October 22, 2019, 03:48:30 PM

Author Topic: Cupping tires on front - NT01  (Read 649 times)

Offline kinger

Re: Cupping tires on front - NT01
« Reply #15 on: October 08, 2019, 03:27:03 PM »
Yeah itís your twin disk with an undamped hub. Just gotta drive around it. 4th gear has the least natural damping in the transmission because it is straight through - hence the least amount of mass damping the harmonics.

My car sounds like itís literally shaking apart lol.

1800 rpm is a natural frequency of a 90* cross plane v8 engine. Youíll probably see it at 3600 too but at less of a magnitude.

Yes all exact on the money same as mine!  WTH does no one say anything about that!  $3k in a clutch and a vibration at 1800 rpm is a great surprise!  >:(
93 Touring, 6.3L, T56 Magnum, Mamo RPS BC2 clutch, FAST 90, NW 90TB TB, 8.8, samberg everything, AC, PS, TC, Cruise, LED Tails, HID head lights

Offline kinger

Re: Cupping tires on front - NT01
« Reply #16 on: October 08, 2019, 03:28:02 PM »
At least I know what it is.  Thank you MPbdy!
93 Touring, 6.3L, T56 Magnum, Mamo RPS BC2 clutch, FAST 90, NW 90TB TB, 8.8, samberg everything, AC, PS, TC, Cruise, LED Tails, HID head lights

Offline MPbdy

Re: Cupping tires on front - NT01
« Reply #17 on: October 08, 2019, 03:35:05 PM »
Yeah...our cars are extra sensitive to all this. You can find very minimal info about it on mustang forums about McLeod clutches, but camaros and corvettes must have enough damping you don’t notice it.

If it really bothers you I’ve picked out the Mantic clutches as probably the best option with the organic friction. I used to drive in that range all the time, but now just keep the revs higher.

Tech support suggested I stop “lugging” the engine. Some people lol.

Offline kinger

Re: Cupping tires on front - NT01
« Reply #18 on: October 08, 2019, 04:53:54 PM »
Thanks for info, the clutch is staying, its a hoot to drive!  I find myself always above 2K now just cause it works so much better so I will drive around it.  Was just hoping for best of everything.  Still highly recommended though! Car just flat out rips with new ratios and 33lb flywheel/clutch. 
93 Touring, 6.3L, T56 Magnum, Mamo RPS BC2 clutch, FAST 90, NW 90TB TB, 8.8, samberg everything, AC, PS, TC, Cruise, LED Tails, HID head lights

Online Cobranut

Re: Cupping tires on front - NT01
« Reply #19 on: October 08, 2019, 08:19:06 PM »
I haven't noticed that with my RXT, but then I don't really lug it down low in the higher gears.
If I drop below 2,000 it lopes so much that I drop a gear. 
It doesn't make much power down there anyway, and loading an engine at low rpm is hard on rods and bearings.
1995 FD, 7.0 Liter stroked LS3, T56, 8.8, Samberg kit.