 1988 Fc Vert. Super Stock 1990 Fc Hard top: Brideported 13b, weber carb, 350z wheels w/nitrogen, or 16in BBS meshies, Msd, Racaro Racing Seats, Custom Gauge cluster, custom Intake, Relocated Battery, 3inch header back borla exhaust system, Alpine stereo system, Wire tucked, S4 shift boot&knob, custom Strut bar, And soon to come a Full black w/ gold pearl paint job, powder coated break calipers, all black interior, bride headliner/door panels.