360 430 engine mounts in 360 Modena...vibration

Do you have the exact PN used? I believe there are also challenge/enzo mounts that are more stiff. I put those in my F430 and don't mind them. I did have to tighten the rear tail lamps as it shook them more.

 

If they are upgraded ones from the factory (even Challenge ones) they aren't going to hurt anything. I'm surprised you can tell though, if its vibrating that much its more likely related to the firmware and possibly some worn out components like plugs or coils.

If your still running on stock '99 MY software on your car the stock calibration can be improved on pretty dramatically, the factory did just this but sadly never retrofitted it to older models. The only thing that you may experience however is that some faulty components may be highlighted as CEL's by the newer firmware because not all diagnostics checks work properly on the early cars. Its why people think '99's are so reliable, they just cannot see the faults lol...

 

The car vibrating can be normal like any car, but a certain amount is also not normal. Any advice I give can only be what I’ve learned from my own car, so I’m not super knowledgeable, but check the engine timing between banks (Mine was almost 3° off between banks), and also check when the transmission mount was last replaced.

 

That previous owner should be fired. No right person would only change 1/2 of the spark plugs and coils. Do them all whether it's lefts side or right or bank 1 or bank 2.

 

Right? It seems odd.

 

Coils not in ferrari box are 350 and plugs are 60.. 1 hr tops

 

I'll rake them shoot me a pm

 

They are stiff.