cewrx7r1

iTrader: (2)

My friend Kyle Krutilek makes this and it works very well. It stops the side to side motion of the trans when shifting. Really helps when going from 2nd to 3rd gear. If interested, contact me directly.

Johnny

hook me up...

just emailed you...

the_saint

I have a similar set up but mine is bolted to the side of the engine bay. What do you have in between the bar and the side of the bay?

I agree, it makes a huge difference in how the car feels when shifting. No engine movement at all. The drivetrain feels very very tight. My only concern is what will happen to the lower intake manifold to where the engine hoist mount is attached.

Nice thing is that it only costs 1/10 of what they sell for, if you DIY.


Mike

FourtyOunce

iTrader: (15)

doesnt that put unnecessary stress on the upper and lower intake manifold? wouldnt that cause cracking on those parts, esp on high HP/torque cars?

cewrx7r1

iTrader: (2)

The RED thing is a trans bushing from Energy Suspension. It helps absorbe any shock/vibration.

The intake manifold also has another support by the throttle body. That same point is used to lift the engine for R&R. True it puts more strain on the lower instake attachement but it is spread out amongst 5 fasteners. It might not be best for drag racing, but for street use should be OK.

It is your choice. Just like heavier springs/shocks put more load on the suspension attachment points and ball-joints due to shock. Nobody seems to ever mention that!

Flybye

Solid motor mounts do the same thing, but this IS pretty to look at :p

I've seen similiar setups but where it was attached to the front of the engine. Where exactly is the end with the bushing bolted to?

the_saint

I agree solid engine mounts do the same thing, but you can make a torque reaction strut for less than $50 versus several hundred dollars for the engine mounts. Although as previously stated, I am not sure what the long term ramifications of the brace will be on the short block and intake manifolds. On the street it probably is on inconsequence,but at the track it might prove to be detrimental. Don't the FCs use a similar brace?

It attaches to the passenger side engine bay wall. The bracket I am using has holes that line up exactly with the predrilled (stock) holes. It bolts up with I believe #8 metric bolts.

I thought of using a brace that went from the strut tower bar to the front engine hoist mount, but that probably is not a good idea.

the_saint

pedro kim

I have seen something similar, but with a strut tower bar with a motor brace arm it is used for the 86-91rx7 from mazdatrix

badass7

I've seen this on one of those Japanese Rx-7 websites ! So, what is the price on this? I am interested. May be able to get a group purchase together as well.




Ted Alvendia
President
"Sevens on the Shore" Rx-7 Club of New Orleans, LA
http://ourworld.cs.com/talvendi

Hyperite

Yeah if you get a good price goin for a group, i'm in.
~Tom

A-Spec

if you want something that helps with the transmission movement. Here's an better alternative. It replaces the crossbar under where the PPF and the transmission connects. The center attaches to the ppf/trans and the other two points across the transmission tunnel. This would keep the trans from moving too much and maybe? it would help with the PPF cracking. (the point where the trans mounts to the ppf is a common breaking point)



David

A-Spec

here's another, it uses a really stiff shock to dampen the force and also decrease vibration.

David

SPEED_NYC

iTrader: (3)

A=Spec, where can i get the brace you have pictured? and how much $?

A-Spec

which? the trans mount or the HPI ? The trans mount is made by some guy in Japan, abot $200 shipped from Japan. The HPI is about the same price. If you want them I can get them for you from Japan.

David

the_saint

I like the idea of the tranny brace. I wonder how much more of a difference it makes if you already have a torque reaction strut in the engine bay. Probably doesnt hurt to have.


Nice.


the_saint

A-Spec

The Transmission brace is made by a lot of companies in Japan. You can make your own if you have a welder. In my opinion it is a lot better at keeping the trans from moving. But the engine brace works better at saving your engine mount.

David

RotaryKnight

The use the Torque control arm on most Japanese FD. The reason is that the motor will hit the steering(RHD cars) under hard acceleratoin. Most Japanese tuners have a version of their own ususally they look like a small shock like on our rear hatch. If you buy a Japanese one you will have to modify the bracket where it bolts to the frame....the US ABS gets in the way.

KnightSports, Amemiya, Anniversary, FEED and, R Magic I believe all have their version of it. The XS engineering FD has a Anniversary one on it. They usually run about 150-200 depending where you get it from.

A-Spec

heheh anniversary was a far walk, I should've mailed ordered it

David

PS I think he just used a few washers to clear the one of the bolt holding the brake line on the abs unit.

Mr. Stock

A-Spec

Do you have one of these trans braces on your car?
If so, can we see a pic of it mounted?
Thanks,

Ed

BTW, what or who is your contact in Japan?

A-Spec

ooops major grammer problem on my previous post.

nope I have not used either one. I got the anniversary for the xs car, and they made their own tyranny mount. I will be installing the trans mount when I get back to the states. So pics will be up later.

um I call the shops to order the parts or take their marveleous train system and shop around.

David

SPEED_NYC

iTrader: (3)

A-Spec, do you or anybody else have pics of the shock or tranny brace installed on the XS car? this is thier blue car we're talking about right?

CrispyRX7

iTrader: (139)

I made one of these about 2 years ago.
See details:
http://reganrotaryracing.tripod.com/powrbar.htm
Sorry for the small images and it is obvious now that the price of the Japanese product has dropped but at the time I made mine it was listed for $380.
Regards,
Crispy

stevecod

tom, i'm selling mine for $100 let know if you're interested.

steve

the_saint

I made mine thanx to CrispyRX7, he gave me all the dimensions and helped out greatly. Thanks CrispyRX7, it made a huge difference, but transmits more vibration and noise.

A torque strut bar will really tighten up the drive train. It seems odd but you get used to the sensation of no drivetrain windup.

the_saint

IGY

I have both on my car. The engine brace serves about the same service as solid engine mounts. The tranny brace helps in preventing the 2nd to 3rd gear miss shifts while drag racing. If you don't like to feel the vibration of the engine or drivetrain don't do these mods. The engine brace wasn't to bad as far as noise goes, but if you do the tranny brace, I hope you like hearing a constant gear whine. Another thing that I have done, is to make solid diff mounts(welded big *** washers over the bushings. This mod helps to prevent wheel hop, but also adds to the noise factor substantially.