Mod or a way to get rid of some $$?

A&Q about 350Z
Q:


I was searching e-bay for some parts and came across this, anyone know if this is for real ? or just another way to part you with your money?
I not going to get it either way but just wanted some technical feedback?
-03- Touring -AT-
A:

Yeah. It is real, but not worth it.
Basically, your engine mounts at the bottom, so when you slam on the throttle the torque will cause the top of the engine to tilt. This tilt is somewhat managed by the motor mounts, but when it happens it does decrease the torque output to the wheels (because the extra torque is wasted keeping the engine in tilted position)
So basically this bolts inbetween the top of the engine and the strut tower to force more torque to the wheels rather than being wasted compressing the motor mounts and tilting the engine.
So yes, it will work... but you probably won't notice anything until your engine has over 400HP. And anyway, a much better way of doing this is to replace the motor mounts with solid aluminum mounts, which do not compress at all.
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1985 300ZX n/a
A:

Where do you get those and who would use them?
A:

Solid aluminum mounts? I got some on my 300zx. They sell them for the z32 (which are the ones I used)
You really don't need them unless you have huge power, but my car is now officially out of commission until the new motor is in, and my goals are set at 420RWHP and 450ft/lbs torque.
benefits of solid mounts: Zero flex or compression which equates to much more torque to the wheels.
drawbacks: more vibration and drivetrain are felt through the car, more stress on drivetrain components.
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1985 300ZX n/a
A:

fwd Hondas are a totally different animal, and I can see how stiffer motor mounts might help them in drag racing. On fwd applications, the inboard ends of the halfshafts are mounted to the transaxle which is mounted to the engine. Also, the motor mounts are having to react the torque reaction AFTER it's been multiplied by the final drive ratio, or 3-4 times the amount the motor mounts in most rwd applications have to deal with. I can see how stiffer motor mounts could reduce windup-induced wheel-hop in a transverse-engine fwd car. On the Z, the inboard ends of the halfshafts are connected to the diff, not to the motor/tranny assembly, so they're much less coupled to rocking of the motor on its mounts, and those mounts don't have to deal with as much torque (relatively) anyway.
A:

Thank you all for all the info, just wanted to have the mechanics expained :)
-03- Touring -AT-
A:

I need some money, can you give me some?
A:

MY son has a dampener on his car He is running a 02 sentra specV fully built and boosted putting down 425 hp thru the front wheels . the dampener works great controling wheel hop.
1984 300ZX Turbo 5 Speed - 38k miles
1969 Z/28 Camaro 4 Speed - 42k original miles 06Touring redline 6 speed
A:

For those who didn't catch it the first time, fwd = totally different. Engine mounts/dampers aren't going to make an ounce of difference as far as wheel hop goes on a 350Z.
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