Just installed my tranny brace
02-02-04, 06:51 PM
#103
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Re: Re: Just installed my tranny brace
Originally posted by SleepR1
BTW, did you reattach the transmission shield? The A-spec transmission brace doesn't allow you to do that unless you reinstall the stock aluminum cross brace in addition to the A-Spec brace. The stock piece has the the two 10-mm bolt holes that will accept the two 10-mm rear bolts of the tranny shield.
I'm not sure the 12-mm bolts are long enough to secure both braces; I don't think there's enough clearance between the midpipe and the passenger-side brace attachment to fit both braces?
The shield protects the transmission case from rock chips and other incidental debris, so I would require my shield be reattached somehow?
BTW, did you reattach the transmission shield? The A-spec transmission brace doesn't allow you to do that unless you reinstall the stock aluminum cross brace in addition to the A-Spec brace. The stock piece has the the two 10-mm bolt holes that will accept the two 10-mm rear bolts of the tranny shield.
I'm not sure the 12-mm bolts are long enough to secure both braces; I don't think there's enough clearance between the midpipe and the passenger-side brace attachment to fit both braces?
The shield protects the transmission case from rock chips and other incidental debris, so I would require my shield be reattached somehow?
02-02-04, 07:41 PM
#104
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Originally posted by Zero R
It doesn't do the same thing as the diff. brace, it has actually nothing to do with what the diff brace does. Diff brace limits diff movement, the trans brace limits trans movement.
It doesn't do the same thing as the diff. brace, it has actually nothing to do with what the diff brace does. Diff brace limits diff movement, the trans brace limits trans movement.
manny not having the trans pan is not a big deal. if you are going to hit something that bad the pan won't do a damn thing anyway
02-02-04, 08:13 PM
#105
Originally posted by Zero R
It doesn't do the same thing as the diff. brace, it has actually nothing to do with what the diff brace does. Diff brace limits diff movement, the trans brace limits trans movement.
It doesn't do the same thing as the diff. brace, it has actually nothing to do with what the diff brace does. Diff brace limits diff movement, the trans brace limits trans movement.
Jason
02-02-04, 08:31 PM
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Originally posted by Jason
When the trans shifts back so does the diff. They are all connected to each other. The only thing a trans brace is going to do is stop the side to side movement which is very little.
Jason
When the trans shifts back so does the diff. They are all connected to each other. The only thing a trans brace is going to do is stop the side to side movement which is very little.
Jason
02-02-04, 09:32 PM
#108
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Originally posted by Jason
Correct, but you can either stop that movement at the tranny or the diff. Im just saying that using both is probably pointless.
Jason
Correct, but you can either stop that movement at the tranny or the diff. Im just saying that using both is probably pointless.
Jason
02-02-04, 10:36 PM
#109
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Personally I think having the entire powertrain--engine, transmission, and rear diff--braced, maximizes driveline stiffness, and transmits maximum power/torque to the drive wheels. This is what I was after--maximum driveline efficiency. Eliminating the slop in the driveline transmits more of the engine's work to the rear tires for propelling the car forward. Eliminating all the slop in the driveline also gives you more throttle sensitivity to the rear drive tires. So yeah, I think the transmission brace is a good idea, even if you already have the ETB and rear diff brace installed.
vosko, I have OCD (obsessive compulsive disorder). It's OCD that makes me want to do stuff like put the transmission shield back on, after installing the A-spec transmission brace. It's OCD that makes me clean my engine bay regularly, so that it looks as good as it did brand new nearly 12 years ago. The only drug that lets me relax from OCD is adrenaline. I get that from open track driving. Unfortunately, open track driving with my daily driver feeds my OCD behavior because I must have a perfectly running car for me to drive it 9/10ths all day long.
It's a vicious cycle: insanity <--> joy <--> insanity.
vosko, I have OCD (obsessive compulsive disorder). It's OCD that makes me want to do stuff like put the transmission shield back on, after installing the A-spec transmission brace. It's OCD that makes me clean my engine bay regularly, so that it looks as good as it did brand new nearly 12 years ago. The only drug that lets me relax from OCD is adrenaline. I get that from open track driving. Unfortunately, open track driving with my daily driver feeds my OCD behavior because I must have a perfectly running car for me to drive it 9/10ths all day long.
It's a vicious cycle: insanity <--> joy <--> insanity.
Originally posted by vosko
100% correct. with both braces my engine didn't budge and i didn't break motor mounts and i need to waste money on a torque brace
manny not having the trans pan is not a big deal. if you are going to hit something that bad the pan won't do a damn thing anyway
100% correct. with both braces my engine didn't budge and i didn't break motor mounts and i need to waste money on a torque brace
manny not having the trans pan is not a big deal. if you are going to hit something that bad the pan won't do a damn thing anyway
Last edited by SleepR1; 02-02-04 at 10:54 PM.
02-03-04, 08:28 AM
#110
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Originally posted by SleepR1
Personally I think having the entire powertrain--engine, transmission, and rear diff--braced, maximizes driveline stiffness, and transmits maximum power/torque to the drive wheels. This is what I was after--maximum driveline efficiency. Eliminating the slop in the driveline transmits more of the engine's work to the rear tires for propelling the car forward. Eliminating all the slop in the driveline also gives you more throttle sensitivity to the rear drive tires. So yeah, I think the transmission brace is a good idea, even if you already have the ETB and rear diff brace installed.
vosko, I have OCD (obsessive compulsive disorder). It's OCD that makes me want to do stuff like put the transmission shield back on, after installing the A-spec transmission brace. It's OCD that makes me clean my engine bay regularly, so that it looks as good as it did brand new nearly 12 years ago. The only drug that lets me relax from OCD is adrenaline. I get that from open track driving. Unfortunately, open track driving with my daily driver feeds my OCD behavior because I must have a perfectly running car for me to drive it 9/10ths all day long.
It's a vicious cycle: insanity <--> joy <--> insanity.
Personally I think having the entire powertrain--engine, transmission, and rear diff--braced, maximizes driveline stiffness, and transmits maximum power/torque to the drive wheels. This is what I was after--maximum driveline efficiency. Eliminating the slop in the driveline transmits more of the engine's work to the rear tires for propelling the car forward. Eliminating all the slop in the driveline also gives you more throttle sensitivity to the rear drive tires. So yeah, I think the transmission brace is a good idea, even if you already have the ETB and rear diff brace installed.
vosko, I have OCD (obsessive compulsive disorder). It's OCD that makes me want to do stuff like put the transmission shield back on, after installing the A-spec transmission brace. It's OCD that makes me clean my engine bay regularly, so that it looks as good as it did brand new nearly 12 years ago. The only drug that lets me relax from OCD is adrenaline. I get that from open track driving. Unfortunately, open track driving with my daily driver feeds my OCD behavior because I must have a perfectly running car for me to drive it 9/10ths all day long.
It's a vicious cycle: insanity <--> joy <--> insanity.
02-03-04, 09:51 AM
#111
Originally posted by vosko
if you have just a diff brace it will not stop movement of the engine/trans and just crack your PPF alot. i should know i broke 3 PPF's before i put on the braces
if you have just a diff brace it will not stop movement of the engine/trans and just crack your PPF alot. i should know i broke 3 PPF's before i put on the braces
-Sean
02-24-04, 05:20 PM
#113
No it's not Turbo'd
Sorry to resurrect this thread, but I put on my Diff Brace a week and a half ago, and I can't say I'm happy... I guess wanting the power to be smooth and predictable, and saving my diff has caused other discomforts....
I have the Rx-7 Store's Midpipe Muffler, and the Diff Brace, Ordered from Rx-7 Store as well... (Are those kids college funds mature yet Jason ?
)
The Diff Brace, was not an easy fit, had to drill out the holes on the chassy side to make it fit. Even so the angle that the piece was bent at didn't match my car by at least 3-4 degrees... After all that the MP Muffler arm to the rubber suspension was not able to reach without bumping against the brace... So we sawed it off, and proceeded, now the exhaust flops around and you can hear it hit stuff when going over speedbumps or bad roads...
Also Vibration / Noise above 5 k rpm is noticable, and above 7 almost scarry.... at least for me for the first time... Felt like the drive shaft was going to explode (maybe a bit extreme) through the drive tunnel.... some definite vibration though....
I would strongly concider polyurathne suspension mounts for the diff, before buying this thing, which is possibly what I might go back to, just to see if it's a compromise between wheel hope and drivability.... Allthough for Drag Racers, who do a lot of launches I would say the discomfort might be part of the Price of Admission.
I have the Rx-7 Store's Midpipe Muffler, and the Diff Brace, Ordered from Rx-7 Store as well... (Are those kids college funds mature yet Jason ?
)The Diff Brace, was not an easy fit, had to drill out the holes on the chassy side to make it fit. Even so the angle that the piece was bent at didn't match my car by at least 3-4 degrees... After all that the MP Muffler arm to the rubber suspension was not able to reach without bumping against the brace... So we sawed it off, and proceeded, now the exhaust flops around and you can hear it hit stuff when going over speedbumps or bad roads...
Also Vibration / Noise above 5 k rpm is noticable, and above 7 almost scarry.... at least for me for the first time... Felt like the drive shaft was going to explode (maybe a bit extreme) through the drive tunnel.... some definite vibration though....
I would strongly concider polyurathne suspension mounts for the diff, before buying this thing, which is possibly what I might go back to, just to see if it's a compromise between wheel hope and drivability.... Allthough for Drag Racers, who do a lot of launches I would say the discomfort might be part of the Price of Admission.
02-24-04, 05:32 PM
#114
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I just looked last night and have a similar fitment issue as DCrosby. The holes on the chassis side seem to be almost a 1/4" short to match up.
Haven't decided if I'm going to drill them out to fit yet, but probably will and see what all the pros/cons are I;m seeing here are about.
Haven't decided if I'm going to drill them out to fit yet, but probably will and see what all the pros/cons are I;m seeing here are about.
02-25-04, 12:36 AM
#116
Originally posted by DCrosby
Sorry to resurrect this thread, but I put on my Diff Brace a week and a half ago, and I can't say I'm happy... I guess wanting the power to be smooth and predictable, and saving my diff has caused other discomforts....
I have the Rx-7 Store's Midpipe Muffler, and the Diff Brace, Ordered from Rx-7 Store as well... (Are those kids college funds mature yet Jason ? )
The Diff Brace, was not an easy fit, had to drill out the holes on the chassy side to make it fit. Even so the angle that the piece was bent at didn't match my car by at least 3-4 degrees... After all that the MP Muffler arm to the rubber suspension was not able to reach without bumping against the brace... So we sawed it off, and proceeded, now the exhaust flops around and you can hear it hit stuff when going over speedbumps or bad roads...
Also Vibration / Noise above 5 k rpm is noticable, and above 7 almost scarry.... at least for me for the first time... Felt like the drive shaft was going to explode (maybe a bit extreme) through the drive tunnel.... some definite vibration though....
I would strongly concider polyurathne suspension mounts for the diff, before buying this thing, which is possibly what I might go back to, just to see if it's a compromise between wheel hope and drivability.... Allthough for Drag Racers, who do a lot of launches I would say the discomfort might be part of the Price of Admission.
Sorry to resurrect this thread, but I put on my Diff Brace a week and a half ago, and I can't say I'm happy... I guess wanting the power to be smooth and predictable, and saving my diff has caused other discomforts....
I have the Rx-7 Store's Midpipe Muffler, and the Diff Brace, Ordered from Rx-7 Store as well... (Are those kids college funds mature yet Jason ?
)The Diff Brace, was not an easy fit, had to drill out the holes on the chassy side to make it fit. Even so the angle that the piece was bent at didn't match my car by at least 3-4 degrees... After all that the MP Muffler arm to the rubber suspension was not able to reach without bumping against the brace... So we sawed it off, and proceeded, now the exhaust flops around and you can hear it hit stuff when going over speedbumps or bad roads...
Also Vibration / Noise above 5 k rpm is noticable, and above 7 almost scarry.... at least for me for the first time... Felt like the drive shaft was going to explode (maybe a bit extreme) through the drive tunnel.... some definite vibration though....
I would strongly concider polyurathne suspension mounts for the diff, before buying this thing, which is possibly what I might go back to, just to see if it's a compromise between wheel hope and drivability.... Allthough for Drag Racers, who do a lot of launches I would say the discomfort might be part of the Price of Admission.
Some suggestions to those that are thinking about doing the diff brace.
You dont want to install this on the floor in your garage. The reason it was off a few degrees is the bar flexes and you have to mount it on the diff first and then use a bar to push the brace into position. We have installed a few of these and lower the car onto our tranny holder to put leverage on the brace. Flexing it into position so the holes lineup on the other side.
There is the issue with the midpipe arm, but we just bend that up so its out of the way.
Jason
02-25-04, 03:47 AM
#117
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as far as the vibration is concerned did you use any rubber washers or anything to cut down on vibration? that may help but im not sure how much
also id like to see someone integrate a diff brace into a chassis brace.... seems like a good idea to me.... jason, how about a knock off auto-exe bracing system w/ an integrated diff. brace, along with a tranny brace for a complete bracing kit package??? id get one for sure
maybe even add a bar from the diff. straight up to connect back to the body brace for even more rigidity.... and i would say have some good relativly flexable rubber washers anywhere the brace bolts to the drivetrain... rubber on tranny brace, and on diff mounting points.... the point of the drivetrain braces are to controll GROSS movement correct? some dampened limited movement for the drivetrain should be allowed (i wouldnt use rubber on chassis braces though)
also id like to see someone integrate a diff brace into a chassis brace.... seems like a good idea to me.... jason, how about a knock off auto-exe bracing system w/ an integrated diff. brace, along with a tranny brace for a complete bracing kit package??? id get one for sure
maybe even add a bar from the diff. straight up to connect back to the body brace for even more rigidity.... and i would say have some good relativly flexable rubber washers anywhere the brace bolts to the drivetrain... rubber on tranny brace, and on diff mounting points.... the point of the drivetrain braces are to controll GROSS movement correct? some dampened limited movement for the drivetrain should be allowed (i wouldnt use rubber on chassis braces though)
Last edited by RotorMotor; 02-25-04 at 04:07 AM.
02-25-04, 06:04 AM
#118
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i provide a link for install to show how it should be put on after someone buys it. i will PM the two of you the link. the fitment problems seem as if you dont know how to instal it properly hence the degrees and holes being off. that or you car is not straight.
rotor motor, if you want to send me a set of those to make your way, we can talk. PM me you contact number.
rotor motor, if you want to send me a set of those to make your way, we can talk.
PM me you contact number.
02-25-04, 08:53 AM
#119
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Reading through the thread, there is indication it is a straight bolt up. In my case, thats not completely accurate. My car is straight as it gets, but obviously there are variances even straight from the factory.
Honestly, I didn' try very hard to get it on. The car is on jack stands and I as thinking that maybe the diff was slightly turned or something.
Please PM with the link and I'll give it another look.
Thanks
Honestly, I didn' try very hard to get it on. The car is on jack stands and I as thinking that maybe the diff was slightly turned or something.
Please PM with the link and I'll give it another look.
Thanks
02-25-04, 09:26 AM
#120
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Originally posted by DCrosby
I would strongly concider polyurathne suspension mounts for the diff, before buying this thing, which is possibly what I might go back to, just to see if it's a compromise between wheel hope and drivability.... Allthough for Drag Racers, who do a lot of launches I would say the discomfort might be part of the Price of Admission.
I would strongly concider polyurathne suspension mounts for the diff, before buying this thing, which is possibly what I might go back to, just to see if it's a compromise between wheel hope and drivability.... Allthough for Drag Racers, who do a lot of launches I would say the discomfort might be part of the Price of Admission.
It will take some tinkering for whomever is so inclined to try and fit some bushing like material or redesign the initial version to address these issues.
02-25-04, 09:29 AM
#121
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So how much vibration are we talking about guys? Some people say then dont have any and others make it seem like thier car is going to vibrate apart.
I dont really like vibration. I'm hoping its not going to be much at all if any.
(SPOautos crosses his fingers lol )
STEPHEN
I dont really like vibration. I'm hoping its not going to be much at all if any.
(SPOautos crosses his fingers lol )
STEPHEN
02-25-04, 11:28 AM
#122
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my car had a nice RING to it.... on a free rev. if you can't take a vibration.... you shouldn't own a FD. they rattle, creek, make all sorts of noises.... i also had an open wastegate too... just keep telling yourself its a race car
02-25-04, 12:09 PM
#124
No it's not Turbo'd
Originally posted by rxrotary2_7
i provide a link for install to show how it should be put on after someone buys it. i will PM the two of you the link. the fitment problems seem as if you dont know how to instal it properly hence the degrees and holes being off. that or you car is not straight.
rotor motor, if you want to send me a set of those to make your way, we can talk. PM me you contact number.
i provide a link for install to show how it should be put on after someone buys it. i will PM the two of you the link. the fitment problems seem as if you dont know how to instal it properly hence the degrees and holes being off. that or you car is not straight.
rotor motor, if you want to send me a set of those to make your way, we can talk.
PM me you contact number.
In the case of the Midpipe, I was allready @ the muffler shop and he didn't charge me much to re-weld the muffler to accomodate the change in angle... -> Hence no bitching
As an added note, he also seems to ajust his designs, to make changes so I might have gotten an early version of his product. So future products are likely to see less and less issues as time goes on...
Last edited by DCrosby; 02-25-04 at 12:17 PM.
02-25-04, 12:35 PM
#125
Originally posted by DCrosby
The most refreshing part of this whole experience has been rxrotary2_7's concern for the issues I was having, instead of just chalking it up to another nut who bitches a lot. The fact is most parts, incl. Rotary Extreme, and other manufacturers, incl. the Midpipe from Rx7store.net didn't fit my car perfectly, the midpipe forced the exhaust against the tow hook at the back.. Made an annoying racket... So most things purchased have to be "Adjusted" to work as expected... It's when I have to go out of my way to get something installed that I thought I could do myself that I get a bit upset, since that costs me $$ over what I expected to spend on a specific job... in this case I ended up going to a body shop that referred me to a muffler shop for the welding and fittment... which I can highly reccomend if you're in the West L.A. Area...
In the case of the Midpipe, I was allready @ the muffler shop and he didn't charge me much to re-weld the muffler to accomodate the change in angle... -> Hence no bitching
As an added note, he also seems to ajust his designs, to make changes so I might have gotten an early version of his product. So future products are likely to see less and less issues as time goes on...
The most refreshing part of this whole experience has been rxrotary2_7's concern for the issues I was having, instead of just chalking it up to another nut who bitches a lot. The fact is most parts, incl. Rotary Extreme, and other manufacturers, incl. the Midpipe from Rx7store.net didn't fit my car perfectly, the midpipe forced the exhaust against the tow hook at the back.. Made an annoying racket... So most things purchased have to be "Adjusted" to work as expected... It's when I have to go out of my way to get something installed that I thought I could do myself that I get a bit upset, since that costs me $$ over what I expected to spend on a specific job... in this case I ended up going to a body shop that referred me to a muffler shop for the welding and fittment... which I can highly reccomend if you're in the West L.A. Area...
In the case of the Midpipe, I was allready @ the muffler shop and he didn't charge me much to re-weld the muffler to accomodate the change in angle... -> Hence no bitching
As an added note, he also seems to ajust his designs, to make changes so I might have gotten an early version of his product. So future products are likely to see less and less issues as time goes on...
Jason